摘要
本文以聚苯胺(PANI)复合硫化钴(CoS_(2))材料构建了一种新型的复合正极材料CoS_(2)@PANI,并对其在铝离子电池中的电化学性能进行了研究。通过扫描电子显微镜(SEM)对材料形貌进行了表征,结果表明,CoS_(2)和CoS_(2)@PANI正极材料具有非均匀的微米颗粒结构。通过循环伏安测试和恒流充放电测试了复合材料的性能,发现CoS_(2)@PANI正极材料具有较高的比容量和良好的循环稳定性,Al-CoS_(2)电池的首圈放电比容量约为100 mA·h/g,而Al-CoS_(2)@PANI电池的首圈放电比容量约为230 mA·h/g,循环100圈后,比容量还保持在196 mA·h/g。以上结果均表明,CoS_(2)@PANI正极材料能够有效提高铝离子电池的能量密度和循环寿命,展示PANI材料在材料改性方面的应用潜力。
In this paper,a novel composite cathode material CoS_(2)@PANI was constructed using polyaniline(PANI)and cobalt sulfide(CoS_(2)),and its electrochemical properties in aluminum ion batteries were systematically studied.The morphology and structure of the materials were characterized using scanning electron microscopy(SEM),revealing uniform microparticle structures for both CoS_(2) and CoS_(2)@PANI cathode materials.Both cyclic voltammetry(CV)and constant current charge-discharge cycling tests results show that CoS_(2)@PANI cathode material possesses high specific capacity and excellent cycling stability.The first cycle specific discharge capacity of Al-CoS_(2) battery is about 100 mA∙h/g,while that of Al-CoS_(2)@PANI battery is about 230 mA∙h/g,and the specific discharge capacity remains at 196 mA∙h/g after 100 cycles.The results indicate that the CoS_(2)@PANI cathode material effectively enhances the energy density and cycle life of aluminum batteries,demonstrating its potential application in the field of energy storage.
作者
雷海萍
魏天威
罗乙娲
涂继国
焦树强
LEI Haiping;WEI Tianwei;LUO Yiwa;TU Jiguo;JIAO Shuqiang(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China)
出处
《中国有色金属学报》
北大核心
2025年第1期234-244,共11页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助项目(52374350)
中央高校基本科研业务费专项资金资助项目(FRF-TP-20-045A1)
中国博士后科学基金资助项目(2021T140051)。
