不同乙炔炭黑对涂炭铝箔性能的影响  

Effect of different acetylene carbon black on properties of carbon coated aluminum foil

作　　者：韦宗辰 王胜杰 邱诗铭[1,2] WEI Zongchen;WANG Shengjie;QIU Shiming(Guangxi Minzu Normal University,Chongzuo Guangxi 532200,China;Guangxi Key Laboratory for High-value Utilization of Manganese Resources,Chongzuo Guangxi 532200,China)

机构地区：[1]广西民族师范学院化学与生物工程学院,广西崇左532200 [2]广西锰资源高值化利用重点实验室,广西崇左532200

出　　处：《电源技术》2024年第9期1794-1799,共6页Chinese Journal of Power Sources

基　　金：广西民族师范学院博士启动基金(2021BS003)。

摘　　要：采用三种不同的乙炔炭黑为原材料,通过扫描电子显微镜(SEM)、比表面积(BET)、激光粒度仪等对乙炔炭黑进行表征与分析。测试加入不同乙炔炭黑的浆料的稳定性和粘度变化,通过凹版涂布工序制得涂炭铝箔并进行电性能测试分析,评估三种乙炔炭黑对涂炭铝箔性能的影响。结果表明:实验室所用的乙炔炭黑颗粒团聚粒度分布在8μm左右,比表面积约为60 m^(2)/g,SP-009和Li-2060表面粗糙,具有蓬松的孔状结构,有利于活性物质嵌入,增大活性物质与箔材的接触面积。配制成浆料后,SP-009在三者中沉降最少,分散性和稳定性较好。SP-009的涂炭铝箔电阻率最小且较为集中,均值为1.95 mΩ,电阻越小,性能最优。将三者制成的电池循环性能进行对比,SP-009的电池经过循环100次后容量保持率最高,为84.46%。SP-009乙炔炭黑性能较好,提高了浆料的稳定性和涂炭铝箔的导电性能。This article uses three different types of acetylene black as raw materials,and characterizes and analyzes acetylene black through SEM,BET,laser particle size analyzer,etc.Test the stability and viscosity changes of slurries containing different types of acetylene carbon black.Prepare carbon coated aluminum foil through the gravure coating process and conduct electrical performance testing and analysis to evaluate the impact of three types of acetylene carbon black on the performance of carbon coated aluminum foil.The results show that the particle size distribution of acetylene carbon black particles used in the laboratory is about 8μm,and the specific surface area is about 60 m^(2)/g.The surface of SP-009 and Li-2060 is rough and has a fluffy pore structure,which is conducive to the embedding of active substances and increases the contact area between active substances and foil.After the slurry was prepared,SP-009 had the least sedimentation,better dispersion and stability among the three.The resistivity of carbon-coated aluminum foil of SP-009 is the smallest and more concentrated, with an average value of 1.95 mΩ. The smaller the resistance, the better the perfor‐mance. Comparing the cycling performance of the batteries made of the three, SP-009 has the highest capacity retention rate after 100 cycles, at 84.46%. In summary, SP-009 acetylene black has good per‐formance, improving the stability of the slurry and the conductivity of the coated aluminum foil.

关 键 词：乙炔炭黑 导电性 涂炭铝箔 

分 类 号：TM[电气工程]