Having Inorganic Binder Or Conductive Filler Patents (Class 429/232)
  • Patent number: 11063295
    Abstract: To provide a structure which allows production of an electrode, even if the film thickness of an electrode is increased; and a non-aqueous electrolyte secondary battery using the same.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: July 13, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhiko Ohsawa, Yuki Kusachi, Hiroshi Akama, Hideaki Horie, Yusuke Mizuno, Kenichi Kawakita, Yasuhiro Shindo, Yasuhiro Tsudo
  • Patent number: 11056678
    Abstract: An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor: thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative electrode active material layer which is over the negative electrode current collector and includes a plurality of particles of a negative electrode active material, and a film covering part of the negative electrode active material. The film has an insulating property and lithium ion conductivity.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: July 6, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Nobuhiro Inoue, Sachiko Kataniwa, Kazutaka Kuriki, Junpei Momo
  • Patent number: 11031644
    Abstract: The present technology provides a battery that includes an air cathode, an anode, an aqueous electrolyte that includes an amphoteric surfactant, and a housing that includes one or more air access ports defining a total area of void space (“vent area”), where (1) the battery is a size 13 metal-air battery and the total vent area defined by all of the air access ports is from about 0.050 mm2 to about 0.115 mm2; or (2) the battery is a size 312 metal-air battery and the total vent area defined by all of the air access ports is from about 0.03 mm2 to about 0.08 mm2.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: June 8, 2021
    Assignee: ENERGIZER BRANDS, LLC
    Inventors: Ian Pozdol, Marc Syvertsen, Tony Rubsam, Kokkie Schnetz
  • Patent number: 11031594
    Abstract: A positive active material for a rechargeable lithium battery, and a rechargeable lithium battery and a battery module including the same are provided. The positive active material may include a lithium nickel-manganese-cobalt composite oxide with a coating layer on the surface. The coating layer on the surface may include a lithium oxide including Al and/or W, for example, Al and W.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: June 8, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Youngjoo Chae, Kitae Kim, Young-Ki Kim, Jungjoon Park, Dong-Hwan Yu, Soonrewl Lee, Hyerim Lee, Ickkyu Choi, Soonkie Hong, Kisoo Lee
  • Patent number: 11024850
    Abstract: A lithium-ion battery includes a cathode comprising a lithium compound and the cathode further includes solid additives based on metal nitrides and/or borates. The solid additives improve the capacity retention of the lithium-ion battery and extend the battery lifetime. The solid additives also reduce the growth in internal resistance of the lithium-ion battery that is known to occur as Li-ion batteries age. The solid additives help stabilize the lithium-ion chemistry to high cell potentials or temperatures.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 1, 2021
    Assignee: XILECTRIC, INC.
    Inventor: Steven E. Weiss
  • Patent number: 11018333
    Abstract: According to one embodiment, a plate or electrode for a lead-acid battery includes a grid of lead alloy material, a paste of active material applied to the grid of lead alloy material, and a nonwoven fiber mat disposed at least partially within the paste of active material. The nonwoven fiber mat includes a plurality of fibers, a binder material that couples the plurality of fibers together, and a conductive material disposed at least partially within the nonwoven fiber mat so as to contact the paste of active material. In some embodiments, the nonwoven fiber mat may have an electrical resistant of less than about 100,000 ohms per square to enable electron flow on a surface of the nonwoven fiber mat.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: May 25, 2021
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Patent number: 11005091
