首页|Regulation of solvation structure and the cooperation environment of potassium bonds for wider-temperature adaptive potassium storage
Regulation of solvation structure and the cooperation environment of potassium bonds for wider-temperature adaptive potassium storage
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Antimony selenide(Sb2Se3)is one of the per-spective 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 Sb2Se3 nanorods enclosed by the S-doped carbon layer(SC),further crosslinked by the poly(N-isopropylacry-lamide)(PM)film(PM@Sb2Se3@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 wider-temperature adaptability.The complicated experimental studies and theoretical calculations authenticate the syner-gistic effects of geometric conformation and compositional design for the tremendously enhanced potassium storage.Moreover,the full device over PM@Sb2Se3@SC anode and the potassium Prussian blue cathode manifests impressively durable cycling life and wider-temperature adaptability,verifying the glorious contribution from the finely manipu-lation in solvation structure and potassium bonds to enhancing the potassium storage behaviors.
AnodeSb2Se3 rodsInterface compatibilityInorganic-organic electrodePotassium ion battery
State Key Laboratory Base for Eco-Chemical Engineering,College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,China
Shandong Synergetic Innovation Center of Ecological and Chemical Engineering,Qingdao 266042,China
National Natural Science Foundation of ChinaYoung Taishan Scholar project of Shandong province
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