世韩IFR18650EC负极课件

世韩IFR-18650EC负极分析一.分析项目极片尺寸极片黑白度极片厚度极片涂敷量极片粘结力SEM&EDS1.极片尺寸对比世韩极片尺寸由极组拆开测得，所以间隔尺寸没法测量，只有第一面和第二面涂敷长度，共测量5个极组。力神极片尺寸由检验记录查询得到。第一面第二面666615666615666615666615666615由于取样数量的限制，无法进行分析。但从测得数值来看，世韩负极尺寸相当稳定。力神负极存在一定的波动。第一面第二面664615664616665615665615664616世韩负极力神负极3.极片碾压厚度对比①②③④⑤⑥取样方法：分别从上中下，左中右位置拉取小条，分别检测厚度和涂敷量。115815815115415815415815715515715815821561541541581511551531571551561561573157153153153157157155152156157153153415515215315615415815715515515715215251551541541501561551561551551551541556156151154157155153152157155156155152世韩极片碾压前厚度碾压前极片厚度均值：155μ世韩极片碾压后厚度1100979698100989610098979795210110197100100100991019998100983969695979596999596100969749899981009899979598969696510096979810097999896959497610198999796971009698979797碾压后极片厚度均值：98μ碾压厚度标准：103±4μ横向极差：第一条5μ，第二条4μ，第三条5μ纵向极差：第一条5μ，第二条6μ，第三条5μ碾压压缩比率：（155-98）/155*100％＝36.77％1100101102103102102101100999910010021011011031021021031041021001011001023991009910110310410310210210110099力神极片碾压后厚度碾压后极片厚度均值：101μ碾压厚度标准：103±4μ纵向极差：第一条3μ，第二条4μ，第三条5μ碾压压缩比率：（165-101）/165*100％＝38.79％4.极片涂敷量对比10.17510.1750.17520.17530.17520.17480.17490.17550.17530.17540.175420.17460.17480.17490.17480.17490.17480.17430.17460.17480.1750.175230.17630.17540.17580.17560.17520.17540.1750.17510.17550.17530.175840.17480.17550.17560.17530.17490.17470.17490.17440.17430.17510.174950.17570.1760.17580.17540.17570.17510.17560.17520.17550.17550.175660.17560.17550.17550.17540.17530.17480.17530.17530.17530.17560.1759世韩极片碾压前涂敷量极片碾压前涂敷量均值：0.1752横向极差：第一条0.0006，第二条0.0009，第三条0.0013纵向极差：第一条0.0013，第二条0.0009，第三条0.0011世韩极片碾压后涂敷量10.17510.17440.17480.17460.17410.17460.17450.17490.17460.17460.174620.17510.1750.17480.17510.17510.17510.17510.17460.17470.17490.174730.17460.17440.17440.17410.17450.17460.17460.17450.17450.17460.174640.17430.17520.17460.17460.17420.17450.17450.17540.17430.17450.174650.17490.17460.17430.17420.17420.17450.17380.17450.17440.17440.174660.17420.17460.17460.1750.17470.17470.17430.17420.17460.17430.1741极片碾压后涂敷量均值：0.1746碾压前后涂敷量变化比率：（0.1752-0.1746）/0.1752*100％＝0.3425％10.17550.17540.17580.17560.17610.17660.17650.17690.17560.17560.176620.17510.17550.17580.17610.17680.17510.17510.17560.17570.17590.175730.17560.17640.17540.17510.17450.17460.17560.17550.17650.17660.1768力神极片碾压后涂敷量极片碾压后涂敷量均值：0.1758碾压前后涂敷量变化比率：（0.1763-0.1758）/0.1763*100％＝0.2836％5.极片粘结力世韩负极力神负极世韩负极粘结力400～500gf，力神负极粘结力260～300gf。6.SEM&EDS未碾压极片SEM：世韩负极未碾压极片断面SEM：未碾压极片断面EDS：ElementWt%At%CK53.9780.48OK07.0107.84AlK00.7600.50SiK00.4600.30PK00.8500.49ClK00.3100.16CuK23.3506.58ZnK13.2903.64未碾压极片断面EDS：ElementWt%At%CK49.3979.08OK06.4707.78AlK00.8900.64SiK00.4500.31PK00.0000.00PtM03.4800.34ClK00.3500.19CuK23.5907.14ZnK15.3804.52已碾压极片EDS对比：ElementWt%At%CK92.6496.23OK01.1900.92FK03.5402.33CuK02.6400.52世韩负极ElementWt%At%CK95.5897.16FK04.4202.84力神负极已碾压极片断面SEM对比：世韩负极力神负极已碾压极片断面EDS对比：ElementWt%At%CK48.0575.89OK07.7509.19