標題: Effects of Negative Electrodes Coated by ZnO with Different Morphologies on Electrochemical Performances and Safety of Lithium Ion Batteries
作者: Chang, Chia-Ming
Lin, Hsiu-Fen
Liao, Shih-Chieh
Chiu, Hsin-Tien
Liu, Chia-Erh
Guo, Han-Lin
交大名義發表
National Chiao Tung University
關鍵字: Tetrapod ZnO;Rod ZnO;Negative electrode;Electrochemistry;Safety;Thermal stability;Li-ion battery
公開日期: 1-一月-2019
摘要: To improve the safety of lithium-ion batteries, this study applied topographically different ZnO to the surface of negative graphite electrodes to serve as heat-resistant layers and explored the effects of these layers on a battery's electrochemical and safety features. The results indicate that when using a tetrapod ZnO (T-ZnO) particle coating as a heat-resistant layer on a negative graphite electrode, ion diffusion is improved because T-ZnO has a three-dimensional network structure and forms highly porous layers. This causes batteries to retain excellent electrochemical characteristics even if they contain inactive substances. Moreover, the results of overcharge and penetration tests were satisfactory, suggesting that the batteries are highly safe.
URI: http://dx.doi.org/10.20964/2019.02.49
http://hdl.handle.net/11536/148675
ISSN: 1452-3981
DOI: 10.20964/2019.02.49
期刊: INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
Volume: 14
起始頁: 1197
結束頁: 1207
顯示於類別:期刊論文