Cell With Protective Layer On Electrolyte Patents (Class 429/126)
  • Patent number: 11569530
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising functional thiophene compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from a thiophene compound.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: January 31, 2023
    Assignee: Enevate Corporation
    Inventors: Liwen Ji, Benjamin Yong Park, Younes Ansari, Giulia Canton
  • Patent number: 11380931
    Abstract: A composite electrode plate of increased robustness and with better electrical properties for incorporation in a battery cell includes a composite current collector, a positive active material layer, a negative active material layer, a first isolation layer, and a second isolation layer. The composite current collector is disposed between the positive active material layer and the negative active material layer. The first isolation layer connects to a surface of the positive active material layer away from the composite current collector. The second isolation layer connects to a surface of the negative active material layer away from the composite current collector.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: July 5, 2022
    Assignee: Ningde Amperex Technology Ltd.
    Inventors: Yi-Bo Zhang, Li Xiang, Bin Wang, Qiaoshu Hu
  • Patent number: 11367867
    Abstract: Provided are a positive electrode for a metal-sulfur battery, a method of manufacturing the same, and a metal-sulfur battery including the same. The positive electrode comprises a positive electrode active material layer including carbon material and sulfur-containing material. In the positive electrode active material layer, a region in which the sulfur-containing material is densified and a region in which the carbon material is densified are arranged separately. By providing a positive electrode capable of exhibiting a high utilization rate of sulfur, it is possible to provide a metal-sulfur battery having high capacity and stable life characteristics.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: June 21, 2022
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Yang Kook Sun, Jang Yeon Hwang
  • Patent number: 11233273
    Abstract: A method for manufacturing an electrochemical device includes a discharge pretreatment step, where, external electric power is applied to a battery to discharge the battery, before charging the battery for the first time to perform formation of the battery, in order to remove a byproduct layer on the surface of a negative electrode. The method including the discharge pretreatment step before the first charge of a battery can improve the cycle life of an electrochemical device.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: January 25, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jun-Hyeok Han, Kyoung-Ho Ahn, Sol-Ji Park, Chul-Haeng Lee
  • Patent number: 11201376
    Abstract: A separator for an electric battery includes a first solid electrolyte layer; a plastic separator film impregnated with a liquid or gel electrolyte; and a second solid electrolyte layer, the first and second electrolyte layers sealing the liquid or gel electrolyte in the plastic separator. Also disclosed is a separator where first and second electrolyte layers sealing a plastic separator film and have a porosity less than 5%. A method for manufacturing a separator, an electric battery and a vehicle are also provided.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: December 14, 2021
    Assignees: VOLKSWAGEN AG, AUDI AG, DR. ING. H.C.F. PORSCHE AG
    Inventors: Mirko Herrmann, Angela Speidel
  • Patent number: 11114690
    Abstract: Disclosed are a method of manufacturing a solid electrolyte, a solid electrolyte manufactured using the method, and an all-solid cell including the solid electrolyte. The method includes preparing an electrolyte admixture including a solid electrolyte precursor and a solvent, drying the electrolyte admixture and removing the solvent from the electrolyte admixture to form a dry electrolyte mixture, and heat-treating the dry electrolyte mixture to form a crystallized solid electrolyte.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: September 7, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Jun Jang, Pil Gun Oh, Hong Seok Min, Yong Sub Yoon, Sa Heum Kim, Ju Yeong Seong
