Title:
COMPOSITE POSITIVE-ELECTRODE LITHIUM-SUPPLEMENTING ADDITIVE, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/236843
Kind Code:
A1
Abstract:
Disclosed in the present application are a composite positive-electrode lithium-supplementing additive, and a preparation method therefor and the use thereof. The composite positive-electrode lithium-supplementing additive of the present application comprises a core body and a functional packaging layer covering the core body, wherein the core body comprises a positive-electrode lithium-supplementing material, and the functional packaging layer contains an oxygen-consuming agent. The composite positive-electrode lithium-supplementing additive of the present application can effectively remove active oxygen and inhibit active oxygen from initiating a gas production reaction, such that the gas production amount of a battery containing the composite positive-electrode lithium-supplementing additive of the present application during a charging and discharging process can be inhibited, the safety of the battery is effectively improved, and the lithium-supplementing effect and the processing performance are good. The preparation method for the composite positive-electrode lithium-supplementing additive can ensure that the prepared composite positive-electrode lithium-supplementing additive has a stable structure, stable electrochemical performance and a high efficiency, and the production cost is saved on.
Inventors:
TAN QIQING (CN)
WAN YUANXIN (CN)
KONG LINGYONG (CN)
WAN YUANXIN (CN)
KONG LINGYONG (CN)
Application Number:
PCT/CN2023/097816
Publication Date:
December 14, 2023
Filing Date:
June 01, 2023
Export Citation:
Assignee:
SHENZHEN DYNANONIC INNOVAZONE NEW ENERGY TECH CO LTD (CN)
International Classes:
H01M10/42; H01M4/13; H01M10/0525
Foreign References:
| CN115347253A | 2022-11-15 | |||
| CN113793983A | 2021-12-14 | |||
| CN114142008A | 2022-03-04 | |||
| CN113036106A | 2021-06-25 | |||
| CN113782700A | 2021-12-10 | |||
| CN107925087A | 2018-04-17 | |||
| CN110729451A | 2020-01-24 | |||
| CN113193173A | 2021-07-30 | |||
| US20170077553A1 | 2017-03-16 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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