Effects of Flame Retardant on the Rate Capability and Safety Performances of the Soft-Package 5Ah Lithium Ion Battery

Authors

Yan-zhuo LV, Hefei Guoxuan High-tech. Co. Ltd., Hefei230001, Anhui, China;Follow
Xiao-he WANG, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001 China;
Yi-ming QIN, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001 China;
Zhen-bo WANG, School of Chemical Engineering and Technology, Harbin Institute of Technology, No.92 West-Da Zhi Street, Harbin, 150001 China;
Ke KE, School of Chemical Engineering and Technology, Harbin Institute of Technology, No.92 West-Da Zhi Street, Harbin, 150001 China;Chaowei Power Co., LTD, Changxing, 313100 China;

Corresponding Author

Yan-zhuo LV(lvyanzhuo@hrbeu.edu.cn)

Abstract

The 5 Ah soft packed lithium ion batteries with LiNi _0.4Co_0.2Mn_0.4 O₂ as the positive electrode material and the organic electrolytes with different amounts of fire retardants as the electrolyte solution were prepared. The effects of the fire retardant amount (5 %，10 %，20 %) of the fire retardants on the rate performances, short-circuit characteristics and overcharged behaviors of the 5 Ah soft packed lithium ion battery were investigated by electrochemical methods. The results indicated that the best rate performances were obtained by adding 5 vol.% of the fire retardants in the electrolyte solution when the battery was discharged at 1C and 2C. The battery had the lowest surface temperature with 20 vol.% of fire retardant in the electrolyte solution when it was over-charged. The batteries could not catch fire and explode when the battery were short-circuited.

Graphical Abstract

Keywords

soft-packaged lithium ion battery, fire retardant, safety performances, rate performances, over-charge.

DOI Link

https://doi.org/10.13208/j.electrochem.160119

Publication Date

2017-02-28

Online Available Date

2016-03-07

Revised Date

2016-02-25

Received Date

2016-01-25

Recommended Citation

Yan-zhuo LV, Xiao-he WANG, Yi-ming QIN, Zhen-bo WANG, Ke KE. Effects of Flame Retardant on the Rate Capability and Safety Performances of the Soft-Package 5Ah Lithium Ion Battery[J]. Journal of Electrochemistry, 2017 , 23(1): 80-85.
DOI: 10.13208/j.electrochem.160119
Available at: https://jelectrochem.xmu.edu.cn/journal/vol23/iss1/11