Update on Development of 360V, 28kWh Lithium-Ion Battery

Davies, Francis; Darcy, Eric; Cowles, Phil; Irlbeck, Brad; Weintritt, John

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NASA NTRS · 20060013093

Update on Development of 360V, 28kWh Lithium-Ion Battery

Davies, Francis·Darcy, Eric·Cowles, Phil·Irlbeck, Brad·Weintritt, John

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Abstract

Engineering unit submodule batteries (EUSB) the 360V, 28kWh EAPU battery were designed and assembled by COM DEV. These submodules consist of Sony Li-Ion 18650HC cells in a 5P-41S array yielding 180V, 1.4 kWh. Tests of these and of substrings and single cells at COM DEV and at JSC under various performance and abuse conditions demonstrated that performance requirements can be met. The thermal vacuum tests demonstrated that the worst case hot condition is the design driver. Deficiencies in the initial diode protection scheme of the battery were identified as a result of test failures. Potential solutions to the scheme are under development and will be presented.

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Davies, Francis, Darcy, Eric, Cowles, Phil, Irlbeck, Brad, Weintritt, John. 2005-09-01. Update on Development of 360V, 28kWh Lithium-Ion Battery. https://ntrs.nasa.gov/citations/20060013093

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