Capacity and energy test analysis of lithium-ion traction battery pack for high energy applications

Jinghong Jiang; Zhimao Ming; Guixiong Liu; Kelun Zhao

doi:10.1117/12.2611326

14 October 2021 Capacity and energy test analysis of lithium-ion traction battery pack for high energy applications

Jinghong Jiang, Zhimao Ming, Guixiong Liu, Kelun Zhao

Proceedings Volume 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation; 119302I (2021) https://doi.org/10.1117/12.2611326
Event: International Conference on Mechanical Engineering, Measurement Control, and Instrumentation (MEMCI 2021), 2021, Guangzhou, China

Abstract

In view of the complicated testing process of high energy applications of lithium-ion traction battery packs for electric vehicles, based on current standards, the capacity and energy test programs under working conditions of 25℃, 45℃, and -20℃ were designed respectively, and tests were carried out according to the formulated programs. The test results show that under high temperature conditions, the discharge capacity and discharge energy of the battery pack are significantly reduced, and the loading of the thermal management system has a greater impact on the discharge capacity and discharge energy of the battery pack. The temperature rise during the discharge is related to the temperature of the working condition. The higher the temperature of the working condition, the lower the temperature rise during the discharge. The formulated high energy application lithium-ion traction battery pack capacity and energy test program can effectively complete the corresponding application test analysis, the program is simple to operate, and the results are accurate and effective.

Citation Download Citation

Jinghong Jiang, Zhimao Ming, Guixiong Liu, and Kelun Zhao "Capacity and energy test analysis of lithium-ion traction battery pack for high energy applications", Proc. SPIE 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation, 119302I (14 October 2021); https://doi.org/10.1117/12.2611326

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