Multi-core-shell-structured LiFePO_(4)@Na_(3)V_(2)(PO_(4))_(3)@C composite for enhanced low-temperature performance of lithium-ion batteries

作     者：Xing-Xing Gu Shuang Qiao Xiao-Lei Ren Xing-Yan Liu You-Zhou He Xiao-Teng Liu Tie-Feng Liu Xing-Xing Gu;Shuang Qiao;Xiao-Lei Ren;Xing-Yan Liu;You-Zhou He;Xiao-Teng Liu;Tie-Feng Liu

作者机构：Chongqing Key Laboratory of Catalysis and New Environmental MaterialsCollege of Environment and ResourcesChongqing Technology and Business UniversityChongqing 400067China Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle upon Tyne NE18STUK GRINM Group Co.Ltd.Beijing 100088China College of Materials Science and EngineeringZhejiang University of TechnologyHangzhou 310014China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2021年第40卷第4期

页      面：828-836页

核心收录：

学科分类：0808[工学-电气工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China(No.51902036) the Natural Science Foundation of Chongqing Science&Technology Commission(No.cstc2019jcyj-msxm1407) the Natural Science Foundation of Chongqing Technology and Business University(No.1952009) the Science and Technology Research Program of Chongqing Municipal Education Commission(Nos.KJQN201900826 and KJQN201800808) the Venture&Innovation Support Program for Chongqing Overseas Returnees(No.CX2018129) the Innovation Group of New Technologies for Industrial Pollution Control of Chongqing Education Commission(No.CXQT19023) the Engineering and Physical Sciences Research Council(EPSRC)(No.EP/S032886/1) the Key Disciplines of Chemical Engineering and Technology in Chongqing Colleges and Universities during the 13th Five Year Plan 

主　　题：LiFePO_(4)@Na_(3)V_(2)(PO_(4))_(3)@C composite Multi-core-shell Low-temperature Lithium-ion batteries 

摘      要：In this work,a multi-core-shell-structured LiFePO_(4)@Na_(3) V_(2)(PO_(4))_(3)@C(LFP@NVP@C) composite was successfully designed and prepared to address inferior low-temperature performance of LiFePO_(4) cathode for lithium-ion *** electron microscopy(TEM) confirms the inner NVP and outer carbon layers coexisted on the surface of LFP *** evaluated at low-temperature operation,LFP@NVP@C composite exhibits an evidently enhanced electrochemical performance in term of higher capacity and lower polarization,compared with LFP@*** at-10℃ with 0.5 C,LFP@NVP@C delivers a discharge capacity of ca.96.9 mAh-g^(-1) and discharge voltage of ca.3.3 V,which is attributed to the beneficial contribution of NVP *** ICON-structured NVP with an open framework for readily insertion/desertion of Li+ will effectively reduce the polarization for the electrochemical reactions of the designed LFP@NVP@C composite.