公开(公告)号：EP4462491A1

公开(公告)日：2024-11-13

申请号：EP24165582.8

申请日：2024-03-22

申请人： Samsung SDI Co., Ltd.

发明人： KIM, Seongdae ,  LEE, Jinhyon ,  NAM, Hyun ,  PYUN, Ahram ,  KWON, Ilkyong ,  LEE, Donggeun ,  YOON, Yeonhee

IPC分类号： H01M4/04 ,  H01M4/136 ,  H01M4/1391 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/02

摘要： A method of preparing a dry electrode film, a dry electrode, and a lithium battery are provided. The method includes providing a dry mixture including a dry electrode active material and a dry binder, and processing the dry mixture into a dry electrode film by utilizing a rolling device including a first calender roll and a second calender roll, where the first calender roll has a first rotational speed, and the second calender roll has a second rotational speed, a ratio of the first rotational speed to the second rotational speed is in a range of 1 :greater than 1 to about 1:6, the dry electrode active material includes a first electrode active material and a second electrode active material, and a particle diameter of the first electrode active material is different from a particle diameter of the second electrode active material.

公开(公告)号：EP4460477A2

公开(公告)日：2024-11-13

申请号：EP23703919.3

申请日：2023-01-04

申请人： Tesla, Inc.

发明人： ULVESTAD, Andrew, Phillip ,  GOWDA, Sanketh ,  MEHTA, Vineet Haresh ,  WILSON, Jesse, Steven

IPC分类号： C01G53/00 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

公开(公告)号：EP4456201A1

公开(公告)日：2024-10-30

申请号：EP22911324.6

申请日：2022-12-22

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： HARADA, Maho ,  NAKAYAMA, Takahito

IPC分类号： H01M4/62 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525

摘要： A positive electrode for a secondary battery including a positive electrode current collector, and a positive electrode active material layer supported on the positive electrode current collector. The positive electrode active material layer contains active material particles, a binder, and a thermal decomposable additive. The thermal decomposable additive includes a sulfamic acid. The binder includes at least one selected from the group consisting of a fluorocarbon resin and a hydrogenated nitrile butadiene rubber.

公开(公告)号：EP4456199A1

公开(公告)日：2024-10-30

申请号：EP22910766.9

申请日：2022-11-28

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： SHIRAKAMI, Atsuro ,  OKI, Yukihiro ,  HASEGAWA, Chisaki

IPC分类号： H01M4/62 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525

摘要： A positive electrode for a secondary battery including a positive electrode current collector, and a positive electrode active material layer supported on the positive electrode current collector, in which the positive electrode active material layer contains active material particles, a binder, and an organic phosphorus compound that is solid at room temperature. The organic phosphorus compound is, for example, selected from the group consisting of a phosphonic acid and a phosphonic acid ester each including an alkyl group having 1 to 17 carbon atoms.

公开(公告)号：EP4456182A1

公开(公告)日：2024-10-30

申请号：EP24743644.7

申请日：2024-01-18

申请人： DAIKIN INDUSTRIES, LTD.

发明人： NISHIMURA, Kenta ,  KATO, Taketo ,  YAMADA, Takaya ,  NAGAI, Shota ,  INOUE, Ryo ,  TERADA, Junpei ,  YAMANAKA, Taku

IPC分类号： H01M4/1391 ,  C08F2/44 ,  C08F259/08 ,  C08F261/06 ,  H01G11/06 ,  H01G11/38 ,  H01M4/131 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0562

摘要： The disclosure provides an electrochemical device mixture capable of providing a mixture sheet exhibiting excellent strength and excellent flexibility while containing a small amount of binder, and an electrochemical device mixture sheet, an electrode, and an electrochemical device each containing the electrochemical device mixture. The electrochemical device mixture contains an electrode active material and/or a solid electrolyte; and a binder. The binder contains a tetrafluoroethylene-based polymer composition. the tetrafluoroethylene-based polymer composition contains a tetrafluoroethylene-based polymer and a macromolecular compound containing an ionic group. The binder is contained in an amount of 0.3% by mass or more and 8% by mass or less relative to the electrochemical device mixture.

