Include Electrolyte Chemically Specified And Method Patents (Class 429/188)
  • Patent number: 12365025
    Abstract: A fine metal linear body is provided in which the sintering temperature is lower than that in conventional examples. The fine metal linear body has a length of 0.5 to 200 ?m and a thickness of 30 nm to 10 ?m. When a length of a crystal of a metal constituting the fine metal linear body, in a direction in which the fine metal linear body extends, is taken as X, and a length thereof in a direction orthogonal to the direction is taken as Y, an X/Y value, which is a ratio of the X to the Y, is 4 or less, in three boundary regions when dividing the length of the fine metal linear body into four equal parts along the extending direction.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: July 22, 2025
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Yasuo Komoda, Yasuhiro Shibata, Yoshinori Shimizu, Ikuhiro Ozawa
  • Patent number: 12364935
    Abstract: The apparatus for producing a non-aqueous electrolytic solution includes: a moisture adsorption apparatus accommodating zeolite through which an organic non-aqueous solvent passes, an electrolyte addition apparatus for adding an alkali metal salt electrolyte to the organic non-aqueous solvent treated by the moisture adsorption apparatus, and an acid adsorption apparatus accommodating a weakly basic anion exchange resin through which an alkali metal salt electrolyte-containing solution obtained by the electrolyte addition apparatus passes.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: July 22, 2025
    Assignee: ORGANO CORPORATION
    Inventors: Kenta Aiba, Akira Nakamura, Miwa Ito
  • Patent number: 12357983
    Abstract: A proton exchange polymer comprises a polynorbornene copolymer with hydrophobic and hydrophilic blocks that can be phosphonated to produce phosphonic acid functional groups for proton exchange. Also, the polymer may be crosslinked to form quaternary ammonium groups on the side chains. The polynorbornene copolymer may be acid doped to ionically bond phosphonic acids to the quaternary ammonium groups that may for ion pairs for proton exchange. The proton exchange polymer has high temperature stability with the phosphonic acid functional group and can be mechanically durable with cross linking. Proton exchange membranes may utilize the proton exchange membrane in fuel cell and electrolyzer applications.
    Type: Grant
    Filed: December 23, 2024
    Date of Patent: July 15, 2025
    Assignee: USA Fortescue IP, INC.
    Inventors: Mengjie Chen, Qiuying Zhang, Bamdad Bahar, Xuzhe Cao, Monica Joan McNicol
  • Patent number: 12362430
    Abstract: A functional layer-equipped separator for an electrochemical device includes a separator substrate and a functional layer for an electrochemical device disposed on at least one surface of the separator substrate. The functional layer for an electrochemical device contains inorganic particles and a particulate polymer. A surface of the functional layer for an electrochemical device has a maximum height Sz of 2.5 ?m or more. The functional layer for an electrochemical device includes one or more protrusions each containing the particulate polymer at a surface thereof.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: July 15, 2025
    Assignee: ZEON CORPORATION
    Inventors: Koji Annaka, Masanobu Sato
  • Patent number: 12362393
    Abstract: An electrochemical cell has an anode comprising a silicon-based active material, a cathode comprising a cathode active material, and an electrolyte. The electrolyte is formulated with a propionate-based solvent, a carbonate-based solvent, trifluoro toluene, a lithium salt with a molar concentration of 2.0 M or greater, and less than or equal to 5.0 wt. % of fluoroethylene carbonate.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: July 15, 2025
    Assignee: APPLE INC.
