摘要
因具有能量密度高、循环寿命长、工作电压高等特点,随着新能源产业的崛起锂离子电池受到广泛关注。由于锂离子电池的实际应用高度依赖于电极的性能,因此如何设计和实现高效、低成本、安全的电极材料成为学术界和工业界面临的巨大挑战。MnO_(2)作为锂离子电池的负极材料,具有理论比容量高(1232 mAh/g)、储量丰富、环境友好等优点。然而MnO_(2)在充放电过程中有较大的体积变化和较低的电子导电性,因此导致循环稳定性和倍率性能较差。聚焦如何提高MnO_(2)在锂电池中的性能措施,主要从复合材料、掺杂元素、纳米形貌控制三方面进行了综述。
Due to their high energy density,long cycle life and high operating voltage,lithium-ion batteries have attracted wide attention with the rise of the new energy industry.Since the practical application of lithium-ion batteries is highly dependent on the performance of the electrode,how to design and implement efficient,low-cost,and safe electrode materials has become a huge challenge for academia and industry.As an anode material for lithium ion batteries,MnO_(2)has the advantages of high theoretical specific capacity(1232 mAh/g),abundant reserves and environmental friendliness.MnO_(2)has a large volume change and low electronic conductivity during charging and discharging,resulting in poor cycle stability and rate performance.Focusing on how to improve the performance of MnO_(2)in lithium batteries,the three aspects of composite materials,doping elements and nano-morphology control are reviewed.
作者
殷悦
臧成芮
丘晨敏
姜泽
杨晨熙
胡芳东
姜晓蕾
YIN Yue;ZANG Chengrui;QIU Chenmin;JIANG Ze;YANG Chenxi;HU Fangdong;JIANG Xiaolei(School of Chemistry and Chemical Engineering,Linyi University,Linyi 276000,China)
出处
《河南化工》
CAS
2024年第8期30-33,共4页
Henan Chemical Industry
基金
山东省大学生创新创业训练计划项目(S202310452095)
山东省本科教学改革研究项目(Z2023046)
临沂大学教改项目(JG2023Z06、T2021SZ004、JG2021M09)。
