Various Alcohols as Electrolysis Suppressants in Zn-air Secondary Batteries

The gelling agent used in Zn-air cells plays a role in improving battery life. It prevents the evaporation of water and diffusion of $Zn^{2+}$ ions away from the current collector. Additional functionality was incorporated by replacing some of the gelling agents with new materials. Alcohols with mod...

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Bibliographic Details
Published in:Journal of electrochemical science and technology 2018, Vol.9 (4), p.339-344
Main Authors: Yang, Soyoung, Kim, Ketack
Format: Article
Language:Korean
Online Access:Get full text
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Summary:The gelling agent used in Zn-air cells plays a role in improving battery life. It prevents the evaporation of water and diffusion of $Zn^{2+}$ ions away from the current collector. Additional functionality was incorporated by replacing some of the gelling agents with new materials. Alcohols with moderate viscosity, namely maltose, sucrose, poly ethylene glycol 600, and 2-hydroxyethyl cellulose, were used to replace some gelling agents in this work. Among these alcohols, poly ethylene glycol 600 and 2-hydroxyethyl cellulose improved the cycle life of full cells. This improved cycle life was attributed to the inhibition of water electrolysis and the improved cycle life of the anode.
ISSN:2093-8551
2288-9221