公开(公告)号：EP4336598A1

公开(公告)日：2024-03-13

申请号：EP22884102.9

申请日：2022-10-21

申请人： LG Energy Solution, Ltd.

发明人： LEE, Sangmin ,  KWON, Yohan

IPC分类号： H01M4/62 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/48 ,  H01M4/38 ,  H01M4/58 ,  H01M10/052 ,  C01B32/174 ,  H01M4/02

摘要： The present invention relates to a negative electrode pre-dispersion solution, a negative electrode composition comprising the same, a negative electrode for a lithium secondary battery comprising a negative electrode composition, a lithium secondary battery comprising a negative electrode, and a preparation method of a negative electrode composition.

公开(公告)号：EP4335825A1

公开(公告)日：2024-03-13

申请号：EP23194664.1

申请日：2023-08-31

申请人： Guizhou Zhenhua E-CHEM Inc.

发明人： ZHOU, Chaoyi ,  XIANG, Qianxin ,  WU, Yang ,  LI, Jinkai ,  WU, Xingping ,  GU, Ran

IPC分类号： C01G53/00 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/054

摘要： The present disclosure is in the technical field of sodium ion batteries, and particularly relates to a cathode material for a sodium ion battery having a coating structure and a preparation method and use thereof. The general chemical formula of the cathode material for a sodium ion battery having a coating structure is Na 1 + a Ni x Mn y Fe z A m B n O 2 , where -0.35≤ a ≤ 0.20, 0.08 x ≤ 0.5, 0.05 y ≤ 0.48, 0.03

公开(公告)号：EP4333127A1

公开(公告)日：2024-03-06

申请号：EP22876987.3

申请日：2022-09-30

申请人： LG Energy Solution, Ltd.

发明人： KIM, Young Jae ,  LEE, Jaewook

IPC分类号： H01M4/62 ,  H01M4/1395 ,  H01M4/1391 ,  H01M4/134 ,  H01M4/131 ,  H01M4/38 ,  H01M4/48 ,  H01M10/052 ,  H01M4/02

摘要： The present application relates to a negative electrode pre-dispersion, a negative electrode composition including the same, a negative electrode for a lithium secondary battery, including the negative electrode composition, a lithium secondary battery including the negative electrode, and a method for preparing a negative electrode composition.

公开(公告)号：EP4328997A1

公开(公告)日：2024-02-28

申请号：EP22791697.0

申请日：2022-04-18

申请人： Toyo Ink SC Holdings Co., Ltd. ,  TOYOCOLOR CO., LTD.

发明人： AOTANI, Yu

IPC分类号： H01M4/131 ,  H01M4/1391 ,  H01M4/62

摘要： Provided is a conductive material dispersion containing: a conductive material; a polymer including aliphatic hydrocarbon structural units and nitrile group-containing structural units; and a dispersion medium, the conductive material being at least one selected from a group consisting of carbon nanotubes and acetylene black. The Mooney viscosity (ML 1+4 at 100°C) of the polymer is 20-80 inclusive. The aliphatic hydrocarbon structural units include alkylene structural units, and the content of the aliphatic hydrocarbon structural units relative to the mass of the polymer is at least 40 mass% but less than 85 mass%. The content of the nitrile group-containing structural units relative to the mass of the polymer is 15-50 mass% inclusive. The product (X×Y) of the complex elastic modulus X (Pa) and the phase angle Y (°) of the conductive material dispersion according to dynamic viscoelasticity measurement is 30-1,700 inclusive.

公开(公告)号：EP4322250A1

公开(公告)日：2024-02-14

申请号：EP22911851.8

申请日：2022-12-20

申请人： LG Energy Solution, Ltd.

发明人： LEE, Ilha ,  JOO, Mun Kyu ,  KIM, Sarah ,  JEON, Seoyoung ,  KWON, Yohan ,  CHAE, Jonghyun

IPC分类号： H01M4/1395 ,  H01M4/1391 ,  H01M4/62 ,  H01M4/04 ,  H01M10/052 ,  H01M4/02

摘要： The present application relates to a pre-lithiation method of a negative electrode for a lithium secondary battery, a negative electrode for a lithium secondary battery, and a lithium secondary battery including the negative electrode.

公开(公告)号：EP4320650A1

公开(公告)日：2024-02-14

申请号：EP22715933.2

申请日：2022-03-24

申请人： Livent USA Corp.

