Vertically aligned CNT-supported thick Ge films as high-performance 3D anodes for lithium ion batteries

Xinghui Wang; Rahmat Agung Susantyoko; Yu Fan; Leimeng Sun; Qizhen Xiao; Qing Zhang

doi:10.1002/smll.201400003

Vertically aligned CNT-supported thick Ge films as high-performance 3D anodes for lithium ion batteries

Small. 2014 Jul 23;10(14):2826-9, 2742. doi: 10.1002/smll.201400003. Epub 2014 Apr 3.

Authors

Xinghui Wang¹, Rahmat Agung Susantyoko, Yu Fan, Leimeng Sun, Qizhen Xiao, Qing Zhang

Affiliation

¹ School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore.

PMID: 24700811
DOI: 10.1002/smll.201400003

Abstract

The electrochemical performance of a thick Ge film (ca. 1020 nm) is dramatically improved by adopting vertically aligned carbon nanotube (VACNT) arrays as a 3D current collector. The VACNT-supported thick Ge film exhibits high reversible specific capacity (1352 mAh g(-1) ), and excellent capacity retention (97.2% after 100 cycles) and rate capability (843 mAh g(-1) at 10 C).

Keywords: Ge; anodes; carbon nanotubes; lithium ion batteries; thin films.

Publication types

Research Support, Non-U.S. Gov't