金属锂
锂(药物)
阴极
氟化物
材料科学
金属
氟化锂
无机化学
离子
纳米技术
化学
阳极
冶金
电极
有机化学
物理化学
医学
内分泌学
作者
Yanshen Gao,Jiaxin Li,Yumeng Hua,Qingshan Yang,Rudolf Holze,Ewa Mijowska,Paul K. Chu,Xuecheng Chen
标识
DOI:10.1088/2752-5724/ad4572
摘要
Abstract As the most successful new energy storage device developed in recent decades, lithium-ion batteries (LIBs) are ubiquitous in the modern society. However, current commercial LIBs comprising mainly intercalated cathode materials are limited by the theoretical energy density which cannot meet the high storing energy demanded by renewable applications. Compared to intercalation-type cathode materials, low-cost conversion-type cathode materials with a high theoretical specific capacity are expected to boost the overall energy of LIBs. Among the different conversion cathode materials, metal fluorides have become a popular research subject for their environmental friendliness, low toxicity, wide voltage range, and high theoretical specific capacity. In this review, we compare the energy storage performance of intercalation and conversion cathode materials based on thermodynamic calculation and summarize the main challenges. The common conversion-type cathode materials are described and their respective reaction mechanisms are discussed. In particular, the structural flaws and corresponding solutions and strategies are described. Finally, we discussed the prospective of metal fluorides and other conversion cathode materials to guide further research in this important field.
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