Having Seal Feature Patents (Class 429/185)
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Patent number: 9263725Abstract: Provided are a secondary battery case and a method for manufacturing a secondary battery. The secondary battery case includes a can accommodating an electrode assembly and a top cap sealing an upper opening of the can. The top cap includes a top plate sealing the upper opening of the can, a filling hole passing through the top plate to fill an electrolyte into the can, and a protrusion protruding from the top plate on an upper portion of the filling hole. The protrusion is press-fitted into the filling hole to seal the filling hole. According to the present invention, the protrusion may protrude from the top plate. Thus, the protrusion may be press-fitted into the filling hole and thus broken to seal the filling hole. Therefore, the member for sealing the filling hole may be integrated with the top plate to reduce manufacturing costs and simplify a manufacturing process.Type: GrantFiled: May 21, 2014Date of Patent: February 16, 2016Assignee: LG CHEM, LTD.Inventors: Sin Young Park, Jeoung Soo Kim, Dong Sub Lee, Sang Bong Nam, Hang Seob Yoon, Hyang Mok Lee, Dong Hee Seo, Hyun Kyung Ko, Sang Jin Woo
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Patent number: 9263198Abstract: An electric double-layer capacitor having a capacitor element, a package defining a closed space accommodating the capacitor element, and electrolytic solution loaded in the closed space. The package includes a body and a lid, and the body has a metallic portion and a resin portion. The metallic portion includes two lead-out terminals electrically coupled to the capacitor element, and these two lead-out terminals are electrically isolated from each other by the resin portion. The resin portion includes two projections extending into the closed space, which make the closed space narrower and reduce the amount of loading of the electrolytic solution.Type: GrantFiled: September 17, 2013Date of Patent: February 16, 2016Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hiroyuki Harada, Masaharu Itaya
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Patent number: 9252407Abstract: A battery module including a plurality of battery cells and a cover, each battery cell having a vent portion aligned in one direction, and the cover being over the vent portions, the cover including an internal cavity and at least a portion of the internal cavity including a heat-resistance member.Type: GrantFiled: September 22, 2011Date of Patent: February 2, 2016Assignees: SAMSUNG SDI CO., LTD., ROBERT BOSCH GmbHInventor: Myung-Chul Kim
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Patent number: 9240617Abstract: An electrode assembly for a secondary battery comprising an adiabatic plate attached to the negative electrode plate is disclosed. The electrode assembly comprises a positive electrode plate having a positive electrode collector, a positive electrode coating, and a non-coated area on the positive electrode collector. The negative electrode plate has a negative electrode collector, a negative electrode coating, and a non-coated area on the negative electrode collector. A separator insulates the positive and negative electrode plates. Positive and negative electrode tabs are attached to the non-coated areas of the positive and negative electrode collectors. The negative electrode plate has an adiabatic plate attached to the surface of a non-coated area of the negative electrode collector that is opposite the surface to which the negative electrode tab is attached.Type: GrantFiled: May 24, 2005Date of Patent: January 19, 2016Assignee: Samsung SDI Co., Ltd.Inventor: Cheon Soo Kim
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Patent number: 9231234Abstract: Provided is a small-sized cylindrical battery in which improvement in battery characteristics and improvement in long-term reliability and safety are both realized. The cylindrical battery includes: a bottomed cylindrical battery case 1, an electrode group 5 housed together with an electrolyte in the battery case 1, a sealing member 8 fitted into an opening of the battery case 1, and a gasket 9 interposed between the sealing member 8 and the battery case 1. The opening of the battery case 1 is sealed by applying a drawing process to an opening end portion of the battery case 1. The battery case 1 is constituted of stainless steel. The battery case 1 has an outer diameter of 10 mm or less and a thickness of 0.05 mm or more and 0.2 mm or less.Type: GrantFiled: March 29, 2013Date of Patent: January 5, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Akira Kakinuma, Keisuke Yoneda, Kenjin Masumoto
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Patent number: 9231235Abstract: A battery pack includes a pouch-type bare cell, a protecting circuit module, a top case and a protecting circuit module support part. The pouch-type bare cell has a sealing region positioned in an extraction direction of an electrode lead. The protecting circuit module is positioned in the sealing region and connected to the electrode lead. The top case surrounds the protecting circuit module. The protecting circuit module support part is provided between the top case and the protecting circuit module. Accordingly, the protecting circuit module support part is formed between the top case and the protecting circuit module, so that it is possible to prevent a component mounted on the protecting circuit module from being damaged by an external impact and to prevent the inflow of a foreign matter from the outside of the battery pack, thereby improving the reliability and safety of the battery pack.Type: GrantFiled: September 6, 2012Date of Patent: January 5, 2016Assignee: Samsung SDI Co., Ltd.Inventors: Seong-Joon Lee, Ki-Sik Pak