  • Patent number: 10998583
    Abstract: A composite solid electrolyte where self-discharge at room temperature is fundamentally prevented by adding a molten salt powder, which is an electric insulator at room temperature, or applying a molten salt passivation layer. The composite solid electrolyte includes: molten salt powder particles having electrical insulating properties at room temperature; and solid electrolyte powder particles on which surfaces thereof the molten salt powder particles are combined.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: May 4, 2021
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Hae-Won Cheong, Min-U Kim, Sung-Ho Kang, Jang-Hyeon Cho
  • Patent number: 10749211
    Abstract: A solid electrolyte interface is grown on a silicon monoxide electrode in a battery cell, including by charging the battery cell up to a first voltage while the battery cell is uncompressed in order to partially grow the solid electrolyte interface. After partially growing the partial solid electrolyte interface, the battery cell is rested. After resting the battery cell, the battery cell is charged to a second, higher voltage while the battery cell is compressed in order to further grow the partially grown solid electrolyte interface. After the solid electrolyte interface is grown on the silicon monoxide electrode, the battery cell is charged for one or more cycles while the battery cell is compressed.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: August 18, 2020
    Assignee: WISK AERO LLC
    Inventors: Chen Li, Patrick K. Herring
  • Patent number: 10707464
    Abstract: A battery cell according to an exemplary aspect of the present disclosure includes, among other things, a can assembly, an electrode assembly housed inside the can assembly and a venting system including a vent port and at least one of a vent tube inside the can assembly or a spacer plate mounted between the vent port and the electrode assembly.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: July 7, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Joseph F. Freiman, Satish B. Chikkannanavar, Bhaskara Boddakayala
  • Patent number: 10511049
    Abstract: A highly-concentrated electrolyte system for an electrochemical cell is provided, along with methods of making the highly-concentrated electrolyte system. The electrolyte system includes a bound moiety having an ionization potential greater than an electron affinity and comprising one or more salts selected from the group consisting of: lithium bis(fluorosulfonyl)imide (LiFSI), sodium bis(fluorosulfonyl)imide (NaFSI), potassium bis(fluorosulfonyl)imide (KFSI), and combinations thereof bound to a solvent comprising dimethoxyethane (DME). The one or more salts have a concentration in the electrolyte system of greater than about 4M, and a molar ratio of the one or more salts to the dimethoxyethane (DME) is greater than or equal to about 1 to less than or equal to about 1.5. The one or more salts binds to the dimethoxyethane (DME) causing the electrolyte system to be substantially free of unbound dimethoxyethane (DME) and unbound bis(fluorosulfonyl)imide (FSI?).
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: December 17, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Li Yang, Mei Cai
  • Patent number: 10351675
    Abstract: The present disclosure relates to injectable compositions and methods of making injectable compositions of moisture curing siloxane polymers for forming accommodating intraocular lenses. In certain embodiments, the moisture curing siloxane polymers are comprised of an organosilicon compound and a hydrolytically sensitive siloxane moiety and have a specific gravity of greater than about 0.95, a number average molecular weight (Mn) greater than about 5,000 or about 20,000 and a weight average molecular weight (Mw) greater than about 20,000 or about 40,000. The disclosure includes accommodating intraocular lenses formed from moisture curing siloxane polymers and having a modulus of elasticity of less than about 6 kPa, less than 20% post-cure extractables, refractive index ranging from 1.4 to 1.5 and dioptric range of accommodation of 0D to 10D.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 16, 2019
    Assignee: Adventus Technology, Inc.
