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A graphene-based composite material preparation method anode materials and lithium ion battery

机译:石墨烯基复合材料的制备方法负极材料及锂离子电池

摘要

The present invention relates to a method for manufacturing a graphene-based composite anode material, and a cathode material and a lithium ion battery produced thereby. Specifically, the method comprises the steps of: (1) mixing the graphite raw material and graphite oxide uniformly and obtaining a mixture; (2) adding a binder to the mixture and kneading to obtain a kneaded product; Step (3), rolling the kneaded material to obtain a knitted fabric; (4) a step of grinding the knitted fabric to obtain a powder material; Step (5), performing compression molding on the powder material to obtain a compression molded article; Step (6) includes the step of performing graphitization treatment on the compression-molded article in a protective atmosphere to obtain a graphene-based composite anode material. The negative electrode material manufactured according to the above method has a stable structure, high capacity, conductivity, speed-rate performance, excellent liquid-absorbing performance and circulating performance, and can satisfy various demands in application.
机译:石墨烯类复合负极材料的制造方法,正极材料及锂离子电池技术领域本发明涉及石墨烯类复合负极材料的制造方法,正极材料及由此制造的锂离子电池。具体地,该方法包括以下步骤:(1)将石墨原料和氧化石墨均匀地混合并获得混合物; (2)向混合物中加入粘合剂并捏合,得到捏合产物;步骤(3),将混炼物卷取,得到针织物; (4)将针织物进行粉碎而得到粉体的工序。步骤(5),对粉末材料进行压缩成型,得到压缩成型品。步骤(6)包括在保护性气氛中对压模制品进行石墨化处理以获得石墨烯基复合负极材料的步骤。通过上述方法制造的负极材料具有稳定的结构,高容量,导电性,速度性能,优异的液体吸收性能和循环性能,并且可以满足各种应用需求。

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