磷酸铁锂正极材料的制备及性能强化研究进展
收稿日期: 2021-04-09
网络出版日期: 2021-07-08
基金资助
国家自然科学基金(U20A20142);国家自然科学基金(21978094);青海省重大科技专项(2019-GX-A7)
Research progress in synthesis and performance enhancement of LiFePO4 cathode materials
Received date: 2021-04-09
Online published: 2021-07-08
张婷 , 林森 , 于建国 . 磷酸铁锂正极材料的制备及性能强化研究进展[J]. 无机盐工业, 2021 , 53(6) : 31 -40 . DOI: 10.19964/j.issn.1006-4990.2021-0212
Olivine LiFePO4 is one of the most widely used cathode materials for lithium-ion batteries,with characteristics of low cost,high safety,environment-friendly,long cycle life and stable operating voltage.In recent years,with the breakthrough of CTP technology and blade battery technology,its commercialization progress has been greatly improved.However,LiFePO4 has the defects of poor electronic conductivity and low ion diffusion coefficient,which seriously limits the electrochemical capacity of lithium-ion battery.It is of great significance to study on the preparation process and performance enhancement of LiFePO4. In this paper,the differences of performance and development status of LiFePO4 and other cathode materials for lithium-ion batteries were compared.The modification methods of preparation and strengthening of LiFePO4 cathode materials and related research progress and challenges were systematically summarized,and the future development direction and research ideas were put forward.
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