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Patent number: 9209434Abstract: In one embodiment, a cap for an energy storage cell is provided, the cap including: a body including a dome formed therein, the dome including a through-way; and, an electrode assembly including a hemispherically shaped electrical insulator surrounding an electrode; wherein the insulator is disposed in and hermetically seals the dome and the electrode is electrically separated from the body by the throughway. A method of manufacture and an energy storage cell are also disclosed.Type: GrantFiled: November 19, 2012Date of Patent: December 8, 2015Assignee: FastCAP Systems CorporationInventor: James Epstein
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Patent number: 9196883Abstract: A battery module including a battery array including: a plurality of battery cells, each including a first surface at a first end of the battery cell; an electrode terminal at the first end; a second surface at a second end of the battery cell opposite the first end; and a side surface extending between the first and second ends, the second surfaces of first and second battery cells of the plurality of battery cells facing each other.Type: GrantFiled: September 23, 2011Date of Patent: November 24, 2015Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbHInventors: Myung-Chul Kim, Hyun-Ye Lee, Hee-Joon Jin, Seung-Woo Yang, Kwon Sohn
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Patent number: 9190638Abstract: A sealing case includes a main body with an opening, the main body including a housing space therein, a cover configured to cover the opening of the main body, a first fastening portion along an outer circumferential portion of the opening of the main body, a second fastening portion on the cover and corresponding to the first fastening portion, and a sealing member interposed between the main body and the cover, the sealing member having a ‘U’ shape and being fitted between the first fastening portion on the main body and a second fastening portion on the cover.Type: GrantFiled: March 14, 2013Date of Patent: November 17, 2015Assignee: SAMSUNG SDI CO., LTD.Inventors: Jun-Ho Lee, Sang-Kyu Ahn
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Patent number: 9172069Abstract: An easy-to-assemble battery sealing structure is provided. A cell frame includes a battery plate-like member (bipolar plate), a pair of frames for holding a peripheral portion of bipolar plate therebetween and pressing the peripheral portion from the front and the rear, and an annular packing made of an elastic material. Frames are provided with an annular groove between respective surfaces of the frames facing each other, for accommodating the peripheral portion of bipolar plate. Packing is mounted on the peripheral portion of bipolar plate, arranged in annular groove, and press-contacted between frames and the peripheral portion of bipolar plate. Packing includes a pair of legs for holding the peripheral portion of bipolar plate therebetween, and a base connecting legs together.Type: GrantFiled: March 30, 2012Date of Patent: October 27, 2015Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Hiroyuki Nakaishi, Yasumitsu Tsutsui
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Patent number: 9159962Abstract: A battery including cladding members in which a metal layer, an external resin layer, an inner resin are laminated; an electrode body which includes a positive electrode and a negative electrode; electrolyte which is accommodated in the cladding member; a positive electrode lead which is electrically connected to the positive electrode; and a negative electrode lead which is electrically connected to the negative electrode, the thickness of the heat sealed portions of both end portions of the positive electrode lead is formed larger than the thickness of the heat sealed portion on a center line in a width direction of the positive electrode lead, and the thickness of the heat sealed portions of both end portions of the negative electrode lead is formed larger than the thickness of the heat sealed portion on a center line in a width direction of the negative electrode lead.Type: GrantFiled: October 11, 2012Date of Patent: October 13, 2015Assignee: Sony CorporationInventors: Hiroshi Takabayashi, Tetsuya Makino, Akira Sasaki, Koji Shimotoku
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Patent number: 9153798Abstract: An explosion-proof secondary battery includes a shell, an anode cap, a sealing ring, and a separating structure. The shell defines an opening on the top, and the shell comprises a crimping portion extending from the opening; the anode cap is disposed in the opening and latched with the crimping portion; the sealing ring is configured to seal a gap between the anode cap and the crimping portion; and a separating structure is disposed in the gap, and the separating structure resists the sealing ring; wherein the gap is remained when the sealing ring is melted, the anode cap is fixed to the shell by the crimping portion. In the explosion-proof secondary battery, due to the separating structure resisting the sealing ring, there is a gap between the anode cap and the periphery of the crimping portion of the shell, the internal gas of the explosion-proof secondary battery may successfully exhaust from the gap.Type: GrantFiled: November 9, 2012Date of Patent: October 6, 2015Assignee: SHENZHEN HIGHPOWER TECHNOLOGY CO., LTD.Inventors: Wenliang Li, Zhixiong Zhou, Yuanxian Liu, Lingkun Kong
