High-Columbic-Efficiency Lithium Battery Based on Silicon Particle Materials
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- 作者：Junying Zhang ; Chunqian Zhang ; Shouming Wu ; Xu Zhang…
- 关键词：Polycrystalline silicon particle ; High columbic efficiency ; Lithium ; ion battery
- 刊名：Nanoscale Research Letters
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：10
- 期：1
- 全文大小：1,231 KB
- 刊物主题：Nanotechnology; Nanotechnology and Microengineering; Nanoscale Science and Technology; Nanochemistry; Molecular Medicine;
- 出版者：Springer US
- ISSN：1556-276X
文摘
Micro-sized polycrystalline silicon particles were used as anode materials of lithium-ion battery. The columbic efficiency of the first cycle reached a relatively high value of 91.8 % after prelithiation and increased to 99 % in the second cycle. Furthermore, columbic efficiency remained above 99 % for up to 280+ cycles. The excellent performances of the batteries were the results of the use of a proper binder to protect the electrode from cracking and the application of a suitable conductive agent to provide an efficient conductive channel. The good performance was also significantly attributed to the electrolyte in the packaging process.