| abstract |
The invention discloses graphene powder and a preparation method and a lithium ion battery containing the graphene powder. The graphene powder contains pyrazolone structured molecule, the preparation method is as follows: graphite oxide is reduced in the presence of pyrazolone structured molecule to obtain the graphene powder. The graphene powder has high dispersion and high electrical conductivity in a polar solvent, can be used as a conductive additive used in lithium ion battery electrode paste, is easy to disperse in the electrode paste, can significantly improve the conductivity of the electrode, is suitable for a lithium ion secondary battery having the advantages of high-rate charge/discharge and high cycle maintaining rate, and can also be applied to the conductive material, antistatic material, electronic product electromagnetic shielding material, microwave absorbing material, and other fields. |