Deficiency and modification of polyanionic cathode materials for sodium-ion battery
Sodium-ion battery has emerged as potential alternative to Li-ion battery due to their cost-effectiveness stemming from abundant sodium resources.Polyanionic compounds serve as cathode materials for sodium-ion battery,emerging as a hot research topic of electrode materials for energy storage owing to their structural diversity,high operating voltage and structural stability.Based on the working principle of sodium-ion battery and the relation between material structure and performance,the research progress in polyanionic cathode materials such as orthophosphates,pyrophosphates,sulfates,fluorophosphates and mixed phosphates is summarized.Furthermore,the deficiencies of materials are pointed out,the feasible improvement methods are given.
国家科技期刊平台
NSTL
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