锂离子电池锡基负极材料的改性研究进展OA

With the increasing demand of electric vehicles and energy storage equipment for high energy density,high rate and long life batteries,the development of lithium-ion battery anode materials with excellent electrochemical performance is an inevitable trend.Lithium-ion batteries develop rapidly in the field of new energy due to their high energy density,stable output power and long life.As the most promising alternative to traditional graphite anode lithium-ion battery tin-based anode materials,tin-based anode material include tin metal-based material,tin-based oxide and tin-based sulfide,and because of its high specific capacity,high safety,environmental friendly attention,it is considered to be the most promising anode material for the next generation of lithium-ion batteries.However,the huge volume expansion,pulverization and agglomeration of tin-based anode materials in the cycle process become the biggest obstacle to its practical application.In this review,the latest progress of tin-based anode materials was systematically described.The modification of tin-based anode materials was discussed in detail.Finally,the challenges and problems in the development of tin-based anode materials were pointed out,and the future research direction of anode materials for lithium-ion batteries was prospected.