Chemically Specified Organic Solvent Containing Patents (Class 429/324)
  • Patent number: 11888076
    Abstract: A solar cell of an embodiment includes: a transparent substrate; a p-electrode on the substrate, the p-electrode including a first p-electrode containing an Sn-based metal oxide, a second p-electrode having an opening and consisting of a wiring containing a metal or graphene, and a third p-electrode containing an In-based metal oxide; a p-type light absorbing layer in direct contact with a surface of the first p-electrode on a side opposite to the second p-electrode side; an n-type layer provided on the p-type light absorbing layer; and an n-electrode provided on the n-type layer. The third p-electrode is provided to be present between the first p-electrode and the second p-electrode and to be in direct contact with an upper surface of the second p-electrode. An entire side surface of the second p-electrode is in direct contact with the first p-electrode.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: January 30, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Kazushige Yamamoto, Soichiro Shibasaki, Yuya Honishi, Naoyuki Nakagawa, Mutsuki Yamazaki, Yoshiko Hiraoka
  • Patent number: 11881580
    Abstract: A bipolar electrode for a lithium battery, the bipolar electrode comprising: (a) a current collector comprising a conductive material foil having two opposing primary surfaces, wherein one or both of the primary surfaces is optionally coated with a layer of graphene or expanded graphite material; and (b) a negative electrode layer and a positive electrode layer respectively deposited on the two primary surfaces, wherein the positive electrode layer comprises a mixture of particles of a cathode active material and a quasi-solid or solid-state electrolyte and the electrolyte comprises a nitrile and a polymer, which is a polymerization or crosslinking product of a reactive additive comprising (i) a first liquid solvent that is polymerizable, (ii) an initiator or a curing agent, and (iii) a lithium salt. Also provided is a bipolar battery that comprises a plurality of bipolar electrodes connected in series.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: January 23, 2024
    Assignee: Global Graphene Group, Inc.
    Inventor: Bor Z. Jang
  • Patent number: 11876191
    Abstract: The present invention relates to a method for activating a secondary battery. The present invention comprises: a primary charging step of charging a secondary battery including a positive electrode, a negative electrode, a separator, and an electrolyte; a room temperature-aging step of storing, at a room temperature, the secondary battery that has undergone the primary charging step; and a high temperature-aging step of storing, at a high temperature, the secondary battery that has undergone the room temperature-aging step, wherein charging/discharging is performed by alternately applying + current and ? current to the secondary battery at the end of the primary charging step. The method for activating a secondary battery according to the present invention includes alternately applying + current and ? current to the secondary battery at the end of the primary charging step to stabilize an SEI film, thereby shortening a following-up aging time.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: January 16, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: In Young Cha, Joon Sung Bae, Sung Hoon Yu, Seung Youn Choi, Gyu Ok Hwang
  • Patent number: 11843132
    Abstract: The present disclosure is to suppress the scratching of or damage to an exterior body or current collectors caused by displacement of terminals connected to electrode bodies when a battery expands or contracts. The displacement of terminals when a battery expands or contracts is prevented by arranging the protruding positions of the terminals side by side with at least one of a positive electrode terminal and a negative electrode terminal formed in a crank-like shape, and supporting the positive electrode terminal and the negative electrode terminal by a holder.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: December 12, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryo Kagami
  • Patent number: 11843092
    Abstract: The present disclosure provides a nonaqueous electrolyte solution which contains: a nonaqueous solvent containing acetonitrile and vinylene carbonate; and a compound represented by general formula (1) R1-A-R2 (wherein A represents a divalent group that has a structure represented by one of formulae (1-2) to (1-5); and each of R1 and R2 independently represents an aryl group, an alkyl group which may be substituted by a halogen atom, while having from 1 to 4 carbon atoms, an alkyl group, a vinylidene group which may be substituted by a halogen atom, or an aryl group which may be substituted by a halogen atom; or alternatively, R1 and R2 may combine with each other and form, together with A, a ring structure that may have an unsaturated bond).
