Sodium storage mechanism of a GeP5/C composite as a high capacity anode material for sodium-ion batteries

被引：8
作者：
Zhang, Mao-Hui [1 ,2 ]
Meng, Jing-Ke [1 ,3 ]
Xiao, Na [1 ]
Shao, Rui-Wen [4 ,5 ]
Wu, Xiao-Jing [1 ]
Gao, Peng [6 ]
Shadike, Zulipiya [7 ]
Zhou, Yong-Ning [1 ]
机构：
[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China
[2] Shanghai Inst Space Power Sources, State Key Lab Space Power Sources Technol, Shanghai 200245, Peoples R China
[3] Tongji Univ, Sch Mat Sci & Engn, Inst New Energy Vehicles, Shanghai 201804, Peoples R China
[4] Beijing Inst Technol, Beijing Adv Innovat Ctr Intelligent Robots & Syst, Beijing 100081, Peoples R China
[5] Beijing Inst Technol, Sch Med Technol, Beijing 100081, Peoples R China
[6] Peking Univ, Sch Phys, Electron Microscopy Lab, Beijing, Peoples R China
[7] Shanghai Jiao Tong Univ, Sch Mech Engn, Inst Fuel Cells, Shanghai 200240, Peoples R China
来源：
CHEMICAL COMMUNICATIONS | 2022年 / 58卷 / 74期
关键词：
LITHIUM ION; GRAPHENE;
D O I：
10.1039/d2cc03728a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The sodium storage mechanism of a GeP5/C composite electrode was revealed. Metallic Ge formed during discharge enhances the electronic conductivity of the electrode, while NaxP mitigates the agglomeration and volume change of Ge in the alloying process. The GeP5 phase is regenerated after recharge along with elemental Ge and P, implying a reversible phase transition of GeP5 during cycling.
引用
收藏
页码：10345 / 10348
页数：4
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