公开(公告)号：US09203084B2

公开(公告)日：2015-12-01

申请号：US13987567

申请日：2013-08-08

申请人： Yanbo Wang ,  Bor Z Jang ,  Hui He ,  Aruna Zhamu

发明人： Yanbo Wang ,  Bor Z Jang ,  Hui He ,  Aruna Zhamu

IPC分类号： H01M4/36 ,  H01M4/04 ,  H01M4/02 ,  H01M10/056

CPC分类号： H01M4/366 ,  H01M4/04 ,  H01M4/0421 ,  H01M4/13 ,  H01M4/139 ,  H01M4/625 ,  H01M10/056 ,  H01M2004/028 ,  Y10T156/1075

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.

摘要翻译： 提供锂电池的阴极（正极）和制造该阴极的工序。 电极包括阴极活性材料涂覆的石墨烯片，并且石墨烯片具有两个相对的平行表面，其中两个表面中的一个表面的至少50％面积（优选大于80％）涂覆有阴极活性材料涂层。 石墨烯材料的量为0.1重量％至99.5重量％，正极活性物质的量为至少0.5重量％（优选大于80重量％，更优选大于90重量％），均基于 石墨烯材料和阴极活性材料的总重量相结合。 阴极活性材料优选为无机材料，有机或聚合材料，金属氧化物/磷酸盐/硫化物或其组合。 还提供了包括锂离子，锂金属或锂硫电池的锂电池。