Patents by Inventor Hideaki Yoshio
Hideaki Yoshio has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11217867Abstract: A manufacturing method for a secondary battery and a manufacturing apparatus for a secondary battery that are applicable to a secondary battery in which an electrolyte solution injection hole has a diameter of 1.5 mm or more are provided. The secondary battery includes a battery case including a cover plate provided with an electrolyte solution injection hole, and a sealing member sealing the electrolyte solution injection hole. The manufacturing method includes a preparing step and a press-fitting step. The preparing step is preparing a cell in which, after an electrolyte solution is injected to the battery case through the electrolyte solution injection hole, the sealing member is disposed on the electrolyte solution injection hole. The press-fitting step is press-fitting the sealing member into the electrolyte solution injection hole while applying press-fitting load and ultrasonic vibration with a frequency of 20 kHz or more in parallel to a press-fitting direction.Type: GrantFiled: December 27, 2019Date of Patent: January 4, 2022Assignees: J.E.T. CO., LTD., PRIMEARTH EV ENERGY CO., LTD.Inventors: Hiroyuki Nishimura, Shigeki Hashimoto, Hideaki Yoshio, Shigeki Saito, So Kudo, Yuji Yamasaki, Kunihiro Takaoka, Hidenori Tagomori
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Publication number: 20200212419Abstract: A manufacturing method for a secondary battery and a manufacturing apparatus for a secondary battery that are applicable to a secondary battery in which an electrolyte solution injection hole has a diameter of 1.5 mm or more are provided. The secondary battery includes a battery case including a cover plate provided with an electrolyte solution injection hole, and a sealing member sealing the electrolyte solution injection hole. The manufacturing method includes a preparing step and a press-fitting step. The preparing step is preparing a cell in which, after an electrolyte solution is injected to the battery case through the electrolyte solution injection hole, the sealing member is disposed on the electrolyte solution injection hole. The press-fitting step is press-fitting the sealing member into the electrolyte solution injection hole while applying press-fitting load and ultrasonic vibration with a frequency of 20 kHz or more in parallel to a press-fitting direction.Type: ApplicationFiled: December 27, 2019Publication date: July 2, 2020Inventors: Hiroyuki Nishimura, Shigeki Hashimoto, Hideaki Yoshio, Shigeki Saito, So Kudo, Yuji Yamasaki, Kunihiro Takaoka, Hidenori Tagomori
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Patent number: 10490782Abstract: 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: GrantFiled: September 25, 2014Date of Patent: November 26, 2019Assignee: Samsung SDI Co., Ltd.Inventors: Jae-Il Seong, Hideaki Yoshio, Ji-Won Yun
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Publication number: 20190217413Abstract: Provided is a battery production method including a first step of pressurizing a predetermined region of a plurality of mutually overlapping collector foils (14) exposed from an end of an electrode (12), thereby forming a compressed region (16) where spaces between adjacent collector foils (14) are reduced, and a second step of joining the plurality of collector foils (14) together in an inner region of the compressed region (16) by ultrasonic welding, thereby forming a joining region (18) where the plurality of collector foils (14) are integrated, and also provided is a battery production device, whereby the occurrence of a defect can be reduced.Type: ApplicationFiled: August 24, 2017Publication date: July 18, 2019Inventors: Masatoshi Yamashita, Manabu Ohtagaki, Shigeki Hashimoto, Hideaki Yoshio
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Patent number: 10147927Abstract: A secondary battery including: an electrode assembly; a case accommodating the electrode assembly; a cap assembly including a cap plate coupled to the case, and a bottom plate attached to a bottom surface of the cap plate; and an electrode terminal protruding from the cap assembly and electrically connected to the electrode assembly, and the bottom plate includes a terminal plate electrically connected to the electrode terminal, and an insulation film stacked on the terminal plate and electrically insulating the terminal plate and the cap plate from each other, the insulation film being integrally formed with the terminal plate.Type: GrantFiled: December 4, 2013Date of Patent: December 4, 2018Assignee: Samsung SDI Co., Ltd.Inventors: Jaeil Seong, Hideaki Yoshio, Jiwon Yun
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Patent number: 9722234Abstract: A secondary battery, which can improve safety during a longitudinal compression test by reinforcing strength of a cap plate, is provided. In one embodiment, the secondary battery includes an electrode assembly, a can accommodating the electrode assembly, and cap plate coupled to a top portion of the can and sealing the can, wherein a reinforcement unit is formed on at least one side of the cap plate.Type: GrantFiled: January 28, 2014Date of Patent: August 1, 2017Assignee: Samsung SDI Co., Ltd.Inventors: Jaeil Seong, Hideaki Yoshio, Jiwon Yun
