发明授权
US09203084B2 Cathode active material-coated discrete graphene sheets for lithium batteries and process for producing same 有权
用于锂电池的阴极活性材料涂层离散石墨烯片及其制造方法

Cathode active material-coated discrete graphene sheets for lithium batteries and process for producing same
摘要:
Provided is a cathode (positive electrode) of a lithium battery and a process for producing this cathode. The electrode comprises a cathode active material-coated graphene sheet and the graphene sheet has two opposed parallel surfaces, wherein at least 50% area (preferably greater than 80%) of one of the two surfaces is coated with a cathode active material coating. The graphene material is in an amount of from 0.1% to 99.5% by weight and the cathode active material is in an amount of at least 0.5% by weight (preferably greater than 80% and more preferably greater than 90%), all based on the total weight of the graphene material and the cathode active material combined. The cathode active material is preferably an inorganic material, an organic or polymeric material, a metal oxide/phosphate/sulfide, or a combination thereof. Also provided is a lithium battery, including a lithium-ion, lithium-metal, or lithium-sulfur battery.
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