Sieving carbons promise practical anodes with extensible low-potential plateaus for sodium batteries

作     者：Qi Li Xiangsi Liu Ying Tao Jianxing Huang Jun Zhang Chunpeng Yang Yibo Zhang Siwei Zhang Yiran Jia Qiaowei Lin Yuxuan Xiang Jun Cheng Wei Lv Feiyu Kang Yong Yang Quan-Hong Yang Qi Li;Xiangsi Liu;Ying Tao;Jianxing Huang;Jun Zhang;Chunpeng Yang;Yibo Zhang;Siwei Zhang;Yiran Jia;Qiaowei Lin;Yuxuan Xiang;Jun Cheng;Wei Lv;Feiyu Kang;Yong Yang;Quan-Hong Yang

作者机构：Nanoyang GroupState Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Nanoyang GroupJoint School of National University of Singapore and Tianjin UniversityInternational Campus of Tianjin University Haihe Laboratory of Sustainable Chemical Transformations State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials and Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen University Shenzhen Key Laboratory for Graphene-Based MaterialsEngineering Laboratory for Functionalized Carbon MaterialsTsinghua Shenzhen International Graduate SchoolTsinghua University 

出 版 物：《National Science Review》 (国家科学评论(英文版))

年 卷 期：2022年第9卷第8期

页      面：118-126页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (51872195 and 21935009) the Project Funded by the China Postdoctoral Science Foundation (2020TQ0225) the National Key Research and Development Program of China(2016YFB0901502) the National Science Fund for Distinguished Young Scholars of China (51525204) 

主　　题：sodium-ion batteries sieving carbons low-potential plateau pore entrance diameter pore surface area 

摘      要：Non-graphitic carbons are promising anode candidates for sodium-ion batteries, while their variable and complicated microstructure severely limits the rational design of high-energy carbon anodes that could accelerate the commercialization of sodium-ion batteries, as is the case for graphite in lithium-ion ***, we propose sieving carbons, featuring highly tunable nanopores with tightened pore entrances, as high-energy anodes with extensible and reversible low-potential plateaus(0.1 V). It is shown that the tightened pore entrance blocks the formation of the solid electrolyte interphase inside the nanopores and enables sodium clustering to produce the plateau. Theoretical and spectroscopic studies also show that creating a larger area of sodiophilic pore surface leads to an almost linearly increased number of sodium clusters, and controlling the pore body diameter guarantees the reversibility of sodium cluster formation,producing a sieving carbon anode with a record-high plateau capacity of 400 mAh g–1. More excitingly, this approach to preparing sieving carbons has the potential to be scalable for modifying different commercial porous carbons.