Poly(vinyl Alcohol) Borate Gel Polymer Electrolytes Prepared by Electrodeposition and Their Application in Electrochemical Supercapacitors

ACS Applied Materials & Interfaces
Mengjin JiangXiangwu Zhang

Abstract

Gel polymer electrolytes (GPEs) have been studied for preparing flexible and compact electrochemical energy storage devices. However, the preparation and use of GPEs are complex, and most GPEs prepared through traditional methods do not have good wettability with the electrodes, which retard them from achieving their performance potential. In this study, these problems are addressed by conceiving and implementing a simple, but effective, method of electrodepositing poly(vinyl alcohol) potassium borate (PVAPB) GPEs directly onto the surfaces of active carbon electrodes for electrochemical supercapacitors. PVAPB GPEs serve as both the electrolyte and the separator in the assembled supercapacitors, and their scale and shape are determined solely by the geometry of the electrodes. PVAPB GPEs have good bonding to the active electrode materials, leading to excellent and stable electrochemical performance of the supercapacitors. The electrochemical performance of PVAPB GPEs and supercapacitors can be manipulated simply by adjusting the concentration of KCl salt used during the electrodeposition process. With a 0.9 M KCl concentration, the as-prepared supercapacitors deliver a specific capacitance of 65.9 F g(-1) at a current density o...Continue Reading

References

Mar 31, 2005·Journal of the American Chemical Society·Md Abu Bin Hasan SusanMasayoshi Watanabe
Sep 14, 2010·Nano Letters·Chuizhou MengShoushan Fan
Jan 27, 2015·ACS Applied Materials & Interfaces·Won Gyun MoonJongheop Yi
Jun 9, 2015·Chemical Society Reviews·Cheng ZhongJiujun Zhang

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Citations

Nov 30, 2019·Chemical Communications : Chem Comm·Jeong Han LeeKwang Chul Roh
Sep 7, 2019·Chemistry : a European Journal·Chandan Kumar KaranManish Bhattacharjee
Nov 16, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Hemant CharayaHyun-Joong Chung

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