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| Title: |
Lithium D-cell study
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| Author(s): |
Size, P.; Takeuchi, Esther S.
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| Abstract: |
The purpose of this contract is to evaluate parametrically the effects of various factors including the electrolyte type, electrolyte concentration, depolarizer type, and cell configuration on lithium cell electrical performance and safety. This effort shall allow for the selection and optimization of cell design for future NASA applications while maintaining close ties with WGL's continuous improvements in manufacturing processes and lithium cell design. Taguchi experimental design techniques are employed in this task, and allow for a maximum amount of information to be obtained while requiring significantly less cells than if a full factorial design were employed. Acceptance testing for this task is modeled after the NASA Document EP5-83-025, Revision C, for cell weights, OCV's and load voltages. The performance attributes that are studied in this effort are fresh capacity and start-up characteristics evaluated at two rates and two temperatures, shelf-life characteristics including start-up and capacity retention, and iterative microcalorimetry measurements. Abuse testing includes forced over discharge at two rates with and without diode protection, temperature tolerance testing, and shorting tests at three rates with the measurement of heat generated during shorting conditions.
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| NASA Center: |
NASA (non Center Specific)
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| Publication Date: |
Mar 31, 1993
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| Document Source: |
CASI |
| Online Source: |
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| Document ID: |
19940012032
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| Accession ID: |
94N16505
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| Publication Information: |
Number of Pages = 443 |
| Report Number: |
NAS 1.26:192705; NASA-CR-192705
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| Contract-Grant-Task Number: |
NAS9-18395 |
| Price Code: |
A19 |
| Keywords: |
ALKALINE BATTERIES; EXPERIMENT DESIGN; LITHIUM; MANUFACTURING; PERFORMANCE TESTS; STORAGE STABILITY; DEPOLARIZATION; ELECTRIC POTENTIAL; ELECTROLYTES; SERVICE LIFE;
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| Accessibility: |
Unclassified; No Copyright; Unlimited; Publicly available; Final Report |
| Updated/Added to NTRS: |
2005-08-25 |
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