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球形石墨
主要用途 规格型号 技术指标

 

       球形石墨是以优质高碳天然鳞片石墨为原料、采用先进加工工艺对石墨表面进行改性处理,生产的不同细度,形似椭圆球形的石墨产品。
Using high quality natural flake graphite as raw material, Spherical graphite is made through advanced processing technology to modify the surface of graphite, and then graphite products with different fineness and spherical forms are produced.

      衡量球形石墨品质的主要指标
      The main indexes to measure the quality of spherical graphite

      球形石墨材料具有良好的导电性,结晶度高,成本低,理论嵌锂容量高,充放电电位低且平坦等特点。是目前锂离子电池负极重要材料,是国内外锂离子电池负极材料的换代产品。具有优良的导电性和化学稳定性、充放电容量高、循环寿命长、绿色环保。球形石墨加工过程:首先在球形石墨车间中将石墨干精矿经粗碎、修整、磁选等工序形成初始产品,再进入纯化车间经高温纯化后成为球形石墨(高纯)。
      Spherical graphite material has good conductivity, high crystallinity, low cost, high theoretical lithium capacity, charge discharge potential is low and flat, is present as an important part of anode materials for lithium ion batteries, is the product of anode materials for lithium ion battery production at home and abroad. It has excellent electrical conductivity and chemical stability, high discharge capacity, long cycle life, green environmental protection. Spherical graphite processing: first in the workshop will workers dry spherical graphite graphite concentrate by crushing, dressing, magnetic separation process to form the initial product, then it is purified under high temperature in purification workshop to become spherical graphite (high purity).

      物理性能指标包括粒径(D50,μm)、振实密度(g/cm3)、比表面积(m2/g)、水份(%)、固定碳(%)
      The physical performance indicators: including particle size (D50, m), g/cm3 (density), specific surface area (m2/g), moisture (%), fixed carbon (%)
      电化学性能指标包括库仑效率(%)、充电容量(mAh/g)、循环寿命(cycles)
      Electrochemical performance indicators: coulomb efficiency (%), charge capacity (mAh/g), cycle life (cycles)