Title:
METHOD FOR TREATMENT OF WASTE LITHIUM BATTERY POSITIVE ELECTRODE SHEET AND APPLICATION
Document Type and Number:
WIPO Patent Application WO/2024/031790
Kind Code:
A1
Abstract:
Disclosed in the present invention are a method for treatment of a waste lithium battery positive electrode sheet and an application. The method comprises the following steps: (1) crushing and screening a waste lithium battery positive electrode sheet to obtain an oversize material and an undersize material, wherein the oversize material is a positive electrode sheet scrap, and the undersize material is positive electrode material powder; (2) baking, passivating, alkali washing, screening, dehydrating and drying the positive electrode sheet scrap to obtain an aluminum foil scrap and a positive electrode material washing liquid; and (3) carrying out pressure filtration on the positive electrode material washing liquid, and preparing a slurry and leaching. The method can separate aluminum foils and positive electrode materials in waste lithium battery positive electrode sheets for reuse.
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Inventors:
ZHANG LINSHAO (CN)
LI CHANGDONG (CN)
RUAN DINGSHAN (CN)
ZHOU YOU (CN)
LI QIANG (CN)
GAO MING (CN)
LI CHANGDONG (CN)
RUAN DINGSHAN (CN)
ZHOU YOU (CN)
LI QIANG (CN)
GAO MING (CN)
Application Number:
PCT/CN2022/120359
Publication Date:
February 15, 2024
Filing Date:
September 21, 2022
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
International Classes:
H01M10/54
Foreign References:
| JP2014199776A | 2014-10-23 | |||
| CN112397803A | 2021-02-23 | |||
| JP2014199777A | 2014-10-23 | |||
| CN105098280A | 2015-11-25 | |||
| CN103261455A | 2013-08-21 | |||
| CN108711651A | 2018-10-26 | |||
| CN110289456A | 2019-09-27 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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