▎ 摘　　要

NOVELTY - Rice-shaped manganese carbonate composite graphene high-performance lithium storage material is claimed. The preparation of rice-shaped manganese carbonate composite graphene high-performance lithium storage material comprises (i) dissolving manganese salt and alkali in water, carrying out reaction by stirring, washing reaction solution and centrifuging to obtain precursor particles, (ii) stirring precursor particles obtained in step (i) and reacting with graphene, carbonate, and small molecular organic acid for 10-30 minutes, sealing, adding mixture into reactor, transferring reactor to oven for reacting, cooling to room temperature after reaction, discarding supernatant of reactor, treating the product with ethanol, washing with water and freeze-drying to obtain final product. USE - The rice-shaped manganese carbonate composite graphene high-performance lithium storage material is useful for preparing lithium-ion battery. ADVANTAGE - The rice-shaped manganese carbonate composite graphene high-performance lithium storage material: has regular appearance, uniform size, uniform particle size distribution compared with existing in market, high structural stability, large specific surface area, high surface activity. The method: is simple, easy to control, non-toxic, harmless, is suitable for mass-production. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) Lithium-ion battery containing rice-shaped manganese carbonate composite graphene high-performance lithium storage material; (2) Preparing lithium-ion battery containing rice-shaped manganese carbonate composite graphene high-performance lithium storage material.