常规电芯材料测试方法介绍

1、常规电芯材料测试项目及方法介绍,技术部,2010-01-25,2020/4/17,1,2,概要,2020/4/17,3,概要,?,材料简介,?,检测项目,?,检测设备,?,检测方法,2020/4/17,1.,溶剂,NMP,?,NMP(N-,甲基吡咯烷酮,),用作搅拌溶剂化学名,: N-Methyl-2-polyrrolidone ,分子式,C5H9NO .,结构式,:,4,N-,甲基吡咯烷酮为稍有氨味的液体，与水以任何人比例混溶，几乎与所有,溶剂（乙醇、乙醛、酮、芳香烃等）完全混合。沸点,204,C,，闪点,95,C,。,NMP,是一种极性的非质子传递溶剂，具有毒性小，沸点高，溶解能力出众，,

2、选择性强和稳定性好的优点。,序号,1,2,检测项目,规格,（举例）,透明，无色液体, 99.8,单位,/,%,检测仪器及方法,目检,GC-MS,外观,纯度,3,4,5,色度,水分含量,密度,20,2000,/,ppm,Kg/m3,Pt-Co,色标,K-f Moisture analyzer,25,o,C,，密度仪,2020/4/17,2.,粘接剂,PVDF,?,PVDF (,聚偏二氟乙烯,),用做增稠剂和粘接剂,白色粉末状结晶聚合物，相对密度,1.751.78,。具有极其良好的抗紫外线,性和耐气候老化性，其薄膜在室外放置一二十年也不硬脆龟裂。聚偏氟,乙烯的介电性能特异，介电常数高达,6,8,（

3、,MHz,60Hz,），介质损耗角,正切值也很大，大约在,0.020.2,之间，体积电阻稍低，为,2,1014.cm,。,其长期使用温度为,-40,+150,在这段温度范围内，聚合物有着很好,的机械性能。它的玻化温度,-39,，脆化温度,-62,以下，,结晶熔点约,170,，热分解温度,316,以上,序号,1,2,3,检测项目,外观,熔点,水分,规格,（举例）,白色粉末，无味，无污染物,170-180,1000,单位,/,o,C,ppm,检测仪器及方法,目检,DSC,K-F Moisture analyzer,5,2020/4/17,3.,导电剂,?,Super-P,导电碳黑,纯黑色的细粒或粉

4、状物。不溶于水、酸和碱。能在空气中燃烧。用于确,保活性氧化物颗粒与集流器的接触以及内部颗粒的最佳接触，控制电极,的多孔性、使电解质理想地接触氧化物颗粒，并具有较低或者非常低的,添加量，就可以提高导电性能；且对电化学机理无影响,序号,1,2,3,4,5,6,6,检测项目,外观,灰分,*,水分,规格,（举例）,精细的黑色粉末,0.05,0.3,62,5,0.05,10,单位,%,%,m2/g,%,ppm,检测仪器及方法,目检,烘箱,K-F Moisture analyzer,NOVA-1000;,吸附质：高纯,N2,；,BET,管：,9mm,带大球短管,ICP or AAS,ICP or AAS,

5、比表面积,S content,Fe content,7,Ni content,10,ppm,ICP or AAS,2020/4/17,4.,正极活性物质,?,钴酸锂,LiCoO2,灰黑色粉状物。,序号,*1,*2,*3,*4,*5,*6,检测项目,外观,颗粒度,D10(,体积分布,),颗粒度,D50(,体积分布,),颗粒度,D90(,体积分布,),颗粒度,D99(,体积分布,),颗粒度,D10(,数量分布,),规格,（举例）,黑色粉末,3.0,7.5,2.0,18.0,50.0,1.0,m,m,m,m,m,Master Size 2000,Laser Particle,Size analyse

6、r;Hydro 2000MU(A);,样,品量,:5g;,样品超声,10min;,分散剂：,water,折射率：,1.330,单位,检测仪器及方法,目检,7,*7,比表面积,0.5,0.2,m2/g,NOVA1000;BET;,吸附质：高纯,N2,（,99.99%,）,BET,管：,9mm,带大球短管,仪器：,Quantachrome Autotap,振动,频率,: 23s/100,次,振幅,: 5mm,振动次,数,: 5000,次,量筒,100 ml,样本量,70ml,振实密度,*8,2.6,0.3,g/ml,2020/4/17,4.,正极活性物质,序号,9,10,检测项目,能量密度,水分,

