Development of ambient temperature secondary lithium cells

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Development of ambient temperature secondary lithium cells

Development of ambient temperature secondary lithium cells

Subbarao, S. / Shen, D.H. / Dawson, S. / Deligiannis, F. / Taraszkiewicz, J. / Halpert, G.

Under a NASA-OAST sponsored program, JPL is developing ambient temperature secondary lithium cells for future spacecraft applications. Prior studies on experimental laboratory type Li-TiS₂ cells yielded promising results in terms of cycle life and rate capability. To further access the performance of this cell, 5 A h engineering model cells were developed. Initially, baseline cells were designed and fabricated. Each cell had 15 cathodes and 16 anodes and the ratio of anode to cathode capacity is 6:1. A solution of 1.5 M LiAsF₆ in 2-MeTHF was used as the electrolyte. Cells were evaluated for their cycle life at C/2 and C/5 discharge rates and 100% depth of discharge. The cells were cycles between voltage limits 1.7 and 2.8 V. The rate of charge in all cases is C/10. The results obtained indicate that cells can operate at C/10-C/2 discharge rates and have an initial energy density of 70 W h kg^-1. Cells delivered more than 100 cycles at C/2 discharge rate. The authors describe the cell design, the test program, and the results obtained

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Title :

Development of ambient temperature secondary lithium cells

Additional title:

Entwicklung von Lithium-Sekundaerbatterien fuer die Umgebungstemperatur in der Raumfahrt

Contributors:

Subbarao, S. (author) / Shen, D.H. (author) / Dawson, S. (author) / Deligiannis, F. (author) / Taraszkiewicz, J. (author) / Halpert, G. (author)

Published in:

Space Electrochemical Research and Technology Conference, 14-16 April 1987, Cleveland, OH, USA ; 269-275

Journal of Power Sources ; 22 , 3-4

Publication date :

1988

Size :

7 Seiten, 3 Quellen

DOI :

https://doi.org/10.1016/0378-7753(88)80021-1

Type of media :

Article (Journal)

Type of material :

Print

Language :

English

Keywords :

ELEKTROLYT , RAUMTEMPERATUR , SEKUNDAERBATTERIE , LITHIUM , NASA (NATIONAL AERONAUTICS AND SPACE ADMINISTRATION) , LEBENSDAUER , DYNAMISCHES VERHALTEN , ENTLADUNGSKENNLINIE , ENERGIEDICHTE , QUALITAETSPRUEFUNG , RAUMFAHRT , WELTRAUMKRAFTWERK , TITANVERBINDUNG

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