MXene ink hosting zinc anode for high performance aqueous zinc metal batteries  

作　　者：Jae Min Park Milan Jana Sang Ha Baek Taehun Kang Peixun Xiong Jeong Hee Park Jun Soo Kim Ali Shayesteh Zeraati Mikhail Shekhirev Paul V.Braun Yury Gogotsi Ho Seok Park 

机构地区：[1]School of Chemical Engineering,Sungkyunkwan University,2066,Seoburo,Jangan-gu,Suwon 440-746,Republic of Korea [2]Department of Chemical and Petroleum Engineering,University of Calgary,2500 University Dr NW,Calgary T2N 1N4,Canada [3]Department of Materials Science and Engineering,Materials Research Laboratory,Beckman Institute for Advanced Science and Technology,University of Ilinois at Urbana-Champaign,Urbana,IL61801,USA [4]A.J.Drexel Nanomaterials Institute and Department of Materials Science and Engineering,Drexel University,Philadelphia,PA 19104,USA [5]SKKU Institute of Energy Science and Technology(SIEST),Sungkyunkwan University,2066,Seoburo,Jangan-gu,Suwon 440-746,Republic of Korea [6]SKKU Advanced Institute of Nano Technology(SAINT),Sungkyunkwan University 2066,Seoburo,Jangan-gu,Suwon 440-746,Republic of Korea

出　　处：《Journal of Energy Chemistry》2023年第1期187-194,I0005,共9页能源化学（英文版）

基　　金：supported by financial support from the National Research Foundation of Korea(NRF)grant funded by the Korean government(MSIT)(NRF-2020R1A3B2079803 and NRF2019K1A3A1A21032033),Republic of Korea。

摘　　要：Despite the safety,low cost,and high theoretical capacity(820 mA h g^(-1))of Zn metal anodes,the practical application of aqueous Zn metal batteries remains a critical challenge due to the Zn dendrite growth,corrosion,and hydrogen evolution reaction.Herein,we demonstrate the MXene ink hosting Zn metal anodes(MX@Zn)for high-performance and patternable Zn metal full batteries.The as-designed MX@Zn electrode is more facile and reversible than bare Zn and CC@Zn,as verified by better cyclic stability and lower overpotentials of symmetric cells with the plating capacity of 0.05 mA h cm^(-2)at 0.1 m A cm^(-2)and of 1 m A h cm^(-2)at 1 m A cm^(-2).The MX@Zn|MnO_(2)full cells deliver a high specific capacity of 281.9 m A h g^(-1),91.5%of the theoretical capacity,achieving 50%capacity retention from 60 mA g^(-1)to 300 mA g^(-1)and 79.7%of initial capacity after 200 cycles.Moreover,the patterned devices based on the MX@Zn electrode achieve high energy and power densities of 348.57 Wh kg^(-1)and 1556 W kg^(-1),respectively,along with a capacity retention of 64%and Coulombic efficiency of 99%over 500 cycles.The high performance of MX@Zn is attributed to the high electrical conductivity and hydrophilicity of MXene and rapid ion diffusion through the 3D interconnected porous channels.

关 键 词：MXene ink Zinc anode Metal batteries PATTERNING ELECTRODEPOSITION 

分 类 号：TM912[电气工程—电力电子与电力传动]