POSITIVE ELECTRODE ACTIVE MATERIAL COMPOSITION, AQUEOUS POSITIVE ELECTRODE SLURRY, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE

Title:

POSITIVE ELECTRODE ACTIVE MATERIAL COMPOSITION, AQUEOUS POSITIVE ELECTRODE SLURRY, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE

Document Type and Number:

WIPO Patent Application WO/2023/142670

Kind Code:

A1

Abstract:

The present application discloses a positive electrode active material composition, an aqueous positive electrode slurry, a positive electrode sheet, a secondary battery, and an electric device. The positive electrode active material composition comprises a first positive electrode active material, a second positive electrode active material, and a third positive electrode active material. The volume mean particle diameter Dv50 of the first positive electrode active material is A1 μm, wherein 0.2≤A1≤0.8; the volume mean particle diameter Dv50 of the second positive electrode active material is A2 μm, wherein 1.0≤A2≤2.5; and the volume mean particle diameter Dv50 of the third positive electrode active material is A3 μm, wherein 3.0≤A3≤6.0. According to the present application, the positive electrode sheet can have relatively high compaction density and also have relatively low moisture content.

More Like This:

WO/2023/074245	BINDER FOR POSITIVE ELECTRODES, POSITIVE ELECTRODE MIXTURE, POSITIVE ELECTRODE, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
WO/1996/024557	COBALTOUS OXIDE CONTAINING METALLIC COBALT, METHODS FOR PRODUCING THE SAME AND USE THEREOF
WO/2014/103755	NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Inventors:

PEI HAILE (CN)
CHENG CONG (CN)
CHEN JUNGUANG (CN)
ZHANG SHENGWU (CN)
WANG XINGHUI (CN)
WU YANYING (CN)

Application Number:

PCT/CN2022/135788

Publication Date:

August 03, 2023

Filing Date:

December 01, 2022

Export Citation:

Click for automatic bibliography generation Help

Assignee:

CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)

International Classes:

H01M4/62; H01M4/13; H01M10/0525

Foreign References:

CN103367738A	2013-10-23
CN107275574A	2017-10-20
CN108431998A	2018-08-21
CN103782417A	2014-05-07
CN109301244A	2019-02-01
CN103050694A	2013-04-17
JP2006210003A	2006-08-10

Attorney, Agent or Firm:

BEIJING EAST IP LTD. (CN)

Download PDF:

View/Download PDF PDF Help

Previous Patent: POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, AND SECONDARY BATTERY AND ELECTRIC ...

Next Patent: CU-AL-NI-CO-BASED CATALYST, AND PREPARATION METHOD THEREFOR AND USE THEREOF