Composite nanofibers through in-situ reduction with abundant active sites as flexible and stable anode for lithium ion batteries

Wu, Songhao1; Han, Yidong2; Wen, Kechun1; Wei, Zhaohuan1; Chen, Dongjiang1; Lv, Weiqiang1; Lei, Tianyu3; Xiong, Jie3; Gu, Meng4; He, Weidong1

2019-03-15

10.1016/j.compositesb.2018.12.039

COMPOSITES PART B-ENGINEERING   影响因子和分区

1359-8368

1879-1069

Due to the flexibility and excellent electrochemical properties, carbon nanofibers have been proposed as promising anode material for lithium ion batteries. In this paper, through in-situ reduction of C/CuO/rGO after electrospinning to form abundant active sites at carbon nanofibers, a novel C/Cu/rGO anode is prepared. The C/Cu/rGO anode owns a capacity of similar to 400 mAh/g at 1 A/g after 600 cycles, a value well above those of C and C/rGO (< 200 mAh/g). Cu nanoparticles greatly improve the lithium storage performance by forming defects as active sites for ion storage and owning a pseudo capacitance due the interrupted ordered atomic arrangement and the increase of surface desaturation in the anode. Synergistically, rGO improves the conductivity and stability. This work provides an efficient anode materials platform towards high-capacity and flexible lithium ion batteries.

Lithium ion batteries Flexible electrode C/Cu/rGO Active sites Pseudo capacitance

SCI ; EI

英语

通讯

Engineering ; Materials Science

Engineering, Multidisciplinary ; Materials Science, Composites

WOS:000459365700035

ELSEVIER SCI LTD

20185206288627

Anodes ; Capacitance ; Carbon nanofibers ; Ions ; Reduction

Electricity: Basic Concepts and Phenomena:701.1 ; Electron Tubes:714.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Solid State Physics:933

MATERIALS SCIENCE

Web of Science

1.Univ Elect Sci & Technol, Sch Phys, Chengdu 611731, Sichuan, Peoples R China
2.Univ Elect Sci & Technol, Sch Mat & Energy, Chengdu 611731, Sichuan, Peoples R China
3.Univ Elect Sci & Technol China, State Key Lab Elect Thin Film & Integrated Device, Chengdu 610054, Sichuan, Peoples R China
4.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Wu, Songhao,Han, Yidong,Wen, Kechun,et al. Composite nanofibers through in-situ reduction with abundant active sites as flexible and stable anode for lithium ion batteries[J]. COMPOSITES PART B-ENGINEERING,2019,161:369-375.

Wu, Songhao.,Han, Yidong.,Wen, Kechun.,Wei, Zhaohuan.,Chen, Dongjiang.,...&He, Weidong.(2019).Composite nanofibers through in-situ reduction with abundant active sites as flexible and stable anode for lithium ion batteries.COMPOSITES PART B-ENGINEERING,161,369-375.

Wu, Songhao,et al."Composite nanofibers through in-situ reduction with abundant active sites as flexible and stable anode for lithium ion batteries".COMPOSITES PART B-ENGINEERING 161(2019):369-375.