Title:
ELECTROCHEMICAL APPARATUS AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/261876
Kind Code:
A1
Abstract:
Provided in the present application are an electrochemical apparatus and a secondary battery. The electrochemical apparatus comprises a heating assembly, wherein the heating assembly comprises a heating portion, and a soaking portion, which is arranged around the heating portion; the soaking portion comprises a first soaking portion and a second soaking portion, which do not overlap with each other; the ratio of reciprocals of thermal resistance values of the first soaking portion and the second soaking portion is greater than or equal to 1.05; and the area of the first soaking portion and the area of the second soaking portion are each greater than 2 cm2. By means of the electrochemical apparatus provided in the present application, heat generated by a heating portion can be fully utilized, thereby effectively reducing the temperature difference of the surface of the heating portion, finally realizing a rapid temperature rise and uniform heat generation of the heating portion, and further improving the temperature uniformity of the electrochemical apparatus.
Inventors:
ZHENG BIZHU (CN)
WEI HONGMEI (CN)
ZHANG YIBO (CN)
WEI HONGMEI (CN)
ZHANG YIBO (CN)
Application Number:
PCT/CN2021/100449
Publication Date:
December 22, 2022
Filing Date:
June 16, 2021
Export Citation:
Assignee:
NINGDE AMPEREX TECHNOLOGY LTD (CN)
International Classes:
H01M10/654; H01M10/617
Domestic Patent References:
| WO2021009957A1 | 2021-01-21 | |||
| WO2013115312A1 | 2013-08-08 |
Foreign References:
| CN107078313A | 2017-08-18 | |||
| CN112599785A | 2021-04-02 | |||
| CN106816671A | 2017-06-09 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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