Fabrication and characterization of boron-doped silicon microchannel plates as lithium-ion microbatteries anodes

Author

Fei Wang ; Shaohui Xu ; Shanshan Zhu ; Lianwei Wang

Author_Institution

Dept. of Electron. Eng., China Normal Univ., Shanghai, China

fYear

2012

fDate

Oct. 29 2012-Nov. 1 2012

Firstpage

1

Lastpage

3

Abstract

A three-dimensional (3D) anode using boron-doped Si microchannel plate (Si-MCP) as matrix and active material was proposed. Using lithium foils as the counter electrodes, typical half-cells were fabricated and tested. Galvanostatic charge-discharge (C-D) measurements were conducted between 0.05 and 1.5 V, boron-doped Si-MCP anode exhibited a charge capacity of 3250 mAh g^-1 with a coulombic efficiency close to 46% in the initial cycle, but above 79.6% in the second cycle. Moreover, it could keep reversible discharge capacities above 500 mAh g^-1 after the 10th cycle. Based on cyclic voltammetry (CV) data, the mechanism about the lithiation of boron-doped Si-MCP was also proposed.

Keywords

boron; electrochemical electrodes; elemental semiconductors; foils; lithium; microchannel plates; microfabrication; secondary cells; silicon; voltammetry (chemical analysis); 3D anode; Li; Si:B; active material; charge capacity; counter electrode; cyclic voltammetry; fabrication; foil; galvanostatic charge-discharge measurement; lithium-ion microbattery anode; microchannel plate; reversible discharge capacity; voltage 0.05 V; voltage 1.5 V; Anodes; Batteries; Electric potential; Scanning electron microscopy; Silicon;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology (ICSICT), 2012 IEEE 11th International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4673-2474-8

Type

conf

DOI

10.1109/ICSICT.2012.6467664

Filename

6467664