An Ion-Pumping Interphase on Graphdiyne/Graphite Heterojunction for Fast-Charging Lithium-Ion Batteries

作     者：Juan An Fan Wang Jia-Yue Yang Guoxing Li Yuliang Li 

作者机构：Shandong Provincial Key Laboratory for Science of Material Creation and Energy ConversionScience Center for Material Creation and Energy ConversionSchool of Chemistry and Chemical EngineeringInstitute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237 Optics&Thermal Radiation Research CenterInstitute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237 Institute of ChemistryThe Chinese Academy of SciencesBeijing 100190 University of Chinese Academy of SciencesBeijing 100049 

出 版 物：《CCS Chemistry》 (中国化学会会刊（英文）)

年 卷 期：2024年第6卷第1期

页      面：110-124页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the National Nature Science Foundation of China(grant nos.52072222 and 22279073) the National Key Research and Development Project of China(grant no.2022YFA1200044) the Taishan Scholar Project of Shandong Province of China(grant no.62460082061017) the Natural Science Foundation of Shandong Province(grant no.ZR2022ZD35) the National Nature Science Foundation of China(grant nos.21790050 and 21790051) 

主　　题：extreme fast-charging lithium-ion batteries lithium-ion transport kinetics ion-pumping interphase graphdiyne/graphite heterojunction 

摘      要：The sluggish lithium-ion(Li-ion)transport kinetics in graphite anode hinders its application in fast-charging Li-ion batteries(LIBs).Here,we develop an ionpumping interphase(IPI)on graphdiyne(GDY)/graphite heterojunction anodes to boost the ionic transport kinetics and enable high-performance,fast-charging *** IPI changed the ion solvation/desolvation environment by covalent/non-covalent interactions with Li ions or solvents to optimize solid-electrolyte interphase(SEI)and regulate Li-ion transport *** studied the in situ growth of few-layer GDY on graphite surface(GDY/graphite)as the IPI and found that the strong interaction between GDY and Li ions enabled surface-induced modification of the ion solvation behavior and surface-assisted desolvation effect to accelerate the Li-ion desolvation process.A functional anion-derived SEI layer with improved Li-ion conductivity was *** with the generated built-in electric field at GDY/graphite hetero-interface self-pumping Li ions to intercalate into the graphite,the Li-ion transport kinetics was significantly enhanced to effectively eliminate Li plating and large voltage polarization of the graphite anodes.A fast Li intercalation in GDY/graphite without Li oversaturation at the edge of the graphite was directly *** superior performance with high capacity(139.2 mA h g^(-1))and long lifespan(1650 cycles)under extremely fast-charging conditions(20 C,1 C=372 mA g^(-1))was achieved on GDY/graphite *** at low temperatures(-20℃),a specific capacity of 128.4 mA h g^(-1) was achieved with a capacity retention of 80%after 500 cycles at a 2 C rate.