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: December 12, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hirokazu Kamine, Naoki Matsuoka, Makoto Ito, Xun Zhang
  • Patent number: 11817555
    Abstract: The present disclosure relates to a composition for a polymer electrolyte, a polymer electrolyte comprising the same, and a method for producing the polymer electrolyte, and specifically, to a composition for a polymer electrolyte comprising an ion conductive monomer and a polymerizable comonomer, and a polymer electrolyte comprising the same.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: November 14, 2023
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jung-hyun Lee, Jungjoon Yoo, Jeong Hun Baek, Jeong-gu Yeo, Hyun Ju Lim, Hye Jin Lee
  • Patent number: 11804590
    Abstract: A secondary battery and a preparation method thereof, and a battery module, battery pack, and apparatus containing a secondary battery are provided. In some embodiments, the secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte, where the positive electrode plate includes a positive electrode current collector and a positive electrode film layer that is disposed on at least one surface of the positive electrode current collector and that includes a positive electrode active material, and the negative electrode plate includes a negative electrode current collector and a negative electrode film layer that is disposed on at least one surface of the negative electrode current collector and that includes a negative electrode active material; and the positive electrode active material includes a first material and a second material.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: October 31, 2023
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Qian Liu, Quanguo Li, Xia Hu, Yonghuang Ye, Wei Li
  • Patent number: 11777085
    Abstract: The application relates to the field of lithium ion battery technology and, more particularly, relates to a lithium-supplement layer and its negative electrode sheet, a lithium ion battery and a device. The lithium-supplement layer is formed by connecting a transition layer, an oxide layer and a surface layer in sequence, the surface layer contains an appropriate amount of an organic material and a filling substance, which can reduce a winding temperature of the negative electrode sheet, the oxide layer substance in the lithium-supplement layer is used to provide an additional lithium source, after injection, the lithium source can be continuously supplemented during the cycle process to improve the activity of a lithium layer, at the same time, the filling substance contained in the surface layer can effectively play a role of restraining the expansion of an active substance, and improve the battery cycle performance.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: October 3, 2023
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Shitong Chen, Bin Xie, Zhijie Gong, Zhao Hu, Lin Ma
  • Patent number: 11777079
    Abstract: The present invention describes a silicon-carbon composite anode tor lithium-ion batteries comprising 40-80 weight % of silicon particles, 10-45 weight % of carbon, consisting of carbon black and graphite, and a combination of carboxymethyl cellulose (CMC) and styrene butadiene rubber (SB.R) as a binder. The invention also comprises a method of manufacturing the anode and a Li-ion battery comprising the Si—C composite anode according to the present invention.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 3, 2023
    Assignee: ELKEM ASA
    Inventors: Hanne Flaten Andersen, Jorunn Voje
  • Patent number: 11728508
    Abstract: Provided is a lithium secondary battery including an anode including a silicon-based anode active material; a cathode; and an electrolyte, the electrolyte including a lithium salt, a non-aqueous organic solvent, and a conjugated diene compound.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: August 15, 2023
    Assignee: SK On Co., Ltd.