    Inventors: Jason Watling, Stephen Clarke, Kim-Anh Thi Nguyen, Tony Aitchison, Elda Markovic, Anton Blencowe, Chun Kit Lo
  • Patent number: 10283777
    Abstract: Provided is a secondary battery that includes an electrode active material including an organic compound represented by the following General Formula 1. Ar—(OH)n??<General Formula 1> In the General Formula 1, Ar denotes at least one selected from the group consisting of 1,1-binaphthalene, anthracene, triphenylene, tetraphenylene, and pyrene, and is optionally substituted with a substituent. The substituent of Ar is at least one selected from the group consisting of an OH group, a carbonyl group produced through oxidization of the OH group, an alkyl group containing 3 or less carbon atoms, a halogen atom, and an amino group. n denotes an integer in a range of from 2 through 8.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: May 7, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Masayoshi Nomura
  • Patent number: 9859558
    Abstract: A primary battery includes a cathode having an alkali-deficient nickel oxide including metals such as Ca, Mg, Al, Co, Y, Mn, and/or non-metals such as B, Si, Ge, or a combination of metal and/or non-metal atoms; a combination of metal atoms; an anode; a separator between the cathode and the anode; and an alkaline electrolyte.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: January 2, 2018
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Jennifer Anne Nelson, Paul Albert Christian, Kirakodu S. Nanjundaswamy, Fan Zhang
  • Patent number: 9765096
    Abstract: A method for preparation of an organohalosilane represented by formula I is disclosed. The method comprises: contacting an alcohol with metal sodium to yield a sodium alcoholate; contacting the sodium alcoholate with a halogen silane compound for an etherification reaction; and adding dropwise a fluorinating agent for a fluorination reaction. The organohalosilane is used for preparation of an electrolyte solution of a non-aqueous lithium ion battery.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: September 19, 2017
    Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES
    Inventors: Lingzhi Zhang, Hao Luo, Yongjin Mai
  • Patent number: 9627727
    Abstract: A lithium-air electrochemical cell is provided. The battery comprises: an anode compartment; a cathode compartment; and a lithium ion conductive membrane separating the anode compartment from the cathode compartment. The anode compartment comprises an anode having lithium or a lithium alloy as active metal and a lithium ion electrolyte, while the cathode compartment comprises an air electrode and an ionic liquid capable of supporting the reduction of oxygen. A lithium ion concentration in the cathode compartment is such that the lithium ion concentration is greatest at the lithium ion selective membrane and lowest at the cathode.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: April 18, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Kensuke Takechi, Fuminori Mizuno
  • Patent number: 9368775
    Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: June 14, 2016
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
  • Patent number: 9123941
    Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety of electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: September 1, 2015
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
  • Publication number: 20150140395
    Abstract: An electrolyte for a rechargeable lithium battery includes a lithium salt, a non-aqueous organic solvent, and an additive, where the additive includes a compound represented by Chemical Formula 1. A rechargeable lithium battery including the electrolyte includes a positive electrode including a positive active material, a negative electrode including a negative active material, and the electrolyte.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 21, 2015
    Inventors: Duck-Hyun Kim, Moon-Sung Kim, E-Rang Cho, Jeong-Hye Lee
  • Patent number: 9029023
    Abstract: Provided are a multi-layered structure electrolyte including a gel polymer electrolyte on opposite surfaces of a ceramic solid electrolyte, for a lithium ion secondary battery including positive and negative electrodes capable of intercalating/deintercalating lithium ions, and a lithium ion secondary battery including the electrode. The electrolyte includes a gel polymer electrolyte on opposite surfaces of a ceramic solid electrolyte.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: May 12, 2015
    Assignee: Samsung Fine Chemicals Co., Ltd
    Inventor: Shin Jung Choi
  • Patent number: 9023518
    Abstract: A battery includes an anode containing a lithium material, a cathode containing sulfur and a porous conducting medium, and an electrolyte, wherein the electrolyte contains an additive selected from the group consisting of an organic surfactant additive, an inorganic additive, and a mixture thereof. The organic surfactant additive may be a fluorosurfactant.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 5, 2015
