Hydrogel-Polymer Electrolyte for Electrochemical Capacitors with High Volumetric Energy and Life Span

被引:12
|
作者
Gajewski, Piotr [1 ]
Beguin, Francois [1 ]
机构
[1] Poznan Univ Tech, Berdychowo 4, PL-60965 Poznan, Poland
关键词
electrochemistry; energy transfer; gels; materials science; polymers; DOUBLE-LAYER CAPACITOR; SOLID-STATE SUPERCAPACITOR; GEL POLYMER; PERFORMANCE; SEPARATOR; MEMBRANE; CONDUCTIVITY;
D O I
10.1002/cssc.201903077
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
AC/AC (AC=activated carbon) electrochemical capacitors (ECs) were designed with a 1 mol L-1 lithium sulfate hydrogel- polymer electrolyte (HPE) based on carboxymethyl cellulose sodium salt (CMC). The electrochemical performance of the ECs was compared with that of cells composed of common separators such as a polyolefin membrane (Celgard 3501, polypropylene separator coated by surfactant) and a glass microfiber membrane (Whatman GF/A). The ECs with Celgard 3501 and home-made CMC-HPE demonstrated a higher volumetric energy than that with Whatman GF/A. However, after 120 h of floating at 1.5 V, the capacitance of the EC with Celgard 3501 decreased dramatically by 25 %, whereas with CMC-HPE and Whatman GF/A, the decrease was only 4 and 6 %, respectively. Post-mortem observations of the Celgard 3501 separator after floating suggested that the surfactant layer was removed, which caused a decrease of separator wettability, as confirmed by the slow evolution of the electrolyte contact angle on its surface. Hence, CMC-HPE is a very attractive option to develop aqueous-electrolyte-based ECs with an excellent life span and high volumetric energy density.
引用
收藏
页码:1876 / 1881
页数:6
相关论文
共 50 条
  • [41] Influence of aqueous electrolyte concentrationon parasitic reactions in high-voltage electrochemical capacitors
    He, Minglong
    Fic, Krzysztof
    Frackowiak, Elzbieta
    Novak, Petr
    Berg, Erik J.
    ENERGY STORAGE MATERIALS, 2016, 5 : 111 - 115
  • [42] Stretchable, high ionic conductivity dual-network hydrogel-polymer electrolytes containing imidazole ionic liquids for supercapacitor and strain sensor
    Liu, Xiang
    Ni, Zecheng
    Li, Weiyi
    Wang, Ping
    JOURNAL OF POLYMER RESEARCH, 2024, 31 (09)
  • [43] Electrochemical Properties of CMC–PVA Polymer Blend Electrolyte for Solid State Electric Double Layer Capacitors
    M. A. Saadiah
    M. Z. Kufian
    I. I. Misnon
    A. S. Samsudin
    Journal of Electronic Materials, 2021, 50 : 303 - 313
  • [44] Electrochemical Properties of Activated Carbon Capacitor Adopting a Proton-conducting Hydrogel Polymer Electrolyte
    Latifatu, Mohammed
    Kim, Kwang Man
    Kim, Yong Joo
    Ko, Jang Myoun
    ELASTOMERS AND COMPOSITES, 2012, 47 (04): : 292 - 296
  • [45] Volumetric performance and energy-storage mechanism of high-density Ni-based coordination polymer electrodes for hybrid capacitors
    Liu, Yuanyuan
    Yan, Yong
    Wang, Xiujie
    Yang, Zhi
    Li, Xinhua
    CHEMICAL ENGINEERING JOURNAL, 2025, 509
  • [46] Development, Performance, and Vehicle Applications of High Energy Density Electrochemical Capacitors
    Burke, Andrew F.
    Zhao, Jingyuan
    APPLIED SCIENCES-BASEL, 2022, 12 (03):
  • [47] High Volumetric Energy Density Capacitors Based on New Electrode Material Lanthanum Nitride
    Zhang, Wei-Bin
    Ma, Xue-Jing
    Loh, Adeline
    Li, Xiaohong
    Walsh, Frank C.
    Kong, Ling-Bin
    ACS ENERGY LETTERS, 2017, 2 (02): : 336 - 341
  • [48] High energy density, flexible, low temperature resistant and self-healing Zn-ion hybrid capacitors based on hydrogel electrolyte
    Ji, Guochen
    Hu, Ruofei
    Wang, Yihe
    Zheng, Junping
    JOURNAL OF ENERGY STORAGE, 2022, 46
  • [49] Ultra-high energy density integrated polymer dielectric capacitors
    Ren, Xintong
    Meng, Nan
    Ventura, Leonardo
    Goutianos, Stergios
    Barbieri, Ettore
    Zhang, Han
    Yan, Haixue
    Reece, Michael John
    Bilotti, Emiliano
    JOURNAL OF MATERIALS CHEMISTRY A, 2022, 10 (18) : 10171 - 10180
  • [50] Electrochemical studies of polyaniline in a gel polymer electrolyte - High energy and high power characteristics of a solid-state redox supercapacitor
    Prasad, KR
    Munichandraiah, N
    ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (12) : A271 - A274