Patents Examined by John S Medley
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Patent number: 12218375Abstract: An energy storage apparatus includes: an energy storage device including a case in which a joining portion is formed; and a support member which is arranged so as to extend in an elongated shape along the joining portion at a position outside the case and along the joining portion in a side surface portion of the case, and supports the side surface portion.Type: GrantFiled: June 20, 2019Date of Patent: February 4, 2025Assignee: GS YUASA INTERNATIONAL LTD.Inventors: Masamitsu Tononishi, Makoto Yoda
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Patent number: 12183933Abstract: A cylindrical battery in which an electrode assembly is housed in a cylindrical can includes a cap assembly covering an upper opening of the cylindrical can; and a gasket disposed in a space between the cylindrical can and the cap assembly. The gasket is disposed on a crimping part formed by processing an end part of the cylindrical can to be bent, and an exposed part of the gasket protruded outside from a space between the cylindrical can and the cap assembly covers a trimming part of the cylindrical can.Type: GrantFiled: August 19, 2019Date of Patent: December 31, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Kwan Hong Bae, Chan Woo Park, Yeon Kyong Wang, Jin Seop Kwak
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Patent number: 12183896Abstract: The present disclosure relates to a solid electrolyte membrane for an all-solid-state battery and a battery including the same. The battery may include lithium metal as a negative electrode active material. The solid-electrolyte membrane provides an effect of inhibiting growth of lithium dendrite by ionizing lithium deposited as metal. Therefore, when using lithium metal as a negative electrode in the all-solid-state battery including the solid electrolyte membrane, there is provided an effect of delaying and/or inhibiting growth of lithium dendrite. Thus, it is possible to effectively prevent an electrical short-circuit caused by growth of lithium dendrite.Type: GrantFiled: January 10, 2020Date of Patent: December 31, 2024Assignee: LG Energy Solution, Ltd.Inventors: Jung-Pil Lee, Eun-Bee Kim, Hyo-Sik Kim, Ji-Hoon Ryu, Seung-He Woo, Suk-Woo Lee
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Patent number: 12176547Abstract: A catalyst layer for polymer electrolyte fuel cells that improves drainage or gas diffusion, reduces or prevents the occurrence of cracking in a catalyst layer, enhances catalyst utilization efficiency, exerts high output power and high energy conversion efficiency, and has high durability, and also provides a membrane-electrode assembly and a polymer electrolyte fuel cell using the catalyst layer. The catalyst layer for polymer electrolyte fuel cells contains a catalyst, carbon particles, a polymer electrolyte, and a fibrous material. In the catalyst layer, the carbon particles carry the catalyst1. The catalyst layer for polymer electrolyte fuel cells has voids. The percentage of frequencies of the voids having a cross-sectional area of 10,000 nm2 or more is 13% or more and 20% or less among the voids observed in a thickness-direction cross section of the catalyst layer for polymer electrolyte fuel cells perpendicular to the surface thereof.Type: GrantFiled: September 17, 2021Date of Patent: December 24, 2024Assignee: TOPPAN PRINTING CO., LTD.Inventors: Hiroaki Koyama, Madoka Ozawa
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Patent number: 12176530Abstract: A positive electrode plate that has a positive electrode active material layer formed on a positive electrode core, wherein the positive electrode core has, on an edge side, a thick portion which has a thickness that is greater than the thickness of a portion of the positive electrode core that has the positive electrode active material layer formed on both sides, and the positive electrode plate has a first region that extends into the thick portion from the portion of the positive electrode core that has the positive electrode active material layer formed on both sides and a second region that is positioned outside the first region in the thick portion. The average maximum diameter of the metal crystal grains that compose the first region is smaller than those of the second region.Type: GrantFiled: December 24, 2019Date of Patent: December 24, 2024Assignee: SANYO Electric Co., Ltd.Inventors: Kazuaki Tamura, Yoshifumi Magari, Atsutoshi Ako, Akira Nishida, Kentaro Tsukamoto, Tomoyuki Yamada
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Patent number: 12176490Abstract: An electrochemical device including an anode having an anode current collector and a skeleton layer, the skeleton layer being disposed in an central region on the anode current collector, and a region, not covered by the skeleton layer, on the anode current collector being provided with an insulation layer; a cathode; and an electrolyte including about 1 wt % to about 40 wt % of a sulfone compound, about 1 wt % to about 40 wt % of a phosphorus compound and about 1 wt % to about 70 wt % of a fluoroether compound, based on the total weight of the electrolyte. The electrochemical device has superior cycle performance and safety performance.Type: GrantFiled: June 29, 2021Date of Patent: December 24, 2024Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Qian Wen, Bin Wang, Jianming Zheng, Shuai Xu
