- Title
- The effect of barium hydroxide on the rechargeable performance of alkaline y-MnO₂
- Creator
- Bailey, Mark R.; Donne, Scott W.
- Relation
- Journal of the Electrochemical Society Vol. 159, Issue 7, p. A999-A1004
- Publisher Link
- http://dx.doi.org/10.1149/2.047207jes
- Publisher
- Electrochemical Society
- Resource Type
- journal article
- Date
- 2012
- Description
- A series of controlled current cycling experiments have been conducted to investigate the effect of barium hydroxide on the rechargeable performance of the alkaline manganese dioxide cathode. Analysis of the resulting discharge behavior revealed that the inclusion of Ba(OH)₂ suppresses the dissolution of Mn³⁺ ions during the latter stages of discharge. This in turn gave rise to improved rechargeable performance, with electrodes containing Ba(OH)₂ exhibiting both improved capacity retention and higher cumulative capacities. Similar effects were observed during the cycling of manganese dioxide in the presence of soluble Ba(II) ions, and the implications in terms of its underlying role considered. In both cases barium hydroxide was also noted to inhibit the formation of δ-MnO₂, and this was confirmed by X-ray diffraction and transmission electron microscopy.
- Subject
- barium hydroxide; rechargeable performance; alkaline manganese dioxide
- Identifier
- http://hdl.handle.net/1959.13/1056450
- Identifier
- uon:16046
- Identifier
- ISSN:0013-4651
- Rights
- © The Electrochemical Society, Inc. 2012. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Journal of the Electrochemical Society, Vol. 159, No. 7, pp. A999-A1004.
- Language
- eng
- Full Text
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