In-situ cation-inserted MnO_(2) with selective accelerated intercalation of individual H^(+) or Zn^(2+) ions in aqueous zinc ion batteries  

作　　者：Lijin Yan Baibai Liu Jiangyu Hao Yuying Han Chong Zhu Fuliang Liu Xuefeng Zou Yang Zhou Bin Xiang 

机构地区：[1]College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 401331,China [2]College of Optoelectronic Engineering,Chongqing University,Chongqing 400044,China [3]Guizhou Meiling Power Co.,Zunyi 563099,Guizhou,China [4]Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China [5]Guizhou Provincial Key Laboratory of Computational Nano-Material Science,Guizhou Normal University,Guiyang 550018,Guizhou,China [6]Analytical and Testing Center of Chongqing University,Chongqing University,Chongqing 401331,China

出　　处：《Journal of Energy Chemistry》2023年第7期88-102,I0003,共16页能源化学（英文版）

基　　金：supported by the Opening Project of the State Key Laboratory of Advanced Chemical Power Sources;Guizhou Provincial Science and Technology Projects(QKHJC–ZK[2021]YB057);the Growth Project of Young Scientific and Technological Talents in Colleges and Universities of Guizhou Province(QKHJCKYZ[2021]252);the Reward and Subsidy Fund Project of Guizhou Education University(Z20210108);the Doctoral Program of Guizhou Education University(2019BS022)。

摘　　要：The recognized energy storage mechanism of neutral aqueous zinc-manganese batteries is the co-insertion/extrusion of H^(+) and Zn^(2+) ions.However,modulating the kinetics of a single H^(+) or Zn^(2+) ion is scarce,which can provide meaningful insights into the energy storage mechanism of Zn ion batteries.Herein,a distinctive doubly electric field in-situ induced cationic anchoring of two-dimensional layered MnO_(2) is successfully constructed to modulate the insertion/extrusion of a single H^(+) or Zn^(2+) ion.As a result,regulating the intercalation of different metal ions can precisely achieve the accelerated induction for the individual H^(+) or Zn^(2+) ions intercalation/deintercalation.Moreover,the introduction of metal ions stabilizes the lattice distortion and alleviates the irreparable structural collapse,leading to an increase in the H^(+)/Zn^(2+) storage sites,efficiently diminishing the stagnation of the ordered structure and creating the more open channels,which is conducive to facilitating the diffusion of ions.This work delivers some innovative insights into pre-embedding strategies,and also serves as a precious reference for the cathode development of advanced aqueous batteries.

关 键 词：In-situ inductions Manganese dioxide Insertion mechanisms Zinc-ion batteries 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ137.12[化学工程—无机化工]