Ordered Macroporous MoS_(2)-Carbon Composite with Fast and Robust Sodium Storage Properties to Solve the Issue of Kinetics Mismatch of Sodium-Ion Capacitors  

作　　者：Weiqing Yu Chunyan Zhu Rutao Wang Jianchao Chen Qingyuan Liu Shuxian Zhang Shoubao Zhang Jinfeng Sun Longwei Yin 

机构地区：[1]Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials,Ministry of Education,School of Materials Science and Engineering,Shandong University,Ji’nan 250061,China [2]Suzhou Institute of Shandong University,Suzhou 215123,China CAS Key Laboratory of Carbon Materials,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China [3]School of Physics and Physical Engineering,Qufu Normal University,Qufu 273165,China [4]School of Material Science&Engineering,University of Jinan,Jinan 250024,China

出　　处：《Energy & Environmental Materials》2023年第2期202-211,共10页能源与环境材料（英文）

基　　金：supported by National Natural Science Foundation of China(No.51902188);Natural Science Foundation of Jiangsu Province(No.BK20190207);Natural Science Doctoral Foundation of Shandong Province(No.ZR2019BB057);the CAS Key Laboratory of Carbon Materials(No.KLCMKFJJ2006).

摘　　要：Metal-ion capacitors(including Li^(+),Na^(+),and K^(+))effectively combine a battery negative electrode capable of reversibly intercalating metal cations,together with an electrical double-layer positive electrode.However,such novel cell design has a birth defect,namely kinetics mismatch between sluggish negative electrode and fast positive electrode,thus limiting the energy-power performance.Herein,we design a MoS_(2)-carbon composite anode with the ordered macroporous architecture and interlayer-expanded feature,exhibiting the fast and reversible Na^(+)redox processes.This kinetically favored anode is coupled with a homemade activated carbon cathode that allows for the excellent electrochemical performance of sodiumion capacitor with respect to large specific capacity,high-rate capability,and robust cycling.Through quantification of the potential swings of anode and cathode via a three-electrode Swagelok cell,we for the first time observe the abnormal variation law of potential swings and thus directly providing the evidence that the kinetics gap has been filled up by this kinetically favored anode.Our results represent a crucial step toward understanding the key issues of kinetics mismatch for hybrid cell,thus propelling the development of design of kinetically favored anode materials for high-performance metalion capacitors.

关 键 词：anode energy-storage devices KINETICS Molybdenum disulfide sodium-ion capacitor 

分 类 号：TM912[电气工程—电力电子与电力传动]