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|1. (WO2018120147) METHOD FOR PREPARING GRAPHENE/TERNARY MATERIAL COMPOSITE FOR USE IN LITHIUM ION BATTERIES AND PRODUCT THEREOF|
|Applicants:||BEIJING TUNGHSU CARBON ADVANCED MATERIALS TECHNOLOGY CO., LTD.
TUNGHSU GROUP CO., LTD.
|Title:||METHOD FOR PREPARING GRAPHENE/TERNARY MATERIAL COMPOSITE FOR USE IN LITHIUM ION BATTERIES AND PRODUCT THEREOF|
Provided is a method for preparing a graphene/ternary material composite for use in lithium ion batteries, comprising the following preparation steps: (a) mixing a ternary material and a graphene oxide powder in an organic solvent to form a mixed dispersion; (b) adding a reducing agent to the mixed dispersion in step (a), and carrying out a reduction reaction at a reduction temperature of 80°C to 160°C while stirring the mixed dispersion, to obtain a reduction reaction mixture after a reduction time of 60 min to 240 min; and (c) evaporating a solvent in the reduction reaction mixture in step (b) while stirring the reduction reaction mixture, and drying a product and then annealing the product at a low temperature in an inert atmosphere to obtain a graphene/ternary material composite having a three-dimensional network structure. Also provided is a graphene/ternary material composite prepared by using this method.