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Patent number: 9147867Abstract: An electric storage device includes an electrode assembly, a case, and a sealing member. The case includes a gas exhaust portion that opens to exhaust internal gas when an internal pressure increases. The sealing member is affixed to the case. The sealing member includes a protective portion and at least one of a perforation and a thin section having a thickness smaller than another section of the sealing member. The protective portion covers the gas exhaust portion of the case.Type: GrantFiled: February 14, 2013Date of Patent: September 29, 2015Assignee: GS Yuasa International Ltd.Inventors: Syun Ito, Shogo Tsuruta, Seiichi Irie
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Patent number: 9093684Abstract: Disclosed herein is a secondary battery having a jelly roll type electrode assembly (‘jelly roll’) of a cathode/separator/anode structure mounted in a battery container, wherein a seal tape is attached to an outer side of the jelly roll including a wound end of the jelly roll, and the seal tape reacts with an electrolyte with the result that the seal tape is gelled.Type: GrantFiled: July 30, 2013Date of Patent: July 28, 2015Assignee: LG CHEM, LTD.Inventors: Young Wook Kim, Dong-Myung Kim, Dong Sub Lee, Dae Sung Kim
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Patent number: 9067078Abstract: A method of manufacturing an energy storage device for a medical device that includes creating an aperture in a case. The aperture includes an inner surface. The method also includes introducing an electrolyte into the case through the aperture and moving a sealing member into the aperture. The sealing member includes an outer surface. Furthermore, the method includes sealing the aperture only with the sealing member and creating a substantially hermetic seal between the inner surface of the aperture and the outer surface of the sealing member.Type: GrantFiled: May 29, 2009Date of Patent: June 30, 2015Assignee: Medtronic, Inc.Inventors: Doug Morelli, Bernard Frank Heller, Jr.
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Patent number: 9070938Abstract: A terminal lead 1 includes an inner end portion 1a to be arranged inwardly of an exterior casing 9 which accommodates an electrochemistry element 6, an outer end portion 1b to be arranged outwardly of the exterior casing 9, and a plate-shaped metallic substrate 2 as a base material. An insulating resin film 4 is arranged at a portion of the terminal lead 1 corresponding to a seal portion 9x of the exterior casing 9. In this terminal lead 1, a surface coating layer 3 is formed on both surfaces 2p and 2p of the metallic substrate 2 in a thickness direction thereof. A coated amount of both widthwise end portions 3a and 3a of the surface coating layer 3 formed on both surfaces 2p and 2p of the metallic substrate 2 in the thickness direction is less than that a widthwise intermediate portion 3b thereof.Type: GrantFiled: December 21, 2012Date of Patent: June 30, 2015Assignee: Showa Denko Packaging Co., Ltd.Inventors: Daisuke Hashimoto, Takurou Watanabe, Keiichi Yokoi, Hiroshi Hata
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Patent number: 9070927Abstract: An exterior member for a battery element includes: a first sheet piece made of a laminated sheet; a second sheet piece made of a laminated sheet; a bending part for partitioning the first sheet piece and the second sheet piece from each other; a sealing part which is formed by a peripheral part of the first sheet piece and a peripheral part of the second sheet piece corresponding to the peripheral part of the first sheet piece and which hermetically seals a battery element; and a thick-walled part formed so as to include at least a part of the bending part.Type: GrantFiled: May 29, 2009Date of Patent: June 30, 2015Assignee: SONY CORPORATIONInventor: Toshio Koishikawa
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Patent number: 9065151Abstract: Disclosed herein is a battery cell manufacturing device configured to manufacture a battery cell including two or more unit cells. The battery cell manufacturing device includes a unit cell stacking unit into which unit cells are introduced from above and in which the unit cells are sequentially stacked, a wrapping unit to wrap an outside of the unit cell stack discharged from the unit cell stacking unit with a separation film, and a heating unit to thermally shrink the separation film wrapping the outside of the unit cell stack.Type: GrantFiled: May 17, 2013Date of Patent: June 23, 2015Assignee: LG CHEM, LTD.Inventors: Ki Hong Min, Jeong Sam Son, Sung Min Hwang, Jihoon Cho, Changmin Han, Han Sung Lee, Byeong Geun Kim, Jae Hoon You, Su Taek Jung, Hyun-sook Baik, Seok Joo Jung, Ki Hun Song, Sang Hyuck Park
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Patent number: 9054393Abstract: A secondary battery according to an embodiment includes a container having a pouring hole through which an electrolyte is poured, and housing the electrolyte, poured through the pouring hole, together with an electrode body; and a sealing lid fixed to the container and closing the pouring hole. The container has a plurality of grooves extending in parallel along the outer edge of the pouring hole, in a predetermined region that surrounds the periphery of the pouring hole, and the sealing lid is provided on the plurality of grooves in such a manner as to close the pouring hole and is fixed to the container.Type: GrantFiled: September 19, 2013Date of Patent: June 9, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Yoshitaka Kawada, Natsuki Toyota, Naotada Okada, Susumu Yahagi
