Regulation of solvation structure and the cooperation environment of potassium bonds for wider-temperature adaptive potassium storage  

作　　者：Bing-Bing Liu Yi-Hui Liu You-Bin Zhang Zhen-Guo Qi Guo-Hui Qin 

机构地区：[1]State Key Laboratory Base for Eco-Chemical Engineering,College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao,266042,China [2]Shandong Synergetic Innovation Center of Ecological and Chemical Engineering,Qingdao,266042,China

出　　处：《Rare Metals》2024年第4期1610-1621,共12页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.22175103);Young Taishan Scholar project of Shandong province。

摘　　要：Antimony selenide(Sb_(2)Se_(3))is one of the perspective candidates for potassium-ion batteries due to its advanced virtues stem including featured high capacity,fertile reserves and the relative narrow band gap.Despite the unique advantages,it is still plagued by the unstable interface compatibility and poor wider-temperature adaptability.The optimization of microstructure and the construction of inorganic-organic hybrids with a low desolvation barrier and rapid kinetics behaviors are efficient to address these issues.The Sb_(2)Se_(3)nanorods enclosed by the S-doped carbon layer(SC),further crosslinked by the poly(N-isopropylacrylamide)(PM)film(PM@Sb_(2)Se_(3)@SC),were artificially fabricated,and it displays the enrichment ion aggregated model as well as contacted ion pair state,the well-tailored cooperation environment of potassium bonds,assuring a homogeneous potassium deposition and an excellent widertemperature adaptability.The complicated experimental studies and theoretical calculations authenticate the synergistic effects of geometric conformation and compositional design for the tremendously enhanced potassium storage.Moreover,the full device over PM@Sb_(2)Se_(3)@SC anode and the potassium Prussian blue cathode manifests impressively durable cycling life and wider-temperature adaptability,verifying the glorious contribution from the finely manipulation in solvation structure and potassium bonds to enhancing the potassium storage behaviors.

关 键 词：ANODE Sb_(2)Se_(3) rods Interface compatibility Inorganic-organic electrode Potassium ion battery 

分 类 号：TB34[一般工业技术—材料科学与工程] TM912[电气工程—电力电子与电力传动]