| Issue |
E3S Web Conf.
Volume 248, 2021
2021 3rd International Conference on Civil Architecture and Energy Science (CAES 2021)
|
|
|---|---|---|
| Article Number | 01040 | |
| Number of page(s) | 5 | |
| Section | Chemical Performance Structure Research and Environmental Pollution Control | |
| DOI | https://doi.org/10.1051/e3sconf/202124801040 | |
| Published online | 12 April 2021 | |
Effects of pre-charge temperatures on gas production and electrochemical performances of lithium-ion batteries
1 National Power Battery Innovation Center, GRINM Group Corporation Limited. Beijing 100088, China ;
2 China Automotive Battery Research Institute Co., Ltd., Beijing 100088, China ;
3 General Research Institute for Nonferrous Metals, Beijing 100088, China
* Corresponding author: jiantaowang2002@126.com
Pre-charge as a key step in the battery manufacture processes, which has a great impact on the film-forming properties and electrochemical performances, especially the Li-rich system batteries. As a key influence factor, it is necessary to clarify the effect of pre-charge temperature on battery performance. In this paper, we mainly studied the influence of different pre-charge temperatures (25°C, 40°C, 60°C) on the gas production and electrochemical performance of the batteries. The results show that the increase of the pre-charge temperature will result in the increase of gas production, and the gas components are mainly CO2, H2. After the long-term cycle, the sample under 40°C maintains the highest capacity retention rate, and as the pre-charge temperature increases, the median voltage of the battery can be effectively increased. In addition, compared with room temperature pre-charge, high pre-charge temperature samples have more excellent rate performance.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.