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Li-Ion Batteries for Space Applications: High Specific Energy and Wide-Operating TemperatureCompared to the conventional Ni-Co oxides (with or without AI additions), the NMC (1/3:1/3:1/3) cathode provides marginal improvement in specific capacity. However, some of the formulations based on the solid solutions of layered Li2Mn03 and LiM02 (M = Mn0.5Ni0.5} have shown capacities as high as 250 mAh/g, combined with high cell voltages (4.5 V) and with the likelihood of enhanced thermal stability. Multi-component electrolytes with low EC-proportions and selected co-solvents provide significant improvement in the low temperature performance, down to -60 C, combined with the non-flammable attribute from the co-solvents. The NMC cathode shows good compatibility with the carbonate-based low temperature electrolytes. Impressive performances have been realized at low temperatures of <= 30 C. Electrolytes with high salt concentration and high EC content fare well at room temperatures, while the formulations with low EC content and low salt concentration are preferred at low temperatures. DPA studies reveal increased SEI growth on the electrodes, especially anode, upon irradiation. Performance of low temperature electrolytes in prototype cells corroborate the findings from laboratory cells.
Document ID
20110013172
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Smart, Marshall
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Whitacre, Jay
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
West, William
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Manthiram, A.
(Texas Univ. Austin, TX, United States)
Prakash, G. K. S
(University of Southern California CA, United States)
Bugga, Ratnakumar
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 25, 2013
Publication Date
December 4, 2006
Subject Category
Spacecraft Propulsion And Power
Meeting Information
Meeting: 2nd Conference on Advances in Lithium Battery Technologies: Lithium Battery Power 2006
Location: Miami, FL
Country: United States
Start Date: December 4, 2006
Distribution Limits
Public
Copyright
Other
Keywords
storage
lithium ion batteries
calendar life

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