    Inventors: Woo Cheol Shin, Hyea Kim, OuJung Kwon
  • Patent number: 12341196
    Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material layer. The positive electrode active material layer includes N-methyl-2-pyrrolidone. Where the positive electrode active material layer is divided equally in a width direction into two end regions and two middle regions located between the two end regions, a ratio of a content of N-methyl-2-pyrrolidone in the two middle regions to a content of N-methyl-2-pyrrolidone in the two end regions is greater than or equal to 4 and less than or equal to 8.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: June 24, 2025
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Swati Devi, Yuta Hirano, Shinichi Katayama, Takaaki Matsui, Tomoyo Ooyama
  • Patent number: 12334277
    Abstract: An aqueous electrolyte solution, a power storage device filled with the aqueous electrolyte solution, and a manufacturing method of the power storage device are illustrated. The aqueous electrolyte solution comprises alkali metal cations of different types. With the hydration enthalpy of the alkali metal cations of the different types, a simulated boiling point of the aqueous electrolyte solution is higher than the 105° C. of the conventional aqueous electrolyte solution. After processed by the reflow furnace at 250° C., the power storage device has no cracks found on its appearance, which meets the electrical requirements, and overcomes the problem of bursting of the power storage device filled with conventional aqueous electrolyte solution. The housing of the power storage device adopts liquid crystal polymer, and/or the power storage device is firstly vacuumed and then packaged, therefore increasing coulombic efficiency of electrical testing of the power storage device.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: June 17, 2025
    Assignee: WAYS TECHNICAL CORP., LTD.
    Inventors: Wen-Hsien Ho, Shao-Wei Chieh, Hsing-Yi Chen, Wan-Ling Liao
  • Patent number: 12334561
    Abstract: A negative electrode for an electrochemical cell of a secondary lithium metal battery is manufactured by a method in which a precursor solution is applied to a major surface of a lithium metal substrate to form a protective interfacial layer thereon. The precursor solution includes a first organic solvent mixture, a dioxolane, and a fluorinated organosilane. The protective interfacial layer exhibits a composite structure including a polymeric matrix component and a lithium-containing dispersed component embedded in the polymeric matrix component.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: June 17, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Kanako Okada, Jesse M. Roy, Li Yang, Mary E. Fortier
  • Patent number: 12322789
    Abstract: A composite anode for an all-solid-state battery, the composite anode having no active anode material is provided. Specifically, the anode includes: an anode current collector; and a protective layer positioned on the anode current collector, and including a metallic compound and a metal alloyable with lithium, wherein the metallic compound includes at least one selected from the group consisting of a metal oxide, a metal carbide, and a combination thereof.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: June 3, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Seung Ho Choi, Sang Heon Lee, Yun Sung Kim
  • Patent number: 12322759
    Abstract: An electrolytic solution, a lithium-sulfur secondary battery including the electrolytic solution and a module. The lithium-sulfur secondary battery has a positive electrode or a negative electrode containing a sulfur-containing electrode active material containing at least one selected from simple sulfur, lithium polysulfides (Li2Sn: 1?n?8) and organosulfur compounds. The electrolytic solution contains: a fluorinated ether represented by: Rf—(OR1)n—O—R2; an ether compound represented by: R4—(OCHR3CH2)x—OR5; and an alkali metal salt, wherein Rf, R1, R2, R3, R4, R5, n and x are as defined herein.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: June 3, 2025
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya Hidaka, Yoshiko Kuwajima, Shigeaki Yamazaki
  • Patent number: 12315965
    Abstract: The present application discloses a battery cell, a battery and a power consumption apparatus. The battery cell may include: a housing filled with an electrolyte inside; at least one core assembly arranged in the housing and at least one closed liquid bladder holding another electrolyte, the liquid bladder being arranged in the housing, and at least being provided corresponding to a side wall of the core assembly; at least one weakened structure being provided on the liquid bladder. Under a condition that a pressure in the liquid bladder reaches a threshold value, the another electrolyte in the liquid bladder may break through the weakened structure and flow out of the liquid bladder.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: May 27, 2025
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Xiaofu Xu, Yonghuang Ye, Qian Liu, Jianfu He, Xueyang Sun, Jingxuan Sun, Haizu Jin
  • Patent number: 12315882
    Abstract: An electrolyte solution additive for a secondary battery, a non-aqueous electrolyte solution, and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte solution additive is represented by Formula 1: In Formula 1, R is an unsubstituted or substituted alkyl group having 1 to 5 carbon atoms.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: May 27, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Jeong Woo Oh, Hyung Tae Kim, Chul Haeng Lee
  • Patent number: 12300787
    Abstract: An electrolyte includes a fluorinated cyclic carbonate, and a multi-nitrilemulti-nitrile compound having an ether bond. Based on a total weight of the electrolyte, a weight percentage (Cf) of the fluorinated cyclic carbonate is greater than a weight percentage (Cn) of the multi-nitrilemulti-nitrile compound having an ether bond, and about 3<Cf/Cn?about 5.5.