    Assignee: Eaglepicher Technologies, LLC
    Inventors: Umamaheswari Janakiraman, Ernest Ndzebet, Thillaiyan Ramanathan, Diana Marmorstein, Mario Destephen, Gregory Miller
  • Patent number: 8986896
    Abstract: The present invention provides an electrolyte solution including: a solvent composed primarily of a BF3-cyclic ether complex; and a supporting electrolyte. For example, preferred is an electrolyte solution in which the cyclic ether is one or two or more selected from optionally substituted tetrahydrofuran and optionally substituted tetrahydropyran.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: March 24, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, National University Corporation Shizuoka University
    Inventors: Tatsuo Fujinami, Tatsuya Koga
  • Patent number: 8980474
    Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a current collector, an active material layer on the current collector and including an amorphous silicon oxide represented by SiOx (0.95<x<1.7), and an SEI layer on the active material layer and including about 70 area % or more of protrusion parts having a size of about 5 nm to 300 nm during charging of the battery.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: March 17, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Gon Kim, Hee-Joon Chun, Joon-Sup Kim, Wan-Uk Choi, Hisaki Tarui, Jea-Woan Lee, Jae-Yul Ryu, Young-Chang Lim, Seung-Hee Park
  • Publication number: 20150064537
    Abstract: In one embodiment, a lithium-ion battery includes an anode, a cathode, a solid electrolyte layer positioned between the anode and the cathode, and a first protective layer continuously coating a cathode facing side of the solid electrolyte layer, the first protective layer formed on the cathode facing side in such a manner that a space within the solid electrolyte layer opening to the cathode facing side is filled with a first protective layer finger.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: John F. Christensen, Edward Knudsen, Aleksandar Kojic
  • Publication number: 20150056488
    Abstract: The Coulombic efficiency of metal deposition/stripping can be improved while also preventing dendrite formation and growth by an improved electrolyte composition. The electrolyte composition also reduces the risk of flammability. The electrolyte composition includes a polymer and/or additives to form high quality SEI layers on the anode surface and to prevent further reactions between metal and electrolyte components. The electrolyte composition further includes additives to suppress dendrite growth during charge/discharge processes. The electrolyte composition can also be applied to lithium and other kinds of energy storage devices.
    Type: Application
    Filed: July 21, 2014
    Publication date: February 26, 2015
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Ji-Guang Zhang, Wu Xu, Xilin Chen, Jiulin Wang, Yaohui Zhang, Jianfeng Qian
  • Publication number: 20140377621
    Abstract: A secondary battery charged and discharged even after dissolution. The active material in the cathode body and/or the anode body is a liquid, or the active material undergoes phase transition into a liquid is provided. The secondary battery (1) includes: a cathode collector (2), a cathode body (3), a solid electrolyte (4), an anode body (5), and an anode collector (6). The cathode body and the anode body are sealed by the solid electrolyte, the cathode collector, and/or the anode collector. The cathode body and the anode body preferably contain an active material that undergoes phase transition from a solid to a liquid, or to a phase containing a liquid, due to charge and discharge. The cathode body or the anode body preferably contains a liquid active material. A polymeric layer may be inserted between the cathode body and/or the anode body and the solid electrolyte.
    Type: Application
    Filed: June 11, 2012
    Publication date: December 25, 2014
    Applicant: TOHOKU UNIVERSITY
    Inventors: Yuki Hanyu, Itaru Honma
  • Publication number: 20140370358
    Abstract: Disclosed is a high heat resistance composite separator including a porous substrate having a plurality of pores, an inorganic coating layer formed on one surface of the porous substrate, the inorganic coating layer including a plurality of inorganic particles and a binder polymer disposed on a portion or all of surfaces of the inorganic particles to connect and bind the inorganic particles, and a high heat resistance polymer coating layer formed on the other surface of the porous substrate, the high heat resistance polymer coating layer including a high heat resistance polymer and inorganic particles dispersed in the high heat resistance polymer.
    Type: Application
    Filed: February 13, 2012
    Publication date: December 18, 2014
    Applicant: Kokam Co., Ltd.
    Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo, Yoo-Jung Kwon
  • Patent number: 8911897
    Abstract: A lithium microbattery comprises a packaging thin layer formed by a matrix of polymer material in which metallic particles are dispersed. The packaging thin layer constitutes at least a part of the anodic current collector of the lithium microbattery. The polymer material is advantageously obtained from at least a photopolymerizable precursor material chosen from bisphenol A diglycidylether, bisphenol F butanediol diglycidil ether, 7-oxabicylco[4.1.0]heptane-3-carboxylate of 7-oxabicylco[4.1.0]hept-3-ylmethyl and a mixture of bisphenol A and epichloridine. It can also be a copolymer obtained from a homogenous mixture of at least two photopolymerizable precursor materials, respectively acrylate-base, such as diacrylate 1,6-hexanediol and methacrylate, and epoxide-base, for example chosen from bisphenol A diglycidylether, 7-oxabicylco[4.1.0]heptane-3-carboxylate of 7-oxabicylco[4.1.0]hept-3-ylmethyl and a mixture of bisphenol A and epichloridine.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: December 16, 2014
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Messaoud Bedjaoui, Steve Martin, Raphaël Salot
  • Patent number: 8900743
    Abstract: A thin film solid state battery configured with barrier regions formed on a flexible substrate member and method. The method includes forming a bottom thin film barrier material overlying and directly contacting a surface region of a substrate. A first current collector region can be formed overlying the bottom barrier material and forming a first cathode material overlying the first current collector region. A first electrolyte can be formed overlying the first cathode material, and a second current collector region can be formed overlying the first anode material. The method also includes forming an intermediary thin film barrier material overlying the second current collector region and forming a top thin film barrier material overlying the second electrochemical cell. The solid state battery can comprise the elements described in the method of fabrication.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 2, 2014
    Assignee: Sakti3, Inc.
    Inventors: Hyoncheol Kim, Marc Langlois, Myoungdo Chung, Ann Marie Sastry, Yen-Hung Chen, Stephen Buckingham
  • Publication number: 20140349166
    Abstract: The present invention provides a positive electrode for a nonaqueous electrolyte secondary battery in which after continuous charge is performed, an increase in battery thickness is suppressed, and a residual capacity rate is increased by reduction in gas generation amount and also provides a method for manufacturing the positive electrode described above. This positive electrode includes a positive electrode collector and a positive electrode active material layer which contains a positive electrode active material and a phosphate salt represented by NaH2PO4 and which is formed on a surface of the positive electrode collector. In addition, on a surface of the positive electrode active material layer, a porous layer containing an inorganic oxide filler is preferably formed.
    Type: Application
    Filed: October 29, 2012
    Publication date: November 27, 2014
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Takanobu Chiga, Naoki Imachi
  • Publication number: 20140308562
    Abstract: An electrolyte for lithium secondary batteries includes a lithium salt, a nonaqueous organic solvent, and a compound represented by Formula 1 below as an additive: where R1, R2, R3, R4, and R5 in Formula 1 are defined as those specified in the specification.
    Type: Application
    Filed: January 14, 2014
    Publication date: October 16, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Myung-Hwan Jeong, Soo-Jin Kim, Myung-Heui Woo, Hye-Jin Park, Moon-Sung Kim, Si-Young Cha, Min-Ju Lee, Vladimir Egorov, Woo-Cheol Shin
  • Publication number: 20140272523
    Abstract: An electrical storage device includes a cathode, an anode, a protective film that is provided between the cathode and the anode, and an electrolyte solution, the protective film including a polymer that includes a repeating unit derived from a fluorine-containing monomer, and a repeating unit derived from an unsaturated carboxylic acid.
    Type: Application
    Filed: October 4, 2012
    Publication date: September 18, 2014
    Applicant: JSR CORPORATION
    Inventors: Yoshiharu Otsuka, Hironori Kitaguchi, Nobuyuki Fujihara
  • Patent number: 8828580
    Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety of electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: September 9, 2014
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
  • Publication number: 20140227578
    Abstract: The problem of the present invention is to provide a lithium solid state battery in which reaction resistance is reduced. The present invention solves the above-mentioned problem by providing a lithium solid state battery including a cathode active material layer containing a cathode active material, an anode active material layer containing an anode active material, and a solid electrolyte layer formed between the above-mentioned cathode active material layer and the above-mentioned anode active material layer, wherein a reaction inhibition portion including a Li ion conductive oxide having a B—O—Si structure is formed at an interface between the above-mentioned cathode active material and a high resistive layer-forming solid electrolyte material that reacts with the above-mentioned cathode active material to form the high resistive layer.
