High Power Copper Sulfide Cathodes for Thin-Film Microbatteries

被引：52

作者：

Mazor, H. ^{[1
]}

Golodnitsky, D. ^{[1
,2
]}

Burstein, L. ^{[2
]}

Peled, E. ^{[1
]}

机构：

[1] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel

[2] Tel Aviv Univ, Wolfson Appl Mat Res Ctr, IL-69978 Tel Aviv, Israel

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2009年 / 12卷 / 12期

关键词：

LI-ION MICROBATTERIES; LITHIUM BATTERIES;

D O I：

10.1149/1.3240921

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An electrodeposition method has been used to prepare thin CuS films on nickel- or gold-coated silicon substrates. The effects of current density, deposition time, solution stirring, and addition of polymer additives have been studied to determine the optimum conditions for CuS formation. Semi-three-dimensional concentric microbatteries (3DCMBs) on perforated silicon substrates showed a superior peak-power capability of 50 mW/cm(2) and a stable electrochemical behavior. The reversible capacity of the semi-3DCMBs is 1.0-2.5 mAh/cm(2) of battery footprint, which agreed with the geometrical-area gain. It is expected that the full 3DCMB may exhibit even better energy density and power capability of 7.4 kW/L. (C) 2009 The Electrochemical Society. [DOI: 10.1149/1.3240921] All rights reserved.

引用

页码：A232 / A235

页数：4

共 15 条

[1] ELECTROCHEMICAL-BEHAVIOR OF SOLID CATHODE MATERIALS IN ORGANIC ELECTROLYTE LITHIUM BATTERIES - COPPER SULFIDES [J].