    Type: Grant
    Filed: July 26, 2024
    Date of Patent: May 13, 2025
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventor: Kefei Wang
  • Patent number: 12281394
    Abstract: Provided in one embodiment of the present disclosure is a copper foil, which comprises a copper layer having a matte surface and a shiny surface, and an anticorrosive film arranged on the copper layer, and has a residual stress of 0.5-25 MPa on the basis of the absolute value thereof, wherein the copper layer comprises copper and carbon (C), the amount of carbon (C) in the copper layer is 2-20 ppm, the copper layer has a plane (111), a plane (200), a plane (220) and a plane (311) including crystalline particles, the ratio of the diffraction intensity of the plane (220) to the sum of the diffraction intensities of the plane (111), the plane (200), the plane (220) and the plane (311) is 10-40%, and the crystalline particles of the plane (220) have an average particle size of 70-120 nm at room temperature.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: April 22, 2025
    Assignee: SK NEXILIS CO., LTD.
    Inventors: Shan Hua Jin, An Na Lee, Seung Min Kim
  • Patent number: 12283663
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery includes a compound represented by Formula 1 as follows, a lithium salt, and an organic solvent; and a lithium secondary battery including the same: wherein R1 to R3, L1 and A? are described herein.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: April 22, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Sol Ji Park, Jung Hoon Lee, Chul Haeng Lee, Yoo Sun Kang, Jae Won Lee
  • Patent number: 12278338
    Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte for a lithium secondary battery includes a lithium salt, an organic solvent, and a compound represented by Formula 1. In some embodiments, a lithium secondary battery includes a positive electrode, a negative electrode, and the electrolyte.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: April 15, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Hyun Seung Kim, Chul Haeng Lee, Yu Ha An, Jeong Woo Oh
  • Patent number: 12278337
    Abstract: The present invention relates to an electrolyte composition including a lithium salt; a non-aqueous organic solvent; a compound represented by a specific formula; and a perfluoropolyether oligomer, a gel polymer electrolyte including a polymer network which is formed by a polymerization reaction of the electrolyte composition, and a lithium secondary battery including the same.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: April 15, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Won Kyung Shin, Kyoung Ho Ahn, Jun Hyeok Han, Su Hyeon Ji, Chul Haeng Lee, Min Jung Kim, Won Tae Lee, Young Ho Oh, You Kyeong Jeong
  • Patent number: 12266766
    Abstract: A nonaqueous electrolyte secondary battery includes an electrode body and a nonaqueous electrolyte solution. An electrolyte solution passage is a flow passage through which the nonaqueous electrolyte solution flows between the inside and the outside of the electrode body. A region of a negative-electrode composite material layer in contact with the electrolyte solution passage is a damming portion and a region located on the center side relative to the damming portion is a liquid retaining portion. The damming portion contains a negative electrode active material of which an electrical potential relative to a positive electrode active material is high and a ratio of expansion or contraction due to an increase or decrease in SOC is high, when compared to a negative electrode active material contained in the liquid retaining portion. The electrolyte solution passage can be closed by the damming portion in a charge state where the damming portion expands.
    Type: Grant
    Filed: March 25, 2024
    Date of Patent: April 1, 2025
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahiro Yoshioka, Yoshitomo Takebayashi
  • Patent number: 12261309
    Abstract: A case-neutral electrochemical cell has an electrode assembly comprising a separator positioned between an anode and a cathode housed inside a casing. The casing supports a co-axial glass-to-metal seal comprising an inner insulating glass hermetically sealed to a terminal pin and to the inner annular surface of an inner ferrule. An outer insulating glass is hermetically sealed to the outer annular surface of the inner ferrule and the inner annular surface of an outer ferrule, and the outer ferrule is secured to an opening in the casing. Then, one of the anode and the cathode is connected to the terminal pin and the other of the anode and the cathode is connected to the first or inner ferrule. An electrolyte is provided in the casing to activate the electrode assembly.