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Patent number: 9048506Abstract: There are a secondary battery having a pouch-type outer casing and a manufacturing method thereof. In one embodiment, a secondary battery includes an electrode assembly and an outer casing. The electrode assembly has positive and negative electrode plates, a separator interposed therebetween, and positive and negative electrode tabs having one ends respectively connected to the positive and negative electrode plates. The outer casing accommodates the electrode assembly so that the other ends of the positive and negative electrode tabs are extracted from a first side to the exterior thereof. The outer casing has a sealing portion sealed at least twice. The sealing portion is primarily sealed to be fractured under a predetermined internal pressure of the outer casing. After the aging of a battery, the sealing portion is fractured under the predetermined internal pressure, thereby exhausting internal gas. After the exhaustion of the internal gas, the sealing portion is secondarily sealed.Type: GrantFiled: December 15, 2010Date of Patent: June 2, 2015Assignee: Samsung SDI Co., Ltd.Inventor: Hyo-Jung Song
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Publication number: 20150147640Abstract: A seal tape capable of preventing an electrode assembly from moving in a secondary battery, and a secondary battery using the same are disclosed. The seal tape for a secondary battery is attached to the outer surface of the electrode assembly which is received in a battery case, and includes a first adhesive layer having an adhesive surface adhered to the outer surface of the electrode assembly, a second adhesive layer having an adhesive surface at a side opposite to the adhesive surface of the first adhesive layer so as to adhere to an inner surface of the battery case, and a protective layer formed on the second adhesive layer, wherein the protective layer is entirely or partially removed by reating with an electrolyte of the secondary battery.Type: ApplicationFiled: February 2, 2015Publication date: May 28, 2015Applicant: LG CHEM, LTD.Inventors: Sung-Jong Kim, Cha-Hun Ku
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Publication number: 20150147638Abstract: To provide a battery pack less subject to vibration, shock, or the like and stable in characteristics. A battery pack includes a unit battery obtained by accommodating, in a casing film, a battery element in which positive and negative electrodes are stacked via separators, the unit battery having a sealing portion obtained by sealing opposing synthetic resin layers formed on inner surface of the casing film; and a lithium ion secondary battery stacked body obtained by stacking a plurality of the unit batteries and winding a fixing tape therearound. A sealing surface of the sealing portion is substantially parallel to a unit battery stacking surface, and an end surface of the sealing portion is brought into contact with the fixing tape.Type: ApplicationFiled: June 24, 2013Publication date: May 28, 2015Applicant: NEC ENERGY DEVICES, LTD.Inventors: Hiroaki Tamura, Kazunori Maruoka
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Publication number: 20150147639Abstract: A packing includes a base part that is attached to a duct, and a seal lip part that extends from the base part toward a battery module to press against the battery module. A first bend portion is provided midway in the seal lip part. A second bend portion is provided in a continuous portion between the base part and the seal lip part. The first bend portion and the second bend portion are bent in a direction opposite to each other.Type: ApplicationFiled: November 24, 2014Publication date: May 28, 2015Inventors: Yoshitaka UCHIDA, Tetsuya SUGIZAKI, Tomohiro HIGAKI
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Publication number: 20150140418Abstract: A monoblock battery assembly including an electrode assembly having at least one positive electrode, at least one negative electrode, one or more insulative sheets between the at least one positive electrode and the at least one negative electrode, and an outermost insulative layer which substantially encases the at least one positive electrode, the at least one negative electrode, and the one or more insulative sheets. A housing having a cavity for receiving the electrode assembly is provided and a cover is sealingly attached to the housing. A bussing is electrically connected to the at least one positive electrode and the at least one negative electrode of the electrode assembly.Type: ApplicationFiled: November 14, 2014Publication date: May 21, 2015Applicant: SAFT GROUPE SAInventors: Michael C. Duffield, Matthew C. BLOSS, Bjorn MARLID
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Publication number: 20150140372Abstract: A hermetically-sealed battery including a case body made of a metal, power generation elements housed in the case body, and a lid plate made of a metal. The case has an opening. The lid plate is fitted into the opening of the case body. The lid plate has a periphery laser-welded together with the case body to hermetically seal the opening of the case body with the lid plate. The lid plate includes a frame piece integrally provided along the periphery of the lid plate so as to be perpendicular to a plane surface of the lid plate. The frame piece is pressed into the opening along an inner wall surface. Laser welding is performed along a boundary between the frame piece and the inner wall surface that are in pressure contact with each other.Type: ApplicationFiled: November 20, 2014Publication date: May 21, 2015Inventor: Haruhiko Kondo
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Publication number: 20150140419Abstract: A Lithium-Ion monoblock battery assembly including a housing having a cavity for receiving an electrode assembly. Also including a cover sealingly attached to the housing, and a bussing integrally molded with at least one of the housing and the cover.Type: ApplicationFiled: November 14, 2014Publication date: May 21, 2015Applicant: SAFT GROUPE SAInventors: Michael C. DUFFIELD, Daniel E. KELLEY, Gerard RIGOBERT, Alexandre BEUGNON
