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Title:
BATTERY THERMAL RUNAWAY TEST SYSTEM AND TEST METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/207362
Kind Code:
A1
Abstract:
The present application relates to the technical field of battery thermal runaway, and discloses a battery thermal runaway test system and a test method thereof. The test system comprises a heating device, a power supply, a sensor assembly and a controller. The heating device is arranged inside a battery cell; the power supply is connected to the heating device by means of a wire; the sensor assembly is arranged on the surface of the battery cell and used for detecting signal characteristics inside the battery cell; the controller is connected to the sensor assembly and used for obtaining the signal characteristics of the battery cell and determining a characteristic early warning point of thermal runaway of the battery cell according to the signal characteristics of the battery cell. According to the test system disclosed by the present application, the problem of test interference caused by external factors such as appearance characteristics and overall temperature rise of a battery can be solved, and the accuracy of battery thermal runaway prediction is improved.

Inventors:
MEI WEI (CN)
LI LIN (CN)
ZHANG LIANG (CN)
LIU ZONGWEN (CN)
LIU HAODONG (CN)
WANG YONG (CN)
AI WEI (CN)
Application Number:
PCT/CN2023/080802
Publication Date:
November 02, 2023
Filing Date:
March 10, 2023
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01R31/389; G01R31/36; G01R31/392
Foreign References:
CN206059574U2017-03-29
CN115561274A2023-01-03
CN112824919A2021-05-21
CN113381082A2021-09-10
CN209486268U2019-10-11
CN109916454A2019-06-21
CN110058173A2019-07-26
US20120013341A12012-01-19
US20200036068A12020-01-30
Other References:
LI ZHAO, CHEN CAIXING; NIU HUICHANG; LI LEI: "Characteristic Parameter Analysis of Thermal Runaway Early Warning of Lithium-ion Battery", FIRE SCIENCE AND TECHNOLOGY, vol. 39, no. 2, 15 February 2020 (2020-02-15), pages 146 - 149, XP093104958, ISSN: 1009-0029
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
Download PDF:
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