Core-shell Si@TiO2 nanosphere anode by atomic layer deposition for Li-ion batteries
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- 作者：Ying Baia ; c ; Dong Yana ; Caiyan Yua ; Lina Caob ; Chunlei Wangb ; Jinshui Zhangc ; Huiyuan Zhuc ; Yong-Sheng Hud ; Sheng Daic ; Junling Lub ; junling@ustc.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Weifeng Zhanga ; wfzhang@henu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Silicon nanospheres ; Titanium dioxide overcoating ; Atomic layer deposition (ALD) ; Cycling performance ; Buffering effect
- 刊名：Journal of Power Sources
- 出版年：2016
- 出版时间：15 March 2016
- 年：2016
- 卷：308
- 期：Complete
- 页码：75-82
- 全文大小：2793 K
文摘
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Si nanospheres are precisely coated with TiO2 by ALD method.
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The Si@TiO2 composite with a 3 nm TiO2 layer exhibits the best cycling stability.
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TiO2 thickness is critical to balance structural stability and conductivity of Si.
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The difference in coating electrode and active material by ALD is also revealed.
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