    Type: Grant
    Filed: March 8, 2024
    Date of Patent: March 25, 2025
    Assignee: Greatbatch Ltd.
    Inventors: Gary Freitag, Paul T. Hallifax, Michael F. Scalise
  • Patent number: 12255311
    Abstract: An electrochemical device includes a cathode including a cathode current collector, a first cathode active material layer including a first cathode active material, and a second cathode active material layer including a second cathode active material. The first cathode active material layer is disposed between the cathode current collector and the second cathode active material layer, and the first cathode active material layer is formed on at least one surface of the cathode current collector. The first cathode active material layer is firstly formed on the cathode current collector, and the second cathode active material layer is secondly formed on the first cathode active material layer, then the second cathode active material layer and the first cathode active material layer are pressed together.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: March 18, 2025
    Assignee: Ningde Amperex Technology Limited
    Inventors: Huawei Zhong, Chaowang Lin, Fan Yang, Yisong Su
  • Patent number: 12255334
    Abstract: An electrochemical device including a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative current collector and a negative active material layer formed on the negative current collector. The negative active material layer contains a negative active material. A conductive material is disposed between the negative active material layer and the negative current collector. An average particle diameter of the conductive material is smaller than that of the negative active material. The negative active material layer possesses a specific weight. The electrochemical device improves high-temperature cycle expansion performance and overcharge protection performance.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: March 18, 2025
    Assignee: Ningde Amperex Technology Limited
    Inventors: Kefei Wang, Liang Shi
  • Patent number: 12249688
    Abstract: Polymer electrolyte membranes (PEMs) that include co-continuous domains of a conductive phase and a crosslinked network phase. The conductive phase can include one or more polymers having glass transition temperatures below room temperature. The crosslinked network phase can be formed from at least one monofunctional monomer and at least one di- or greater functional monomer.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: March 11, 2025
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Marc A. Hillmyer, Timothy Patrick Lodge, Lucas David McIntosh, Morgan Whitney Schulze
  • Patent number: 12243984
    Abstract: Provided is an apparatus for producing a non-aqueous electrolytic solution capable of easily performing purification treatment by removal of acidic impurities such as hydrogen fluoride contained in a non-aqueous electrolytic solution. The apparatus for producing a non-aqueous electrolytic solution comprises an ion exchange unit accommodating a weakly basic anion exchange resin through which an alkali metal salt electrolyte-containing solution having the alkali metal salt electrolyte dispersed in an carbonate ester is passed to obtain the non-aqueous electrolytic solution, wherein the weakly basic anion exchange resin has a styrene-based resin as substrate and an amino group as weakly basic anion exchange group.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: March 4, 2025
    Assignee: ORGANO CORPORATION
    Inventors: Kenta Aiba, Akira Nakamura, Eiya Yao
  • Patent number: 12199280
    Abstract: Provided is a non-aqueous secondary battery that includes a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte. The positive electrode includes LiNixCoyMnzO2 (0.7<x<0.9, 0<y<0.2, 0<z<0.2) as a lithium-containing metal oxide, and when the positive electrode before and after cycle testing of the non-aqueous secondary battery is analyzed by powder X-ray diffraction using Cu-K? radiation, the rate of change of the c-axis lattice constant is 1.0% or less. The non-aqueous electrolyte includes 5-20% by volume of acetonitrile and has an ion conductivity of at least 10 mS/cm and less than 15 mS/cm at 20° C.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: January 14, 2025
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Makoto Ito, Hirokazu Kamine, Naoki Matsuoka
  • Patent number: 12199241
