纳微快报（英文）2021，Vol.13Issue(4)：247-258,12.
Inorganic Colloidal Electrolyte for Highly Robust Zinc-Ion Batteries
Inorganic Colloidal Electrolyte for Highly Robust Zinc?Ion Batteries
摘要
Abstract
Zinc-ion batter-ies (ZIBs) is a promising electrical energy storage candidate due to its eco-friendliness, low cost, and intrin-sic safety, but on the cathode the element dissolution and the forma-tion of irreversible products, and on the anode the growth of dendrite as well as irreversible products hinder its practical application. Herein, we propose a new type of the inorganic highly concentrated colloidal elec-trolytes (HCCE) for ZIBs promoting simultaneous robust protection of both cathode/anode leading to an effective suppression of element dissolution, dendrite, and irreversible products growth. The new HCCE has high Zn2+ ion transference number (0.64) endowed by the limitation of SO42?, the competitive ion conductivity (1.1 × 10–2 S cm?1) and Zn2+ ion diffusion enabled by the uniform pore distribution (3.6 nm) and the limited free water. The Zn/HCCE/α-MnO2 cells exhibit high durability under both high and low current densities, which is almost 100％ capacity retention at 200 mA g?1 after 400 cycles (290 mAh g?1) and 89％ capacity retention under 500 mA g?1 after 1000 cycles (212 mAh g?1). Considering material sustainability and batteries' high performances, the colloidal electrolyte may provide a feasible substitute beyond the liquid and all-solid-state electrolyte of ZIBs.关键词
Zn-ion battery/Palygorskite/Inorganic/Colloidal electrolyte/Cycle stabilityKey words
Zn-ion battery/Palygorskite/Inorganic/Colloidal electrolyte/Cycle stability引用本文复制引用
Jiawei Gao,Xuesong Xie,Shuquan Liang,Bingan Lu,Jiang Zhou..Inorganic Colloidal Electrolyte for Highly Robust Zinc-Ion Batteries[J].纳微快报（英文）,2021,13(4):247-258,12.基金项目
This work was supported by National Natural Science Foundation of China (Grant Nos. 51972346, 51932011, 51922038, and 51672078), Hunan Outstanding Youth Talents (No. 2019JJ20005), the Program of Youth Talent Support for Hunan Province (2020RC3011) and Innovation-Driven Project of Central South University (No. 2020CX024). （Grant Nos. 51972346, 51932011, 51922038, and 51672078）
