Tuning structural stability and lithium-storage properties by d-orbital hybridization substitution in full tetrahedron Li2FeSiO4 nanocrystal
详细信息 查看全文
- 作者：Jinlong Yanga ; b ; 1Author Vitae ; Jiaxin Zhenga ; 1Author Vitae ; Xiaochun KangbAuthor Vitae ; Gaofeng TengaAuthor Vitae ; Lin HubAuthor Vitae ; Rui TanaAuthor Vitae ; Kai WangaAuthor Vitae ; Xiaohe SongaAuthor Vitae ; Ming XuaAuthor Vitae ; Shichun Mub ; msc@whut.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Feng Pana ; panfeng@pkusz.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Optimized Ti substitution ; d-Orbital hybridization ; Full tetrahedron Li2FeSiO4 nanocrystal ; Structural stability ; Lithium-storage properties
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：20
- 期：Complete
- 页码：117-125
- 全文大小：2589 K
文摘
- •
We found heavy distortion during delithiated FeSiO4 lead to structure cracking.
- •
Ti(IV) doping enhanced the tetrahedral coupling by strong d-orbital hybridization.
- •
Ti(IV) doping increased Li-ion diffusion and electronic conductivity.
- •
This discovery provides a general approach to develop promising cathodes for LIBs.