    Abstract: An electrolyte solution for a nonaqueous electrolyte battery according to the present invention includes the following components: (I) a nonaqueous organic solvent; (II) an ionic salt as a solute; (III) at least one additive compound represented by the general formula (1); and (IV) at least one additive compound represented by the general formula (2), wherein the concentration of the component (IV) is 0.05 to 25.0 mass % with respect to 100 mass % of the component (III) where R1 are each independently a substituent group having at least one kind selected from unsaturated bond and aromatic ring.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: January 14, 2025
    Assignee: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Mikihiro Takahashi, Ryosuke Kondo, Takashi Mori, Masahiro Miura
  • Patent number: 12191496
    Abstract: The present invention provides a slurry composition comprising (a) an electrochemically active material and/or an electrically conductive agent; and (b) a binder comprising (i) a polymer comprising a fluoropolymer dispersed in a liquid medium; and (ii) a polymer comprising an addition polymer comprising constitutional units comprising the residue of a heterocyclic group-containing ethylenically unsaturated monomer. The present invention also provides electrodes and electrical storage devices.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: January 7, 2025
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Stuart D. Hellring, Scott W. Sisco, Jacob W. Mohin, Shanti Swarup, Calum H. Munro, Olivia L Jones, Ryan T. Plazio
  • Patent number: 12191485
    Abstract: The present invention relates to various lithium ion battery cathodes as well as lithium ion batteries incorporating one or more of these cathodes. The present invention further relates to processes of preparing the lithium ion battery cathode.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: January 7, 2025
    Assignee: The Curators of the University of Missouri
    Inventors: Xinhua Liang, Yan Gao
  • Patent number: 12159992
    Abstract: Systems and methods are provided for managing operation of silicon-dominant electrode cells. Polarization in a silicon-dominant cell during charge/discharge cycles may be assessed, with the polarization being assessed, at least in part, based on one or both of charge rate and discharge rate. One or more adjustments may be determined based on the assessing of polarization, and the one or more adjustments may be applied to operation of the silicon-dominant cell. The one or more adjustments configured to compensate for at least some of the effects of polarization in the silicon-dominant cell.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: December 3, 2024
    Assignee: Enevate Corporation
    Inventors: Hong Zhao, Benjamin Yong Park
  • Patent number: 12159970
    Abstract: An electrolytic solution includes a compound containing a —CN functional group and a compound containing a silicon functional group. M is C or Si. R11, R12, and R13 are each independently selected from a substituted or non-substituted C1-C12 alkylene group, a substituted or non-substituted C2-C12 alkenylene group, an O—R group, an R0—S—R group or an R0—O—R group, R0 and R are each independently selected from a substituted or non-substituted C1-C6 alkylene group. n is 0 or 1. R14 is H, fluorine, a cyano group, a substituted or non-substituted C1-C12 alkyl group, a substituted or non-substituted C2-C12 alkenyl group, an O—R1 group, an R0—S—R1 group, or an R0—O—R1 group. R0 is a substituted or non-substituted C1-C6 alkylene group, and R1 is a substituted or non-substituted C1-C6 alkyl group.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: December 3, 2024
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Wenqiang Li, Juan Ma, Chao Tang, Junfei Liu
  • Patent number: 12151946
    Abstract: The present application provides a positive electrode active material which may be in a particulate form and comprise a compound represented by Formula 1: NaxAyM1[M2(CN)6]?·zH2O??Formula 1 wherein, A is selected from at least one of an alkali metal element and an alkaline earth metal element, and the ionic radius of A is greater than the ionic radius of sodium; M1 and M2 are each independently selected from at least one of a transition metal element, 0<y?0.2, 0<x+y?2, 0<??1, and 0?z?10; and the particles of the positive electrode active material may have a gradient layer in which the content of the A element decreases from the particle surface to the particle interior.
