棒状δ-MnO_(2)电极材料制备及其在水系电池中的应用  

Preparation of rodδ-MnO_(2) electrode material and its application in water cell

作　　者：韩洋 樊姗[1] 严宇琪 樊鹏阳 郑晓英 戴勤进 徐健 HAN Yang;FAN Shan;YAN Yu-qi;FAN Peng-yang;ZHENG Xiao-ying;DAI Qin-jin;XV Jian(School of Materials Science and Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报（自然科学版）》2024年第5期48-51,共4页Journal of Qiqihar University(Natural Science Edition)

基　　金：齐齐哈尔大学研究生创新科研项目(YJSCX2022028)。

摘　　要：采用简单的一步水热合成法制备棒状δ-MnO_(2)电极材料。利用X射线衍射、X射线光电子能谱和扫描电子显微镜对所制得样品进行结构表征,并将其组装成水系锌离子电池进行测试。通过循环伏安法、恒电流充放电测试研究电化学性能。结果表明,棒状δ-MnO_(2)电极材料在电流密度为0.1A/g时放电容量达到194.6mAh/g。经过倍率性能测试后,容量保持率达到95.4%,显示出较好的稳定性。The rod-likeδ-MnO_(2) electrode material was prepared by a simple one-step hydrothermal synthesis method.The samples were characterized by XRD,XPS and SEM,and then assembled into water zinc-ion batteries for testing.The electrochemical properties were studied by CV and GCD.The test results showed that the rod-likeδ-MnO_(2) electrode material had a discharge capacity of 194.6 mAh/g when the current density was 0.1 A/g.The capacity retention rate ofδ-MnO_(2) was 95.4%,and the results showed thatδ-MnO_(2) had good stability.

关 键 词：水热法 δ-MnO_(2) 氧缺陷 水系锌离子电池 

分 类 号：O646[理学—物理化学]