Li-Ion Cells Employing Electrolytes With Methyl Propionate and Ethyl Butyrate Co-Solvents

TBMG-11365

10/01/2011

Abstract
Content

Future NASA missions aimed at exploring Mars and the outer planets require rechargeable batteries that can operate at low temperatures to satisfy the requirements of such applications as landers, rovers, and penetrators. A number of terrestrial applications, such as hybrid electric vehicles (HEVs) and electric vehicles (EVs) also require energy storage devices that can operate over a wide temperature range (i.e., –40 to +70 °C), while still providing high power capability and long life. Currently, the state-of-the-art lithiumion system has been demonstrated to operate over a wide range of temperatures (–30 to +40 °C); however, the rate capability at the lower temperatures is very poor. These limitations at very low temperatures are due to poor electrolyte conductivity, poor lithium intercalation kinetics over the electrode surface layers, and poor ionic diffusion in the electrode bulk.

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Citation
"Li-Ion Cells Employing Electrolytes With Methyl Propionate and Ethyl Butyrate Co-Solvents," Mobility Engineering, October 1, 2011.
Additional Details
Publisher
Published
Oct 1, 2011
Product Code
TBMG-11365
Content Type
Magazine Article
Language
English