Surface modification by silver coating for improving electrochemical properties of LiFePO4
Surface modification by silver coating for improving electrochemical properties of LiFePO4
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DOI：
10.1016/j.ssc.2003.10.015
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发表时间：
2004-02-01
影响因子：
2.1
通讯作者：
Kim, HG
中科院分区：
文献类型：
--
作者：
Park, KS;Son, JT;Kim, HG
LiFePO4是一种很有潜力的锂二次电池正极材料。采用简单共沉淀法合成了细小颗粒的LiFePO4，并尝试用硝酸银溶液对LiFePO4进行水包覆，以提高其电导率。在粒子上高度分散的银增强了电子的导电性，增加了容量。不同电流密度的镀银LiFePO4的电化学性质与高导电性的LiFePO4相似。即使在高电流密度下，银涂层也是一种很有前途的容量保持工具。(C)2003爱思唯尔有限公司。保留所有权利。
LiFePO4 is a potential candidate for the cathode material of the lithium secondary battery. Fine particle LiFePO4 was synthesized by the simple co-precipitation method, and aqueous coating on the LiFePO4 was tried using silver nitrate solution in order to increase electronic conductivity. Highly dispersed silver on the particles enhances the electronic conductivity and increases the capacity. The electrochemical properties of the silver coated LiFePO4 with the various current densities are analogous to those of highly conductive LiFePO4. The silver coating can be a promising tool to preserve the capacity even at the high current densities. (C) 2003 Elsevier Ltd. All rights reserved.