Title:
CAPACITY RECOVERY METHOD FOR LITHIUM-ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/071735
Kind Code:
A1
Abstract:
The present application provides a capacity recovery method for a lithium-ion secondary battery, comprising the following steps: (1) providing a lithium-ion battery with capacity fading; (2) providing a capacity recovery agent, the capacity recovery agent containing lithium iodide and an organic solvent, and the organic solvent being used for dissolving the lithium iodide; (3) injecting the capacity recovery agent into the lithium-ion battery with capacity fading; (4) enabling the capacity recovery agent to react inside the lithium-ion battery; and (5) pouring out a liquid mixture inside the lithium-ion battery after the reaction, and injecting an electrolyte into the lithium-ion battery.
Inventors:
YANG LONGFEI (CN)
YANG LIMEI (CN)
YANG LIMEI (CN)
Application Number:
PCT/CN2022/124021
Publication Date:
May 04, 2023
Filing Date:
October 09, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/44; H01M10/42
Foreign References:
| CN110400983A | 2019-11-01 | |||
| JP2016126912A | 2016-07-11 | |||
| CN101950819A | 2011-01-19 | |||
| CN112271349A | 2021-01-26 | |||
| CN103004008A | 2013-03-27 |
Attorney, Agent or Firm:
PEKSUNG INTELLECTUAL PROPERTY LTD. (CN)
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