    Type: Application
    Filed: May 19, 2011
    Publication date: August 14, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Satoshi Yoshida
  • Patent number: 8771860
    Abstract: A lithium secondary battery provided by the present invention includes a spirally wound electrode body in which a positive electrode sheet and a negative electrode sheet are spirally wound with a separator sheet 40 interposed therebetween, wherein on a sheet surface of at least any one from among the positive electrode sheet, negative electrode sheet, and separator sheet 40 constituting the spirally wound electrode body, a porous layer 60 is formed along a longitudinal direction of the sheet 40, and the porous layer 60 is thicker in a spiral winding direction of the spirally wound electrode body in a winding center portion 62 than in a winding outer portion 64.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: July 8, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoyoshi Ueki, Yusuke Fukumoto, Harunari Shimamura
  • Patent number: 8715878
    Abstract: The present invention provides a method for manufacturing an MEA with high production efficiency. It is a feature of the present invention that the method for manufacturing an MEA includes coating a first catalyst ink on a substrate to form a coated layer of the first catalyst ink, removing the solvent in the coated layer of the first catalyst ink to form a first electrode catalyst layer, coating an electrolyte ink on the first electrode catalyst layer to form a coated layer of the electrolyte ink, removing the solvent in the coated layer of the electrolyte ink to form a polymer electrolyte membrane, coating a second catalyst ink on the polymer electrolyte membrane to form a coated layer of the second catalyst ink, and removing the solvent in the coated layer of the second catalyst ink to form a second electrode catalyst layer.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: May 6, 2014
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Masashi Oota, Yasuhiro Haba
  • Patent number: 8715847
    Abstract: The present invention provides a lithium-sulfur battery with a polysulfide confining layer, which can prevent loss of polysulfide formed on the surface of a positive electrode during charge and discharge reactions, thus improving the durability of the battery. For this purpose, the present invention provides a lithium-sulfur battery including a hydrophilic polysulfide confining layer interposed between a positive electrode and a separator to prevent a polysulfide-based material from being lost from the surface of the positive electrode during discharge.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: May 6, 2014
    Assignee: Hyundai Motor Company
    Inventors: Sam Ick Son, Hee Yeon Ryu
  • Publication number: 20140106186
    Abstract: A lithium ion battery includes an anode and a cathode. The cathode includes a lithium, manganese, nickel, and oxygen containing compound. An electrolyte is disposed between the anode and the cathode. A protective layer is deposited between the cathode and the electrolyte. The protective layer includes pure lithium phosphorus oxynitride and variations that include metal dopants such as Fe, Ti, Ni, V, Cr, Cu, and Co. A method for making a cathode and a method for operating a battery are also disclosed.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Applicant: UT-BATTELLE, LLC
    Inventor: UT-BATTELLE, LLC
  • Publication number: 20140099529
    Abstract: A power storage device with a higher degree of safety is provided. Further, a power storage device with improved cycle life is provided. In the power storage device, an ionic liquid as a solvent of an electrolyte solution, and an exterior body is covered with a conductive component so as to prevent direct contact between a positive electrode current collector and the exterior body. This suppresses elution of the positive electrode current collector due to contact between different kinds of metals and accordingly prevents a phenomenon in which the eluted metal of the positive electrode current collector is deposited on a negative electrode and the deposited metal comes in contact with a positive electrode. Thus, an internal short-circuit caused by the contact can be prevented.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 10, 2014
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Jun ISHIKAWA, Kyosuke ITO, Rie YOKOI
  • Patent number: 8673477
    Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: March 18, 2014
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko, Bruce Katz
  • Publication number: 20140057153
    Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety of electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.
