首页> 外文会议>8th Asian Conference on Solid State Ionics: Trends in the New Millennium; Dec 15-19, 2002; Langkawi, Malaysia >SYNTHESIS AND REDOX BEHAVIOR OF OXYGEN DEFICIENT BRANNERITE LiVWO_(6-δ) FOR LITHIUM BATTERIES
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SYNTHESIS AND REDOX BEHAVIOR OF OXYGEN DEFICIENT BRANNERITE LiVWO_(6-δ) FOR LITHIUM BATTERIES

机译:锂电池用缺氧硼铁矿LiVWO_(6-δ)的合成及氧化还原行为

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摘要

This paper describes the synthesis and electrochemical behavior of the oxygen deficient brannerite LiVWO_(6-δ). Brannerite LiVWO_(6-δ) has been synthesized by means of a simple aqueous solution reaction (ASR) technique namely soft-combustion process employing glycine as a soft combustion agent The synthesized product has been subjected to thermal treatment in various stages in order to best understand the phase formation and study their redox behavior in lithium-containing cells. Electrochemical studies such as Cyclic voltammetry, Galvanostatic (constant current) charge-discharge curves and Galvanostatic Intermittent Titration Technique (GITT) on this oxygen deficient product show that this material could be regarded as 4-volt class category with specific capacities as high as ~ 95 mAh/g in the voltage regime 4.9 V to 2.8 V vs Li~+/Li.
机译:本文描述了缺氧褐煤LiVWO_(6-δ)的合成和电化学行为。褐铁矿LiVWO_(6-δ)是通过简单的水溶液反应(ASR)技术合成的,即使用甘氨酸作为软性燃烧剂的软燃烧工艺。合成产物经过了不同阶段的热处理,以达到最佳效果。了解相形成并研究其在含锂电池中的氧化还原行为。对这种缺氧产品进行的电化学研究(例如循环伏安法,恒电流(恒流)充放电曲线和恒电流间歇滴定技术(GITT))表明,该材料可被视为4伏级类别,比容量高达〜95相对于Li〜+ / Li,电压范围4.9 V至2.8 V中的mAh / g。

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