文献类型：期刊文献

中文题名：废旧正极材料溶胶-凝胶自蔓延燃烧法制备LiNi_(0.5)Co_(0.2)Mn_(0.3)O_2的研究

英文题名：Preparation of LiNi_(0.5)Co_(0.2)Mn_(0.3)O_2 by Sol-Gel Self-propagating Combustion Method Using Waste Cathode Material

作者：李伟伟[1]

第一作者：李伟伟

机构：[1]新乡学院化学化工学院

第一机构：新乡学院化学化工学院

年份：2017

卷号：37

期号：4

起止页码：117-119

中文期刊名：矿冶工程

外文期刊名：Mining and Metallurgical Engineering

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：国家自然科学基金(51304046)

语种：中文

中文关键词：废旧正极材料;溶胶-凝胶;自蔓延燃烧;三元正极材料

外文关键词：waste cathode material;sol-gel;self-propagating combustion;ternary cathode material

摘要：以废旧NiCoMn三元材料为原料,采用溶胶-凝胶自蔓延燃烧法制备了LiNi_(0.5)Co_(0.2)Mn_(0.3)O_2锂离子电池正极三元复合材料。通过XRD、SEM、蓝电测试仪对其结构、形貌和电化学性能进行了表征。结果表明,该材料不仅具有较好的层状结构,还具有多孔特性。在2.75~4.30 V、0.2C测试条件下,800℃煅烧8 h的样品具有相对较好的电化学性能,其首次放电容量为165.8 m Ah/g,库伦效率约86.8%,经过50次循环后,容量保持率约为93.3%。
An eligible ternary cathode material for Lithium ion batteries,LiNi0.5Co0.2Mn0.3O2,was synthesized by sol-gel self-propagating combustion method using waste NiCoMn ternary material as raw material.The microstructure,morphology and electrochemical performance were characterized by XRD,SEM and Land Testing.Results indicated that the material had a good layered structure and characteristics of high porosity.Under the test conditions of 2.75 4.30 V and 0.2C,the sample,calcined at 800 ℃ for 8 hours,had better electrochemical performance,with a discharge capacity of 165.8 mAh/g,coulomb efficiency of 86.8% and capacity retention rate around 93.3% after 50 cycles.