7、PH,酸碱度,*11,12,13,14,15,*16,*17,*18,*19,20,21,22,23,晶体结构,微观表面形态,钴含量,锂含量,铁含量,铅含量,钛含量,锌含量,铜含量,钙含量,钠含量,镁含量,镍含量,锰含量,实测,实测,59.3-60.7,6.6-7.4,0.0050,0.0050,0.0050,0.0050,0.0050,0.0100,0.0050,0.0100,0.0100,0.0150,/,/,%,%,%,%,%,%,%,%,%,%,%,%,规格,（举例）,140,0.1,10.5,0.5,/,单位,mAh/g,%,检测仪器及方法,K-F moisture analyzer

8、,8,Half cell,，,0.1C to 4.2V ,0.1C to,3.0V,钴酸锂与蒸馏水重量比,1:10,，,混合均,匀,密闭静置,2h,后测度,仪器,:PHS-3C PH,计,XRD,SEM,3000X,电位滴定,AAS or ICP,AAS or ICP,AAS or ICP,AAS or ICP,AAS or ICP,AAS or ICP,AAS or ICP,AAS or ICP,AAS or ICP,AAS or ICP,AAS or ICP,2020/4/17,25,24,5.,铝箔,?,铝箔,Al foil,合金牌号；合金状态,呈金属铝色泽。,序号,1,9,检测项目,A

9、ppearance,外观,规格,（举例）,色泽均匀，无明显凹点、划痕无翘边和波浪边，切面平整,uniformity color, no,concave, no nick, no warp, smooth surface,单,位,/,um,g/m,2,检测仪器及方法,naked eyes,目检,2,3,Thickness,厚度,单位面积重量,Area weight,抗拉强度,Pull,strength,16,2,千分尺,电子天平,(0.0001g),43,5,4, 155,Mpa,%,%,%,%,拉力机,5,6,7,8,Prolongation,ratio,延伸率,Al, 1.0, 99.0,拉

10、力机,AAS,AAS,AAS,Si,Cu,0.2,0.2,9,10,11,Mn,Fe,Zn,0.05,0.5,0.1,%,%,%,AAS,AAS,AAS,2020/4/17,6.,负极活性物质,?,活性物质,MCP,序号,*1,*2,*3,*4,*5,项目,外观,颗粒度,D10(,体积分布,),颗粒度,D50(,体积分布,),颗粒度,D90(,体积分布,),颗粒度,D99(,体积分布,),规格,黑色粉末,xx,xx,2.0,xx,xx,m,m,m,m,单位,检测仪器及方法,naked eyes,目检,10,Master Size 2000,Laser Particle,Size analyse

11、r;Hydro 2000MU(A);,样,品量,:5g;,样品超声,10min;,分散剂：,water,折射率：,1.330,2020/4/17,6.,负极活性物质,序号,*6,项目,比表面积,规格,xx,0.2,单位,m2/g,检测仪器及方法,11,NOVA1000;BET;,吸附质：高纯,N2,（,99.99%,）,BET,管：,9mm,带大球短管,仪器：,Quantachrome Autotap,振动频率,:,23s/100,次,振幅,: 5mm,振动次数,: 5000,次,量筒,100 ml,样本量,70ml,K-F moisture analyzer,SEM,XRD,振实密度,*7,

12、8,9,10,水,分,微观形貌,晶体结构,xx,0.3,900,实,实,测,测,/,/,g/ml,ppm,11,12,13,14,15,16,17,18,19,灰分,固定碳含量,第一次放电容量,第一次放电效率,真实密度,铁含量,硫含量,硅含量,铜含量,0.3,99.7,340,87,2.1,50,10,10,50,10,%,%,mAh/g,%,g/ml,ppm,ppm,ppm,ppm,ppm,样本量,2g,马弗炉,800,度,5-6,小时至恒重,样本量,2g,马弗炉,800,度,5-6,小时至恒重,Half cell 0.05C to 5.0mV ,0.1C to 2.0V,Half cell

13、 0.05C to 5.0mV ,0.1C to 2.0V,丁醇,(,重量置换,),或,XRD,计算,ICP,光谱仪,ICP,光谱仪,ICP,光谱仪,ICP,光谱仪,ICP,光谱仪,20,钼含量,2020/4/17,7.,铜箔,?,铜箔,Cu foil,呈红色。,12,序号,1,2,3,项目,外观,厚度,单位面积重量,规格,色泽均匀，无明显凹点、划痕无翘边和波浪边，切面平,整,16,3,131,3,单位,检测仪器及方法,naked eyes,目检,um,g/m2,千分尺,电子天平,(0.0001g),4,5,6,7,8,抗拉强度,延伸率,纯度,表面达因系数,抗氧化性, 30.0, 3.0, 9