    Type: Grant
    Filed: November 13, 2023
    Date of Patent: November 26, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Jiarui Tian, Xinxin Zhang, Chuying Ouyang, Yongsheng Guo, Jiadian Lan, Jixiang Wang, Wenguang Lin, Yuejuan Wan
  • Patent number: 12142760
    Abstract: A cathode active material for an all-solid-state battery includes: active material particles; and a coating layer covering at least a portion of the surface of the active material particles, wherein the coating layer includes lithium (Li), niobium (Nb), and at least one element selected from the group consisting of vanadium (V), zirconium (Zr) and combinations thereof.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: November 12, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, ULSAN National Institute of Science and Technology
    Inventors: A Reum Ha, Ju Yeong Seong, Yong Gu Kim, In Woo Song, Hong Seok Min, Yong Sub Yoon, Yun Sung Kim, Sung Woo Noh, Yong Jun Jang, Sang Heon Lee, Jae Phil Cho, Hyo Myoung Lee
  • Patent number: 12136703
    Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material. The electrolytic solution includes a cyclic sulfuric acid ester compound, a cyclic ether compound, and a chain alkyl dinitrile compound. A ratio of a weight (mg) of the cyclic sulfuric acid ester compound to a weight (g) of the positive electrode active material is from 0.01 to 2.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: November 5, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takumi Hiasa, Kazunari Motohashi
  • Patent number: 12132170
    Abstract: The present application relates to an electrolyte and an electrochemical device including the same. The electrolyte includes a diboronic acid compound and a nitrile compound, so that the storage performance and cycle performance of the electrochemical device using the electrolyte can be remarkably improved.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: October 29, 2024
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Junfei Liu, Shuirong Zhang, Juan Ma, Chao Tang
  • Patent number: 12132172
    Abstract: An electrolyte capable of lip roving the stability of a lithium-metal battery is provided. The electrolyte includes an organic solvent, a cosolvent, which is different from the organic solvent and includes a fluorine-based compound, and an additive having a lower lowest unoccupied molecular orbital (LUMO) value than the organic solvent.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: October 29, 2024
    Inventors: Ji Yong Lee, Jong Chan Song, Nam Soon Choi, Won Joon Lee, Sae Hun Kim, Min Young Lee, Young Joon Ahn
  • Patent number: 12126023
    Abstract: A hard carbon. A total quantity of adsorbed nitrogen under a relative pressure P/P0 of nitrogen between 10?8 and 0.035 is V1 cm3 (STP)/g and a total quantity of adsorbed nitrogen under a relative pressure P/Po of nitrogen between 0.035 and 1 is V2 cm3 (STP)/g in a nitrogen adsorption isotherm determined at a temperature of 77 K for the hard carbon. The hard carbon satisfies: V2/V1?0.20 and 20?V1?150, where P represents an actual pressure of nitrogen, and P0 represents a saturated vapor pressure of nitrogen at a temperature of 77 K.
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: October 22, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Xiaoxia Chen, Xinxin Zhang, Chuying Ouyang, Yongsheng Guo, Jiarui Tian, Yu Ma, Ben Liu, Xiaoji Zheng
  • Patent number: 12125983
    Abstract: An electrolyte includes a fluorinated cyclic carbonate, a multi-nitrilemulti-nitrile compound having an ether bond and a cyclic carbonate having a carbon-carbon double bond. Based on a total weight of the electrolyte, a weight percentage (Cf) of the fluorinated cyclic carbonate is greater than a weight percentage (Cn) of the multi-nitrilemulti-nitrile compound having an ether bond. The electrolyte can control the expansion of the electrochemical device, so that the electrochemical device has excellent cycle, storage and/or floating-charge performance.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: October 22, 2024
    Assignee: Ningde Amperex Technology Limited
    Inventor: Kefei Wang
  • Patent number: 12125982
    Abstract: An electrolyte includes a fluorinated cyclic carbonate, a multi-nitrilemulti-nitrile compound having an ether bond and a cyclic phosphonic anhydride. Based on a total weight of the electrolyte, a weight percentage (Cf) of the fluorinated cyclic carbonate is greater than a weight percentage (Cn) of the multi-nitrilemulti-nitrile compound having an ether bond. The electrolyte can control the expansion of the electrochemical device, so that the electrochemical device has excellent cycle, storage and/or floating-charge performance.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: October 22, 2024
    Assignee: Ningde Amperex Technology Limited
    Inventor: Kefei Wang
  • Patent number: 12119527
