锂电池一、电芯使用种类.............................................................................................................2二、电芯分类.....................................................................................................................32.1从外形区分:方形电池和圆柱形电池;........................................................32.2锂电池外包材料区分:....................................................................................32.3从用途上区分:................................................................................................32.3.1从使用场合来区分:.........................................................................32.3.2从结构上区分:...............................................................................32.3.3从20℃放电容量倍率区分:..........................................................32.4从正负极材料区分:........................................................................................32.4.1、三元材料:.......................................................................................32.4.2磷酸铁锂:...........................................................................................42.4.3钛酸锂:...............................................................................................4三、电芯............................................................................................................................43.1化学背景............................................................................................................43.1.1电池与燃料背后的简单化学....................................................................53.2电芯的的电解液问题...........................................................................................63.3电芯的负极表面材料...........................................................................................73.4电芯的正极表面材料.........................................................................................103.5电芯的选材问题.................................................................................................113.6电芯前沿技术.....................................................................................................11一、电芯使用种类目前亿能电子电池包所选的锂电池电芯有三星、东芝、力神、亿纬、国轩高科、CATL等等。容量:在25℃,最小放电容量放电能量:在25℃,最小放电能量脉冲电流:在25℃,50%SOC条件下,最大放电电流寿命:在25℃,情况下可循环三星东芝力神亿纬CATL国轩94AH西安37Ah韩国28Ah韩国20AH2.2AH1865037AH56AH75AH容量(AH)94AH(1/3C放电)37Ah(1C放电)28Ah(1C放电)20AH(1/3C放电)2.2AH(0.2C放电)1次≥37Ah(1/3C放电,循环五次)56AH(1/3C放电)75AH(1/3C放电)材料三元材料三元材料三元材料钛酸锂三元材料三元材料磷酸铁锂磷酸铁锂重量(g)20608057555154681014401900放电能量(wh)345(1/3C放电)136(1C放电)102.76(1C放电)46(1/3C放电)7.92Wh(0.2C放电)1次≥135(1/3C放电,循环五次)工作环境﹣30℃-60℃﹣30℃-60℃﹣30℃-60℃﹣30℃-55℃﹣30℃-55℃﹣20℃-60℃﹣20℃-60℃﹣20℃-60℃脉冲电流380A,持续5S110A,持续10S297A,持续10S200A,持续10S3C,15℃-45℃,370A,持续10S能量密度(Wh/Kg)16516913689.3172166.7工作电压范围2.7V-4.15V3V-4.2V3V-4.15V1.5V-2.7V2V-4.1V2.8V-4.2V标称电压3.68V3.665V3.67V2.3V3.6V3.65V3.2V3.2寿命3500次(1C放,0.5C充)3500次(1C放,0.5C充)3500次(1C放,0.5C充)2000次(1C放,1C充...