14、9.8, 38,No oxidation, no change color,无氧化,无变色,kg/mm2,%,%,拉力机,拉力机,AAS,表面达因系数测试笔,Oven,烘箱,(160,C 10 Min),2020/4/17,8.,隔离膜,?,隔离膜,序号,*1,*2,*3,4,*5,6,7,8,项目,外观,Gurley (AVG),面密度,(AVG),收缩率,厚度,MD,抗张强度,TD,抗张强度,MD,延长率,规格,白色，平滑，,无划痕，无凝胶点，无黑,色斑点,xx,xx,xx,xx,xx,xx,xx,Seconds,mg/cm2,%,m,单位,检测仪器及方法,naked eyes,目视,13

15、,4150N Gurley densometer,透气度,测定仪,精密天平（,0.0001g),Oven, 90,C /1h,Micrometer,千分尺,kg / cm2,INSTRON tester Model 4201,kg / cm2,INSTRON tester Model 4201,%,INSTRON tester Model 4201,9,10,11,12,TD,延长率,针刺强度,针孔,熔点,xx,xx,None allowed,Peak1:xx,5 Peak2:xx,5,%,Grams,count,C,INSTRON tester Model 4201,Penetration

16、test,穿透测试,Alcohol,Light box,酒精，照光箱,DSC,2020/4/17,9.,胶纸,序号,1,14,项目,总厚度,规格,0.06,0.005,单位,mm,检测仪器及方法,千分尺,2,3,4,宽度,粘接,强度,抗电解液性能,W,0.5,0.06,mm,N/mm,游标卡尺,粘在,PET,膜上撕开,拉力计,不分层,不松脱,棕黄色,贴在铝箔上在85电解液中浸泡,4,小时,目视,5,颜色,2020/4/17,10.,极耳,?,铜,/,镍,/,铝极耳,序号,1,2,3,4,5,6,7,7,项目,外观,宽度,厚度,抗拉强度,抗折次数,15,规格,表面无污迹，生锈，氧化,3.0,0.

17、1,0.10,0.01,60,5,单位,检测仪器及方法,目视,mm,mm,N,times,卡尺,千分尺,拉力测试仪,平口钳,/,专用测试仪,60,度,24,小时浸泡,抗电解液,封装拉力,焊接拉力,无脱落,25,25,N,N,简易封装机,目视,/,拉力计,恒温电烙铁,超声波焊接机,2020/4/17,11.,包装膜,?,铝塑膜,No,项目,1,2,3,4,污渍斑点,污渍斑点,划痕,成型性能,16,规格,直径小于,1.0mm, 3m,长内，小于,1.0mm,的点不超过,1,个,直径小于,1.0mm, 3m,长内，小于,1.0mm,的点不超过,1,个,不允许多条划痕并列，规定性单条划痕长度不允许超,

18、过,0.5m,，不允许有双面可以看到的划痕,CPP/AL,之间不分层,Al/on,之间不分层,冲成型区无开裂,角位不变色,回弹率小于,55,方法,目视,样品,目视,样品,目视,样品,转角圆角,R=1.0mm,直边圆角,R=0.6mm,拔模角,6,深度,d=5mm max,冲压速度,s=200mm/min,成型,后测深度，静置,2,小时后再测一次深度，计算回,弹率,封装条件,温度,200degC,5,封装性能,剥离强度,冲爆强度,20N/8MM MIN,粘接强度,2.0N/mm Min (ref),测试方法见附图定义,6,7,8,粘接均匀性,al/cpp,层剥离,强度,抗电解液性能,将封装区,CPP,与,CPP,撕开，两面为均匀白色，参考样品,5N/10mm (7N/15mm）,边缘无分层,湿态剥离强度,1N/10mm(ref),热封强度,time: 2S,封装压力,0.2Mpa.,封装条件，温度,200degC,热封强度,time: 3S,封装压力,0.2,0.4Mpa.,剥离速度,200,240 mm/min,剥离角度,180,度,电解液成分（,EC,：,DEC,1,：,1,，,1M LiPF6),将样品切成,10mm,小片放入电解液中，在,85,度下密,闭烘烤,4,小时，测,CPP,与,al,之间的拉力。,2020/4/17,12.,电