    Abstract: Disclosed herein is a redox flow battery (RFB). The battery generally includes: a positive electrolyte that is a first metal ion, a negative electrolyte that is a second metal ion, an ion exchange membrane positioned between the positive electrolyte and the negative electrolyte. The membrane is configured to restrict and/or prevent the passage of the first metal ion and/or the second metal ion therethrough, and is configured to maintain ionic conductivity between the positive electrolyte and the negative electrolyte.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: October 15, 2024
    Assignee: Washington University
    Inventors: Shrihari Sankarasubramanian, Vijay K. Ramani
  • Patent number: 12119453
    Abstract: This application provides a nonaqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous solvent includes a nonaqueous solvent and a lithium slat. The nonaqueous solvent includes a carbonate solvent and a high oxidation potential solvent, and the high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II. Based on a total weight of the nonaqueous solvent, a weight percentage of the high oxidation potential solvent is 10% to 60%. This application can not only improve electrochemical performance of the lithium-ion battery under high temperature and high voltage and improve safety performance such as overcharge safety and hot box safety of the lithium-ion battery, but also ensure that the lithium-ion battery has some kinetic performance.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: October 15, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Chengdu Liang, Peipei Chen, Chenghua Fu, Junmin Feng
  • Patent number: 12119480
    Abstract: The present invention relates to a method of manufacturing a secondary battery with improved resistance. According to the present invention, since the electrode assembly with succinonitrile interposed at the interface between the electrode and the separator is manufactured and then laminated, a high-pressure process is not required during lamination compared to the prior art, thereby improving processability, and since succinonitrile is dissolved in the electrolyte solution, it exhibits an effect of improving the resistance of the battery.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: October 15, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Ji Hoon Ryu, Song Yi Han
  • Patent number: 12119486
    Abstract: An anode material includes a lithiated silicon oxide material and a MySiOz layer. The lithiated silicon oxide material includes Li2SiO3, Li2Si2O5 or a combination thereof, and the MySiOz layer coats the lithiated silicon oxide material; M includes Mg, Al, Zn, Ca, Ba, B or any combination thereof; and 0<y<3, and 0.5<z<6. The anode material has high first discharge coulombic efficiency, high gram capacity, and good cycle performance.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: October 15, 2024
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: ChengBo Zhang, Ting Yi, Hang Cui, Yuansen Xie
  • Patent number: 12113170
    Abstract: An electrolyte composition contains a propane sultone compound substituted with a specific substituent, a cyclic fluorocarbonate-based compound and a nonaqueous solvent. A secondary battery containing the electrolyte composition is disclosed. The electrolyte composition has excellent SEI film-forming ability and HF-removing ability by containing the cyclic fluorocarbonate-based compound together with the propane sultone compound substituted with a specific substituent, so that the lifespan characteristic and stability at high temperature can be improved.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: October 8, 2024
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Kwanwook Song, Joonghan Kum, Seongchul Lee, Han Young Choi
  • Patent number: 12113175
    Abstract: The present application relates to an electrochemical cell comprising a nitrile-based solvent based electrolyte, wherein the electrochemical cell includes an electrolyte salt that comprises NaClO4, and the electrolyte salt has a maximum electrolyte conductivity at a discharge state Molar concentration greater than 1.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: October 8, 2024
    Assignee: BROADBIT BATTERIES OY
    Inventors: Andras Kovacs, Tapani Alasaarela, David Lloyd, David Brown
  • Patent number: 12107227
    Abstract: This application provides a nonaqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolyte includes a nonaqueous solvent, a lithium salt, and an additive. The nonaqueous solvent includes a carbonate solvent and a high oxidation potential solvent, and the additive is a fluorinated cyclic carbonate. The carbonate solvent is a linear carbonate, or a mixture of linear carbonate and cyclic carbonate, the high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II, and the fluorinated cyclic carbonate is selected from compounds represented by formula III. This application can not only improve electrochemical performance of the lithium-ion battery under high temperature and high voltage and improve safety performance such as overcharge safety and hot box safety of the lithium-ion battery, but also ensure that the lithium-ion battery has some kinetic performance.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: October 1, 2024
