【摘要】 锡基硒化物具有理论比容量高、导电性优异、成本低等优点，在电化学储能领域具有较好的应用前景．但其循环稳定性低及倍率性能差仍限制其进一步商业化应用．针对这些问题，采用简单的水热-硒化法制备SnSe₂/碳布柔性负极材料，并对其进行了钠离子电池性能的测试．结果表明，制备的电极材料在电流密度为0.1 A·g^-1下，经过100圈充放电循环后，放电容量为541.0mAh·g^-1，且在不同电流密度充放电循环之后可逆比容量仍可高达503.9 mAh·g^-1.更多还原

【Abstract】 Sn-based selenide with high theoretical specific capacity,excellent electrical conductivity and low coat,has good application prospects in the field of electrochemical energy storage.However,its low rate capability and poor cycle lifespan still limited its commercial applications.To solve the above problems,the high Na-storage performance of SnSe₂/carbon cloth was prepared by hydrothermal-selenylation method.As-obtained SnSe₂/carbon cloth anode material shows excellent discharge capacity of 541.0 mAh·g^-1 after 100 cycles at 0.1 A·g^-1 and high reversible specific capacity of 503.9 mAh·g^-1 after cycling at different current density.更多还原