    Abstract: A novel composite electrode material and a method for manufacturing the same, a composite electrode containing said composite electrode material, and a Li-based battery comprising said composite electrode are disclosed. Herein, the composite electrode material of the present invention comprises: a core, wherein a material of the core is at least one selected from the group consisting of Sn, Sb, Si, Ge, C, and compounds thereof; and a carbon nanotube or a carbon fiber, wherein the carbon nanotube or the carbon fiber grows on a surface including a surface of the core.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 11, 2021
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Yon-Hua Tzeng, Wai-Leong Chen, Wei-Chih Huang
  • Patent number: 10991935
    Abstract: Described are structural electrode and structural batteries having high energy storage and high strength characteristics and methods of making the structural electrodes and structural batteries. The structural batteries provided can include a liquid electrolyte and carbon fiber-reinforced polymer electrodes comprising metallic tabs. The structural electrodes and structural batteries provided can be molded into a shape of a function component of a device such as ground vehicle or an aerial vehicle.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 27, 2021
    Assignee: The MITRE Corporation
    Inventors: Nicholas Hudak, Kurt Eisenbeiser
  • Patent number: 10978693
    Abstract: Provided in the present invention are a battery paste, a battery electrode plate, and a preparation method therefor, the battery electrode plate comprising a current collector and an electrode paste film attached to the current collector; the electrode paste film comprises an active substance, a conductive agent, a polymer binder, and fluorophosphate Compared to the prior art, by means of adjusting the components of the electrode paste film, prepared battery electrode plates of the present invention, particularly thick electrode plates, have excellent recycling performance and high rate charge and discharge performance; the preparation method is simple, easy to execute, and low cost, can incorporate existing production devices, and is suitable for use in industrial production; in addition, the battery electrode plate of the present invention contains fluorophosphate, which has a fire retardant effect and can improve the safety of lithium ion batteries MZ+[POxFy]Z??(I)
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 13, 2021
    Assignee: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY AND ENGINEERING, CHINESE ACADEMY OF SCIENCES
    Inventors: Hao Luo, Guanghua Yang, Zhaoping Liu
  • Patent number: 10957900
    Abstract: According to one embodiment, there is provided an active material. The active material includes secondary particles. The secondary particles include first primary particles and second primary particles. The first primary particles include an orthorhombic Na-containing niobium-titanium composite oxide. The second primary particles include at least one selected from the group consisting of a carbon black, a graphite, a titanium nitride, a titanium carbide, a lithium titanate having a spinel structure, a titanium dioxide having an anatase structure, and a titanium dioxide having a rutile structure.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: March 23, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keigo Hoshina, Yasuhiro Harada, Norio Takami
  • Patent number: 10950888
    Abstract: An electrode film of an all-solid-state battery, an all-solid-state battery, and an electrode of an all-solid-state battery, which are fabricated by a process that includes thermally consolidating an electrode film by sintering at a temperature that does not exceed a predetermined threshold of a lowest melting temperature between an anode material and an cathode material.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: March 16, 2021
    Assignee: l-TEN
    Inventors: Fabien Gaben, Cédric Weiss, Claire Sorriano
  • Patent number: 10934171
    Abstract: Disclosed is a functionalized graphene containing two or more amines having excellent electrical, thermal and mechanical properties by allowing good interfacial bonding force and uniform dispersion with a thermoplastic polymer, and a method for preparing the functional graphene. The functionalized graphene comprises a carbon material selected from the group consisting of graphene, reduced graphene, graphene oxide, and mixture thereof; and a monovalent amine group and a bivalent or higher amine group which are bonded to the carbon material.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 2, 2021
    Assignee: Dongjin Semichem Co., Ltd.
