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-1明,制备的电极材料在电流密度为0.1 A·g下,经过100圈充放电循环后,放电容量为541.0 mAh·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503.9mAh·g^(-1).
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-1-1 material shows excellent discharge capacity of 541.0 mAh·g^(-1) after 100 cycles at 0.1 A·g^(-1) and high reversible-1 specific capacity of 503.9 mAh·g^(-1) after cycling at different current density.
作者
孙靖卓
孙立
宋伟明
赵冰
SUN Jingzhuo;SUN Li;SONG Weiming;ZHAO Bing(School of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,China)
出处
《高师理科学刊》
2023年第11期39-43,共5页
Journal of Science of Teachers＇College and University
基金
黑龙江省省属高等学校基本科研业务费科研项目(YSTSXK201845)——植物性食品加工技术特色学科专项
黑龙江省表面活性剂与工业助剂重点实验室开放课题基金资助项目(BMHXJKF007)
齐齐哈尔大学大学生创新创业训练计划项目(YJSCX2021011)。
