Mesoporous graphite felt electrode prepared via thermal oxidative etching on all-vanadium redox flow batteries

被引：0
|
作者：
Park, Seung Hwa [1 ,2 ]
Ha, Jinho [3 ]
Kim, Dong Wook [1 ,2 ]
Hwang, Chihyun [2 ]
Choi, Jung-Il [3 ,4 ]
Park, Ho Seok [1 ]
Kim, Youngkwon [2 ]
机构：
[1] School of Chemical Engineering, Sungkyunkwan University, Gyeonggi-do, Suwon,16419, Korea, Republic of
[2] Advanced Batteries Research Center, Korea Electronics Technology Institute, Gyeonggi-do, Seongnam,13509, Korea, Republic of
[3] School of Mathematics and Computing (Computational Science and Engineering), Yonsei University, Seoul,03722, Korea, Republic of
[4] Department of Battery Engineering, Yonsei University, Seoul,03722, Korea, Republic of
来源：
Chemical Engineering Journal | 1600年 / 500卷
关键词：
Vanadium redox flow batteries (VRFBs) have attracted considerable attention due to their outstanding safety; design flexibility; and high performance. However; the severe polarization and the limited activity of carbon-based electrodes confine VRFB applications to large-scale energy storage systems. This study introduces a facile method for preparing mesoporous graphite felt (mp-GF) via thermal decomposition; employing a manganese oxide coating derived from alkylammonium permanganate. The resulting mp-GF offers mesopores; abundant oxygen-containing functional groups; and Mn3O4 catalysts; enhancing electrochemical activity and electrolyte utilization. VRFBs assembled with mp-GF electrodes achieved a voltage efficiency of 83.1 % and an energy efficiency of 80 % at a high current density of 200 mA cm−2; outperforming the 78.3 % and 75.3 % efficiency of thermally treated graphite felt (TGF); the conventional electrode in VRFBs. We further investigate the dynamics of VRFBs using an electrochemical model that incorporates parameter identification based on the measured charge–discharge curves. The identified specific surface area of mp-GF is approximately 30 times greater than that of thermal-treated graphite felt. Consequently; the cell with mp-GF operates within a broader state of charge (SOC) range and at lower overpotentials. © 2024 Elsevier B.V;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 50 条
  • [41] Dimensional analysis of a flow-by porous electrode and demonstration to all-vanadium redox flow batteries thereon
    Pathak, Akanksha
    Sharma, Ashwini Kumar
    Gupta, Anoop Kumar
    JOURNAL OF ENERGY STORAGE, 2021, 44
  • [42] Characteristics of Graphite Felt Electrodes Treated by Atmospheric Pressure Plasma Jets for an All-Vanadium Redox Flow Battery
    Jirabovornwisut, Tossaporn
    Singh, Bhupendra
    Chutimasakul, Apisada
    Chang, Jung-Hsien
    Chen, Jian-Zhang
    Arpornwichanop, Amornchai
    Chen, Yong-Song
    MATERIALS, 2021, 14 (14)
  • [43] Copper nanoparticle-deposited graphite felt electrodes for all vanadium redox flow batteries
    Wei, L.
    Zhao, T. S.
    Zeng, L.
    Zhou, X. L.
    Zeng, Y. K.
    APPLIED ENERGY, 2016, 180 : 386 - 391
  • [44] Numerical analysis of vanadium crossover effects in all-vanadium redox flow batteries
    Won, Seongyeon
    Oh, Kyeongmin
    Ju, Hyunchul
    ELECTROCHIMICA ACTA, 2015, 177 : 310 - 320
  • [45] Boosting performance of Ti3C2TX/Bi modified graphite felt electrode for all-vanadium redox flow battery
    Li, Qiang
    Pei, Dongyang
    Zhang, Xianduo
    Sun, Hong
    ELECTROCHIMICA ACTA, 2024, 473
  • [46] Superior Electrocatalytic Activity of a Robust Carbon-Felt Electrode with Oxygen-Rich Phosphate Groups for All-Vanadium Redox Flow Batteries
    Kim, Ki Jae
    Lee, Heon Seong
    Kim, Jeonghun
    Park, Min-Sik
    Kim, Jung Ho
    Kim, Young-Jun
    Skyllas-Kazacos, Maria
    CHEMSUSCHEM, 2016, 9 (11) : 1329 - 1338
  • [47] Electrochemical modification of graphite felt electrode for vanadium redox flow battery
    Li Xiao-Gang
    Huang Ke-Long
    Tan Ning
    Liu Su-Qin
    Chen Li-Quan
    JOURNAL OF INORGANIC MATERIALS, 2006, 21 (05) : 1114 - 1120
  • [48] Low-Temperature Nitrogen-Doping of Graphite Felt Electrode for Vanadium Redox Flow Batteries
    He, Zongqi
    Zhou, Xinjie
    Zhang, Yue
    Jiang, Fengjing
    Yu, Qingchun
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2019, 166 (12) : A2336 - A2340
  • [49] Mitigation of water and electrolyte imbalance in all-vanadium redox flow batteries
    Shin, Jeongmin
    Jeong, Byeongseon
    Chinannai, Muhammad Faizan
    Ju, Hyunchul
    Electrochimica Acta, 2021, 390
  • [50] NTO laminated graphite felt as high-performance negative electrode for vanadium redox flow batteries
    Liu, Wen-Fei
    Kim, Kue-Ho
    Ahn, Hyo-Jin
    JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 954
12345