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公开(公告)号：US20240363905A1
公开(公告)日：2024-10-31
申请号：US18763137
申请日：2024-07-03
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kazuhei NARITA , Ryota TAJIMA
IPC: H01M10/0569 , H01G11/52 , H01G11/60 , H01G11/62 , H01G11/68 , H01G11/78 , H01M4/66 , H01M10/052 , H01M10/0568 , H01M50/119 , H01M50/121 , H01M50/129 , H01M50/136 , H01M50/178 , H01M50/429 , H01M50/44 , H01M50/55 , H01M50/557
CPC classification number: H01M10/0569 , H01G11/52 , H01G11/60 , H01G11/62 , H01G11/68 , H01G11/78 , H01M4/661 , H01M4/662 , H01M10/052 , H01M10/0568 , H01M50/136 , H01M50/178 , H01M50/4295 , H01M50/44 , H01M50/55 , H01M50/557 , H01M50/119 , H01M50/121 , H01M50/129 , H01M2220/30 , Y02E60/13
Abstract: Provided is a power storage device whose charging and discharging characteristics are unlikely to be degraded by heat treatment or a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolyte, and an exterior body. The separator is positioned between the positive electrode and the negative electrode and includes polyphenylene sulfide or cellulosic fiber. The electrolyte includes propylene carbonate, ethylene carbonate, and vinylene carbonate, lithium hexafluorophosphate, and lithium bis(pentafluoroethanesulfonyl)amide. A concentration of lithium hexafluorophosphate with respect to the electrolyte is more than or equal to 0.01 wt % and less than or equal to 1.9 wt % in a weight ratio.
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公开(公告)号：US12126025B2
公开(公告)日：2024-10-22
申请号：US16978133
申请日：2020-01-31
Applicant: LG CHEM, LTD.
Inventor： Hyunwoong Yun , Hoejin Hah , Jong Keon Yoon
IPC: H01M4/62 , H01M4/13 , H01M4/139 , H01M4/36 , H01M4/66 , H01M10/0525 , H01M10/0585 , H01M50/403 , H01M50/446 , H01M50/451 , H01M50/46 , H01M4/02
CPC classification number: H01M4/623 , H01M4/13 , H01M4/139 , H01M4/364 , H01M4/661 , H01M4/663 , H01M10/0525 , H01M10/0585 , H01M50/446 , H01M50/451 , H01M50/46 , H01M2004/027 , H01M2004/028 , H01M4/625 , H01M50/403
Abstract: An electrode assembly for a lithium secondary battery including an electrode, an insulation film, a separator and a counter electrode, wherein the insulation film is formed on an entire surface of one or both sides of the electrode, and the insulation film is an organic-inorganic mixed film including inorganic particles and a binder polymer. Also discussed is a manufacturing method thereof, and a lithium secondary battery including the same.
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3.发明公开公开(公告)号：US20240347695A1
公开(公告)日：2024-10-17
申请号：US18756686
申请日：2024-06-27
Applicant: LG Energy Solution, Ltd.
Inventor： Sung Chul Park , Ung Ju Lee , Koo Seung Chung
CPC classification number: H01M4/139 , H01M4/366 , H01M4/623 , H01M4/661 , H01M10/0525 , H01M2004/021
Abstract: The present invention provides an electrode for a lithium secondary battery, which includes an electrode current collector, an electrode active material layer formed on the electrode current collector, and an insulating layer formed on the electrode current collector and overlapping the electrode active material layer in a partial region. Here, when the thickness of the electrode active material layer in the region in which the electrode active material layer and insulating layer do not overlap is d1, and the thickness of the insulating layer in the region in which the electrode active material layer and insulating layer do not overlap is d2, d2/d1 is 0.02 to 0.4.