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Patent number: 9583741Abstract: A secondary battery including an electrode assembly and a case accommodating the electrode assembly, the case including a bottom surface, a first pair of parallel sidewalls and a second pair of parallel sidewalls, connected with the bottom surface, and a corner portion formed by an intersection of each of the first pair of parallel sidewalls and the bottom surface, the corner portion having a first radius of curvature at a first region, and a second radius of curvature different from the first radius of curvature at a second region.Type: GrantFiled: October 21, 2013Date of Patent: February 28, 2017Assignee: Samsung SDI Co., Ltd.Inventors: Jaeil Seong, Hideaki Yoshio, Jiwon Yun
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Patent number: 9570731Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator located between the first electrode and the second electrode; a case accommodating the electrode assembly; a cap plate sealing an opening of the case; and an insulation case located between the cap plate and the electrode assembly, the insulation case having a base and a side wall protruding from the base, the side wall including avoiding portions formed thereon.Type: GrantFiled: May 15, 2014Date of Patent: February 14, 2017Assignee: Samsung SDI Co., Ltd.Inventors: Jae-Il Seong, Hideaki Yoshio, Ji-Won Yun, Kwang-Sik Seo
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Patent number: 9419252Abstract: A rechargeable battery case that prevents a short circuit of a cell by inducing bending of a case under a lateral/longitudinal compression condition in a specific manner. The rechargeable battery case includes an opening in the case through which an electrode assembly is inserted. A bottom portion is provided at an end of the case opposite to that of the opening. A front portion is connected to the bottom portion. A back portion is connected to the bottom portion and the front portion. A joint portion is arranged between the front, back and bottom portion. Further, a first area and a second area are disposed longitudinally in the front and back portions. The second area is on either side of the first area. The joint portion in the second area is thicker than the joint portion in the first area.Type: GrantFiled: December 29, 2011Date of Patent: August 16, 2016Assignee: Samsung SDI Co., Ltd.Inventors: Jae-Il Seong, Hideaki Yoshio, Kyung-Keun Lee, Jin-Wook Kim
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Patent number: 9209437Abstract: A secondary battery including a cap assembly, the cap assembly including a cap plate having an electrolyte injection hole. The electrolyte injection hole includes a tapered portion having a roughened surface. The secondary battery further includes a sealing member located in the electrolyte injection hole, to seal the electrolyte injection hole. The sealing member includes a cap and a resin coated on the cap.Type: GrantFiled: June 23, 2009Date of Patent: December 8, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Jae-Il Seong, Hideaki Yoshio, Jai-Hwan Joo, Jin-Wook Kim, Soon-Ki Woo
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Patent number: 9203074Abstract: Embodiments of a rechargeable battery include: an electrode assembly including first and second leads; a case for receiving the electrode assembly; a cap plate covering an opening of the case, connected to the first lead, and including a terminal hole; and an insulating terminal plate provided between the cap plate and the electrode assembly, connected to the second lead, and an electrode end installed in the terminal hole. The cap plate may include a protrusion oriented toward the electrode assembly. The terminal plate may include an extended unit extended to an external part of the protrusion with respect to the terminal hole and separated from the protrusion. The protrusion and the extended unit may be provided on a plane in parallel with the opening. A first distance between the terminal hole and the protrusion may be shorter than a second distance between the terminal hole and the extended unit.Type: GrantFiled: September 11, 2012Date of Patent: December 1, 2015Assignee: SAMSUNG SDI CO., LTD.Inventors: Jae-Il Seong, Hideaki Yoshio, Ki-Youn Jeon, Kyung-Kyun Lee, Ji-Wan Jeong
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Publication number: 20150171407Abstract: A rechargeable battery includes an electrode assembly including a first electrode, a second electrode, and a separator located between the first electrode and the second electrode; a case accommodating the electrode assembly; a cap plate sealing an opening of the case; and an insulation case located between the cap plate and the electrode assembly, the insulation case having a base and a side wall protruding from the base, the side wall including avoiding portions formed thereon.Type: ApplicationFiled: May 15, 2014Publication date: June 18, 2015Applicant: SAMSUNG SDI CO., LTD.Inventors: Jae-Il Seong, Hideaki Yoshio, Ji-Won Yun, Kwang-Sik Seo
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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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Publication number: 20150111068Abstract: A secondary battery, which can improve safety during a longitudinal compression test by reinforcing strength of a cap plate, is provided. In one embodiment, the secondary battery includes an electrode assembly, a can accommodating the electrode assembly, and cap plate coupled to a top portion of the can and sealing the can, wherein a reinforcement unit is formed on at least one side of the cap plate.Type: ApplicationFiled: January 28, 2014Publication date: April 23, 2015Applicant: Samsung SDI Co., Ltd.Inventors: Jaeil Seong, Hideaki Yoshio, Jiwon Yun
