Mapping Phase Diagrams of Carbonates and Esters: Exploring Low-Temperature Frontiers for the Operation of Batteries and Capacitors

Abstract

Binary phase diagrams of carbonates and esters were systematically measured, and the binary interaction parameters were thermodynamically and computationally evaluated. Based on these parameters, ternary and quaternary phase diagrams were reliably calculated and plotted for the carbonates and esters. The results showed that the freezing point of a solvent can be effectively lowered by adding the right solvent component in the right amount so that electrolytes as low-melting as 100 degrees C can be formulated. The effectiveness could be further enhanced by adding a component with properties similar to the host component whose freezing dominates that of the electrolyte.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2004
Accession Number
ADA433338

Entities

People

  • Michael S Ding
  • T. Richard Jow

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Capacitors
  • Carbonate Esters
  • Carbonates
  • Chemical Stability
  • Diagrams
  • Electrolytes
  • Energy
  • Freezing
  • Ionic Liquids
  • Low Temperature
  • Melting
  • Melting Point
  • Phase
  • Phase Diagrams
  • Phase Transformations
  • Physical Properties
  • Transition Temperature

Readers

  • Combustion science or combustion engineering.
  • Computational Modeling and Simulation
  • Organic Chemistry