%0 Journal Article %A Yingmeng Zhang %A Luting Liu %A Qingwei Deng %A Wanlin Wu %A Yongliang Li %A Xiangzhong Ren %A Peixin Zhang %A Lingna Sun %T Hybrid CuO-Co3O4 nanosphere/RGO sandwiched composites as anode materials for lithium-ion batteries %D 2022 %R 10.1016/j.cjche.2021.06.026 %J Chinese Journal of Chemical Engineering %P 185-192 %V 47 %N 7 %X Hybrid CuO-Co3O4 nanosphere building blocks have been embedded between the layered nanosheets of reduced graphene oxides with a three dimensional (3D) hybrid architecture (CuO-Co3O4-RGO), which are successfully applied as enhanced anodes for lithium-ion batteries (LIBs). The CuO-Co3O4-RGO sandwiched nanostructures exhibit a reversible capacity of~847 mA·h·g-1 after 200 cycles' cycling at 100 mA·g-1 with a capacity retention of 79%. The CuO-Co3O4-RGO compounds show superior electrochemical properties than the comparative CuO-Co3O4, Co3O4 and CuO anodes, which may be ascribed to the following reasons:the hybridizing multicomponent can probably give the complementary advantages; the mutual benefit of uniformly distributing nanospheres across the layered RGO nanosheets can avoid the agglomeration of both the RGO nanosheets and the CuO-Co3O4 nanospheres; the 3D storage structure as well as the graphene wrapped composite could enhance the electrical conductivity and reduce volume expansion effect associated with the discharge-charge process. %U https://cjche.cip.com.cn/EN/10.1016/j.cjche.2021.06.026