Studies on PVA-CMC-KOH-H_2O Alkaline Polymer Electrolytes

Authors

An-bao YUAN, ,ZHAO Jun(Department of Chemistry,College of Sciences,Shanghai University,Shanghai 200444,China;

Abstract

A given amount of sodium carboxymethyl cellulose(CMC)was added to PVA complex and thus the PVA-CMC-KOH-H_(2)O alkaline polymer electrolyte with this modification was prepared.The properties of the polymer electrolyte films were characterized by AC impedance,cyclic voltammetry,differential thermal analysis and infrared spectroscopic analysis methods.The polymer electrolyte exhibited a high ionic conductivity,typically 10~(-2)S·cm~(-1) with an electrochemical stability window of about 1.6 V on stainless steel blocking electrodes.The influence of the film composition such as KOH,H_(2)O and CMC on ion conductivity was investigated.In addition,a preliminary study was carried out on the polymer electrolyte for Ni/MH battery.It was shown that the Ni/MH battery with the polymer electrolyte presented a good charge/discharge performance at lower discharge rates.

Keywords

Alkaline polymer electrolyte, PVA, CMC, Modification by blend, Ion conductivity

DOI Link

https://doi.org/10.61558/2993-074X.1695

Publication Date

2006-02-28

Online Available Date

2006-02-28

Revised Date

2006-02-28

Received Date

2006-02-28

Recommended Citation

An-bao YUAN. Studies on PVA-CMC-KOH-H_2O Alkaline Polymer Electrolytes[J]. Journal of Electrochemistry, 2006 , 12(1): 40-45.
DOI: 10.61558/2993-074X.1695
Available at: https://jelectrochem.xmu.edu.cn/journal/vol12/iss1/8