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High-Temperature Sodium/Metal Chloride Storage Battery

M. Vallance[1], and R. White[2]
[1]General Electric Global Research Center, Niskayuna, NY, USA
[2]Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA
发布日期 2008

Sodium/metal chloride storage batteries, used in hybrid propulsion applications, provide high energy and power densities safely and reliably.

To understand the dynamics of electrochemical cycling, a high-temperature sodium/ferrous chloride storage cell was modeled in two dimensions. The time-dependent solution shows that a reaction front, starting at the interface with the negative electrode, moves deeper into the positive electrode with increasing depth of discharge.

Cell potential falls continuously as the discharge front moves deeper; Ohmic resistance in the porous electrode limits cell performance.

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