Ge nanocoatings as anode for three dimensional Si based Li ion microbatteries

Chuang Yue; Won Jun Chang; Won II Park; Gaozhan Liu; Jing Li

Electrochemistry Communications (Jan 2020)

Ge nanocoatings as anode for three dimensional Si based Li ion microbatteries

Chuang Yue,
Won Jun Chang,
Won II Park,
Gaozhan Liu,
Jing Li

Affiliations

Chuang Yue: Department of Microelectronics Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, PR China; Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, PR China; State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xian 710054, PR China
Won Jun Chang: Department of Materials Science and Engineering, Hanyang University, Seoul 133-791, South Korea
Won II Park: Department of Materials Science and Engineering, Hanyang University, Seoul 133-791, South Korea; Corresponding authors.
Gaozhan Liu: Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, PR China
Jing Li: Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, PR China; Corresponding authors.

Journal volume & issue: Vol. 110

Abstract

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Three dimensional (3D) hedgehog-like Ge nanoelectrodes coated on patterned Si substrate are successfully fabricated through the facile chemical vapor deposition (CVD) process. The 3D Si substrate with enlarged surface area and the abundant Ge shell electrode configuration are together favorable to enhance the lithiation/delithiation kinetics during cycling. Impressively, the optimized 3D Si@hedgehog-like Ge (Si@H-Ge) NRs composites anodes embrace high reversible areal capacity and superior rate capability when employed as anode material for 3D Si based lithium ion microbatteries (LIMBs). Keywords: 3D, Ge, Anode, Cyclability, Lithium ion microbattery

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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