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Publication number: 20150132635Abstract: The positive electrode substrate exposed portions or the negative electrode substrate exposed portions, or both, of an electrode assembly is split into two groups, and therebetween is disposed an intermediate member made of a resin material and holding one or more connecting conductive members. Collector members for the substrate exposed portions split into two groups is electrically joined by a resistance welding method to the substrate exposed portions split into two groups, together with the connecting conductive member(s) of the intermediate member. The resin material portion of the intermediate member protrudes, in the extension direction of the substrate exposed portions split into two groups, beyond the ends of the substrate exposed portions split into two groups and the ends of the collector member to a prismatic outer can. This structure enables enhanced resistance between the substrate exposed portions and the collector member and curbs variation in the welding strength.Type: ApplicationFiled: January 16, 2015Publication date: May 14, 2015Applicant: SANYO ELECTRIC CO., LTD.Inventors: Takayuki Hattori, Takenori Kimura, Yasuhiro Yamauchi, Toshiyuki Nohma
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Publication number: 20150132636Abstract: A rechargeable battery capable of preventing rust generation at an opening side of a battery case. The rechargeable battery according to embodiments of the present invention includes: an electrode assembly; a case having an opening and accommodating the electrode assembly; and a cap assembly electrically connected to the electrode assembly, and coupled to an opening side of the case with a gasket interposed therebetween, wherein the opening side of the case includes a trimming end, a gap proximate the trimming end, and a coating layer on an inner surface of the gap proximate the trimming end.Type: ApplicationFiled: September 25, 2014Publication date: May 14, 2015Inventors: Jae-Il Seong, Hideaki Yoshio, Ji-Won Yun
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Patent number: 9028997Abstract: The present application provides for ceramic collars and metal rings for active brazing in sodium-based thermal batteries. The ceramic collar may be an alpha-alumina collar configured for active brazing, and thereby sealing, to outer and inner Ni rings for use in NaMx cells. The portions of the alpha-alumina collar active brazed to the outer and inner Ni rings may be outwardly facing and include inwardly extending recesses. The portions of the outer and inner Ni rings active brazed to the outwardly facing portions of the collar may be inwardly facing. The alpha-alumina collar may include a greater coefficient of thermal expansion than each of the outer and inner Ni rings, and the alpha-alumina collar and outer and inner Ni rings may be configured such that a portion of the outer and inner Ni rings is deformed into the inwardly extending recesses of the alpha-alumina collar after active brazing thereof.Type: GrantFiled: December 28, 2012Date of Patent: May 12, 2015Assignee: General Electric CompanyInventors: Michael Colan Moscinski, Reza Sarrafi-Nour, Badri Narayan Ramamurthi, Mohandas Nayak, Darren Michael Stohr, Sundeep Kumar, Mohamed Rahmane, Arunabh Basak, Raghavendra Rao Adharapurapu
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Patent number: 9029012Abstract: An electrochemical device is claimed and disclosed, including a method of manufacturing the same, comprising an environmentally sensitive material, such as, for example, a lithium anode; and a plurality of alternating thin metallic and ceramic, blocking sub-layers. The multiple metallic and ceramic, blocking sub-layers encapsulate the environmentally sensitive material. The device may include a stress modulating layer, such as for example, a Lipon layer between the environmentally sensitive material and the encapsulation layer.Type: GrantFiled: July 29, 2013Date of Patent: May 12, 2015Assignee: Sapurast Research LLCInventors: Bernd J. Neudecker, Shawn W. Snyder
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Patent number: 9027242Abstract: A method of manufacturing an electrical device comprises the steps of providing a substrate, providing an electrical component on the substrate, providing a first electrical contact on the substrate that is electrically connected to the electrical component, and providing an electrochemical cell on or integrating the substrate for providing electrical energy to said electrical component. The electrochemical cell comprises at least one electrochemical layer comprising a cured or dried ink and a first electrode contact electrically connected to said at least one electrochemical layer. The method further includes the step of securing the electrochemical cell to the substrate through an electrically conductive connection that provides both a structural connection and an electrical connection between the first electrical contact and the first electrode contact.Type: GrantFiled: September 24, 2012Date of Patent: May 12, 2015Assignee: Blue Spark Technologies, Inc.Inventor: Gary R. Tucholski
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Patent number: 9017852Abstract: A secondary battery includes an electrode assembly including a pair of electrodes separated from each other by a separator, a battery case including a front portion bonded to a back portion to produce wing portions at opposite edges of the battery case, the electrode assembly being arranged within an accommodating portion of the battery case, the accommodating portion being arranged between the wing portions, an insulating member arranged at each of said wing portions of the battery case and a bonding portion arranged at each of said wing portions to attach said wing portions to the accommodating portion of the battery case. The bonding portion may be a double sided tape and may be integrally provided with the insulating member to simplify manufacturing process thereof.Type: GrantFiled: February 20, 2013Date of Patent: April 28, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Ki-Sik Pak, Ki-Sung Hong
