化工新型材料
化工新型材料
화공신형재료
NEW CHEMICAL MATERIALS
2012年
11期
77-78,109
,共3页
锂离子电池%正极材料%LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2%掺Cr%溶胶-凝胶法
鋰離子電池%正極材料%LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2%摻Cr%溶膠-凝膠法
리리자전지%정겁재료%LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2%참Cr%용효-응효법
采用溶胶-凝胶法制备了层状锂离子电池正极材料LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2 (x=0,0.02,0.05,0.1).利用XRD、电化学测试等手段对材料的结构、电化学等性能进行表征.结果表明:LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2仍然为层状α-NaFeO2结构；当x=0.02,0.2C充放电首次放电比容量达到195mAh/g,首次放电效率高达到91.7％,并且有着良好的循环性能.
採用溶膠-凝膠法製備瞭層狀鋰離子電池正極材料LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2 (x=0,0.02,0.05,0.1).利用XRD、電化學測試等手段對材料的結構、電化學等性能進行錶徵.結果錶明:LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2仍然為層狀α-NaFeO2結構；噹x=0.02,0.2C充放電首次放電比容量達到195mAh/g,首次放電效率高達到91.7％,併且有著良好的循環性能.
채용용효-응효법제비료층상리리자전지정겁재료LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2 (x=0,0.02,0.05,0.1).이용XRD、전화학측시등수단대재료적결구、전화학등성능진행표정.결과표명:LiNi(1-x)/3Co(1-x)/3Mn(1-x)/3CrxO2잉연위층상α-NaFeO2결구；당x=0.02,0.2C충방전수차방전비용량체도195mAh/g,수차방전효솔고체도91.7％,병차유착량호적순배성능.