    Inventors: Dai In Park, Hyo Shin Kwak, Myoung Lae Kim, In Haeng Cho
  • Patent number: 11705580
    Abstract: Electrolytes for lithium ion batteries with carbon-based, silicon-based, or carbon- and silicon-based anodes include a lithium salt; a nonaqueous solvent comprising at least one of the following components: (i) an ester, (ii) a sulfur-containing solvent, (iii) a phosphorus-containing solvent, (iv) an ether, (v) a nitrile, or any combination thereof, wherein the lithium salt is soluble in the solvent; a diluent comprising a fluoroalkyl ether, a fluorinated orthoformate, a fluorinated carbonate, a fluorinated borate, a fluorinated phosphate, a fluorinated phosphite, or any combination thereof, wherein the lithium salt has a solubility in the diluent at least 10 times less than a solubility of the lithium salt in the solvent; and an additive having a different composition than the lithium salt, a different composition than the solvent, and a different composition than the diluent. In some electrolytes, the nonaqueous solvent comprises an ester.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: July 18, 2023
    Assignee: Battelle Memorial Institute
    Inventors: Xia Cao, Ji-Guang Zhang, Wu Xu
  • Patent number: 11699783
    Abstract: Hybrid electrodes for batteries are disclosed having a protective electrochemically active layer on a metal layer. Other hybrid electrodes include a silicon salt on a metal electrode. The protective layer can be formed directly from the reaction between the metal electrode and a metal salt in a pre-treatment solution and/or from a reaction of the metal salt added in an electrolyte so that the protective layer can be formed in situ during battery formation cycles.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 11, 2023
    Assignee: CORNELL UNIVERSITY
    Inventors: Lynden A. Archer, Zhengyuan Tu, Snehashis Choudhury, Shuya Wei, Qing Zhao
  • Patent number: 11695154
    Abstract: An electrolyte and a lithium secondary battery including the same. The electrolyte includes a lithium salt; an organic solvent; and at least one siloxane compound represented by Formula 1 or Formula 2, wherein an amount of the at least one siloxane compound is about 0.05 wt % to about 20 wt % based on a total weight of the electrolyte. In Formulae 1 and 2, group substituents and number indices are as defined in the specification.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: July 4, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Yoonsok Kang, Myongchun Koh, Jihyun Jang, Insun Park, Jinah Seo, Yeonji Chung
  • Patent number: 11631866
    Abstract: Provided is pouch battery including an electrode assembly, and a case in which the electrode assembly is sealed and housed; the electrode assembly including a stacked structure of a sheet cathode, a sheet separator, and a sheet anode; the sheet cathode including a positive electrode active material disposed on a current collector; the sheet anode is thin conductive sheet on which lithium metal reversibly deposits on a surface thereof during discharging; the sheet anode being made of a conductive material other than lithium and having a surface substantially free from lithium metal prior to charging the battery. The pouch battery design is flexible and lightweight and provides high power density, making it a suitable replacement for conventional lithium-ion primary batteries and thermal batteries in many applications. Power can be further increased by the application of external compression. Additives and formation conditions can be tailored for forming a solid-electrolyte interface (SEI).
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: April 18, 2023
    Assignee: SAFT AMERICA
    Inventors: Thomas Greszler, Saori Tokuoka
  • Patent number: 11621417
    Abstract: The present embodiment provides a lithium ion secondary battery including a positive electrode containing LiaNixCoyMzO2 (0.9?a?1.2, 0.3?x?0.8, 0.2?y+z?0.7, where M is a metal element other than Li, Ni, and Co) as a positive active material, and a negative electrode containing non-graphitic carbon as a negative active material. In this lithium ion secondary battery, at a portion where the positive electrode and the negative electrode face each other, a basis weight (P) of the positive active material and a basis weight (N) of the negative active material satisfy a relational expression of 0.65?P/N?1.05.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: April 4, 2023
    Assignee: GS Yuasa International Ltd.
    Inventors: Sumio Mori, Tomonori Kako, Akihiko Miyazaki, Masashi Takano, Ukyo Harinaga
  • Patent number: 11600847
    Abstract: Provided is a lithium secondary battery including an anode including a silicon-based anode active material; a cathode; and an electrolyte, the electrolyte including a lithium salt, a non-aqueous organic solvent, and a conjugated diene compound.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: March 7, 2023
    Assignee: SK On Co., Ltd.
