Surface binding of polypyrrole on porous silicon hollow nanospheres for Li-ion battery anodes with high structure stability

Fei-Hu Du; Bo Li; Wei Fu; Yi-Jun Xiong; Kai-Xue Wang; Jie-Sheng Chen

doi:10.1002/adma.201401937

Surface binding of polypyrrole on porous silicon hollow nanospheres for Li-ion battery anodes with high structure stability

Adv Mater. 2014 Sep 17;26(35):6145-50. doi: 10.1002/adma.201401937. Epub 2014 Jul 22.

Authors

Fei-Hu Du¹, Bo Li, Wei Fu, Yi-Jun Xiong, Kai-Xue Wang, Jie-Sheng Chen

Affiliation

¹ School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.

PMID: 25047876
DOI: 10.1002/adma.201401937

Abstract

Uniform porous silicon hollow nano-spheres are prepared without any sacrificial templates through a magnesio-thermic reduction of mesoporous silica hollow nanospheres and surface modified by the following in situ chemical polymerization of polypyrrole. The porous hollow structure and polypyrrole coating contribute significantly to the excellent structure stability and high electrochemical performance of the nanocomposite.

Keywords: Li-ion batteries; hollow nanospheres; polypyrrole; porous structures; silicon anodes.

Publication types

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