| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 11011599 | International Journal of Hydrogen Energy | 2018 | 6 Pages |
Abstract
In this study, a controlled addition of oxygen was used to rebalance the electrodes and replenish the electrolyte - as the added oxygen reacts with hydrogen that was formed during the corrosion process. Thus, the two most detrimental factors in cell ageing can be mitigated. To fully restore the electrolyte content as well as electrode balance, both oxygen and hydrogen are needed to compensate for the loss to hydroxide ions OHâ formed in the corrosion process. A proper optimization of the gas additions combined with a cell design including an excess amount of MH-alloy to compensate for the corrosion can substantially increase the cycle life of NiMH batteries.
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Authors
Yang Shen, Dag Noréus, Stina Starborg,