    Inventors: Dai In Park, Hyo Shin Kwak, Myoung Lae Kim, In Haeng Cho
  • Patent number: 11581579
    Abstract: The present application discloses a lithium ion secondary battery comprising a positive electrode plate, a negative electrode plate, a separator and an electrolyte, wherein the positive electrode plate comprises a positive electrode current collector and a positive electrode film provided on at least one surface of the positive electrode current collector, and the positive electrode film comprises a first positive electrode active material represented by chemical formula Li1+xNiaCobMe1-a-bO2-yAy and a second positive electrode active material represented by chemical formula Li1+zMncN2-cO4-dBd; the positive electrode plate has a resistivity r of 3500 ?·m or less; and the electrolyte comprises a fluorine-containing lithium salt type additive. The lithium ion secondary battery provided by the present application is capable of satisfying high safety performance, high-temperature storage performance and cycle performance simultaneously.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: February 14, 2023
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Zhiqiang Li, Changlong Han
  • Patent number: 11522252
    Abstract: Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Also provided are electrochemical cells comprising such separators.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: December 6, 2022
    Assignee: LG Energy Solution, Ltd.
    Inventors: Steven A. Carlson, Ifenna Kingsley Anakor, Greg Robert Farrell
  • Patent number: 11489205
    Abstract: The present disclosure discloses a primary lithium battery comprising a reactive solid cathode, a liquid electrolyte, a separator, and a lithium anode. The liquid electrolyte is ionic conductive and is configured to undergo a series coupling reaction after solid phase reaction of the reactive solid cathode and the lithium anode. The liquid electrolyte comprises a solvent and an electrolyte salt, and a concentration of the electrolyte salt in the liquid electrolyte is 0.1-3 mol/L. The solvent comprises a sulfite ester type compound and an organic solvent, and a concentration of the sulfite ester type compound in the organic solvent is 5 wt % to 90 wt %.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: November 1, 2022
    Assignee: XIAMEN UNIVERSITY
    Inventors: Yong Yang, Liangfan Xu, Yixiao Li, Jun Gao, Huajin He
  • Patent number: 11482731
    Abstract: A battery includes a positive electrode containing sulfur, a negative electrode containing a material for occluding and releasing a lithium ion, and an electrolytic solution. The electrolytic solution contains at least one of a liquid complex and a liquid salt in which a polysulfide is insoluble or almost insoluble, and a solvent in which a polysulfide is soluble. The electrolytic solution has a Li2S8 saturation sulfur concentration of 10 mM or more and 400 mM or less.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: October 25, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuaki Fukushima, Kazumasa Takeshi, Tadahiko Kubota
  • Patent number: 11466376
    Abstract: A method and electrolysis cell for producing lithium metal at a low temperature. The method includes combining (i) acetonitrile and (ii) a cation bis(trihaloalkylsulfonyl)imide, cation bis(trihalosulfonyl)imidic acid, a cation bis(trihaloalkylsulfonyl)amide, or cation bis(trihaloalkylsulfonyl)amidic acid in a weight ratio of (i) to (ii) about 100:1 to about 5:1 to provide a non-aqueous electrolyte composition. A lithium compound selected from the group consisting of LiOH, Li2O and Li2CO3 is dissolved in the electrolyte composition to provide a lithium doped electrolyte composition. Power is applied to the electrolyte composition to form lithium metal on a cathode of an electrolysis cell. The lithium metal separated from the cathode has a purity of at least about 95 wt. %.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: October 11, 2022
    Assignee: CONSOLIDATED NUCLEAR SECURITY, LLC
    Inventor: John W. Freiderich
  • Patent number: 11462771
    Abstract: The present invention relates to a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing 0.1 to 5% by mass of a compound represented by the following general formula (I) and an energy storage device including the foregoing nonaqueous electrolytic solution. This nonaqueous electrolytic solution is able to improve charging storage properties and discharging storage properties of an energy storage device when used in the high-temperature and high-voltage environment. In the formula, R1 and R2 each independently represent an alkyl group having 1 to 4 carbon atoms.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 4, 2022
    Assignee: MU IONIC SOLUTIONS CORPORATION
    Inventor: Koji Abe
  • Patent number: 11404883