发明人： XIA, Jian ,  FITCH, Kenneth Brian ,  YAKOVLEVA, Marina ,  BLACK, Rebecca N.

IPC分类号： H01M4/04 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/1397 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

公开(公告)号：EP4312282A1

公开(公告)日：2024-01-31

申请号：EP23178150.1

申请日：2023-06-08

申请人： VOLKSWAGEN AG

发明人： Kosfeld, Malte ,  Lehmberg, Annegret

IPC分类号： H01M4/00 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/21 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62

摘要： Die Erfindung betrifft ein Verfahren zur Herstellung einer Lithiumbatterie-Elektrode aus einem Lithiumbatterie-Elektrodenmaterial, wobei während der Herstellung der Lithiumbatterie-Elektrode der Wassergehalt des Lithiumbatterie-Elektrodenmaterials kontinuierlich oder quasikontinuierlich, kontaktfrei und zerstörungsfrei ermittelt wird, bereitgestellt. Das Verfahren umfasst das kontinuierliche oder quasi-kontinuierliche, kontaktfreie Erfassen eines für einen Wassergehalt des Elektrodenmaterials indikativen Messwerts mit einem Sekundär-Analyseverfahren, wobei das Sekundär-Analyseverfahren die Nahinfrarot-Spektroskopie (NIRS) ist. Danach erfolgt ein Ermitteln des Wassergehalts des Elektrodenmaterials durch Abgleich des erfassten Messwerts mit einer Kalibrationskurve, wobei die Kalibrationskurve den Wassergehalt in Abhängigkeit von dem Messwert angibt und mittels eines Primär-Analyseverfahrens bestimmt wurde.

公开(公告)号：EP4310937A1

公开(公告)日：2024-01-24

申请号：EP23186424.0

申请日：2023-07-19

申请人： Samsung SDI Co., Ltd.

发明人： Pyun, Ahram ,  Yoon, Yeonhee ,  Kim, Sangpil ,  Lee, Jinhyon ,  Kwon, Ilkyong ,  Nam, Hyun ,  Lee, Donggeun

IPC分类号： H01M4/131 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/02

摘要： A dry electrode film, an electrode including the same, and a lithium battery including the electrode, wherein the dry electrode film includes a dry electrode active material and a dry binder, wherein the dry electrode active material includes a first electrode active material and a second electrode active material, and a ratio (d1/d2) of a particle diameter of the first electrode active material (d1) to a particle diameter (d2) of the second electrode active material is greater than 1 and less than 5, and the dry electrode film is a free-standing film.

公开(公告)号：EP3516671B1

公开(公告)日：2024-01-24

申请号：EP17854092.8

申请日：2017-09-25

发明人： DUAN, Xiangfeng ,  HUANG, Yu ,  SUN, Hongtao

IPC分类号： H01G11/04 ,  H01G11/26 ,  H01G11/36 ,  H01G11/46 ,  C01B32/194 ,  H01G11/70 ,  H01G11/86 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/13 ,  H01M4/139 ,  H01M4/38 ,  H01M4/48 ,  H01M4/485 ,  H01M4/525 ,  H01M4/131 ,  H01M4/505 ,  H01M4/58 ,  H01M4/62 ,  H01M4/02

公开(公告)号：EP4300614A3

公开(公告)日：2024-01-10

申请号：EP23178652.6

申请日：2023-06-12

申请人： Samsung Electronics Co., Ltd.

发明人： KIM, Jusik ,  KIM, Sewon ,  KIM, Yongsu ,  KIM, Ryounghee ,  LEE, Myungjin

IPC分类号： H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/36 ,  H01M4/485 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/02

摘要： An all-solid-state battery including a cathode including a cathode active material; an anode including an anode current collector, a first anode active material layer, and a second anode active material layer; and a solid electrolyte arranged between the cathode and the anode, wherein the first anode active material layer is arranged adjacent to the solid electrolyte and comprises M 1 -M 2 O x , Li-M 1 -M 2 O x , or a combination thereof, wherein the first metal M 1 and the second metal M 2 are each independently at least one element that reacts with lithium to form a lithium alloy or compound, x>0, the second anode active material layer is arranged between the anode current collector and the first anode active material layer and includes a second anode active material, and the second anode active material includes a carbon-containing anode active material, or a carbon-containing anode active material, and at least one of a metallic or metalloid anode active material.