    Inventors: Sunchan Park, Hyeonseong Choe, Soo Yeon Lee, Seon Yeong Gong
  • Patent number: 10930925
    Abstract: The invention relates to formulations comprising: (i) a first active material; (ii) a second active material; and (iii) a metal-coordination complex, wherein the first active material and the second active material have at least one surface property which is different, one from the other. Such formulations are more homogenous than those formed without the metal-coordination complex and can be used to form composite materials, such as those forming part of a conductive interface, having advantageous properties and providing for improvement in functionality of the conductive interface.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: February 23, 2021
    Assignee: ANTEO TECHNOLOGIES PTY LTD
    Inventors: Chang-Yi Huang, Nobuyoshi Joe Maeji, Quansheng Song
  • Patent number: 10879535
    Abstract: A process for the facile prelithiation of silicon-containing materials for use in lithium ion batteries is disclosed. The process can include using a lithium additive comprising LiSt, Li2O—SiO2—TiO2—P2O5, LATP, LAGP, LLTO, LLZO, Li3N, LiBF4, Li2CO3, Li3PO4, lithium-enriched variations thereof, or combinations thereof. The resulting prelithiated materials demonstrate enhanced physicochemical properties providing for high target capacity and excellent cycle stability for the batteries prepared with the materials.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: December 29, 2020
    Assignee: North Carolina Agricultural and Technical State University
    Inventor: Sungjin Cho
  • Patent number: 10873075
    Abstract: A composite anode material including an active material including a core of silicon, silicon oxide, or combination thereof encased within a buffer layer including a polymeric material, and a shell encapsulating the active material. The shell may include graphene, graphene oxide, partially reduced graphene oxide, or combinations thereof.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: December 22, 2020
    Assignee: NANOGRAF CORPORATION
    Inventors: Seonbaek Ha, Cary M. Hayner, Joshua J. Lau, James McKinney, Francis Wang, Woo Hyun Chae
  • Patent number: 10804524
    Abstract: Manufacturing an electrode by forming an electrode structure on a grounded conductive substrate and applying a voltage across the electrode structure to generate an electric field through the electrode structure to arrange the dipolar particles within the electrode structure.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: October 13, 2020
    Assignee: The Curators of the University of Missouri
    Inventors: Jonghyun Park, Jie Li
  • Patent number: 10741842
    Abstract: A solid-state battery including a cathode, an anode, and a solid-state electrolyte layer including a solid-state electrolyte, wherein the solid-state electrolyte layer is disposed between the cathode and the anode, wherein the anode includes an anode active material, a first binder, and a second binder, the first binder is inactive to the solid-state electrolyte, the second binder has a tensile modulus greater than a tensile modulus of the first binder, and the second binder has a binding force which is greater than a binding force of the first binder.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: August 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Koji Hoshiba, Satoshi Fujiki, Takanobu Yamada, Yuichi Aihara
  • Patent number: 10693181
    Abstract: The present application provides an electrode and a lithium-ion battery. The electrode comprises: a current collector; a first active material layer comprising a first active material; and a second active material layer comprising a second active material; wherein the first active material layer is arranged between the current collector and the second active material layer. The first active material layer is formed on at least one surface of the current collector, and a ratio of an average particle size of the second active material to an average particle size of the first active material is from 1:1 to 40:1. The active material layer is used in the present application to ensure that the lithium-ion battery does not generate a short circuit when pressed by an external force, thereby ensuring the mechanical safety performance of the lithium-ion battery.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: June 23, 2020
    Assignee: Ningde Amperex Technology Limited
    Inventors: Chaowang Lin, Fan Yang, Yisong Su, Huawei Zhong, Changming Qu, Xiaozhen Zhang
  • Patent number: 10686186
    Abstract: (Problem to be Solved) The present application is to provide: a positive electrode material for producing a lithium-sulfur solid-state battery that does not experience degradation of battery performance from charging/discharging cycling, does not present the fire risk of liquid electrolytes, and thereby makes battery performance compatible with safety; an all-solid-state lithium-sulfur battery that uses the positive electrode material; and a production method. (Means for Solution) The present application relate to a lithium-sulfur solid-state battery positive electrode material that contains: sulfur; a conductive material; a binder; and an ionic liquid or a solvate ionic liquid, and an all-solid-state lithium-sulfur battery that includes: a positive electrode that comprises the positive electrode material; a negative electrode; and an oxide solid electrolyte.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: June 16, 2020
    Assignees: TOKYO ELECTRIC POWER COMPANY HOLDINGS, INCORPORATED, TOKYO METROPOLITAN UNIVERSITY
    Inventors: Hideo Michibata, Kiyoshi Kanamura, Mao Shoji
  • Patent number: 10686192
    Abstract: The present invention relates to a battery technology, and more particularly, to a current collector that may be widely used in secondary batteries and an electrode employing the same. The current collector according to an embodiment of the present invention includes a conductive substrate; and a conductive fiber layer, which is dispersed on the conductive substrate and comprises pores. The conductive fiber layer comprises a plurality of metal filaments and liner binders mixed with the plurality of metal filaments, and the conductive fiber layer is combined with the conductive substrate via the mixed linear binders.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: June 16, 2020
    Assignee: Jenax, Inc.