    Abstract: A charging apparatus, a charging method, and the like that can prevent deterioration in a battery by appropriate current adjustment and shorten charging time are provided. A charging apparatus (1) performs charging of a battery (31) with a constant current until a voltage of the battery (31) reaches a predetermined voltage and, after the predetermined voltage is achieved, performs charging of the battery (31) while controlling the current so as to keep the voltage constant. A deterioration measuring unit (31) detects a deterioration condition in the battery (31). A current and voltage adjusting unit (11) specifies an additional current in accordance with the deterioration condition. A power supplying unit (12) supplies the additional current to the battery (31) in addition to the constant current. Such a deterioration condition is specified by a voltage difference or a temperature difference detected by supplying a single amount of current for a certain period.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: August 2, 2022
    Assignee: GBS Corporation
    Inventor: Tadatsugu Kosugi
  • Patent number: 11245114
    Abstract: A secondary battery including a cathode having a primary cathode active material and an alkaline source material selected from the group consisting of Na2O, Na2O2, Na2S, NaF, NaCl, NaBr, Li2O, Li2O2, Li2S, LiF, LiCl, LiBr, Na2O, Na2O2, Na2S, NaF, NaCl, and a mixture of any two or more thereof; an anode having an anode active material; an electrolyte; and a separator.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: February 8, 2022
    Assignee: UChicago Argonne, LLC
    Inventors: Khalil Amine, Ali Abouimrane
  • Patent number: 11201327
    Abstract: In order to provide a lithium ion secondary battery having both high energy density and an excellent charge-rate characteristic, there is provided a lithium ion secondary battery including a positive electrode containing a positive electrode active material made of a lithium composite oxide, and nano-carbon having a Li ion diffusion path as an additive, and an electrolyte solution containing 0.5 mol/l or more of Li[(FSO2)2N] as an electrolyte, LiPO2F2 as an additive, and a ternary-system of ethylene carbonate (EC), dimethyl carbonate (DMC) and ethyl methyl carbonate (EMC), as solvents.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: December 14, 2021
    Assignee: NEC CORPORATION
    Inventors: Qian Cheng, Katsumi Maeda, Noriyuki Tamura
  • Patent number: 11139119
    Abstract: A supercapacitor comprising at least one cell formed of two electrodes of opposite polarity. The cell is formed from a positive electrode and a negative electrode made of activated carbon, between which an electrolyte composition is arranged comprising at least one nitrile solvent, at least one salt and also comprising at least one additive from the family of phosphazenes having at least one fluorine atom. One of the compositions comprises acetonitrile, a tetramethylammonium tetrafluoroborate salt and an additive, hexafluorocyclotriphosphazene at a concentration of 1 to 10%.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: October 5, 2021
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Matthieu Le Digabel, Agnés Biller, Nelly Penot
  • Patent number: 11139502
    Abstract: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte, the electrolyte including a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1: wherein, in Chemical Formula 1, R1 to R6 are each independently hydrogen, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C2 to C10 alkenyl group, a substituted or unsubstituted C2 to C10 alkynyl group, a substituted or unsubstituted C3 to C10 cycloalkyl group, or a substituted or unsubstituted C3 to C10 cycloalkenyl group, and n is an integer of 1 to 10.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Pavel Shatunov, Myungheui Woo, Harim Lee, Jin-Hyeok Lim, Hyunbong Choi, Olga Tsay, Hyejin Park
  • Patent number: 11121438
    Abstract: A high energy density rechargeable (HEDR) battery employs a combined current limiter/current interrupter to prevent thermal runaway in the event of internal discharge or other disruption of the separator. The combined current limiter/current interrupter is interior to the battery.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: September 14, 2021
    Assignee: American Lithium Energy Corporation
    Inventors: Jiang Fan, Dengguo Wu
  • Patent number: 11063256
    Abstract: According to one embodiment, an active material is provided. The active material includes particles of a monoclinic niobium titanium composite oxide. The particles include primary particles. The primary particles have an average aspect ratio of 5 or more.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: July 13, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Yasuhiro Harada, Norio Takami, Taro Fukaya, Takuya Iwasaki
  • Patent number: 11050087
    Abstract: Silane functionalized ionic liquids are disclosed as a part of an electrolyte for an electrical energy storage device including an aprotic organic solvent; an alkali metal salt; an additive; and an ionic compound including an anion and cation, wherein the cation is attached to a functional group including a silane functional group according to the base Formula (I)
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: June 29, 2021
    Assignee: NOHMS Technologies, Inc.
