石墨烯导电剂的研究和展望

Research and prospect of graphene conductive additive

石墨烯作为新型炭材料,有着极其优异的导电性,同时其二维平面结构可以和电极材料形成点面接触,可构建一个广阔连续的导电网络,对解决当前电池充电速度慢和高倍率下循环差的问题有着十分重要的意义。本文从石墨烯与传统导电剂的电化学性能对比切入,详细说明了石墨烯导电剂的优良性能、石墨烯复合导电剂的性能和影响因素以及石墨烯均匀分散这一难题,并展望了石墨烯导电剂的市场需求和发展趋势。

Graphene, as a new type of carbon material, has extremely excellent conductivity. Its two-dimensional planar structure can contact the point to plane with the electrode material, and can construct a broad continuous conductive network, which is of great significance for solving the problem of slow battery charging speed and poor cycle ratio under high rate. In this paper, from the view of comparison of the electrochemical performance between graphene and traditional conductive additives, the excellent performance of graphene conductive additive , and the performance and influencing factors of graphene composite conductive additive were introduced, and the problem of homogeneous dispersion of graphene was proposed in detail. The agent market demand and the development trend on graphene conductive additive were prospected.