1、LOGO安徽壹石通材料科技股份有限公司安徽壹石通材料科技股份有限公司材料让生活更美好材料让生活更美好1勃姆石简介勃姆石简介v 勃姆石又称软水铝石，分子式为AlOOH，颗粒形貌为均匀的立方体，具有耐热温度高，硬度低，与有机物相容性好等特点。可有效应用于锂电池涂层材料、工程塑料的改性剂，电线电缆等有机物的阻燃剂等。2XRD3Lithium Battery4Lithium battery separator 隔膜是锂电池必备的内层组件，主要功能是电子绝缘离子导通，即隔离正负极防止短路，同时让电解液中的离子通过。Why 涂覆无机颗粒？涂覆无机颗粒？现有隔膜涂覆工艺主要使用：Al2O3 缺点：涂层厚度缺
2、点：涂层厚度5um对涂覆设备的磨损严重对涂覆设备的磨损严重涂覆无机颗粒的作用：涂覆无机颗粒的作用：可以在电池过热时受热膨胀，通过闭孔功能来阻隔电流传导，防止过充和爆炸。不涂覆：孔不闭合不涂覆：孔不闭合 or 闭孔温度过高闭孔温度过高5锂电池隔膜生产工艺锂电池隔膜生产工艺67Why 勃姆石？勃姆石？Al2O3 Al2O3 产品特性产品特性隔隔膜膜Boehmi teLi+Li+Li+Li+Li+Li+Li+Li+u板状结构，涂层后有缝隙，不影响锂离子的穿透和隔膜的透气性8产品特性产品特性隔隔膜膜Boehmi teu具有优异的绝缘性，电池工作放热时膨胀，有效阻断电流。项目项目含量含量(ppm)Cu5
3、Ca500Fe50Na5009产品特性产品特性BOEHMITE碳酸酯类有机溶剂锂盐含硫有机溶剂醚类有机溶剂u具有足够的化学和电化学稳定性，不会被电解液腐蚀10产品特性产品特性PP/PEBOEHMITE可涂厚度：可涂厚度：2um5um涂层厚度均匀热稳定性优良低硬度，减少机械磨损u粒度小，颗粒均匀，可以有效降低涂层厚度并保证厚度的均匀性u耐热性优良，有效提高隔膜在锂电池工作放热时的热稳定性u硬度低，减少涂层材料对于机械的磨损11产品指标产品指标项目项目单位单位BG-613BG-611外观-白色粉末白色粉末平均粒径um1.53.00.51.0AlOOH(勃姆石含量）%99.9599.95Ca 钙含量
4、ppm500500Fe 铁含量ppm5050Cu 铜含量ppm55Na 钠含量ppm500500 pH-7.08.57.08.5比表面积 m2/g3.08.53.08.5 水分ppm2000200012产品产品SEMBG-611BG-611BG-613WBG-613W13产品产品PSDBG-611BG-6131415Why 壹石通壹石通 better?他社勃姆石他社勃姆石Test results ITEMUnitJapan Al2O3BG-611HJA-0719D50um0.650.680.64S.S.Am2/g4.67.088.7Viscositycps-41.936.8Slurry sta
5、bility-The same level as Japan Al2O3The same level as Japan Al2O3Specific Gravityg/cm33.93.63.9 The specific gravity values are ideal values.Remarks:Since the specific gravity of boehmite is lighter than alumina,we suggest that the adding proportion of boehmite should be reduced compare to alumina.H
6、JA-0719 is standard type of 0.7um roundish alumina which produced by Sphere company.BG-611 5KXBG-611 10KXLithium battery separator coated with BG-611(B company)Coating with Boehmite BG-611HJA-0719 10KXHJA-0719 5KXLithium battery separator coated with HJA-0719(B company)Coating With Roundish Alumina
7、HJA-0719 HJA-0719 is standard type of 0.7um roundish alumina which produced by Sphere company.ItemBase filmBG-611HJA-0719 Japan Al2O3Thickness（m）15.22019 19Air permeability（s/100mL）200.2 230.0 230.0 215.6Areal density(g/m2)8.8 14.014.2 14.01051 h shrinkage（）MD1.2(902h)1.2 1.2 1.91301h shrinkage（）MD3
8、.0(1051h)2.72.83.4Sheet resistance（cm2）0.82 1.511.501.45Peel strength（N/m）/54.4 50.8 55.9Moisture（ppm）/12781637964Test results HJA-0719 is standard type of 0.7um roundish alumina produced by Sphere company.HJA-0719SWE high purity type of 0.7um roundish alumina can be provided.v 1.Boehmite BG-611 can replace Japan Al2O3,used in the production of lithium battery separator coating.v 2.Moisture of HJA-0719 is higher than BG-611 and Japan Al2O3,need to improve.Conclusion BG-611 is a good filler for Lithium battery separator coating.THANK YOU！22安徽壹石通材料科技股份有限公司
