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NASA NTRS · 20150008179

Improved Low Temperature Performance of Supercapacitors

Brandon, Erik J.·West, William C.·Smart, Marshall C.·Gnanaraj, Joe
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Abstract

Low temperature double-layer capacitor operation enabled by: - Base acetonitrile / TEATFB salt formulation - Addition of low melting point formates, esters and cyclic ethers center dot Key electrolyte design factors: - Volume of co-solvent - Concentration of salt center dot Capacity increased through higher capacity electrodes: - Zeolite templated carbons - Asymmetric cell designs center dot Continuing efforts - Improve asymmetric cell performance at low temperature - Cycle life testing Motivation center dot Benchmark performance of commercial cells center dot Approaches for designing low temperature systems - Symmetric cells (activated carbon electrodes) - Symmetric cells (zeolite templated carbon electrodes) - Asymmetric cells (lithium titanate/activated carbon electrodes) center dot Experimental results center dot Summary

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Brandon, Erik J., West, William C., Smart, Marshall C., Gnanaraj, Joe. 2013-10-28. Improved Low Temperature Performance of Supercapacitors. https://ntrs.nasa.gov/citations/20150008179

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