Silicon anode for rechargeable aqueous lithium-air batteries

JOURNAL OF POWER SOURCES

卷:273

Article

Teranishi, R.¹  Si, Q.¹  Mizukoshi, F.¹  Kawakubo, M.¹  Matsui, M.^1,2  Takeda, Y.¹  Yamamoto, O.¹  Imanishi, N.¹ 

[1] Mie Univ, Grad Sch Engn, Tsu, Mie 5148507, Japan

[2] PRESTO, JST, Kawaguchi, Saitama 3320012, Japan

关键词: High energy density battery;    Lithium-air battery;    Silicon anode;    Polyimide binder;   

DOI  :  10.1016/j.jpowsour.2014.09.024

来源: Elsevier

【 摘 要 】

A novel aqueous lithium-air rechargeable cell with the configuration of Si/1 M LiClO4 in ethylene carbonate-diethylene carbonate/Li1+x+yAlx(Ti,Ge)(2-x)P3-ySiyO12/5 M LiCl-1 M LiOH aqueous solution/carbon black, air is proposed. A silicon anode composed of mechanically milled silicon power with an average particle size of ca. 0.5 mu m, vapor grown carbon fiber and a polyimide binder was examined. The open-circuit voltage at the charged state was 2.9 V at 25 degrees C. The discharge capacity of 700 mAh g-silicon(-1) was retained for 40 cycles at 0.3 mA cm(-2) with cut-off voltages of 3.5 and 1.5 V. Significant capacity fade was observed at deep charge and discharge cycling at 2000 mAh g-silicon(-1). (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

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