Research on the thermal runaway characteristics of lithium titanate batteries under different trigger conditions

Fire Science and Technology ›› 2021, Vol. 40 ›› Issue (6): 787-792.

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Research on the thermal runaway characteristics of lithium titanate batteries under different trigger conditions

XING Xue-bin1, YUAN De-qiang1, WANG Zhan-guo2, HUANG Wei-nan3, JIAN Bin-bin4

1. CRRC Changchun Railway Vehicles Co., Ltd., Jilin Changchun 130062, China; 2. National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China; 3. Travel Sky Technology Limited，Beijing 100105，China; 4. National Lithium Battery Product Quality Supervision and Inspection Center (Shandong), Shandong Zaozhuang 277800, China

Online:2021-06-15 Published:2021-06-15

Abstract

Abstract: Two commercial lithium titanate batteries with different capacities and different packaging forms were taken as the research object, the experimental study of thermal runaway triggering was carried out by means of overcharging, acupuncture and heating. Through summary of the experimental results, it is found that for lithium titanate batteries, under the same current excitation, the heat generation during the overcharge period is more obvious. Piercing direction and battery packaging have greater impact on the triggering of thermal runaway. The time required for an overcharged battery to run away of heating under the same power is much shorter than that of a fully charged battery.

Key words: lithium titanate battery, thermal runaway, trigger conditions, experimental comparison

XING Xue-bin, YUAN De-qiang, WANG Zhan-guo, HUANG Wei-nan, JIAN Bin-bin. Research on the thermal runaway characteristics of lithium titanate batteries under different trigger conditions[J]. Fire Science and Technology, 2021, 40(6): 787-792.

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Research on the thermal runaway characteristics of lithium titanate batteries under different trigger conditions

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