Improved Parameterization of Ethylene Carbonate Model for Density and Transition Temperature
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ECS Transactions
A new electrolyte chemistry is suggested to replace aqueous-based alkaline solutions for Mg-Ni rechargeable batteries that have high theoretical energy density, low cost, long cycle life, and no safety issues. The addition of potassium hydroxide and nano-sized clay particles to polyvinyl alcohol both increase conductivity to nearly 0.1 S/cm. The clay particles reduce the polymer crystallinity, thus increase conductivity; although the addition of more than 5 wt% clay actually reduces conductivity values. A mechanism is suggested for this behavior that includes the interaction of the clay with ion channels within the polymer helix. ©The Electrochemical Society.