Title:
LITHIUM-ION BATTERY POSITIVE ELECTRODE AND PREPARATION METHOD THEREFOR AND METHOD FOR PREPARING LITHIUM-ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/000861
Kind Code:
A1
Abstract:
Disclosed are a lithium-ion battery positive electrode and a preparation method therefor, and a method for preparing a lithium-ion battery, the lithium-ion battery positive electrode comprising a positive electrode material, PVDF, a conductive agent and STOBA, wherein the parts by mass of the positive electrode material, the PVDF, the conductive agent and the STOBA are respectively 95-98 parts, 0.5-0.9 part, 0.8-1.2 parts and 0.2-0.5 part; the positive electrode material is at least one of lithium nickel cobalt manganate, lithium iron phosphate, lithium manganate, lithium vanadium phosphate, and nickel cobalt aluminum ternary materials. A lithium-ion battery prepared by using the positive electrode has the advantages of a good high temperature cycle performance, a low internal resistance and a low self-discharge, and same solves the technical problems of a poor cycle life and a high internal resistance of lithium-ion batteries in high temperature environments in the prior art.
Inventors:
WANG MINBO (CN)
CUI NANA (CN)
CAO HUSHAN (CN)
WU JIANG (CN)
CHEN HUANZHANG (CN)
WANG SHAOPING (CN)
CUI NANA (CN)
CAO HUSHAN (CN)
WU JIANG (CN)
CHEN HUANZHANG (CN)
WANG SHAOPING (CN)
Application Number:
PCT/CN2017/117156
Publication Date:
January 03, 2019
Filing Date:
December 19, 2017
Export Citation:
Assignee:
DYNABAT NEW ENERGY SCIENCE & TECH CO CLD FUJIAN (CN)
International Classes:
H01M4/62; H01M4/1391; H01M4/505
Foreign References:
| CN101212052A | 2008-07-02 | |||
| CN106058265A | 2016-10-26 | |||
| TW200828658A | 2008-07-01 | |||
| CN103050706A | 2013-04-17 | |||
| CN103880821A | 2014-06-25 | |||
| CN102544436A | 2012-07-04 |
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO., LTD., XIAMEN (CN)
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