摘要
由于储量丰富、价格低廉及安全环保等突出优点,钠离子电池(SIBs)被认为是大规模储能应用的主要候选技术之一,而正极材料的开发也决定了钠离子电池的商业化进程和最终性能。钠离子电池层状氧化物正极材料,具有比容量高、构造简单、稳定性好等优势,是最富有前景的钠电正极材料之一。但此类材料目前仍面临电化学过程的不可逆变化、空气中储存不稳定和界面稳定性较差等问题,严重制约着钠离子电池商品化进程的发展。为了解决材料所存在的这些问题,研究人员对其进行改性优化。据此,本工作综述了钠电正极材料层状氧化物离子掺杂、表面包覆、纳米结构设计、P/O混合相等改性措施所取得的成效,为钠电正极材料层状氧化物改性研究提供了基础,并对层状氧化物的后续发展趋势进行了展望。
Sodium-ion batteries(SIBs)have been regarded as the major candidate technologies for large-scale energy storage applications due to the rich abundance of Na sources,low cost and safety.And the development of cathode materials also determines the final performances and commercialization.Layered oxide cathode materials have the advantages of high specific capacity,simple structure and good stability.It is one of the most promising sodium cathode materials at present.However,such materials are still faced with irreversible changes in the electrochemical process,unstable storage in air and poor interface stability,which seriously restricts the development of commercialization of SIBs.In order to solve these problems of materials,researchers modified and optimized them.Accordingly,the modification measures of ion doping,surface coating,nanostructure design and P/O mixing and other related modification measures of sodium electric layered oxide cathode materials,which provides a basis for the modification research of sodium electric layered oxide cathode materials are reviewed in this review.Besides,the future development trend of layered oxides is prospected.
作者
李苗苗
邱祥云
尹延鑫
张涛
戴作强
Miaomiao LI;Xiangyun QIU;Yanxin YIN;Tao ZHANG;Zuoqiang DAI(Power&Energy Storage System Research Center,Qingdao University,Qingdao,Shandong 266071,China;College of Materials Science and Engineering,Qingdao University,Qingdao,Shandong 266071,China)
出处
《过程工程学报》
CAS
CSCD
北大核心
2023年第6期799-813,共15页
The Chinese Journal of Process Engineering
基金
山东省重点研发计划(重大科技创新工程)资助项目(编号:2021CXGC010401)
关键词
储能
钠离子电池
正极材料
层状氧化物
改性优化
Energy storage
Sodium-ion batteries
Cathode materials
Layered oxides
Modification and optimization