    Inventors: Chang Hyeon Kim, Min Gyu Choi, Lee Hyun Shin
  • Patent number: 10680291
    Abstract: The nonaqueous electrolyte battery inorganic particles according to the present invention include a metal element having a smaller electronegativity than manganese in a crystal structure, and comprise a laminar compound which has an interlayer distance of 0.40-2.0 nm or less and which has exchangeable cations other than hydrogen ions between the layers.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 9, 2020
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hiroyuki Saeki, Nobuhiro Ito, Yoshiyuki Ishii, Kunio Matsui
  • Patent number: 10611639
    Abstract: A method for manufacturing an active material, capable of improving the discharge capacity of a lithium ion secondary battery is provided. The method for manufacturing an active material according to the present invention includes a first step of heating a mixture solution including a lithium source, a phosphate source, a vanadium source, and water under pressure to generate a precursor in the mixture solution, and adjusting the pH of the mixture solution including the precursor to be 6 to 8; and a second step of heating the precursor at 425 to 650° C. after the first step to generate an active material.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: April 7, 2020
    Assignee: TDK CORPORATION
    Inventors: Atsushi Sano, Keitaro Otsuki, Tomohiko Kato, Akinobu Nojima, Akiji Higuchi
  • Patent number: 10537137
    Abstract: An aerosol delivery device is provided that includes a reservoir configured to retain an aerosol precursor composition, a heating element, and a power source connected to an electrical load that includes the heating element. The power source includes a rechargeable lithium-ion battery having a carbon-based anode, an electrochemically-active cathode, and a non-aqueous electrolyte in contact with the anode and the cathode, with the non-aqueous electrolyte including a lithium salt in a carbonate solvent or solvent mixture. The aerosol delivery device also includes a microprocessor configured to operate in an active mode in which the microprocessor is configured to direct power from the power source to the heating element and thereby control the heating element to activate and vaporize components of the aerosol precursor composition.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: January 21, 2020
    Assignee: RAI Strategic Holdings, Inc.
    Inventors: Rajesh Sur, Eric T. Hunt, Stephen B. Sears
  • Patent number: 10490812
    Abstract: A negative electrode for nonaqueous electrolyte secondary batteries is provided which includes SiOx and allows the cycle characteristics of batteries to be enhanced. A negative electrode according to an example embodiment includes a negative electrode current collector and a negative electrode mixture layer disposed on the current collector. The negative electrode mixture layer includes SiOx (0.5?x?1.5) particles having a carbon coating on a particle surface, carbonaceous active material particles, and a compound having at least one of a carboxyl group and a hydroxyl group and having an average number of etherifying agent moieties present per unit molecule of not more than 0.8. The carbon coating includes a first coating disposed on the surface of the SiOx and a second coating disposed on the first coating and including carbon having higher crystallinity than the carbon forming the first coating.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: November 26, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Mai Yokoi, Yasunobu Iwami, Taizou Sunano
  • Patent number: 10490358
    Abstract: The present application is generally directed towards electrochemical energy storage devices. The devices comprise electrode material suspended in an appropriate electrolyte. Such devices are capable of achieving economical $/kWh (cycle) values and will enable much higher power and cycle life than currently used devices.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: November 26, 2019
    Assignee: BASF SE
    Inventors: Aaron M. Feaver, Richard D. Varjian, Chad Goodwin
  • Patent number: 10476063
    Abstract: Provided as a nonaqueous electrolyte secondary battery insulating porous layer that allows a nonaqueous electrolyte secondary battery to have an improved discharge output characteristic is a nonaqueous electrolyte secondary battery insulating porous layer containing fine particles of a metal salt having a Lewis acid peak area within a range of not less than 0.2 g?1 and not more than 3.6 g?1 per unit weight, the Lewis acid peak area being measured by an infrared spectroscopy-based acid nature evaluation method for a solid surface, the Lewis acid peak area of a metal salt per unit weight being defined as a value resulting from dividing (i) the area of a peak present in a region of 1447 cm?1 to 1460 cm?1 of an infrared absorption spectrum measured of a sample on which pyridine was adsorbed and from which the pyridine has then been desorbed by (ii) the weight of the metal salt.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: November 12, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ichiro Arise, Chikara Murakami
  • Patent number: 10468678
