Abstract: Solid hexahedral ZnSnO3 is used as a precursor,phenolic resin is used as carbon source,solid hexahedral ZnSnO3 is coated by phenolic resin and then carbonized together.Hollow hexahedral SnO2@C composites are obtained after the carbonized materials are treated by Na2EDTA.XRD,SEM,TEM,Raman and other characterization methods are utilized to study the chemical composition,structure and morphology of SnO2@C samples.The electrochemical performance of the samples is tested through a battery test system.The results show that the sample has a hollow structure and its surface is uniformly coated with a layer of carbon.The carbon coated on the surface of the material not only increases the overall conductivity of the composite material,but also acts as a protective substance to alleviate the agglomeration and volume expansion of Sn particles during charge and discharge.Therefore,the anode electrode prepared from SnO2@C composites exhibits excellent electrochemical performance.
陈东, 丘德立, 郑宝成, 谢建晖. SnO2@C锂离子电池负极材料的制备及其性能研究[J]. 现代化工, 2020, 40(3): 116-121.
CHEN Dong, QIU De-li, ZHENG Bao-cheng, XIE Jian-hui. Preparation of SnO2@C anode material for lithium-ion battery and study on its properties. Modern Chemical Industry, 2020, 40(3): 116-121.
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