新型炭材料2021，Vol.36Issue(3)：435-448,14.DOI:10.1016/S1872-5805(21)60039-2
用于钾基能源存储的石墨材料研究进展
Progress on graphitic carbon materials for potassium-based energy storage
摘要
Abstract
Potassium ion batteries (KIBs) and potassium-based dual ion batteries (KDIBs) are newly-emerging energy storage devices that have attracted considerable attention owing to the low-cost of potassium resources and their comparable performance to lithium-ion batteries (LIBs). Graphite materials, as the successful commercialized anode materials of LIBs, can also be used as anod-ic and cathodic host materials for the intercalation of the large potassium cations and other anions, respectively. However, there are still some challenges hindering the practical application of graphite materials in the anode for KIBs and the cathode for KDIBs. The huge volume changes after intercalation (61％ for K and 130％ for anions) result in graphite interlayer slipping and structural col-lapse, causing capacity fade and a short cycle life. Moreover, the intercalation of large K+ and anions have poor kinetics due to the small graphite interlayer spacing, restricting the rate capability. To solve these issues of the use of graphite materials, this review at-tempts to provide a better understanding of the intercalation mechanisms for K+ and anions, and to correlate the electrochemical per-formance of KIBs and KDIBs to the microstructure of graphite, and the physicochemical properties of electrolytes and binders. Fi-nally, research prospects are provided to guide the future development of graphite materials for potassium-based energy storage.关键词
石墨/钾离子电池/钾基双离子电池Key words
Graphite/Potassium ion battery/Potassium-based dual ion battery分类
化学化工引用本文复制引用
王登科,张家鹏,董玥,曹斌,李昂,陈晓红,杨儒,宋怀河..用于钾基能源存储的石墨材料研究进展[J].新型炭材料,2021,36(3):435-448,14.基金项目
国家自然科学基金项目(U1610252). This work was supported by the National Natur-al Science Foundation of China(U1610252). （U1610252）
