黑龙江科技大学学报2025，Vol.35Issue(2)：204-210,217,8.DOI:10.3969/j.issn.2095-7262.2025.02.006
OAC对PVA凝胶及PPy/OAC-PVA超级电容器电化学性能影响
Effect of OAC on electrochemical performance of PVA gel and OAC-PVA supercapacitors
摘要
Abstract
This paper aims to improve the magnification performance of flexible quasi-solid superca-pacitors.The study consists of preparing a hydrogel electrolyte(OAC-PVA)with chemical cross-linking method;studying the effects of OAC on the morphology and functional group structure of the composite hydrogel by SEM and FT-IR,optimizing the preparation process of polypyrrole(PPy)by using homoge-neous design method,and analyzing the effect of OAC on the ionic conductivity of the gel and the electro-chemical performance of the integrated capacitor by electrochemical testing.The results show that the ion-ic conductivity of PVA increases to 0.123 S/cm by chemical bonding between OAC and PVA.The spe-cific capacitance of the PPy/OAC-PVA capacitors prepared from OAC-PVA gel is 750 mF/cm2 and ca-pacitance retention rate is 66.7%at 20 mA/cm2 current density,which is 75 mF/cm2 higher than that of PPy/PVA,and the capacitance retention rate increases by 2.8%.This results show that the functional group structure inside the PVA gel affected by OAC can improve the ionic conductivity of the electrolyte,thereby improving the rate performance of the integrated supercapacitor.关键词
氧化活性炭/官能团/一体化结构/柔性固态超级电容器Key words
oxidized activated carbon/functional groups/all-in-one configured structure/flexible solid-state supercapacitors分类
化学化工引用本文复制引用
白洋,党莉莉,张涛..OAC对PVA凝胶及PPy/OAC-PVA超级电容器电化学性能影响[J].黑龙江科技大学学报,2025,35(2):204-210,217,8.基金项目
黑龙江省省属高等学校基本科研业务费项目(2022-KYYWF-0542) （2022-KYYWF-0542）