    Inventors: Surya Moganty, Gabriel Torres, Luigi Abbate, John Sinicropi, Xiaojing Zhu
  • Patent number: 11050085
    Abstract: An electrolyte for an electrochemical storage device is disclosed. In one embodiment, the electrolyte includes a lithium salt from about 3% to about 20% by weight, a primary solvent from about 15% to about 25% by weight, wide-temperature co-solvents from about 14% to about 55% by weight, interface forming compounds from about 0.5% to about 2.0% by weight, and a flame retardant compound from about 6% to about 60% by weight. The electrolyte interacts with the positive and negative electrodes of the electrochemical storage device to provide both high performance and improved safety such that the electrolyte offers adequate ionic conductivity over the desired operating temperature range, a wide electrochemical stability window, high capacities for both the cathode and anode, low electrode-electrolyte interfacial resistance, and reduced flammability.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: June 29, 2021
    Assignee: Lynntech, Inc.
    Inventors: Christopher P. Rhodes, Matthew E. Mullings
  • Patent number: 11043717
    Abstract: A non-aqueous electrolyte secondary battery with improved cycle durability includes a power generating element including a positive electrode obtained by forming a positive electrode active material layer containing a positive electrode active material on a surface of a positive electrode current collector, a negative electrode obtained by forming a negative electrode active material layer containing a negative electrode active material on a surface of a negative electrode current collector, and a separator, a ratio of a rated capacity to a pore volume of the separator being 1.55 Ah/cc or more, a ratio of a battery area to a rated capacity being 4.0 cm2/Ah or more, and a rated capacity being 30 Ah or more, wherein a variation in porosity in the separator is 4.0% or less.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: June 22, 2021
    Assignee: Envision AESC Japan Ltd.
    Inventors: Manabu Nishijima, Fumihiro Kawamura, Yuji Muroya, Yoshiaki Nitta
  • Patent number: 10826063
    Abstract: The present invention may improve the lifetime characteristics of a lithium secondary battery, and particularly, may provide a non-aqueous electrolyte solution or cathode including a phosphate-based compound which may exhibit stable and excellent lifetime characteristics at high temperature and high voltage regardless of the moisture content or the presence of a pressing process of the electrode.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: November 3, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Kyung Mi Lee, Doo Kyung Yang, Yoo Sun Kang, Jung Hoon Lee
  • Patent number: 10770754
    Abstract: The present invention relates to an electrolyte solution for a lithium-sulfur battery and a lithium-sulfur battery including the same. The electrolyte solution for a lithium-sulfur battery according to the present invention exhibits excellent stability, and may improve a swelling phenomenon by suppressing gas generation during lithium-sulfur battery operation.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: September 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: In Tae Park, Sung Won Hong, Charles Kiseok Song, You Hwa Ohk, Doo Kyung Yang, Chang Hoon Lee
  • Patent number: 10756390
    Abstract: The present invention provides a single-phase or homogeneous solution comprising a high concentration of a salt, in particular a lithium salt, in an organic solvent. Such a high salt content in organic solvent is useful in a variety of applications including, but not limited to, in electrical energy storage devices as well as other devices that can benefit from a low-volatility liquid electrolyte.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: August 25, 2020
    Assignee: SES Holdings Pte. Ltd.
    Inventors: Rajendra P. Singh, Jerry Lynn Martin
  • Patent number: 10707527
    Abstract: The teachings herein relate to a gel polymer electrolyte, manufacturing of a gel polymer electrolyte, and an electrochemical device including the gel polymer electrolyte. The present gel polymer electrolyte preferably includes a multi-component crosslinked polymer matrix; a dissociable salt; and an organic solvent. The content of the multi-component crosslinked polymer matrix preferably is 1 to 50 weight percent and preferably has a net structure formed by crosslinking at least three different kinds of cross-linkable monomers. Each of the cross-linkable monomers preferably includes at least two of the following functional groups: a carboxylic group, an acrylate group, or a cyano group. The method of manufacturing the gel polymer electrolyte preferably uses a thermal crosslinking or photo-crosslinking process.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: July 7, 2020
    Assignee: JENAX INC.
