Title:
LITHIUM ION BATTERY NON-AQUEOUS ELECTROLYTE AND LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/095772
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of new energy, and in particular relates to a lithium ion battery non-aqueous electrolyte and a lithium ion battery. The lithium ion battery non-aqueous electrolyte comprises a non-aqueous organic solvent, a lithium salt, and a spiro compound as represented by structural formula (1), wherein the compound as represented by structural formula (1) has a sulfonate additive to improve the performance characteristic of high temperature storage of the battery, and the compound further has a sulfate additive to improve the high temperature cycling performance of the battery; same is deposited on the surface of the positive electrode to form a passivation film; the X functional group is further cross-linked, so that the coated passivation film is more dense and stable; and the electrochemical performance of the electrode and the storage performance and self-discharge performance of the battery can be effectively improved.
Inventors:
CAO CHAOWEI (CN)
WANG CHI (CN)
CHEN QUN (CN)
HU SHIGUANG (CN)
WANG CHI (CN)
CHEN QUN (CN)
HU SHIGUANG (CN)
Application Number:
PCT/CN2021/126864
Publication Date:
May 12, 2022
Filing Date:
October 28, 2021
Export Citation:
Assignee:
SHENZHEN CAPCHEM TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0567; C07D497/10; H01M10/0525
Foreign References:
| CN104466246A | 2015-03-25 | |||
| CN106252710A | 2016-12-21 | |||
| CN110444804A | 2019-11-12 | |||
| CN111048831A | 2020-04-21 | |||
| CN109627256A | 2019-04-16 | |||
| CN109950621A | 2019-06-28 | |||
| JP2000123867A | 2000-04-28 |
Attorney, Agent or Firm:
SHENZHEN ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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