    Abstract: Process for making a particulate material of general formula (I), wherein the integers are defined as follows: M is selected from Al and Ti, x is in the range of from 0.015 to 0.03, a is in the range of from 0.3 to 0.6, b is in the range of from 0.05 to 0.35, c is in the range of from 0.2 to 0.5, d is in the range of from 0.001 to 0.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 5, 2019
    Assignee: BASF SE
    Inventors: Aleksei Volkov, Jordan Lampert, Thomas Michael Ryll, Ji-Yong Shin, Markus Hoelzle, Michael Eder
  • Patent number: 10450657
    Abstract: The present invention pertains to an electrode-forming composition comprising: (a) at least one fluoropolymer [polymer (F)]; (b) particles of at least one active electrode material [particles (P)], said particles (P) comprising: —a core comprising at least one active electrode compound [compound (NMC)] of formula (I): Li[Lix(ApBQCw)1-x]O2??(I) wherein A, B and C, different from each other, are selected from the group consisting of Fe, Ni, Mn and Co, x is comprised between 0 and 0.3, P is comprised between 0.2 and 0.8, preferably between 0.2 and 0.5, more preferably between 0.2 and 0.4, Q is comprised between 0.1 and 0.4, and W is comprised between 0.1 and 0.4, and —an outer layer consisting of a metal compound [compound (M)] different from Lithium, said outer layer at least partially surrounding said core; and (c) a liquid medium [medium (L)].
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: October 22, 2019
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Paula Cojocaru, Francesco Maria Triulzi, Marco Apostolo, Maurizio Biso
  • Patent number: 10374222
    Abstract: Provided is an electrode material which leads to a lithium ion secondary battery that has high energy density. An electrode material for a lithium ion secondary battery of the present invention is characterized by containing: a coarse particle of a first active material that is able to act as a positive electrode active material or a negative electrode active material of a lithium ion secondary battery; and a particle of a composite composed of conductive carbon and a second active material attached to the conductive carbon that is able to act as an active material of the same electrode as the first active material. This electrode material for a lithium ion secondary battery is also characterized in that: a diameter of the coarse particle of the first active material is larger than a diameter of the particle of the composite; and the particle of the composite is filled in a gap formed between the particles of the first active material. A conductive agent can be additionally contained in the gap.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: August 6, 2019
    Assignee: NIPPON CHEMI-CON CORPORATION
    Inventors: Katsuhiko Naoi, Wako Naoi, Satoshi Kubota, Yoshihiro Minato, Shuichi Ishimoto, Kenji Tamamitsu
  • Patent number: 10367190
    Abstract: A cylindrical single-piece lithium-ion battery of 400 Ah includes: a cylindrical battery enclosure (1), a battery mandrel (3), a plurality of tabs (4), a wiring terminal (6), a positive and negative electrode cover (11); a positive electrode sheet, said battery positive electrode is composed of LiFePO4, conductive carbon-black, graphite, adhesive such as PVDF, and solvent such as NMP; a negative electrode sheet, the battery negative electrode is composed of lithium titanate, conductive carbon-black, graphite, adhesive such as PVDF, and solvent such as NMP. The cylindrical lithium-ion battery made by the invention has a capacity of 400 Ah which is the one reportedly having the largest capacity in the world presently.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: July 30, 2019
    Assignee: Tianjin University
    Inventors: Zhiyuan Tang, Lei Sun, Qi Wang, Guowei Ling
  • Patent number: 10361436
    Abstract: The present disclosure is directed to electrochemical cells having injection molded or 3D printed components, such as cathodes, anodes, and/or electrolytes, and methods for making such electrochemical cells. The cathodes, anodes, and/or electrolytes can be formed from a binder resin and various conductive and active materials, mixtures of which are injected into a mold under heat and pressure to form the components of the electrochemical cells. The cathode can include conductive metallic powder, flakes, ribbons, fibers, wires, and/or nanotubes. Further, electrochemical arrays can be formed from multiple electrochemical cells having injection molded or 3D printed components.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 23, 2019
    Inventors: Marc Jaker, Kim Jaker
  • Patent number: 10319987
    Abstract: An active material layer for an electrode of a lithium ion battery has a first active material comprising silicon-based particles, a second active material comprising graphite and conduits between the first active material and the second active material, the conduits being a conductive material and providing area for expansion of the first active material due to lithiation while maintaining contact between the first active material and the second active material.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: June 11, 2019
    Assignee: Nissan North America, Inc.
