Design and Validation of Lifetime Prediction Model for Lithium-Thiocarbonyl Chloride Batteries Based on Accelerated Aging Experiments

Author:

Wang Silong12,Hou Xiaoyu1,Wang Yuhao3,Chen Yanjun2,Xu Dengji2,Liu Changcheng12ORCID,Huang Que124ORCID

Affiliation:

1. School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

2. Institute of Advanced Energy Materials and Systems, North University of China, Taiyuan 030051, China

3. Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China

4. School of Resources and Safety Engineering, Central South University, Changsha 410010, China

Abstract

The purpose of this study is to establish a life prediction model of lithium-thiocarbonyl chloride batteries by semi-empirical method. In the experiment, accelerated life tests on several groups of batteries at different temperatures were conducted. After a period of operation in the range from 25 °C to 74 °C, it was found that the higher the temperature, the less the remaining capacity of the batteries. According to the study of the battery aging mechanism, the characteristic parameter impedance of an aging battery would change exponentially with the increase of storage time and environmental temperature. The established life prediction model showed that the change in battery impedance spectrum had a good law, which made it possible to predict the state of charge (SOC) of the battery according to the local change characteristics of the electrochemical impedance spectroscopy (EIS) spectrum. The experimental data were compared with the fitted prediction curve, and the maximum deviation of the prediction was only 4.1036%, which indicated that the constructed model had high accuracy.

Funder

Tianjin Natural Science Foundation Project

Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response

Graduate Innovation Project of Shanxi Province

National Natural Science Foundation of China

China Postdoctoral Science Foundation

Natural Science Foundation of Hunan Province

Shanxi Scholarship Council of China

Natural Science Foundation of Shanxi Province

Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province

Opening Foundation of Key Laboratory in North University of China

Changsha Municipal Natural Science Foundation

Publisher

MDPI AG

Subject

General Materials Science,Metals and Alloys

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