Journal of Shanghai Jiao Tong University ›› 2023, Vol. 57 ›› Issue (4): 473-481.doi: 10.16183/j.cnki.jsjtu.2021.509

Special Issue: 《上海交通大学学报》2023年“新型电力系统与综合能源”专题

• New Type Power System and the Integrated Energy • Previous Articles     Next Articles

Design and Preparation Method of Capacitive Lithium-Titanate Battery

WU Yuhang1, LI Canbing1(), LI Xinxi2, GU Huijun3, GU Shanhua3, ZHENG Xiaogeng3   

  1. 1. School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    2. College of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
    3. Hunan Huahui New Enengy Co., Ltd., Yiyang 413000, Hunan, China
  • Received:2021-12-16 Revised:2022-02-10 Accepted:2022-02-21 Online:2023-04-28 Published:2023-05-05

Abstract:

In order to solve the problem of battery bulging and capacity fading, this paper proposes an innovative battery capacitor structure and the related preparation process. This method integrates the physical energy storage method of the capacitor and the chemical energy storage method of the energy storage battery. In the preparation process, a novel technology of columnar lithium-ion battery soaking is adopted, which improves the soaking efficiency and reduces the internal moisture of the battery. The related performance tests show that the capacity retention rate of the new lithium-titanate battery can reach 92.5% after 9 548 cycles, and the battery capacity can be maintained above 75% at a low temperature. The proposed method provides an effective means for improving the performance of the lithium-titanate battery.

Key words: lithium-titanate battery, capacitive battery structure, battery impregnation technology, double explosion-proof design

CLC Number: