A composite of rod-shaped LiNi1/3Co1/3Mn1/3O2 with graphene nanosheets and multiwall carbon nanotubes (MWCNTs) is assembled by using a hydrothermal method. In the composite, LiNi1/3Co1/3Mn1/3O2 and MWCNTs are wrapped into graphene nanosheets. It exhibits better rate capability in comparison with plain LiNi1/3Co1/3Mn1/3O2 as a positive electrode for an aqueous rechargeable battery, using zinc as the negative electrode. The average charge and discharge voltages of this aqueous rechargeable battery are 1.80 and 1.65V, respectively. Based on the total weight of the electrode materials of the composite and Zn, its energy density can reach 154Whkg-1, which is comparable with that of Ni-MH batteries. Its cycling behavior is satisfactory.
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