| abstract |
The invention relates to a preparation method of a doped ternary material coated by polyaluminium-graphene, which is characterized by comprising the following steps of: and mixing the polyvinylpyrrolidone, the liquid medium, the graphene powder and the polyaluminium, so as to obtain a polyaluminium-graphene solution. Further adding a solution doped with a ternary material, adding ammonia water, aging, filtering, washing, vacuum drying and temperature programming sintering to prepare the layered alpha-NaFeO 2 The doped ternary cathode material has a structure and is coated with the polyaluminium-graphene. |