    Inventors: Nilesh Dale, Xiaoguang Hao
  • Patent number: 10290849
    Abstract: A laminated porous film, including: a porous layer containing a polyolefin; and a porous layer containing a heat-resistant material and provided on at least one surface of the porous layer containing the polyolefin, the laminated porous film satisfying Formula (I) below, 0.1136×?+0.0819×?+3.8034?4.40??(I), where ? is a value of a film resistance (?·cm2) of the laminated porous film, and ? is a value of a volume (cc/m2) of the heat-resistant material contained per 1 m2 of the porous layer containing the heat-resistant material.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: May 14, 2019
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kosuke Kurakane, Chikara Murakami, Takahiro Okugawa, Yutaka Suzuki, Tomoaki Ozeki
  • Patent number: 10290871
    Abstract: Improved high energy capacity designs for lithium ion batteries are described that take advantage of the properties of high specific capacity anode active compositions and high specific capacity cathode active compositions. In particular, specific electrode designs provide for achieving very high energy densities. Furthermore, the complex behavior of the active materials is used advantageously in a radical electrode balancing design that significantly reduced wasted electrode capacity in either electrode when cycling under realistic conditions of moderate to high discharge rates and/or over a reduced depth of discharge.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: May 14, 2019
    Assignee: Zenlabs Energy, Inc.
    Inventors: Charan Masarapu, Haixia Deng, Yongbong Han, Yogesh Kumar Anguchamy, Subramanian Venkatachalam, Sujeet Kumar, Herman A. Lopez
  • Patent number: 10283768
    Abstract: There is provided a positive electrode for nonaqueous electrolyte secondary batteries in which a decrease in the initial discharge voltage can be suppressed even when a positive electrode exposed to the air is used. The positive electrode for a nonaqueous electrolyte secondary battery according to an aspect of the present invention contains a lithium transition metal oxide constituted by a secondary particle formed by aggregation of primary particles. A rare-earth compound adheres to at least part of a surface of the secondary particle, and a compound containing lithium and boron adheres to at least part of the surface of the secondary particle and at least part of an interface between primary particles aggregated at the surface of the secondary particle.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 7, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takao Kokubu, Takeshi Ogasawara
  • Patent number: 10263239
    Abstract: A method for manufacturing an electrode sheet includes the steps of forming a granulated material by mixing an electrode active material, a cellulose derivative, a binder, and an aqueous solvent, and placing the granulated material in the form of a sheet on electrode current collector foil. The cellulose derivative is at least one selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl methylcellulose, and hydroxypropyl methylcellulose, and has 3.0 or more moles of substitution, which is an average number of hydroxy groups substituted per glucose unit.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: April 16, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya Umeyama, Naoyuki Wada
  • Patent number: 10147952
    Abstract: The present invention relates to an electrode binder composition including a high-molecular-weight poly(amic acid) having a weight-average molecular weight of 5,000 or more and 100,000 or less and a low-molecular-weight poly(amic acid) having a weight-average molecular weight of 100 or more and 2,000 or less, and the present invention can provide an electrode binder composition that leads to a secondary battery having a high capacity superior in the initial charge/discharge efficiency and the cycle characteristics.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: December 4, 2018
    Assignee: NEC Corporation
    Inventors: Tetsuya Kajita, Shin Serizawa
  • Patent number: 10135071
    Abstract: Disclosed herein are cathode formulations comprising a lithium ion-based electroactive material and a carbon black having a BET surface area ranging from 130 to 700 m2/g and a ratio of STSA/BET ranging from 0.5 to 1. Also disclosed are cathodes comprising the cathode formulations, electro-chemical cells comprising the cathodes, and methods of making the cathode formulations and cathodes.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: November 20, 2018
    Assignee: Cabot Corporation
    Inventors: Berislav Blizanac, Aurelien L. DuPasquier, Miodrag Oljaca
  • Patent number: 10090513