公开(公告)号：EP4453976A1

公开(公告)日：2024-10-30

申请号：EP22830267.5

申请日：2022-12-09

申请人： Skeleton Technologies GmbH

发明人： SRIMUK, Pattarachai ,  VÄLI, Ronald ,  GUHRENZ, Chris ,  WEINGARTH, Daniel

IPC分类号： H01G11/24 ,  H01G11/46 ,  H01G11/50 ,  H01G11/86 ,  H01M4/131 ,  H01M4/485 ,  H01G11/06 ,  H01M4/1391

公开(公告)号：EP3844317B1

公开(公告)日：2024-10-30

申请号：EP19763051.0

申请日：2019-08-29

发明人： ARESTA, Gianfranco ,  LAUGHMAN, David Michael ,  HAYDEN, Brian Elliott ,  GUERIN, Samuel

IPC分类号： C23C14/08 ,  H01M10/058 ,  H01M10/0562 ,  H01M10/052 ,  H01M4/1391 ,  H01M4/04 ,  C23C14/06 ,  C03C4/18 ,  C23C14/24 ,  C23C14/00 ,  C03C3/064 ,  C03C3/089 ,  C03C3/11 ,  H01M4/134 ,  H01M4/1395

公开(公告)号：EP4451356A1

公开(公告)日：2024-10-23

申请号：EP23169177.5

申请日：2023-04-21

申请人： EMPA Eidgenössische Materialprüfungs- und Forschungsanstalt

发明人： Homann, Gerrit ,  Battaglia, Corsin

IPC分类号： H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/02

摘要： The invention relates to a process for coating electrode surfaces with a cationic polymer, wherein the process comprises at least the steps of: a) Provision of an electrode; b) Dissolution of a cationic polymer according to the following formula I

wherein X - is selected from the group consisting of Cl - , FSI - , TFSI - , TFA - , BETI - , BF 4 - , DFOB - , BOB - , NO 3 - , PO 2 F 2 - ; R 1 , R 2 are independently selected from the group consisting of H, C1-C5 linear or branched alkyl or fluorinated derivatives thereof, and n = 10 - 10.000; in a solvent, wherein the solvent comprises equal to or greater than 30 wt.-% propylene carbonate; c) Coating of at least one electrode surface of the electrode provided in process step a) by deposition of the polymer solution obtained in process step b) to at least a part of the electrode surface; and d) Drying of the coated electrode obtained in process step c). In addition, the invention relates to a coated electrode and a solid electrolyte cell comprising a coated electrode.

公开(公告)号：EP4407714A3

公开(公告)日：2024-10-23

申请号：EP24182464.8

申请日：2020-08-31

申请人： Contemporary Amperex Technology (Hong Kong) Limited

发明人： LIU, Qian ,  HU, Xia ,  LI, Quanguo ,  YE, Yonghuang ,  LI, Wei

IPC分类号： H01M4/13 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/48 ,  H01M4/505 ,  H01M4/525

摘要： This application provides a secondary battery (5) and a preparation method thereof, and a battery module (4), battery pack (1), and apparatus containing a secondary battery (5). The secondary battery (5) includes a positive electrode plate, the positive electrode plate includes a positive electrode current collector and a positive electrode film layer that is disposed on the positive electrode current collector and that includes a positive electrode active material, where the positive electrode active material includes a first material and a second material, the first material contains lithium transition metal oxide, the second material contains lithium transition metal phosphate, the lithium transition metal phosphate includes secondary particles formed by agglomeration of primary particles, and the second material has a lower discharge platform voltage than the first material with respect to a same type of counter electrode.

公开(公告)号：EP3945612B1

公开(公告)日：2024-10-16

申请号：EP21183814.9

申请日：2021-07-05

发明人： Park, Eunjun ,  Kim, Joon-Sup ,  Park, Gwi Ok ,  Kim, Hansu ,  Youn, Donghan ,  Chung, Dong Jae

IPC分类号： H01M4/131 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/48 ,  H01M4/485 ,  H01M4/58 ,  H01M4/62 ,  H01M4/02 ,  H01M10/0525