In situ Ga-alloying in germanium nano-twists by the inhibition of fractal growth with fast Li+-mobility

Zhaoliang Yu; Long Yuan; Yingjin Wei; Haibo Li; Xiangdong Meng; Yao Li; Frank Endres

doi:10.1039/C9CC04408F

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In situ Ga-alloying in germanium nano-twists by the inhibition of fractal growth with fast Li⁺-mobility†

Zhaoliang Yu,^a Long Yuan,

^a Yingjin Wei,

^b Haibo Li,

*^a Xiangdong Meng,*^a Yao Li

*^c and Frank Endres^d

Author affiliations

* Corresponding authors

^a Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, P. R. China
E-mail: lihaibo@jlnu.edu.cn, xdmeng@jlnu.edu.cn

^b Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, P. R. China

^c Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin, P. R. China
E-mail: liyao@hit.edu.cn

^d Institute of Electrochemistry, Clausthal University of Technology, Clausthal-Zellerfeld, Germany

Abstract

In this study, Ge_0.90Ga_0.10 nano-twists were prepared by an in situ Ga-alloying method to inhibit the fractal growth of Ge. The mobility of Li⁺ in the Ge_0.90Ga_0.10 nano-twists was two orders higher than that in Ge. This advantage promotes fast charging of Li-ion batteries with the rate capability of 819 mA h g⁻¹ at 16 A g⁻¹.

$Graphical abstract: In situ Ga-alloying in germanium nano-twists by the inhibition of fractal growth with fast Li+-mobility$

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Article information

DOI: https://doi.org/10.1039/C9CC04408F
Article type: Communication
Submitted: 09 Jun 2019
Accepted: 29 Jul 2019
First published: 30 Jul 2019

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Chem. Commun., 2019,55, 10412-10415

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In situ Ga-alloying in germanium nano-twists by the inhibition of fractal growth with fast Li⁺-mobility

Z. Yu, L. Yuan, Y. Wei, H. Li, X. Meng, Y. Li and F. Endres, Chem. Commun., 2019, 55, 10412 DOI: 10.1039/C9CC04408F

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Chemical Communications