贝特瑞石墨负极材料介绍

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918-III产品介绍BTRNEWENERGYMATERIAILSINS.深圳市贝特瑞新能源材料股份有限公司BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.产品目录12345产品特点物理性能电化学性能4应用方案BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.2918918-II918-IIIBTR第一代产品—固相包覆BTR第二代产品--液相包覆BTR第三代产品—液相包覆918产品成长历程BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.1产品特点天然石墨内核粘接力强包覆均匀电解液中的稳定性好液相包覆容量高石墨化度高循环性能好压实密度高BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.2.1产品规格(暂定)项目Item单位Unit标准Specification测试仪器TestingInstrument测试标准TestingSpecification粒度分布Particlesized10d50d90µm9.0-13.017.0-23.027.0-36.0马尔文MalvernMASTERSIZER2000ISO13320激光粒度仪标准GB/T19077.1-2003粒度分析-激光衍射法水分Moisture%≤0.1梅特勒-托利多卡氏水分滴定仪GB/T606-2003化学试剂水分测定通用方法卡尔·费休法灰份Ash%≤0.1SARTORIUS-BP121SMuffleFurnace-KSWGB/T3521-95石墨化学分析方法振实密度TapDensityg/cm³≥0.85康塔QuantachromeAutotapDAT-3GB/T5162-1985金属粉末—振实密度的测定真密度TrueDensityg/cm³2.20-2.26康塔QuantachromeUPYC1000---BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.2.1产品规格(暂定)比表面积SSAm²/g3.5-5.5康塔QuantachromeNOVA1000eGB/T19587-2004气体吸附BET法测定固态物质比表面积粉末压实比PelletDensityg/cm3≥1.90USACaver-----层间距d(002)À3.360±0.003帕纳科XRDX'PerpPro---放电容量mAh/g≥360Half-CellEvaluationGB/T18287-2000蜂窝电池锂离子电池总规范库仑效率%≥93.0Half-CellEvaluationGB/T18287-2000蜂窝电池锂离子电池总规范微量元素Feppm≤50PEICPThermoAAS---BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.2.2SEMBTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.2.3XRDBTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.3.1模拟电池测试条件与结果模拟电池测试为制作成2430型电池,测试条件如下:1、电解液:1M-LiPF6EC/DMC/EMC2、粘结剂:PVDF:5%3、导电剂:Super-P:3%4、对电极:纯锂片5、充放电制度(A)恒流放电(0.3mA,0.001V)(B)静置(1min)(C)恒流充电(0.3mA,2.000V)BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.4应用方案正极LCOSPHSV90095.5%2.5%2.0%负极CSPCMCSBR94.5%2.0%1.5%2.0%温馨提示:1、在配方中适当增加SP用量或添加BTR的导电石墨,效果更佳。2、上述配方及设计是依据BTR的条件测试,可根据不同要求做相应调节1、配方2、设计正极:容量设计145-147mAh/g负极:容量设计345-350mAh/g过量:负极过量5-8%BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.4.2极片压实性能测试1.001.201.401.601.802.002.202.03.04.05.06.07.08.09.010.0压实密度g/cc压力大小Mpa918-Ⅲ压实性能注:1.极片双面面密度185g/cm32.CMC:1.3%,SBR:2.0%,SP:1%BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.4.3极片反弹性能测试0.0%1.0%1.9%2.9%0.0%1.0%3.0%4.0%0.0%0.5%1.0%1.5%2.0%2.5%3.0%3.5%4.0%4.5%5.0%051015202530反弹率(相对于滚压后)存储时间h压实比1.75g/cm3注:1.测试时间分别为0.5h,2h和24h2.极片双面面密度185g/cm33.CMC:1.3%,SBR:2.0%,SP:1%BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.4.4极片粘接强度测试材料型号拉力(mN/mm)平均值918-Ⅲ7.807.295.967.02备注:1.负极极片采用未滚压的极片,只测试光面2.标准≥1mN/mm步骤:(1)将单面极片裁切成恒定的小条(负极只测试光面);(2)将极片用3M双面胶粘接在不锈钢板上;(3)电机以恒定的速率上升,直至粉体完全剥离完毕;目的:评估粉体材料与集流体之间的粘结性能BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.4.5吸液性能的测试0.02.04.06.08.010.012.01.551.651.751.85吸液时间min高压实下良好的吸液性能极片压实比g/cm3注:1.极片双面面密度206g/cm32.CMC:1.3%,SBR:2.0%,SP:2%BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.4.6循环性能50.0%55.0%60.0%65.0%70.0%75.0%80.0%85.0%90.0%95.0%100.0%105.0%050100150200250300350S3012ATC-E231HS3012A电解液100周:99.1%TC-E231H电解液100周:92.5%常温下,表现出优异的循环性能BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.4.6循环性能低温负10度0.2C充放100周92%以上50.0%55.0%60.0%65.0%70.0%75.0%80.0%85.0%90.0%95.0%100.0%105.0%050100150200250300S3012ATC-E231HS3012A电解液100周:92.7%TC-E231H电解液100周:94.5%高温下,表现出优异的循环性能BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.4.6循环性能918-Ⅲ低温负10度循环图80.0%82.0%84.0%86.0%88.0%90.0%92.0%94.0%96.0%98.0%100.0%102.0%0204060801001201.65-12#低温负10度0.2C充放100周92%以上低温下,表现出优异的循环性能汇报完毕,谢谢!BTRNEWENERGYMATERIAILSINS.BTRNEWENERGYMATERIAILSINS.

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