钴基化合物锂离子电池负极材料应用进展
Research progress on application of cobalt-based compounds as anode materials of lithium-ion batteries
介绍了常见钴基化合物晶体结构特征及近年来对常见钴基化合物储锂性能的改性研究。分析结果表明,与纳米碳材料复合能够提高比表面积,有效缓解充放电时电极的体积膨胀;复合金属氧化物能够与钴基化合物产生协同效应,提高离子电导率;元素掺杂能够改变材料的能带结构,提高离子传输速率;以金属有机骨架为原料能够提供大量活性位点,有利于提高储锂容量。
Research progress on the modification of lithium storage performance of common cobalt-based compounds in recent years is introduced,including crystal structure characteristics of common cobalt-based compounds.The analysis results indicate that the specific surface area of cobalt-based compounds can be increased by combining with nano carbon materials,which can effectively relieve the volume expansion of electrodes during charging and discharging.Compounding metal oxides can bring in a synergistic effect with cobalt-based compounds,improving ion conductivity.Elements doping can help to change the band structure of materials,further increases ion transport rate.Taking metal organic frameworks as raw materials can provide plenty of active sites,which is beneficial to improve the lithium storage capacity of the materials.
钴基化合物 / 储锂性能 / 结构特征 / 锂离子电池 / 负极材料
cobalt-based compounds / lithium storage performances / structural characteristics / lithium-ion batteries / anode materials
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辽宁省教育厅科研项目(JYTMS20230800)
大学生创新创业训练计划项目(X202410147015)
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