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Patent Searching and Data


Title:
COBALT-FREE LAYERED POSITIVE ELECTRODE MATERIAL AND METHOD FOR PREPARING SAME, AND LITHIUM-ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/142891
Kind Code:
A1
Abstract:
Provided are a cobalt-free layered positive electrode material and a method for preparing same, and a lithium-ion battery. The method comprises: preparing a layered lithium nickel manganese oxide base material; mixing the layered lithium nickel manganese oxide base material and a coating agent to obtain a first mixed material; performing first sintering treatment on the first mixed material to form a coating layer on the surface of the layered lithium nickel manganese oxide base material, so as to obtain the cobalt-free layered positive electrode material, wherein the coating agent comprises a first coating agent and a second coating agent, the first coating agent comprises a ceramic oxide, and the second coating agent comprises at least one of a phosphate and a silicate.

Inventors:
QIAO QIQI (CN)
JIANG WEIJUN (CN)
XU XINPEI (CN)
SHI ZETAO (CN)
MA JIALI (CN)
Application Number:
PCT/CN2020/076991
Publication Date:
July 22, 2021
Filing Date:
February 27, 2020
Export Citation:
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Assignee:
SVOLT ENERGY TECH CO LTD (CN)
International Classes:
H01M4/525; H01M4/505
Foreign References:
CN107910542A2018-04-13
CN107910542A2018-04-13
CN102569775A2012-07-11
CN1416189A2003-05-07
CN108598400A2018-09-28
JP2014022294A2014-02-03
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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