Encapsulation of Se/C into ultra-thin Ni(OH)2 nanosheets as cathode materials for lithium-selenium batteries
Encapsulation of Se/C into ultra-thin Ni(OH)2 nanosheets as cathode materials for lithium-selenium batteries
复制标题
将 Se/C 封装到超薄 Ni(OH)(2) 纳米片中作为锂硒电池正极材料
DOI：
10.1007/s10008-017-3696-y
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发表时间：
2017-07
期刊：
影响因子：
--
通讯作者：
Yongsong Luo
中科院分区：
文献类型：
--
作者：
Rongjie Luo;Yang Lu;Xiaoyi Hou;Qiuhong Yu;Tao Peng;Hailong Yan;Xianming Liu;Jang-Kyo Kim;Yongsong Luo
Composites consisting of selenium/carbon (Se/C) encapsulated by ultra-thin Ni(OH)2 nanosheet shell are synthesized as cathode for high-performance lithium-selenium batteries. The Se/C-Ni(OH)2 cathode presents excellent discharge capacities and cyclic stability with almost 100% Coulombic efficiencies. It delivers a reversible capacity of 323 mAh g−1 after 300 cycles with almost negligible capacity degradation after 100 cycles at a high current density of 1 C. Several unique functional features of the composite electrodes are responsible for the findings. The uniform mixture of Se and carbon black in the composite promotes the utilization of the active materials with enhanced ion/electron transfer. The Ni(OH)2 nanosheets maintain the integrity of Se/C core during cycles, reducing the shuttling effect reactions of polyselenides. These results demonstrate that the Se/C-Ni(OH)2 composite cathode is a promising candidate for application in rechargeable lithium-selenium batteries.
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影响因子：
17.1
作者：
Luo, Chao;Xu, Yunhua;Wang, Chunsheng
通讯作者：
Wang, Chunsheng
影响因子：
--
作者：
Huan Ye;Ya‐Xia Yin;Shuai Zhang;Yu‐Guo Guo
通讯作者：
Huan Ye;Ya‐Xia Yin;Shuai Zhang;Yu‐Guo Guo
影响因子：
3.2
作者：
R. Lukács;M. Veres;K. Shimakawa;S. Kugler
通讯作者：
R. Lukács;M. Veres;K. Shimakawa;S. Kugler
影响因子：
9.2
作者：
Han, Kai;Liu, Zhao;Dai, Fang
通讯作者：
Dai, Fang
影响因子：
5.4
作者：
C. Lien;Chi-Chang Hu;Chun-Tsung Hsu;D. Wong
通讯作者：
C. Lien;Chi-Chang Hu;Chun-Tsung Hsu;D. Wong