离子液体基凝胶电解质的制备及其在超级电容器中的应用

doi:10.3969/j.issn.0253-2417.2020.04.003

林产化学与工业 ›› 2020, Vol. 40 ›› Issue (4): 17-23.doi: 10.3969/j.issn.0253-2417.2020.04.003

离子液体基凝胶电解质的制备及其在超级电容器中的应用

南静娅¹,张盖同¹,王利军¹,汪宏生¹,储富祥^1,²,王春鹏^1,^2,*()

1. 中国林业科学研究院林产化学工业研究所; 生物质化学利用国家工程实验室; 国家林业和草原局林产化学工程重点实验室; 江苏省生物质能源与材料重点实验室; 江苏省林业资源高效加工利用协同创新中心, 江苏南京 210042
2. 中国林业科学研究院林业新技术研究所, 北京 100091

收稿日期:2020-02-03 出版日期:2020-08-28 发布日期:2020-08-21
通讯作者: 王春鹏 E-mail:wangcpg@163.com
作者简介:南静娅(1988-),女,山西运城人,助理研究员,主要从事生物基功能材料的研究工作
基金资助:
国家重点研发计划资助项目(2016YFD0600705)

Preparation of Ionic Liquid-based Gel Electrolytes and Application in Supercapacitors

Jingya NAN¹,Gaitong ZHANG¹,Lijun WANG¹,Hongsheng WANG¹,Fuxiang CHU^1,²,Chunpeng WANG^1,^2,*()

1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; Key Lab. of Biomass Energy and Material, Jiangsu Province; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, China
2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China

Received:2020-02-03 Online:2020-08-28 Published:2020-08-21
Contact: Chunpeng WANG E-mail:wangcpg@163.com

摘要/Abstract

摘要：

以大豆蛋白（SPI）和丙烯酰胺（AAm）复合交联制备出一种离子液体基凝胶聚合物电解质，并将其应用于超级电容器中，考察了超级电容器的电化学性能和可压缩性能。SPI与聚丙烯酰胺之间的协同作用，赋予凝胶电解质优异的压缩回弹性和耐疲劳强度，在经历80%的压缩应变100次循环后，仍可保持结构完整，应力保持率>80%，塑性变形率< 15%，能量损耗系数< 0.1。利用凝胶电解质组装的准固态超级电容器，具有优异的电化学性能，最大能量密度为25.99 W·h/kg，最大功率密度为3 600 W/kg，且器件整体可承受80%的压缩应变而不发生断裂或损坏，表现出优良的可压缩性和电容稳定性。

关键词: 离子液体, 凝胶电解质, 压缩回弹, 超级电容器, 电容稳定性

Abstract:

Soybean protein isolates (SPI) were integrated with polyacrylamide (PAAm) to form an ionic liquid-containing gel polymer as a new quasi-solid-state electrolyte, which could be used in supercapacitor. And the electrochemical performance and compressibility of supercapacitor were studied. The synergistic effect of SPI and PAAm endowed the gel electrolyte with excellent compressive resilience and fatigue resistance. Particularly, the gel electrolyte could maintain structural integrity even under 80% strain for 100 compression cycles, the plastic deformation was less than 15% and the energy loss coefficient was more than 0.1. The symmetric quasi-solid-state supercapacitor based on this gel electrolyte exhibited satisfied electrochemical performance, delivering the maximum energy density of 25.99 W·h/kg and the maximal power density of 3 600 W/kg. And the device could withstand 80% compression strain without structural fracture or damage, showing excellent compressibility and capacitive stability.

Key words: ionic liquid, gel electrolyte, compressive resilience, supercapacitor, capacitive stability

中图分类号:

TQ35

南静娅,张盖同,王利军,汪宏生,储富祥,王春鹏. 离子液体基凝胶电解质的制备及其在超级电容器中的应用[J]. 林产化学与工业, 2020, 40(4): 17-23.

Jingya NAN,Gaitong ZHANG,Lijun WANG,Hongsheng WANG,Fuxiang CHU,Chunpeng WANG. Preparation of Ionic Liquid-based Gel Electrolytes and Application in Supercapacitors[J]. Chemistry and Industry of Forest Products, 2020, 40(4): 17-23.

图/表 7

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离子液体基凝胶电解质的制备及其在超级电容器中的应用

Preparation of Ionic Liquid-based Gel Electrolytes and Application in Supercapacitors

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