Advanced Bismuth-Based Anode Materials for Efficient Potassium Storage:Structural Features,Storage Mechanisms and Modification Strategies

作     者：Yiye Tan Fanglan Mo Hongyan Li 

作者机构：Department of Materials Science and EngineeringCollege of Chemistry and Materials ScienceJinan UniversityGuangzhou 510632People’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报(英文版))

年 卷 期：2025年第17卷第6期

页      面：1-39页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(22209057) the Guangzhou Basic and Applied Basic Research Foundation(2024A04J0839) 

主　　题：Bismuth-based materials Potassium-ion batteries Anode Potassium storage mechanism Modification strategies 

摘      要：Potassium-ion batteries(PIBs)are considered as a promising energy storage system owing to its abundant potassium *** an important part of the battery composition,anode materials play a vital role in the future development of ***-based anode materials demonstrate great potential for storing potassium ions(K^(+))due to their layered structure,high theoretical capacity based on the alloying reaction mechanism,and safe operating ***,the large radius of K^(+)inevitably induces severe volume expansion in depotassiation/potassiation,and the sluggish kinetics of K^(+)insertion/extraction limits its further ***,we summarize the strategies used to improve the potassium storage properties of various types of materials and introduce recent advances in the design and fabrication of favorable structural features of bismuth-based ***,this review analyzes the structure,working mechanism and advantages and disadvantages of various types of materials for potassium ***,based on this,the manuscript focuses on summarizing modification strategies including structural and morphological design,compositing with other materials,and electrolyte optimization,and elucidating the advantages of various modifications in enhancing the potassium storage ***,we outline the current challenges of bismuth-based materials in PIBs and put forward some prospects to be verified.