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4.发明公开公开(公告)号：US20240339612A1
公开(公告)日：2024-10-10
申请号：US18664902
申请日：2024-05-15
Applicant: Ningde Amperex Technology Limited
Inventor： Mingju LIU , Yajie LI , Qingwen ZHANG
CPC classification number: H01M4/583 , H01M4/0404 , H01M4/0471 , H01M4/1393 , H01M4/622 , H01M4/625 , H01M4/661 , H01M2004/021 , H01M2004/027
Abstract: An electrochemical apparatus includes an electrode, the electrode includes a current collector and an active material layer disposed on at least one surface of the current collector, where when the active material layer is subjected to thermogravimetric analysis at a temperature rise rate of 10° C./min in an inert atmosphere, a result of the thermogravimetric analysis shows that a mass change of the active material layer at 200° C. to 350° C. is 0% to 0.2%.
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公开(公告)号：US20240332636A1
公开(公告)日：2024-10-03
申请号：US18604474
申请日：2024-03-13
Applicant: FDK CORPORATION
Inventor： Satoshi Murase , Soma Suzuki , Tomomichi Yamaguchi , Taketoshi Banno , Takeshi Ito
IPC: H01M10/28 , H01M4/24 , H01M4/42 , H01M4/66 , H01M50/44 , H01M50/454 , H01M50/457 , H01M50/489 , H01M4/02
CPC classification number: H01M10/286 , H01M4/244 , H01M4/42 , H01M4/661 , H01M50/44 , H01M50/454 , H01M50/457 , H01M50/489 , H01M2004/027
Abstract: A battery includes an outer can and an electrode group housed in the outer can together with an alkaline electrolyte solution. The electrode group includes a positive electrode and a negative electrode stacked together with a separator therebetween. The negative electrode includes a negative electrode core and a negative electrode mixture retained on the negative electrode core. The negative electrode mixture contains at least one of zinc, a zinc alloy, or a zinc-containing compound. The negative electrode core is composed of a nonporous copper foil. The separator is a composite including a nonwoven fabric and a microporous film stacked together in the thickness direction. A value of A/B is 0.28 or more and 0.53 or less, where A is the total thickness of the microporous film, and B is the total thickness of the nonwoven fabric.
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Patent Agency Ranking
公开(公告)号：US20240326170A1
公开(公告)日：2024-10-03
申请号：US18661765
申请日：2024-05-13
Applicant: TRUMPF (China) Co., LTD.
Inventor： Weiyu Wang , Zekai Hou , Franz Lehleuter , Yuan Liu , Lu Zhang
IPC: B23K26/26 , B23K26/32 , B23K101/36 , H01M4/04 , H01M4/139 , H01M4/66 , H01M10/0525
CPC classification number: B23K26/26 , B23K26/32 , H01M4/0471 , H01M4/139 , H01M4/661 , H01M4/667 , H01M10/0525 , B23K2101/36
Abstract: A welding seam is formed by welding a multi-layer aluminum foil stack of a current collector of a battery and a part by a remelting step, in which a welding seam edge of the welding seam is remelted by a laser beam with a heat input that is lower than the heat input for forming the welding scam.
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公开(公告)号：US20240322371A1
公开(公告)日：2024-09-26
申请号：US18476937
申请日：2023-09-28
Applicant: Samsung SDI Co., Ltd.
Inventor： Hyunsik Woo , Jongseok Moon , Kanghee Lee , Woojin Bae , Heemin Kim , Jongseok Park , Jinhwan Park
IPC: H01M50/451 , H01M4/13 , H01M4/66 , H01M10/052 , H01M10/0565 , H01M50/417 , H01M50/429 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/489
CPC classification number: H01M50/451 , H01M4/13 , H01M4/661 , H01M10/052 , H01M10/0565 , H01M50/417 , H01M50/4295 , H01M50/434 , H01M50/443 , H01M50/446 , H01M50/489 , H01M2004/021 , H01M2004/027 , H01M2004/028 , H01M2300/0025 , H01M2300/0085
Abstract: A lithium metal battery including: an anode current collector; a cathode; and a separator between the anode current collector and the cathode, wherein the lithium metal battery may include an anode active material layer between the anode current collector and the separator or may not include (e.g., may exclude or be free of) the anode active material layer, and the separator may include a porous substrate and a ceramic coating layer disposed on at least one side of the porous substrate, wherein the ceramic coating layer may be placed so as to face the anode current collector, and pores in the porous substrate may contain a gel-type or kind polymer electrolyte.