    Inventors: Sang Young Lee, Se Hee Kim, Sung Ju Cho
  • Patent number: 10490852
    Abstract: The present specification relates to an additive for an electrochemical device including a compound having a silyloxy group, and an electrolyte, an electrode and an electrochemical device.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: November 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Minji Gu, Jeong Hwan Koh, Soojung Yeo, Myung Jin Chun
  • Patent number: 10468732
    Abstract: A polymer electrolyte including: a polymer matrix including a cross-linked fluorine-containing polymer; and a liquid electrolyte embedded in the polymer matrix.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: November 5, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kihyun Kim, Myungjin Lee, Heungchan Lee, Dongjoon Lee, Hyunpyo Lee, Dongmin Im
  • Patent number: 10446849
    Abstract: Provided is a nonaqueous electrolyte secondary battery that allows a current cutoff mechanism to operate appropriately while maintaining high battery performance. The nonaqueous electrolyte secondary battery according to the present invention includes: a battery assembly provided with a positive electrode having a positive electrode active material layer retained on a positive electrode current collector, a negative electrode and a separator; a battery case housing the electrode assembly together with a nonaqueous electrolyte; and a current cutoff mechanism. The positive electrode active material layer includes a positive electrode active material and a conductive material. A compound containing a saturated cyclic hydrocarbon group is retained in at least a portion of the conductive material. The content of the compound containing a saturated cyclic hydrocarbon group is 0.5% by mass or more based on a value of 100% by mass for the total solid content of the positive electrode active material layer.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: October 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyo Ebisuzaki, Masaru Ishii, Hiroshi Hamaguchi, Toru Nakai
  • Patent number: 10438753
    Abstract: This invention described the preparation of a series of compounds that can be used as co-solvents, solutes or additives in non-aqueous electrolytes and their test results in various electrochemical devices. The inclusion of these novel compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise impossible with state-of-the-art electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for new Li ion chemistries. The potential application of these compounds goes beyond Li ion battery technology and covers any electrochemical device that employs non-aqueous electrolytes for the benefit of high energy density resultant from high operating voltages.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: October 8, 2019
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Kang Xu, Arthur Von Cresce
  • Patent number: 10418630
    Abstract: A lithium-sulfur battery cell includes a lithium anode and a carbon-sulfur cathode including a sulfur-impregnated carbon nanostructure defined by one or more layers of elementally doped nanoporous carbon arranged on one or more carbon nanotubes.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: September 17, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Feng Wu, Renjie Chen, Ji Qian, Yusheng Ye, Xiao Guang Yang, YuHong Xu, Theodore James Miller
  • Patent number: 10403928
    Abstract: A secondary battery includes a cathode, an anode, and an electrolytic solution. The anode or the electrolytic solution, or both contain a metal salt including an unsaturated carbon bond.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: September 3, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Ichiro Yamada, Hideki Nakai, Toshio Nishi, Tadahiko Kubota
  • Patent number: 10396400
    Abstract: An electrolyte for a lithium battery includes an organic solvent; and a compound represented by Formula 1: wherein, in Formula 1, X1 to X4, A1 to A4, and R1 to R4 are further defined in the specification.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 27, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Minju Lee, Woocheol Shin, Seungtae Lee, Vladimir Egorov, Soojin Kim
  • Patent number: 10347950
