Uniform carbon coating mediated multiphase interface in submicron sized rodlike cobalt ditelluride anodes for high-capacity and fast lithium storage

Recent Advances in CoSex and CoTex Anodes for Alkali-ion Batteries

“…More active sites can be exposed by delicate structures (e.g., sea urchin CoSe 2 [88], CoSe microspheres [91]). By using carbon coatings, CoSe x and CoTe x can be well maintained in nanoform and improved in terms of cycling stability by using constraint effects (such as CoSe-C@C [92] and o/h-CoTe 2 [93]). Combination with structural carbon can produce interfacial interactions, which can effectively improve diffusion kinetics, electrical conductivity, and structural compatibility, thus achieving excellent electrochemical performance [10,94].…”

“…Therefore, choosing appropriate preparation methods to synthesize materials with special structures is the key to improving the properties of the materials. Conventional preparation methods of cobalt-based anode materials include, but are not limited to, hydrothermal/solvothermal methods [32,101,113,116], heat treatment methods [52,93,129], sol-gel methods [130], vapor deposition methods [34], and electrospinning [100]. At the same time, the usual method for preparing selenides and tellurides is the gas-phase method [34].…”

A comprehensive review of cathode materials for Na–air batteries

“…1,3 Therefore, lithium-ion batteries (LIBs) have been gaining increasing attention due to their excellent stability, high cycle efficiency, and low electrode potential. [5][6][7][8][9][10] However, their low energy (o500 W h kg À1 ) and power densities have limited their large-scale application (Table 1). 11 Even though researchers continue to rationalize the processes to optimize the materials and structures, the limited energy density and safety concerns related to the Li-ion batteries have prevented them from reaching the levels required to meet current energy demands.…”