基于钛酸钡/聚噻吩的电致变色超级电容器电极  

Electrochromic Supercapacitor Electrode Based on Barium Titanate Polythiophene

作　　者：唐运周[1] 龙锦中 黄斌斌[1] TANG Yun-zhou;LONG Jin-zhong;HUANG Bin-bin(Guangxi Vocational Technical Institute of Industry,Nanning 530001,China)

机构地区：[1]广西工业职业技术学院,南宁530001

出　　处：《有色金属（冶炼部分）》2023年第8期89-95,103,共8页Nonferrous Metals（Extractive Metallurgy)

基　　金：广西工业职业技术学院资助项目(2019015)。

摘　　要：电致变色功能引入超级电容器时可以通过颜色变化防止其过度充电。通过化学氧化聚合成功制备了一种基于钛酸钡和聚噻吩(PEDOT)的电致变色超级电容器电极材料。该电极材料显示出核壳纳米结构,具有115.3 F g的高电容值,并且在1500次循环后能保留93.0%。此外,由于PEDOT自身的电致变色特性,得到的复合电极在充放电过程中会发生颜色的变化,充放电前后具有52.9%的光学调制,进而以可观测的方式直观展示当前能量存储水平。Electrochromic functionality is introduced into supercapacitors to preventing them from overcharging.A high-performance electrochromic supercapacitor electrode material based on barium titanate(BT)and polythiophene(PEDOT)was successfully prepared by chemical oxidation polymerization.The electrode material shows core-shell nanostructures and a high capacitance value of 115.3 F g,and can retain 93.0%of the initial capacitance value after 1500 cycles.In addition,due to the electrochromic characteristics of PEDOT,the prepared composite electrode will undergo color changes during the charging and discharging process and has an optical modulation of 52.9%before and after being fully charged and discharged,thus enabling electrochromic energy storage.This electrochromic supercapacitor electrode directly displays the current energy storage level in an observable way.

关 键 词：钛酸钡 聚3 4-乙烯二氧噻吩 电致变色 超级电容器 可视化储能 

分 类 号：TB34[一般工业技术—材料科学与工程]