中华医学超声杂志

应用化学 ›› 2020, Vol. 37 ›› Issue (5): 0-.

• 封面图片 •    下一篇

纤维素凝胶电解质及其在超级电容器中的应用

张晓博a,辛海瑛a,许爽a,张兴海b*(),王丽秋ac*()   

  1. a燕山大学环境与化学工程学院 河北 秦皇岛 066004
    b燕山大学体育学院 河北 秦皇岛 066004
    c南开大学先进能源材料化学教育部重点实验室 天津 300071
  • 收稿日期:2019-12-01 出版日期:2020-05-01 发布日期:2020-07-09
  • 通讯作者: 张兴海,王丽秋
  • 基金资助:
    河北省自然科学基金(B2019203500)、先进能源材料化学教育部重点实验室开放基金(2018)和河北省社科基金(HB18TY020)项目资助

Cellulose Gel Polymer Electrolytes and Its Application in Supercapacitors

ZHANG Xiaoboa,XIN Haiyinga,XU Shuanga,ZHANG Xinghaib*(),WANG Liqiuac*()   

  1. aCollege of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao,Hebei 066004,China
    bSchool of Physical Education,Yanshan University,Qinhuangdao,Hebei 066004,China
    cKey Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),College of Chemistry,Nankai University,Tianjin 300071,China
  • Received:2019-12-01 Published:2020-05-01 Online:2020-07-09
  • Contact: ZHANG Xinghai,WANG Liqiu
  • Supported by:
    Supported by Hebei Natural Science Foundation(No.B2019203500), the Open Fund of Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education(2018) and Hebei Social Science Foundation(No.HB18TY020)

摘要：

以纸浆为原料制备得到一种粘胶液,经静置水化交联,得到一种纤维素凝胶电解质(XWD-NaOH);添加亚铁氰化钾,使获得的新型纤维素凝胶电解质(XWD-NaOH-K4[Fe(CN)6])呈现良好的氧化还原活性,电导率达15.3 mS/cm;与XWD-NaOH相比,XWD-NaOH-K4[Fe(CN)6] 电解质超级电容器,在0.5 A/g电流密度下,比电容、功率密度和能量密度分别提高了57%、111%和 214%,并且体系具有更低的内阻、电荷转移电阻及高的循环稳定性。

关键词: 纸浆, 凝胶聚合物电解质, 亚铁氰化钾, 超级电容器

Abstract:

A cellulose gel electrolyte (XWD-NaOH) was obtained through static hydration and crosslinking of cellulose pulp viscose solution, followed by introducing potassium ferrocyanide into XWD-NaOH to give a gel electrolyte (XWD-NaOH-K4[Fe(CN)6]). XWD-NaOH-K4[Fe(CN)6] has excellent redox activity and ionic conductivity (15.3 mS/cm). At 0.5 A/g current density, XWD-NaOH-K4[Fe(CN)6] electrolyte supercapacitor exhibits an increase of the electrode specific capacitance, power density and energy density by 57%, 111% and 214% compared to those of XWD-NaOH system. The XWD-NaOH-K4[Fe(CN)6] system has low internal resistance, charge transfer resistance and high cycle stability

Key words: cellulose pulp, gel polymer electrolyte, potassium ferrocyanide, supercapacitor

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