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Assessment of Various Low Temperature Electrolytes in Prototype Li-Ion Cells Developed for ESMD ApplicationsDue to their attractive properties and proven success, Li-ion batteries have become identified as the battery chemistry of choice for a number of future NASA missions. A number of these applications would be greatly benefited by improved performance of Li-ion technology over a wider operating temperature range, especially at low temperatures, such as future ESMD missions. In many cases, these technology improvements may be mission enabling, and at the very least mission enhancing. In addition to aerospace applications, the DoE has interest in developing advanced Li-ion batteries that can operate over a wide temperature range to enable terrestrial HEV applications. Thus, our focus at JPL in recent years has been to extend the operating temperature range of Li-ion batteries, especially at low temperatures. To accomplish this, the main focus of the research has been devoted to developing improved lithium-ion conducting electrolytes. In the present paper, we would like to present some of the results we have obtained with six different ethylene carbonate-based electrolytes optimized for low temperature. In addition to investigating the behavior in experimental cells initially, the performance of these promising low temperature electrolytes was demonstrated in large capacity, aerospace quality Li-ion prototype cells, manufactured by Yardney Technical Products and Saft America, Inc. These cells were subjected to a number of performance tests, including discharge rate characterization, charge rate characterization, cycle life performance at various temperatures, and power characterization tests.
Document ID
20150014775
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Smart, M. C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ratnakumar, B. V.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Whitcanack, L. D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 3, 2015
Publication Date
July 28, 2008
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: International Energy Conversion Engineering Conference (IECEC)
Location: Cleveland, OH
Country: United States
Start Date: July 28, 2008
End Date: July 30, 2008
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
Wide Operating Temperature Electrolytes

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