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Patent number: 9012070Abstract: A secondary battery including an electrode assembly; a pouch case accommodating the electrode assembly and including an unsealed part and a sealed part at a wing portion of the pouch case; and an electrode tab including a first side electrically connected to the electrode assembly, and a second side drawn out from the pouch case through the wing portion, and the unsealed part includes a first unsealed part at an outer periphery of the wing portion which is directed toward the second side of the electrode tab, and a second unsealed part at an inner periphery of the wing portion which is directed toward the electrode assembly, and the sealed part is between the first unsealed part and the second unsealed part.Type: GrantFiled: May 22, 2012Date of Patent: April 21, 2015Assignee: Samsung SDI Co., Ltd.Inventor: Hoseong Kim
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Publication number: 20150104684Abstract: Provided are a finishing tape, which can prevent a short circuit while preventing impacts applied to an electrode assembly, and a secondary battery including the same. The secondary battery includes a case having an opening defining an internal space, an electrode assembly in the internal space of the case, and a cap assembly coupled to the opening of the case sealing the case. The electrode assembly may include a finishing tape on an outer surface of the electrode assembly between the case and the electrode assembly. The finishing tape may include a first substrate and a second substrate. The cap assembly may include a cap plate coupled to the opening of the case. The secondary battery may further include an insulation case between the electrode assembly and the cap assembly.Type: ApplicationFiled: February 3, 2014Publication date: April 16, 2015Applicant: SAMSUNG SDI CO., LTD.Inventors: Daekyu Kim, Jieun Cho
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Publication number: 20150104700Abstract: Provided is a technique for suppressing welding faults caused in sealing a case of a sealed battery by laser welding. A step for manufacturing a sealed battery having a case sealed by a sealing plug and a sealing plate, which includes a sealing step for fitting the sealing plug into a pouring hole formed in a recess of a lid portion and inserting the sealing plate into the recess, and a welding step for joining the sealing plate to the recess by laser welding. In the sealing step, a heat-insulating member is provided in a minute space defined by the recess, the sealing plug and the sealing plate so as to block at least a part of the boundary portion between the sealing plate and the recess. In the welding step, welding is completed at a position where the heat-insulating member is present in the boundary portion.Type: ApplicationFiled: March 8, 2012Publication date: April 16, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junta Takasu, Takashi Harayama, Kazuyuki Kusama
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Patent number: 9005805Abstract: Disclosed herein is a plate-shaped secondary battery configured to have a structure in which an electrode assembly of a cathode/separator/anode structure is mounted in a battery case in a sealed state by thermal welding, wherein a protuberance is formed at an outer edge sealed portion of an electrode assembly receiving part of the battery case such that the protuberance protrudes upward and downward from the sealed portion, and the protuberance extends along the outer edge of the electrode assembly receiving part continuously in a curved line or in a straight line in a state in which the protuberance is adjacent to the electrode assembly receiving part.Type: GrantFiled: August 11, 2011Date of Patent: April 14, 2015Assignee: LG Chem, Ltd.Inventors: WonChan Park, Min Su Kim, Ye Hoon Im, Seung Jae You, Woo Yong Lee
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Patent number: 8999567Abstract: A lithium polymer battery comprising an internal sheath, reinforcement members, and an external sheath and a method for manufacturing the same are provided. The lithium polymer battery comprises a pouch-type internal sheath with an electrode assembly positioned therein and a protective circuit module that is attached to the surface thereof to control the charging and discharging processes of the electrode assembly. The battery further comprises reinforcement members that couple with surfaces of the internal sheath and an external sheath for integrally enclosing the internal sheath and the reinforcement members. The external sheath may comprise a tube, a thermally contractible tube, or a melted resin.Type: GrantFiled: April 15, 2011Date of Patent: April 7, 2015Assignee: Samsung SDI Co., Ltd.Inventor: Hyung Bok Lee
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Patent number: 8999564Abstract: Disclosed is a secondary battery. The secondary battery includes an electrode assembly including a first plate, a second plate, and a separator disposed between the first and second plates, a battery case accommodating the electrode assembly and an electrolyte, a cap assembly sealing an opening formed on one side of the battery case, and a gasket disposed between the cap assembly and the battery case. The battery case includes a crimping part formed on an upper portion of the battery case, and the crimping part is disposed on the gasket. A ratio of a second thickness of the gasket to a first thickness of the gasket is greater than 1.8 and is less than 4.8. The first thickness is a length between an internal surface of the battery case and an outermost edge of the cap assembly, and the second thickness is a length between the internal surface of the battery case and an outermost tip of the crimping part.Type: GrantFiled: April 8, 2011Date of Patent: April 7, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Ik-Kyu Kim, Seok-Joon Yoon
