Cycle Life and Failure in the Nickel-Metal Hydride Battery

971227

06/18/1997

Event
SAE Aerospace Power Systems Conference
Authors Abstract
Content
Nickel-metal hydride cells use AB5, AB2, AB, and A2B compounds for the negative electrode. These intermetallic compounds differ in the ease with which they are activated and their kinetics in forming the hydride phase. Various techniques are used to optimize the storage capacities of these different classes of materials. Long cycle lives are difficult to attain primarily due to surface oxidation and the large expansion of the intermetallic lattice caused by the formation of the hydride phase. This article reviews the different failure modes active in intermetallic hydrides and the recent ways researchers have tried to increase the cycle life.
Meta TagsDetails
DOI
https://doi.org/10.4271/971227
Pages
7
Citation
Wasz, M., "Cycle Life and Failure in the Nickel-Metal Hydride Battery," SAE Technical Paper 971227, 1997, https://doi.org/10.4271/971227.
Additional Details
Publisher
Published
Jun 18, 1997
Product Code
971227
Content Type
Technical Paper
Language
English