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Patent number: 12170374Abstract: A secondary battery includes: a solid electrolyte layer which contains a tantalum oxide as a solid electrolyte; a positive-electrode active material layer which is disposed on an upper surface of the solid electrolyte layer and contains a nickel hydroxide (Ni(OH)2) as a positive-electrode active material; and a negative-electrode active material layer disposed on a lower surface of the solid electrolyte layer so as to be opposite to the positive-electrode active material layer and containing a titanium oxide (TiOx) or a titanium oxide (TiOx) and a silicon oxide (SiOx) as a negative-electrode active material. There is provided a secondary battery capable of improving electricity storage performance by improving a self-discharge.Type: GrantFiled: July 23, 2021Date of Patent: December 17, 2024Assignee: Kabushiki Kaisha Nihon MicronicsInventors: Daisuke Hasegawa, Kazuyuki Tsunokuni, Tomokazu Saito, Taku Higuti
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Patent number: 12166215Abstract: A packaging structure, including an accommodation portion and a sealing portion. The accommodation portion includes a first surface and a second surface. The first surface and the second surface are disposed opposite to each other in a thickness direction of the packaging structure. The sealing portion is disposed on a side of the accommodation portion, and the sealing portion is parallel to the first surface. The sealing portion protrudes outward from the side of the accommodation portion in a width direction of the packaging structure. In the packaging structure, the sealing portion is disposed parallel to the first surface, and the sealing portion protrudes outward from the side of the accommodation portion.Type: GrantFiled: June 29, 2021Date of Patent: December 10, 2024Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventor: Ying Liu
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Patent number: 12159997Abstract: A solid battery that includes at least one battery constituent unit including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer along a laminating direction thereof. At least one of the positive electrode layer and the negative electrode layer includes a plurality of sub-active material layers, and at least two of the plurality of sub-active material layers have active material particles with different average particle sizes from each other.Type: GrantFiled: May 21, 2021Date of Patent: December 3, 2024Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Koichi Nakano
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Patent number: 12159970Abstract: 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: GrantFiled: June 29, 2021Date of Patent: December 3, 2024Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Wenqiang Li, Juan Ma, Chao Tang, Junfei Liu
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Patent number: 12155059Abstract: A secondary battery includes: a first electrode provided with a first collector and a first electrode active material applied on at least one surface of the first collector; and a second electrode provided with a second collector and a second electrode active material applied on at least one surface of the second collector, wherein an uneven coating portion at which the first electrode active material irregularly increases in amount and is applied is provided on at least one of a coating start portion or a coating end portion of the first electrode active material, and an inactive coating portion configured to cover the uneven coating portion is provided on at least one of a coating start portion or a coating end portion of the second electrode active material. A method of manufacturing the secondary battery is also provided.Type: GrantFiled: March 31, 2020Date of Patent: November 26, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Nam Won Kim, Eun Sun Choi, So Ra Lee
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Patent number: 12155065Abstract: A negative electrode material for a lithium-ion secondary battery containing a composite (C) that contains a porous carbon (A) and a Si-containing compound (B). The porous carbon (A) satisfies V1/V0>0.80 and V2/V0<0.10. When a total pore volume at the maximum value of a relative pressure P/P0 is defined as V0 and P0 is a saturated vapor pressure, a cumulative pore volume at a relative pressure P/P0=0.1 is defined as V1, and a cumulative pore volume at a relative pressure P/P0=10?7 is defined as V2 in a nitrogen adsorption test. Further, the porous carbon (A) has a BET specific surface area of 800 m2/g or more, and the Si-containing compound (B) is contained in pores of the porous carbon (A). Also disclosed is a negative electrode sheet including the negative electrode material and a lithium-ion secondary battery including the negative electrode sheet.Type: GrantFiled: May 28, 2021Date of Patent: November 26, 2024Assignee: Group14 Technologies, Inc.Inventors: Takayuki Kurita, Yuji Ito, Hirofumi Inoue
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Patent number: 12148913Abstract: A method of manufacturing an electrode for an all-solid-state battery is performed in a dry manner using first and second rollers. An electrode for an all-solid-state battery having an electrode layer with a desired thickness and a desired density of a mixture material may be manufactured by adjusting conditions of the first and the second rollers. The manufacturing speed may be accelerated, because there is no drying process, so that the efficiency of the manufacturing is improved. The process of thickening an electrode is realized by using the method and the porosity of the electrode for an all-solid-state battery manufactured thereby is excellent.Type: GrantFiled: October 25, 2021Date of Patent: November 19, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Kyung Yup Song, Dae Yang Oh
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Patent number: 12148879Abstract: A method of manufacturing a positive electrode for sulfide-based all-solid-state batteries, including: preparing a slurry, coating the slurry on a current collector, and then drying. The slurry is prepared by a method including the steps of a) mixing a positive electrode active material and a solid electrolyte in a dry state; b) adding a conducting agent to the mixture of step a) and mixing in a dry state; and c) adding a binder and a solvent to the mixture of step b) and mixing in a wet state.Type: GrantFiled: April 28, 2020Date of Patent: November 19, 2024Assignee: LG Energy Solution, Ltd.Inventors: Hye Ri Jung, Lak Young Choi, Hyea Eun Han
