Layered GeP-black P(Ge2P3): An advanced binary-phase anode for Li/Na-storage

Li, Xinwei2; Li, Wenwu1; Shen, Pengfei1; Yang, Liangcai1; Li, Yunyong1; Shi, Zhicong1; Zhang, Haiyan1

2019-08-15

10.1016/j.ceramint.2019.04.219

CERAMICS INTERNATIONAL   影响因子和分区

0272-8842

1873-3956

Various P-Ge compounds including GeP5 and GeP3 can be easily synthesized by a direct ball milling method while GeP can not. Herein, we successfully synthesize binary-phase Ge2P3 composite which derived from layered GeP and black P. When applied as anodes for Li-ion batteries, the as-synthesized binary-phase composite delivers a large reversible capacity of 1605 mA h g(-1) with a high initial Coulombic efficiency of 89%, retains 1380 mA h g(-1) after 100 cycles and even achieves 920 mA h g(-1) at a current density of at 5 A g(-1). Also, for sodium-storage it shows a reversible capacity of 970 mA h g(-1) with an initial Coulombic efficiency of 88% and retains 890 mA h g(-1) after 100 cycles. The performance can be attributed to the following merits: the binary Li/Na-storage components host more Li/Na ions, the layered structure favors Li/Na-ion transportation and the abundant heterointerfaces increase the amount of active sites.

Composite Anode Li/Na-ion batteries

SCI ; EI

英语

第一

China Postdoctoral Science Foundation[1112000139]

Materials Science

Materials Science, Ceramics

WOS:000474322000154

ELSEVIER SCI LTD

20192006913663

Anodes ; Ball milling ; Composite materials ; Efficiency ; Germanium compounds ; Lithium compounds ; Lithium-ion batteries

Electron Tubes:714.1 ; Chemical Operations:802.3 ; Production Engineering:913.1 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518071, Peoples R China

Li, Xinwei,Li, Wenwu,Shen, Pengfei,et al. Layered GeP-black P(Ge2P3): An advanced binary-phase anode for Li/Na-storage[J]. CERAMICS INTERNATIONAL,2019,45(12):15711-15714.

Li, Xinwei.,Li, Wenwu.,Shen, Pengfei.,Yang, Liangcai.,Li, Yunyong.,...&Zhang, Haiyan.(2019).Layered GeP-black P(Ge2P3): An advanced binary-phase anode for Li/Na-storage.CERAMICS INTERNATIONAL,45(12),15711-15714.

Li, Xinwei,et al."Layered GeP-black P(Ge2P3): An advanced binary-phase anode for Li/Na-storage".CERAMICS INTERNATIONAL 45.12(2019):15711-15714.