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Patent number: 8999538Abstract: A battery module having sealed vent chamber includes a plurality of electrochemical cells each having a vent at an end thereof. The module also includes a structure defining a chamber and comprising a plurality of sockets, each socket configured to receive one of the plurality of electrochemical cells such that the vents of the electrochemical cells are located in the chamber. The module further includes a seal provided between at least one of the electrochemical cells and its associated socket. At least a portion of the seal is deformable such that gases released from the electrochemical cells into the chamber compress the deformable portion of the seal against the electrochemical cells to seal the gases in the chamber.Type: GrantFiled: August 13, 2009Date of Patent: April 7, 2015Assignee: Johnson Controls—SAFT Advanced Power Solutions LLCInventors: Jason D. Fuhr, Dale Trester, Gary Houchin-Miller, Chris Bonin, Anthony C. Pacheco
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Publication number: 20150089799Abstract: Provided are a secondary battery case and a method for manufacturing a secondary battery. The secondary battery case includes a can accommodating an electrode assembly and a top cap sealing an upper opening of the can. The top cap includes a top plate sealing the upper opening of the can, a filling hole passing through the top plate to fill an electrolyte into the can, and a protrusion protruding from the top plate on an upper portion of the filling hole. The protrusion is press-fitted into the filling hole to seal the filling hole. According to the present invention, the protrusion may protrude from the top plate. Thus, the protrusion may be press-fitted into the filling hole and thus broken to seal the filling hole. Therefore, the member for sealing the filling hole may be integrated with the top plate to reduce manufacturing costs and simplify a manufacturing process.Type: ApplicationFiled: May 21, 2014Publication date: April 2, 2015Applicant: LG CHEM, LTD.Inventors: Sin Young PARK, Jeoung Soo KIM, Dong Sub LEE, Sang Bong NAM, Hang Seob YOON, Hyang Mok LEE, Dong Hee SEO, Hyun Kyung KO, Sang Jin WOO
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Publication number: 20150093629Abstract: An electrochemical device comprises one or more anode, cathode, and separator. In some embodiments, the separator is also an electrolyte. In addition it has two or more current collectors. The anode and cathode are between the two current collectors and each is adhered to an adjacent current collector. The separator is between the anode and cathode and adhered to the anode and cathode. The current collectors are a barrier, and are bonded together to create a sealed container for the anode, cathode, and separator. The electrochemical device may be integrated into a composite panel suitable for uses such as structural load bearing panels or sheets for aircraft wings or fuselage, composite armor, torpedo, missile body, consumer electronics, etc. The electrochemical device may include, but is not limited to, energy storage (batteries, supercapacitors), and energy generation (fuel cells).Type: ApplicationFiled: May 8, 2013Publication date: April 2, 2015Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Jay Sayre, Steven Risser, Andrew James Manning
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Publication number: 20150086818Abstract: Provided is an electric storage apparatus capable of preventing a decrease in its performance for cooling electric storage devices. An electric storage apparatus includes an electric storage device, an end holder adjacent to the electric storage device, a frame sandwiching the electric storage device and the end holder, and a seal member arranged between the frame and the end holder.Type: ApplicationFiled: September 24, 2014Publication date: March 26, 2015Inventors: Yosuke NISHIMURA, Jun MACHIDA, Sunao TERAGUCHI
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Patent number: 8986860Abstract: A subgasket for a fuel cell is provided. The subgasket includes a barrier layer having an elongate primary seal formed thereon. The seal has at least one inwardly extending baffle adapted to militate against a reactant bypass flow in the fuel cell. A fuel cell and fuel cell stack having the subgasket are also provided.Type: GrantFiled: April 22, 2008Date of Patent: March 24, 2015Assignee: GM Global Technology Operations LLCInventors: Saurabh Vyas, Jeffrey A. Rock, Eric J. Connor, Daniel P. Miller
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Patent number: 8986879Abstract: A pouch type rechargeable battery that comprises an electrode assembly comprising a first electrode, a second electrode, and a separator interposed between the first and second electrodes is disclosed. The battery further comprises a pouch case comprising a case cover and a case body that is formed with a space for receiving the electrode assembly therein and a sealing part that is formed around the space. The sealing part comprises side sealing sections where the width of each side sealing section is less than the depth of the space.Type: GrantFiled: September 30, 2005Date of Patent: March 24, 2015Assignee: Samsung SDI Co., Ltd.Inventor: Hyung Bok Lee