    Abstract: A method of forming a particulate material comprising silicon, the method comprising the step of reducing a particulate starting material comprising silica-containing particles having an aspect ratio of at least 3:1 and a smallest dimension of less than 15 microns, or reducing a particulate starting material comprising silica-containing particles comprising a plurality of elongate structural elements, each elongate structural element having an aspect ratio of at least 3:1 and a smallest dimension of less than 15 microns.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: October 2, 2018
    Assignee: Nexeon Limited
    Inventors: Leigh Canham, Christopher Michael Friend, William James Macklin, Scott Brown
  • Patent number: 10056605
    Abstract: Provided are a method of preparing a cathode active material including coating a surface of a lithium transition metal oxide with a lithium boron oxide by dry mixing the lithium transition metal oxide and a boron-containing compound and performing a heat treatment, and a cathode active material prepared thereby. A method of preparing a cathode active material according to an embodiment of the present invention may easily transform lithium impurities present in a lithium transition metal oxide into a structurally stable lithium boron oxide by performing a heat treatment near the melting point of a boron-containing compound. Also, a coating layer may be formed in which the lithium boron oxide is uniformly coated in an amount proportional to the used amount of the boron-containing compound even at a low heat treatment temperature.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: August 21, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Jin Oh, Ho Suk Shin, Jin Hyung Lim, Dong Hun Lee, Joo Hong Jin, Wang Mo Jung
  • Patent number: 10033045
    Abstract: A secondary-battery current collector comprising an aluminum foil and a film containing an ion-permeable compound and carbon fine particles formed thereon or a secondary-battery current collector comprising an aluminum foil, a film containing an ion-permeable compound and carbon fine particles formed thereon as the lower layer, and a film containing a binder, carbon fine particles and a cathodic electroactive material formed thereon as the upper layer, a production method of the same, and a secondary battery having the current collector are provided.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: July 24, 2018
    Assignee: SHOWDA DENKO K.K.
    Inventor: Masahiro Ohmori
  • Patent number: 10008748
    Abstract: An alkaline electrochemical cell having an anode including electrochemically active anode material, a cathode including electrochemically active cathode material, a separator between the anode and the cathode, and an electrolyte. The electrolyte includes a hydroxide dissolved in water. The separator in combination with the electrolyte has an initial area-specific resistance between about 100 mOhm-cm2 and about 220 mOhm-cm2.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: June 26, 2018
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Nikolai Nikolaevich Issaev, James Joseph Cervera, Michael Pozin
  • Patent number: 10008720
    Abstract: Disclosed is a method of preparing a positive electrode active material for lithium secondary batteries, the method including pre-activating at least one lithium transition metal oxide selected from compounds represented by Formula (1) below and modifying a surface of the pre-activated lithium transition metal oxide: (1?x)LiM?O2?yAy?xLi2MnO3?y?Ay???(1), wherein M? is MnaMb; M is at least one selected from the group consisting of Ni, Ti, Co, Al, Cu, Fe, Mg, B, Cr, Zr, Zn and Period II transition metals; A is at least one selected from the group consisting of anions such as PO4, BO3, CO3, F and NO3; 0<x<1; 0<y?0.02; 0<y??0.02; 0.5?a?1.0; 0?b?0.5; and a+b=1.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 26, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Won Jung Kim, Hoe Jin Hah, Je Young Kim
  • Patent number: 9985260
    Abstract: Disclosed is a method for manufacturing a separator. The method includes (S1) preparing a porous planar substrate having a plurality of pores, (S2) preparing a slurry containing inorganic particles dispersed therein and a polymer solution including a first binder polymer and a second binder polymer in a solvent, and coating the slurry on at least one surface of the porous substrate, (S3) spraying a non-solvent incapable of dissolving the second binder polymer on the slurry, and (S4) simultaneously removing the solvent and the non-solvent by drying. According to the method, a separator with good bindability to electrodes can be manufactured in an easy manner. In addition, problems associated with the separation of inorganic particles in the course of manufacturing an electrochemical device can be avoided.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: May 29, 2018
    Assignees: LG Chem, Ltd., TORAY INDUSTRIES, INC.
