锂离子电池炭负极材料的研究概况

CARBON NEGATIVE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES: A REVIEW

综述了作为锂离子电池炭负极材料的石墨类、非石墨类、纳米材料等方面的研究成果,介绍了上述各种材料的特点。通过对石墨类材料的改性,在炭材料中形成纳米级孔、洞、通道等都可能提高锂的可逆贮量和减少不可逆容量损失,有利于负极比容量的提高,从而有利于进一步提高锂离子电池的比能量。

The achievements of studying carbon negative electrode materials including graphite, nongraphite and nanosized materials for lithium ion battery have been reviewed and discussed in terms of the peculiar properties of these materials. The formation of pores, caves and channels in nanometer range in carbon materials by modifying graphite help increase the amount of lithium that can be reversibly stored, and to minimize the irreversibly capacity losses at the same time, and this further results in increase in the specific capacity of carbon negative electrode, and finally in the energy density of the battery.