出版日期：2025-08-31 00:00:00

著者：Chun-Chi Lu; Hsiu Fen Lin; Jen-Hsien Huang; Yin-Cheng Yen; Wei Kong Pang; Huei Chu Weng; Shih-Chieh Hsu; Zong-Liang Tseng

著錄名稱、卷期、頁數：Journal of Energy Storage 136, 118390

摘要：Despite the intrinsic safety and considerable capacity of the Li3VO4 (LVO) anode, its inherently low electronic conductivity significantly impedes its practical application. Metal–organic frameworks (MOFs) present several notable advantages for use in electrochemical energy storage systems, including highly tunable structural and chemical properties, as well as uniform dispersion of metal centers. In this study, a carbon-coated and Cr3+ doped LVO anode has been synthesized through a two-step pyrolysis process, employing the as-prepared MIL-47 as a dual-source precursor for both vanadium and carbon. The uniform carbon coating acts as an effective conduction pathway, while Cr3+ doping further reduces the band gap (Eg) of LVO, collectively enhancing its electrochemical performance. Consequently, the modified LVO anode demonstrates a high capacity of 397.0 mAh/g at 0.1C, excellent rate capability with 282.0 mAh/g at 10C, and superior cycling stability, retaining 283.8 mAh/g at 2.0C after 200 cycles. When the modified LVO anode is assembled into a lithium-ion capacitor (LIC) paired with an activated carbon (AC) cathode, the resulting LIC exhibits outstanding performance, achieving an energy density of 120.0 Wh/kg at a power density of 275 W/kg, along with excellent cycling stability, retaining 81.7 % of its capacity at 1.0 A/g after 4000 cycles.

語言：en

ISSN：2352-152X; 2352-1538

期刊性質：國外

收錄於：SCI

審稿制度：否

國別：NLD

出版型式：電子版,紙本