Catalysis-Induced Highly-Stable Interface on Porous Silicon for High-Rate Lithium-Ion Batteries  

作　　者：Zhuobin Han Phornphimon Maitarad Nuttapon Yodsin Baogang Zhao Haoyu Ma Kexin Liu Yongfeng Hu Siriporn Jungsuttiwong Yumei Wang Li Lu Liyi Shi Shuai Yuan Yongyao Xia Yingying Lv 

机构地区：[1]Research Centre of Nanoscience and Nanotechnology,Shanghai University,Shanghai 200444,People’s Republic of China [2]Department of Chemistry,Faculty of Science,Silpakorn University,Nakhon Pathom 73000,Thailand [3]Sinopec Shanghai Research Institute of Petrochemical Technology Co.,Ltd.,Shanghai 201208,People’s Republic of China [4]Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science,Ubon Ratchathani University,Ubon Ratchathani 34190,Thailand [5]National University of Singapore(Chongqing)Research Institute,Chongqing 401123,People’s Republic of China [6]Department of Chemistry,Fudan University,Shanghai 200433,People’s Republic of China [7]Emerging Industries Institute Shanghai University,Jiaxing 314006,Zhejiang,People’s Republic of China [8]Program in Bioinformatics and Computational Biology,Graduate School,Chulalongkorn University,Bangkok 10330,Thailand

出　　处：《Nano-Micro Letters》2025年第8期548-563,共16页纳微快报(英文版)

基　　金：the National Key R&D Plan of the Ministry of Science and Technology of China(2022YFE0122400);National Natural Science Foundation of China(52002238,22102207);Science and Technology Commission of Shanghai Municipality(22ZR1423800,21ZR1465200,23ZR1423600);Shanghai Municipal Education Commission and the NSRF via the Program Management Unit for Human Resources&Institutional Development,Research and Innovation(B49G680115).

摘　　要：Silicon stands as a key anode material in lithium-ion battery ascribing to its high energy density.Nevertheless,the poor rate performance and limited cycling life remain unresolved through conventional approaches that involve carbon composites or nanostructures,primarily due to the un-controllable effects arising from the substantial formation of a solid electrolyte interphase(SEI)during the cycling.Here,an ultra-thin and homogeneous Ti doping alumina oxide catalytic interface is meticulously applied on the porous Si through a synergistic etching and hydrolysis process.This defect-rich oxide interface promotes a selective adsorption of fluoroethylene carbonate,leading to a catalytic reaction that can be aptly described as“molecular concentration-in situ conversion”.The resultant inorganic-rich SEI layer is electrochemical stable and favors ion-transport,particularly at high-rate cycling and high temperature.The robustly shielded porous Si,with a large surface area,achieves a high initial Coulombic efficiency of 84.7%and delivers exceptional high-rate performance at 25 A g^(−1)(692 mAh g^(−1))and a high Coulombic efficiency of 99.7%over 1000 cycles.The robust SEI constructed through a precious catalytic layer promises significant advantages for the fast development of silicon-based anode in fast-charging batteries.

关 键 词：Catalytic interface MESOPOROUS Inorganic-rich SEI Silicon anode Lithium-ion batteries 

分 类 号：TM912[电气工程—电力电子与电力传动]