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8.发明公开公开(公告)号：US20240322190A1
公开(公告)日：2024-09-26
申请号：US18438714
申请日：2024-02-12
Applicant: SOCPRA SCIENCES ET GÉNIE S.E.C.
Inventor： Arthur DUPUY , Abderraouf BOUCHERIF , Richard ARES
CPC classification number: H01M4/80 , H01M4/661 , H01M4/667 , H01M2004/021 , H01M2004/027
Abstract: An anode for batteries having a columnar nanostructured porous germanium for its active material. This nanostructured porous germanium can be produced with the novel etching method disclosed herein. Such anode can be easily mass-produced with the presented method that requires pre-existing, affordable and easy to integrate equipment. In some embodiments, the produced columnar porous germanium can be directly used as a monolithic anode after its etching nanostructuration for on-chip anodes for example, where the anisotropic nanostructured germanium acts as the active material and where the remaining bulk germanium layer act as the current collector. This can be easily implemented in lithium batteries. The cycle life of such anodes could be extended by a factor of 26 and 1.8 for high rate and high energy applications, respectively.
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公开(公告)号：US20240322187A1
公开(公告)日：2024-09-26
申请号：US18407959
申请日：2024-01-09
Inventor： Jongseok Park , Jongseok Moon , Kanghee Lee , Woojin Bae , Heemin Kim , Hyunsik Woo , Jinhwan Park , Hongkyung Lee , Jiyeon Seo
IPC: H01M4/66 , H01M4/13 , H01M10/052
CPC classification number: H01M4/667 , H01M4/13 , H01M4/661 , H01M4/663 , H01M4/668 , H01M10/052 , H01M2004/021 , H01M2004/027
Abstract: Provided are an anode and a lithium battery including the same. The anode includes an anode current collector and a protective layer on one surface of the anode current collector, and an anode interlayer between the anode current collector and the protective layer, wherein the protective layer includes a first polymer and a second polymer, wherein the first polymer includes a high-strength polymer, and the second polymer includes an ion-conductive polymer, and the anode interlayer includes a mixture of first particles and second particles, wherein the first particles contain a lithiophilic metal, and the second particles contain a carbon element.
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公开(公告)号：US20240322112A1
公开(公告)日：2024-09-26
申请号：US18485162
申请日：2023-10-11
Applicant: Samsung SDI Co., Ltd.
Inventor： Hyun Nam , Jinhyon Lee , Ahram Pyun , Ilkyong Kwon , Yeonhee Yoon , Donggeun Lee , Seongdae Kim , Seunguk Kwon , Youmin Bang , Jongsup Choi
IPC: H01M4/04 , H01M4/131 , H01M4/1391 , H01M4/62 , H01M4/66 , H01M10/0525
CPC classification number: H01M4/0435 , H01M4/131 , H01M4/1391 , H01M4/623 , H01M4/661 , H01M4/663 , H01M4/667 , H01M10/0525
Abstract: A method of preparing a dry electrode film, the dry electrode film, a dry electrode including the dry electrode film, and a lithium battery including the dry electrode film is provided. The method includes providing frozen first dry binder particles, pulverizing the frozen first dry binder particles to prepare second dry binder particles, mixing a dry electrode active material and the second dry binder particles to prepare a dry electrode mixture, and processing the dry electrode mixture into a dry electrode film including a dry binder through a rolling device including a calender roll. A second particle diameter of the second dry binder particles is less than a first particle diameter of the frozen first dry binder particles.
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