    Type: Application
    Filed: June 27, 2013
    Publication date: February 27, 2014
    Inventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
  • Patent number: 8658304
    Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: February 25, 2014
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
  • Patent number: 8580332
    Abstract: Thin-film battery methods for complexity reduction are described. Processing equipment arrangements suitable to support thin-film battery methods for complexity reduction are also described. Cluster tools to support thin-film battery methods for complexity reduction are also described.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 12, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Byung-Sung Kwak, Nety M. Krishna
  • Publication number: 20130252064
    Abstract: Disclosed is a power storage element including a positive electrode current collector layer and a negative electrode current collector layer which are arranged on the same plane and can be formed through a simple process. The power storage element further includes a positive electrode active material layer on the positive electrode current collector layer; a negative electrode active material layer on the negative electrode current collector layer; and a solid electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are formed by oxidation treatment.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 26, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kazutaka Kuriki, Ryota Tajima, Tamae Morikawa
  • Patent number: 8541128
    Abstract: Disclosed is a rechargeable lithium battery comprising a negative electrode and a positive electrode capable of intercalating and deintercalating lithium, and an electrolyte, wherein the electrolyte comprises a polyacrylate compound having three or more acrylic groups.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: September 24, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takitaro Yamaguchi, Ryuichi Shimizu, Cheol-Soo Jung
  • Patent number: 8530108
    Abstract: A fuel cell includes membrane electrode assemblies disposed in a planar arrangement. Each membrane electrode assembly includes an electrolyte membrane, an anode catalyst layer, and a cathode catalyst layer disposed counter to the cathode catalyst via the electrolyte membrane. Interconnectors (conductive members) are provided on the lateral faces of the electrolyte membranes disposed counter to each another in the neighboring direction of the membrane electrode assemblies. Each interconnector includes a support portion protruding toward the central region of the electrolyte member on the cathode side of the electrolyte membrane. The support portion is in contact with the cathode-side surface of an edge of the electrolyte membrane, and the electrolyte membrane is held by the support portion.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: September 10, 2013
    Assignee: Societe BIC
    Inventors: Hiroki Kabumoto, Takashi Yasuo, Gerard F McLean, Jeremy Schrooten
  • Patent number: 8501339
    Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 6, 2013
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
  • Patent number: 8455131
    Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: June 4, 2013
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
  • Patent number: 8389147
    Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: March 5, 2013
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
  • Publication number: 20130052508
    Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a current collector, an active material layer on the current collector and including an amorphous silicon oxide represented by SiOx (0.95<x<1.7), and an SEI layer on the active material layer and including about 70 area % or more of protrusion parts having a size of about 5 nm to 300 nm during charging of the battery.
    Type: Application
    Filed: March 29, 2012
    Publication date: February 28, 2013
    Inventors: Tae-Gon Kim, Hee-Joon Chun, Joon-Sup Kim, Wan-Uk Choi, Hisaki Tarui, Jea-Woan Lee, Jae-Yul Ryu, Young-Chang Lim, Seung-Hee Park
  • Publication number: 20120308870
    Abstract: An electrode active material for an all solid state secondary battery, which is able to have the controlled orientation of a crystal face at the interface between an electrode layer and an electrolyte layer in order to enhance the battery performance, and an all solid state secondary battery including the electrode active material. The electrode active material includes a carbon material having an intensity ratio (P002/P100) of 600 or less between the X-ray diffraction peak intensity P002 in the (002) plane and the X-ray diffraction peak intensity P100 in the (100) plane, which are obtained when a surface of a compact prepared by compression molding of a powder of the carbon material at a pressure of 110 MPa is irradiated with X-ray. The all solid state secondary battery includes a positive electrode, a negative electrode, and a solid electrolyte, and the negative electrode contains the electrode active material.
    Type: Application
    Filed: August 16, 2012
    Publication date: December 6, 2012
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Sayaka Okuda, Kazuhiro Yamada, Masanori Endo