Alkali cation intercalation manganese phosphate hydrate boosting electrochemical kinetics for pseudocapacitive energy storage  

作　　者：Xu Bao Wei-Bin Zhang Lun Zhang Yao-Wen Guo Xia Zhou Xian-Li Zhang Xiong-Wei Han Jianping Long 

机构地区：[1]College of Materials and Chemistry&Chemical Engineering,Chengdu University of Technology,Chengdu,610059,China

出　　处：《Journal of Materiomics》2022年第4期833-842,共10页无机材料学学报（英文）

基　　金：This research work was supported by the Sichuan Science and Technology Project(No.2020YJ0163);the Research Foundation for Teacher Development of Chengdu University of Technology(No.10912-2019KYQD-06847).

摘　　要：New insight into the effect on the alkali cations of Liþ,Naþ,and Kþpre-intercalated between adjacent layers of Mn3(PO4)2$3H2O towards the charge storage mechanism and their electrochemical kinetics of intercalation/deintercalation in three alkali electrolytes is demonstrated.The electrochemical perfor-mance of the designed LieMn3(PO4)2$3H2O material outperforms that most of Mn-based pseudocapa-citive electrode materials.The designed unique stratified structure is attractive for quick charge migration,which confirms that the appropriate pre-intercalation of alkali cation between layers is an efficient strategy to improve kinetics for the high-power density pseudocapacitive supercapacitor energy storage application.

关 键 词：Manganese phosphate Alkali cation Electrochemical kinetics PSEUDOCAPACITANCE 

分 类 号：O64[理学—物理化学]