    Inventors: Joo-Sung Lee, Jang-Hyuk Hong, Jong-Hun Kim, Bo-Kyung Ryu
  • Patent number: 9954247
    Abstract: A cathode mixture, a non-aqueous electrolyte secondary battery, and manufacture method thereof are provided. The cathode mixture for a non-aqueous electrolyte secondary battery includes: a cathode active material having an olivine type crystal structure; and an inorganic oxide which does not contribute to charge and discharge. A particle diameter A of the cathode active material lies within a range from 0.1 ?m or more to 0.5 ?m or less. There is a relation of A>B between the particle diameter A of the cathode active material and a particle diameter B of the inorganic oxide.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: April 24, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takehiko Ishii, Mikio Watanabe
  • Patent number: 9893361
    Abstract: The present disclosure is directed to electrochemical cells having injection molded or 3D printed components, such as cathodes, anodes, and/or electrolytes, and methods for making such electrochemical cells. The cathodes, anodes, and/or electrolytes can be formed from a binder resin and various conductive and active materials, mixtures of which are injected into a mold under heat and pressure to form the components of the electrochemical cells. The cathode can include conductive metallic powder, flakes, ribbons, fibers, wires, and/or nanotubes. Further, electrochemical arrays can be formed from multiple electrochemical cells having injection molded or 3D printed components.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: February 13, 2018
    Inventors: Marc Jaker, Kim Jaker
  • Patent number: 9865876
    Abstract: An electrode material, an electrode, and a lithium ion battery in which it is possible to improve not only the amount of gas generated in the battery during charge and discharge but also the deterioration of battery components without reducing the charge and discharge capacity are provided. The electrode material is an electrode material including carbonaceous electrode active material complex particles which include a carbonaceous material on surfaces of electrode active material particles, in which an oxygen content rate in the carbonaceous material is 5.0% by mass or less, and a coating ratio of the carbonaceous material on the surfaces of the carbonaceous electrode active material complex particles is 60% or more.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: January 9, 2018
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Hiroyuki Mine, Takao Kitagawa
  • Patent number: 9865869
    Abstract: An electrode material for a lithium-ion secondary battery of the present invention includes particles which are made of LiFexMn1-w-x-y-zMgyCazAwPO4, have an orthorhombic crystal structure, and have a space group of Pmna, in which a mis-fit value [(1?(b2×c2)/(b1×c1))×100] of a bc plane which is computed from lattice constants b1 and c1 of the LiFexMn1-w-x-y-zMgyCazAwPO4 and lattice constants b2 and c2 of FexMn1-w-x-y-zMgyCazAwPO4 obtained by deintercalating Li from LiFexMn1-w-x-y-zMgyCazAwPO4 by means of an oxidation treatment using nitrosonium tetrafluoroborate in acetonitrile is 1.32% or more and 1.85% or less.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 9, 2018
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Satoru Oshitari, Masataka Oyama, Ryuuta Yamaya
  • Patent number: 9843046
    Abstract: The present disclosure is directed to electrochemical cells having injection molded or 3D printed components, such as cathodes, anodes, and/or electrolytes, and methods for making such electrochemical cells. The cathodes, anodes, and/or electrolytes can be formed from a binder resin and various conductive and active materials, mixtures of which are injected into a mold under heat and pressure to form the components of the electrochemical cells. The cathode can include conductive metallic powder, flakes, ribbons, fibers, wires, and/or nanotubes. Further, electrochemical arrays can be formed from multiple electrochemical cells having injection molded or 3D printed components.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: December 12, 2017
    Inventors: Marc Jaker, Kim Jaker
  • Patent number: 9812698
    Abstract: In a method for manufacturing a connecting contact for an electrode of an electrochemical store, the electrode having a first material, a contact element made of a second material is provided, the contact element having a section coated using the first material, and the coated section is electrically and mechanically connected to the electrode to manufacture the connecting contact.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: November 7, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Sonja Dudziak, Reiner Ramsayer, Jens Koenig, Michael Guyenot, Rico Bauer, Sebastian Fritz