Characteristics of a Li/MnO2 battery using a lithium powder anode at high-rate discharge

被引：61

作者：

Park, MS ^{[1
]}

Yoon, WY ^{[1
]}

机构：

[1] Korea Univ, Div Engn & Mat Sci, Sungbuk Ku, Seoul 136701, South Korea

来源：

JOURNAL OF POWER SOURCES | 2003年 / 114卷 / 02期

关键词：

lithium battery; lithium powder; impedance; manganese dioxide; capacity; high-rate discharge;

D O I：

10.1016/S0378-7753(02)00581-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The characteristics of lithium-manganese-dioxide cells using Li powder or Li foil as the negative electrode (anode) are compared at high-rate discharge. Lithium powders with a mean diameter of 20 mum are produced by forming a dispersion of molten Li metal in inorganic carrier fluids. Cells using Li powder anodes show larger capacity and lower internal resistance than cells using Li foil anodes. Based on BET (Brunauer-Emmett-Teller) measurements, a reduction of effective current density due to the large surface area of the Li powder is considered to be responsible for the superior higher-rate discharge characteristics. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：237 / 243

页数：7

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