    Abstract: The present invention provides a sealed nonaqueous electrolyte secondary battery which is equipped with a current interrupt device that is actuated by a rise in internal pressure of a battery case and in which the current interrupt device is actuated in a speedy and stable manner during an overcharge. In the sealed nonaqueous electrolyte secondary battery, an electrode body formed by a positive electrode 10 and a negative electrode that oppose each other via a separator, an electrolyte, and an overcharge inhibitor are housed in the battery case. The positive electrode 10 includes a positive electrode current collector 12 and a positive electrode active material layer 14 which is formed on the current collector and which mainly contains a positive electrode active material. In addition, a conductive material layer 16 which mainly contains a conductive material is formed between the positive electrode active material layer 14 and the separator.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: July 9, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koji Takahata, Akihiro Ochiai
  • Patent number: 10326138
    Abstract: Materials having charge-storing properties and made variously of dipyridine-fused benzoquinones of formula (1) below or derivatives thereof, dipyridine-fused benzoquinones of formula (4) below or derivatives thereof, or dipyridine-fused benzoquinone skeleton-containing polymers are provided. In the formulas, Ar1 and Ar2 are each independently a pyridine ring that forms together with two carbon atoms on a benzoquinone skeleton, or a derivative thereof. When used as electrode active materials, these charge storage materials are capable of providing high-performance batteries possessing a high capacity, high rate characteristics and high cycle characteristics.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: June 18, 2019
    Assignees: Waseda University, Nissan Chemical Industries, Ltd.
    Inventors: Hiroyuki Nishide, Kenichi Oyaizu, Yuya Kambe, Takuji Yoshimoto
  • Patent number: 10290846
    Abstract: A separator for an electrochemical storage system, which is arrangeable between an anode and a cathode of the electrochemical storage system, is disclosed. The separator is formed from a semipermeable carrier material. The carrier material is formed from a fiberglass fleece where at least one surface side of the fiberglass fleece facing a cathode is modified in such a way that it is impermeable for an active material of the cathode. A method for the production of a separator is also disclosed.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: May 14, 2019
    Assignee: Daimler AG
    Inventor: Andreas Hintennach
  • Patent number: 10270122
    Abstract: A problem of the present invention is to provide a liquid electrolyte for a fluoride ion battery, in which fluoride anion conductivity is imparted to an ionic liquid containing fluoride complex anions. The present invention solves the problem by providing a liquid electrolyte for a fluoride ion battery, which comprises an ionic liquid containing specific fluoride complex anions and an anion acceptor having a specific acceptor number.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: April 23, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KYOTO UNIVERSITY
    Inventors: Hirofumi Nakamoto, Zempachi Ogumi, Jun-ichi Yamaki
  • Patent number: 10256448
    Abstract: A battery includes 1) an anode, 2) a cathode, and 3) an electrolyte disposed between the anode and the cathode. The anode includes a current collector and an interfacial layer disposed over the current collector, and the interfacial layer includes an array of interconnected, protruding regions that define spaces.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: April 9, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yi Cui, Guangyuan Zheng, Steven Chu, Kai Yan
  • Patent number: 10193182
    Abstract: Disclosed are: a non-aqueous electrolyte for a lithium secondary battery containing 1-20 parts by weight of a cyano group-containing pyrimidine-based compound on the basis of 100 parts by weight of an organic solvent; and a lithium secondary battery comprising the same.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 29, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Hoon Yu, Doo-Kyung Yang, Min-Jung Jou, Yoo-Sun Kang, Yoo-Seok Kim
  • Patent number: 10147949
    Abstract: A negative electrode material for a lithium ion battery according to an embodiment of the present disclosure includes graphite particles and amorphous carbon particles. The graphite particles have a median diameter (D50) A of 8.0 ?m or more and 11.0 ?m or less. A ratio A/B of the median diameter A (?m) to a median diameter (D50) B (?m) of the amorphous carbon particles satisfies a relation of 1.1<(A/B)?2.75.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: December 4, 2018
    Assignee: Automotive Energy Supply Corporation
    Inventors: Sohei Suga, Koichi Shinohara, Kenji Ohara, Toshihiro Horiuchi, Masanori Aoyagi, Junko Nishiyama