Advances in modification research of tin-based anode materials for lithium-ion batteries

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.