CoMoO 4 has attracted extensive interest as an anode for lithium-ion batteries due to its high theoretical capacity and low cost. Nevertheless, achieving controlled synthesis of CoMoO 4 with definite morphology by simply adjusting a certain synthesis condition is a very meaningful topic. Here, rod-like CoMoO 4 formed by lamellar stacking was successfully synthesized through the control pH value of one-step hydrothermal route, and its excellent electrochemical performance was investigated. The rod-like CoMoO 4 prepared at 190 C and pH = 7 has a high initial discharge capacity of 1,482.8 mAh/g at 200 mA/g. The discharge capacity of 1,041 mAh/g was maintained after 500 cycles, and the capacity retention was 70.2%. The improved electrochemical performance of rod-like CoMoO 4 can be attributed to the rod structures, which could shorten ion diffusion and electronic conduction pathway, provide more efficient charge storage sites, and alleviate the volume changes during Li + intercalation/deintercalation.
Lithium-rich manganese-based oxides have become one of the widely studied cathode materials for lithium-ion batteries due to their high-energy density, relatively low price and environmental friendliness. Herein, we propose a simple self-template route to prepare Li[Formula: see text]Mn[Formula: see text]Ni[Formula: see text]Co[Formula: see text]O2 nanorods using rod-like Mn2O3 as templates. Besides, the effect of calcination temperature on the morphology and electrochemical properties of the electrode materials was investigated. Li[Formula: see text]Mn[Formula: see text]Ni[Formula: see text]Co[Formula: see text]O2 nanorods as the cathode exhibit initial capacity of 251.4[Formula: see text]mAh[Formula: see text]g[Formula: see text] at 0.1[Formula: see text]C and capacity retention rate of 67.9% after 200 cycles, which can be attributed to the enhanced layered structural stability, lower charge transfer resistance and shorter lithium-ion transport pathway.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.