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Patent number: 12148949Abstract: A battery, a battery module, a battery pack and an electric device are provided. In some embodiments, the battery includes: a positive electrode, a separator and a negative electrode, wherein the separator includes a base film, a first coating provided on a first surface of the base film, and a second coating provided on a second surface of the base film, the first coating includes a first polar substance, and hydrogen bonds are formed between the first polar substance and a positive binder; hydrogen bonds are formed between the second polar substance and a negative binder and/or a negative active component. In the present disclosure, binding forces between the separator and the positive electrode and the negative electrode may be increased by the hydrogen bonds, thus reducing a cycle expansion rate of a bare cell and improving a high-rate discharge performance and a cycle performance of the battery.Type: GrantFiled: October 3, 2022Date of Patent: November 19, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITEDInventors: Yuping Huang, Mingfeng Lin, Yunjian Ma, Honggang Yu, Yanhui Li, Jianping Zhang, Yu Dai, Yidong Shen
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Patent number: 12136730Abstract: The disclosure provides a modified positive electrode material, a preparation method therefor, and a lithium ion battery. The modified positive electrode material includes a core and a coating layer. The core contains Mn and Ni, the coating layer includes a first oxide coating layer coating on a surface of the core. A first element forming the first oxide coating layer is selected from one or more of a group of Si, Ti, V, Zr, Mo, W, Bi, Nb, and Ru. The first element with a high-valent state can partially enter the surface core structure of the positive electrode material to occupy the sites of manganese ions, and form a chemical bond stronger than a Mn—O. Thus, O and Mn in the core structure are difficult to precipitate, and the coating layer is difficult to fall off in cycle process. Moreover, structural stability of the modified positive electrode material is improved.Type: GrantFiled: November 25, 2021Date of Patent: November 5, 2024Assignees: Microvast Power Systems Co., Ltd., Microvast, .Inc.Inventors: Bryan Yonemoto, Huijie Guo, Wenjuan Liu Mattis
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Patent number: 12136694Abstract: Embodiments of the application disclose a battery. A first current collector in the battery is brought into a contact with a battery housing, so that a part of heat generated by a cell can be directly conducted to the battery housing through the first current collector. The battery includes a battery housing, a first current collector, a separator, and a second current collector. The first current collector, the separator, and the second current collector are stacked and disposed inside the battery housing. The polarities of the first current collector and the second current collector are different. The first current collector is in contact with the battery housing.Type: GrantFiled: September 17, 2021Date of Patent: November 5, 2024Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.Inventor: Jun Chen
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Patent number: 12136695Abstract: A cylindrical secondary battery includes an electrode assembly having a positive electrode/separator/negative electrode structure positioned in a cylindrical battery can. The cylindrical secondary battery comprises: a first insulating layer mounted at the upper end of the electrode assembly and having a first through hole through which the electrode tab penetrates, and a second insulating layer mounted at the upper end of the first insulating layer and having a second through hole formed to align with a central axis of the electrode assembly. A method of manufacturing the cylindrical secondary battery is also provided.Type: GrantFiled: January 30, 2020Date of Patent: November 5, 2024Assignee: LG Energy Solution, Ltd.Inventors: Sung Pil Yoon, Dong Myung Kim, Joo Hwan Sung
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Patent number: 12125613Abstract: A cable for a battery includes a conductive member that extends in a longitudinal direction of the cable, an expansion member spaced with the conductive member, and an insulation member covering the periphery of the conductive member and the expansion member. The insulation member has a through hole. The expansion member is configured to expand and overflow to the outer surface of the insulation member through the through hole when the temperature reaches a threshold.Type: GrantFiled: March 5, 2024Date of Patent: October 22, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITEDInventors: Zhijie Huang, Zhiming Chen, Xin Pan, Xiaoyin Yu, Huimin Miao
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Patent number: 12119447Abstract: An electrochemical apparatus including a positive electrode, a negative electrode, an electrolyte, and a separator. The positive electrode includes a positive electrode current collector and a positive active material layer disposed on the positive current collector. An X-ray photoelectron spectroscopy of the positive active material layer has a peak at 164 eV to 175 eV. The electrolyte has a retention capability of 1.0 g/Ah to 4.0 g/Ah. The electrolyte improves cycle performance, over-discharge storage performance, and safety performance of the electrochemical apparatus.Type: GrantFiled: June 29, 2021Date of Patent: October 15, 2024Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Yanyan Xu, Chunrui Xu, Jianming Zheng