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Publication number: 20150086858Abstract: A rechargeable battery includes: an electrode assembly; an outer case to enclose the electrode assembly, where the outer case includes an opening; a cap plate to seal the opening of the outer case; an insulating case of a predetermined height installed within the outer case, the insulating case installed between the cap plate and the electrode assembly; and an electrode terminal installed on the cap plate and electrically connected to the electrode assembly, where the outer case includes an insulating portion formed on an inner surface of the opening thereof adjacent said insulating case, said insulating portion being electrically insulating, and said insulating portion located at an upper portion of the outer case and being shaped to prevent foreign substances from flowing from the external environment into the outer case.Type: ApplicationFiled: February 27, 2014Publication date: March 26, 2015Applicant: Samsung SDI Co., Ltd.Inventors: Jae-Il Seong, Hideaki Yoshio, Ji-Won Yun
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Publication number: 20150030915Abstract: A secondary battery including: an electrode assembly; a case accommodating the electrode assembly; a cap assembly including a cap plate coupled to the case, and a bottom plate attached to a bottom surface of the cap plate; and an electrode terminal protruding from the cap assembly and electrically connected to the electrode assembly, and the bottom plate includes a terminal plate electrically connected to the electrode terminal, and an insulation film stacked on the terminal plate and electrically insulating the terminal plate and the cap plate from each other, the insulation film being integrally formed with the terminal plate.Type: ApplicationFiled: December 4, 2013Publication date: January 29, 2015Applicant: SAMSUNG SDI CO., LTD.Inventors: Jaeil SEONG, Hideaki YOSHIO, Jiwon YUN
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Publication number: 20150010809Abstract: A secondary battery including an electrode assembly and a case accommodating the electrode assembly, the case including a bottom surface, a first pair of parallel sidewalls and a second pair of parallel sidewalls, connected with the bottom surface, and a corner portion formed by an intersection of each of the first pair of parallel sidewalls and the bottom surface, the corner portion having a first radius of curvature at a first region, and a second radius of curvature different from the first radius of curvature at a second region.Type: ApplicationFiled: October 21, 2013Publication date: January 8, 2015Applicant: SAMSUNG SDI CO., LTD.Inventors: Jaeil Seong, Hideaki Yoshio, Jiwon Yun
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Patent number: 8920954Abstract: A battery tray for storing a battery comprises: a battery storage unit comprising: a first side and a second side facing each other, and a third side and a fourth side facing each other, wherein the third and fourth sides have planar portions for accommodating a prismatic battery cell and round portions for accommodating a cylindrical battery cell; a first guiding unit extending from a lower portion of the third side to secure a first end of a prismatic battery cell; and a second guiding unit extending from a lower portion of the fourth side to secure a second end of a prismatic battery cell.Type: GrantFiled: December 17, 2010Date of Patent: December 30, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Jaeil Seong, Soonki Woo, Kiyuon Jeon, Sehan Kim, Hideaki Yoshio
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Publication number: 20130136962Abstract: Embodiments of a rechargeable battery include: an electrode assembly including first and second leads; a case for receiving the electrode assembly; a cap plate covering an opening of the case, connected to the first lead, and including a terminal hole; and an insulating terminal plate provided between the cap plate and the electrode assembly, connected to the second lead, and an electrode end installed in the terminal hole. The cap plate may include a protrusion oriented toward the electrode assembly. The terminal plate may include an extended unit extended to an external part of the protrusion with respect to the terminal hole and separated from the protrusion. The protrusion and the extended unit may be provided on a plane in parallel with the opening. A first distance between the terminal hole and the protrusion may be shorter than a second distance between the terminal hole and the extended unit.Type: ApplicationFiled: September 11, 2012Publication date: May 30, 2013Applicant: Samsung SDI Co., LtdInventors: Jae-Il Seong, Hideaki Yoshio, Ki-Youn Jeon, Kyung-Kyun Lee, Ji-Wan Jeong
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Publication number: 20130029211Abstract: A rechargeable battery that prevents an internal short circuit of a cell by inducing bending of a cap plate and a case at a predetermined location and in a predetermined direction under a longitudinal compression condition. The rechargeable battery includes a case having a front sidewall opposite a back sidewall, a bottom wall opposite an opening and joint portions connecting the bottom wall to each of the front and back sidewalls, an electrode assembly arranged within the case, a cap plate arranged within the opening of the case to seal within the electrode assembly, the cap plate including at least one bend inducing groove, a curvature of an inner curved surface of portions of the joint portions arranged within the center portion being greater than a curvature of an inner curved surface of portions of the joint portions arranged within the side portions.Type: ApplicationFiled: November 23, 2011Publication date: January 31, 2013Applicant: SAMSUNG SDI CO., LTD.Inventors: Jae-Il Seong, Hideaki Yoshio, Kyung-Keun Lee, Jin-Wook Kim, Ji-Wan Jeong