Research progress in long-cycle graphite anode of Li-ion battery
Li-ion batteries are widely used in the field of transportation and consumer electronics,but there is a problem of capacity attenuation caused by the loss of anode active substances during use.The mechanism of graphite anode capacity attenuation of Li-ion battery is explained from the perspectives such as lithium deposition,solid electrolyte interface(SEI)film and structural change.The research progress of long-cycle graphite anode is reviewed from the aspects of material surface modification,material structure regulation,additives and carbon materials,the advantages of surface modification are highlighted.The development trend of long-cycle graphite anode is pointed out.
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