Uniformly Dispersed Sb-Nanodot Constructed by In Situ Confined Polymerization of Ionic Liquids for High-Performance Potassium-Ion Batteries

Overview

Journal Molecules

Publisher MDPI

Specialty Biology

Date 2023 Jul 14

PMID 37446874

Authors

Cunliang Zhang

Zhengyuan Chen

Haojie Zhang

Yanmei Liu

Wei Wei

Yanli Zhou

Maotian Xu

Affiliations

Soon will be listed here.

Abstract

Antimony (Sb) is a potential candidate anode for potassium-ion batteries (PIBs) owing to its high theoretical capacity. However; in the process of potassium alloying reaction; the huge volume expansion (about 407%) leads to pulverization of active substance as well as loss of electrical contact resulting in rapidly declining capacity. Herein; uniformly dispersed Sb-Nanodot in carbon frameworks (Sb-ND@C) were constructed by in situ confined polymerization of ionic liquids. Attributed to the uniformly dispersed Sb-ND and confinement effect of carbon frameworks; as anode for PIBs; Sb-ND@C delivered a superior rate capability (320.1 mA h g at 5 A g) and an outstanding cycling stability (486 mA h g after 1000 cycles; achieving 89.8% capacity retention). This work offers a facile route to prepare highly dispersed metal-Nanodot via the in situ polymerization of ionic liquid for high-performance metal-ion batteries.

Citing Articles

KF-Containing Interphase Formation Enables Better Potassium Ion Storage Capability.

Zhang T, Yuan N, Li Z, Chao K, Zhang Z, Li G Molecules. 2024; 29(13).

PMID: 38998947 PMC: 11243077. DOI: 10.3390/molecules29132996.

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