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Chenghua Fu, Peipei Chen, Junmin Feng
  • Patent number: 12107269
    Abstract: A sulfur-carbon composite including a porous carbon material; a coating layer on a surface of the porous carbon material, the coating layer including a compound with electrolyte solution impregnation property; and sulfur, a method for preparing the same, and a positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same are disclosed.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: October 1, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Soohyun Kim, Kwonnam Sohn
  • Patent number: 12107211
    Abstract: Embodiments described herein relate generally to electrochemical cells including a selectively permeable membrane and systems and methods for manufacturing the same. In some embodiments, the selectively permeable membrane can include a solid-state electrolyte material. In some embodiments, electrochemical cells can include a cathode disposed on a cathode current collector, an anode disposed on an anode current collector, and the selectively permeable membrane disposed therebetween. In some embodiments, the cathode and/or anode can include a slurry of an active material and a conductive material in a liquid electrolyte. In some embodiments, a catholyte can be different from an anolyte. In some embodiments, the catholyte can be optimized to improve the redox electrochemistry of the cathode and the anolyte can be optimized to improve the redox electrochemistry of the anode. In some embodiments, the selectively permeable membrane can be configured to isolate the catholyte from the anolyte.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: October 1, 2024
    Assignee: 24M Technologies, Inc.
    Inventors: Junzheng Chen, Naoki Ota, Jeffry Disko, Yuki Kusachi
  • Patent number: 12100817
    Abstract: This application provides a method for capacity recovery of lithium-ion secondary battery. The method includes the following steps: (1) providing a capacity-degraded lithium-ion battery; (2) providing a capacity recovery agent, the capacity recovery agent including a lithium iodide and an organic solvent, and the organic solvent being used to dissolve the lithium iodide; (3) injecting the capacity recovery agent into the capacity-degraded lithium-ion battery; (4) enabling the capacity recovery agent to react inside the lithium-ion battery; and (5) pouring out the liquid mixture inside the reacted lithium-ion battery and injecting an electrolyte into the lithium-ion battery.
    Type: Grant
    Filed: January 18, 2024
    Date of Patent: September 24, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Longfei Yang, Limei Yang
  • Patent number: 12100838
    Abstract: An aspect of the present invention is an energy storage device including an electrode assembly that has a negative electrode and a positive electrode, where the negative electrode contains a negative electrode substrate and a negative active material, and has a negative active material layer disposed in an unpressed shape along at least one surface of the negative electrode substrate, the negative active material includes solid graphite particles as a main component, and the solid graphite particles have an aspect ratio of 1 or more and 5 or less.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: September 24, 2024
    Assignee: GS Yuasa International Ltd.
    Inventors: Kenta Ogi, Fumiya Nakano, Ryosuke Shimokawa, Shota Ito, Masaki Masuda, Taro Yamafuku, Kei Kumabayashi, Akihiko Miyazaki
  • Patent number: 12095095
    Abstract: Systems and methods are provided for a reaction barrier between an electrode active material and a current collector. An electrode may comprise an active material, a metal foil, and a polymer. The polymer (such as polyamide-imide (PAI)) may be configured to provide a carbonized barrier between the active material and the metal foil after pyrolysis.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: September 17, 2024
    Assignee: ENEVATE CORPORATION
    Inventors: Benjamin Yong Park, Rahul R. Kamath, Fred Bonhomme
  • Patent number: 12095071
    Abstract: The electrode manufacturing system comprises a cutting device. The cutting device cuts an electrode material along one direction of the electrode material to manufacture electrodes. The electrode material comprises first sections and a second section. The first section includes an active material doped with alkali metal, and extends in the one direction. The second section is located between two adjacent first sections of the first sections. In the second section, the active material doped with alkali metal is absent. The cutting device cuts the second section.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: September 17, 2024
    Assignee: MUSASHI ENERGY SOLUTIONS CO., LTD.
    Inventors: Hiroki Yakushiji, Masaya Naoi, Kenji Kojima