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Patent number: 8980468Abstract: A current interruption mechanism for prismatic secondary battery includes a tubular conductive member electrically connected to a positive electrode external terminal, an inversion plate, and a positive electrode collector connected to the inversion plate. The positive electrode collector has a first region that is parallel to a sealing body and a second region that is connected to a positive electrode plate. The boundaries between the first and second regions are disposed further outward than the inner surface of the tubular conductive member, and at least one of the edge portions, other than the boundaries between the first region and second region, is located further outward than the inner surface of the tubular portion of the conductive member. The current interruption mechanism is unlikely to be damaged even if the battery is subjected to shock due to vibration, falling, etc.Type: GrantFiled: January 25, 2013Date of Patent: March 17, 2015Assignees: SANYO Electric Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Yoshinori Yokoyama, Takayuki Hattori, Yasuhiro Yamauchi, Toshiyuki Nohma, Hironori Harada, Toshihiro Takada, Hiroshi Inukai
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Patent number: 8980469Abstract: A high-reliability prismatic secondary battery with a current interruption mechanism that is unlikely to be damaged even if the battery is subjected to shock is provided. The prismatic secondary battery includes a second insulating member having a first through-hole, the second insulating member being arranged between a first region of a positive electrode collector and an inversion plate. The first region of the positive electrode collector and the inversion plate are electrically connected to each other through the first through-hole. The second insulating member has a plurality of fixing pawl portions. The fixing pawl portions are hooked and fixed to a fixing portion formed on the outer surface side of the conductive member.Type: GrantFiled: January 25, 2013Date of Patent: March 17, 2015Assignees: SANYO Electric Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Eiji Okutani, Yoshinori Yokoyama, Yasuhiro Yamauchi, Toshiyuki Nohma, Hironori Harada, Toshihiro Takada, Hiroshi Inukai, Akira Kiyama, Ryuta Morishima
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Publication number: 20150072223Abstract: A battery cell for an electronic device, and an electronic device, the battery cell including an electrode assembly; an outer case accommodating the electrode assembly, the outer case including first and second outer cases that contact each other along edges thereof, wherein the first and second outer cases include a body portion that includes a space for accommodating the electrode assembly therein, and a wing portion on at least a part of an outer circumference of the body portion, the wing portion including at least one through-hole therein; an insulating film is folded along a length direction of the wing portion to surround the wing portion, the insulating film including a hole at a position overlying the at least one through-hole of the wing portion; and a plate-shaped ring-type insulating member around a circumference of the at least one through-hole.Type: ApplicationFiled: September 11, 2014Publication date: March 12, 2015Inventor: Sung-Ho HONG
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Patent number: 8974952Abstract: A rechargeable battery is disclosed.Type: GrantFiled: August 20, 2010Date of Patent: March 10, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Jun-Sik Kim, Po-Jung Hwang, Seung-Jae Lee, Yoo-Myung Kang, Sung-Soo Kim
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Patent number: 8974955Abstract: Disclosed is a method for manufacturing a battery cell including an electrode assembly and electrolyte provided in a battery case composed of a laminate sheet having a resin layer and a metal layer, which includes; (a) thermally fusing and sealing the periphery of the case except for an end part thereof while the electrode assembly is mounted in the case; (b) introducing the electrolyte through the unsealed end part then sealing the same by thermal fusion; (c) charging and discharging the battery cell to activate the same; (d) puncturing the unsealed part inside the end part to form a through-hole communicating with the inside of the case; and (e) pulling top and bottom faces of the battery case in the opposite direction to each other at the unsealed part to open the same while applying vacuum pressure, to thereby remove the gas generated during activation as well as excess electrolyte.Type: GrantFiled: May 1, 2013Date of Patent: March 10, 2015Assignee: LG Chem, Ltd.Inventors: Ki Hong Min, Sung Min Hwang, Jihoon Cho, TaeYoon Jung, Changmin Han, Hyun-sook Baik, Jeong Sam Son, Jae Hoon You, Su Taek Jung, Hyeong Kim, Sung Hyun Kim, Ki Hun Song, Sang Hyuck Park, Han Sung Lee, Byeong Geun Kim
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Publication number: 20150064550Abstract: An object of the present invention is to provide a prismatic secondary cell 1 having a structure that makes it easy to inject an electrolytic solution into a cell can 2 and seal the cell can. The prismatic secondary cell 1 is configured so that an electrode group 4 is housed in the cell can 2 and that an opening 2a in the cell can 2 is sealed with a cell lid 3. The prismatic secondary cell 1 includes a solution injection section 7 and a plug section 8. The solution injection section 7 has a plurality of through-holes 21, 22 that penetrate the cell lid 3 and are positioned adjacent to each other. The plug section 8 is attached to the solution injection section 7 to integrally seal the through-holes 21, 22.Type: ApplicationFiled: February 22, 2012Publication date: March 5, 2015Inventors: Tatsuhiko Kawasaki, Nobuyuki Hori