The present invention relates to a manganese dioxide or a reduced oxidation route is inserted graphene / cobalt oxide composite and a method, when using the complex as improved electrode, the high ratio of 1560 F / g at a current density of 2 A / g It showed the capacitance, and the capacitance only exhibits excellent long-term cycle stability decreases only 5.9% after using 1,500 times, in particular the complex may be efficiently produced by using a fast two-step method.;
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机译：本发明涉及一种以二氧化锰或氧化还原方式插入的石墨烯/氧化钴复合物及方法，当将该复合物用作改进的电极时，在电流密度为2 A / g时高比为1560 F / g表现出电容，并且该电容仅表现出优异的长期循环稳定性，在使用1500次后仅下降5.9％，特别是通过使用快速两步法可以有效地生产该配合物。
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