Title:
RAPID SCREENING METHOD FOR RETIRED BATTERY MODULE
Document Type and Number:
WIPO Patent Application WO/2019/041815
Kind Code:
A1
Abstract:
A rapid screening method for a retired battery module. Detection is performed based on a battery module, and comprises appearance detection, static voltage detection, consistency detection of a battery cell under a system operating condition, capacitance test of a battery module under a system operating condition, self-discharging consistency detection of a battery cell under a system state and a comprehensive assessment based on a detection result. A battery module satisfying a requirement is screened out. In the present invention, there is no need to disassemble a battery module into battery units, thus greatly reducing the workload caused by battery disassembling; original selection is made by simple appearance detection and static voltage detection under a module state and disqualified products are removed, avoiding the interference of these obviously disqualified products to subsequent detection; detection under an operating condition after a system is assembled not only greatly reduces the workload of detection, but also enables screening to be more effective and satisfy actual scenarios better.
Inventors:
ZHUANG MINGZHAO (CN)
LIU LU (CA)
JIA GUANGQING (CN)
TANG YING (CN)
LIU LU (CA)
JIA GUANGQING (CN)
TANG YING (CN)
Application Number:
PCT/CN2018/082335
Publication Date:
March 07, 2019
Filing Date:
April 09, 2018
Export Citation:
Assignee:
BEIJING SUNNYSTAR TECHNICAL SERVICES CO LTD (CN)
International Classes:
G01R31/36
Foreign References:
| CN103513190A | 2014-01-15 | |||
| CN106443475A | 2017-02-22 | |||
| CN104198943A | 2014-12-10 | |||
| CN103091639A | 2013-05-08 | |||
| CN103296325A | 2013-09-11 |
Attorney, Agent or Firm:
BEIJING ZHUOHUA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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