Zinc surface morphological variations and ionic mass transfer rates in alkaline solution

I. Arise*, T. Homma, F. R. McLarnon, Y. Fukunaka

*この研究の対応する著者

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

A horizontal upward-facing Zn anode was electrochemically dissolved in aqueous alkaline electrolyte. A plane-parallel upward-facing Ni(OH) 2/NiOOH cathode was combined with this Zn anode in a single cell, divided by a polymer separator. This configuration can be considered as a model single pore inside the mesoporous space of a Zn-NiOOH battery cell. It also insures that ionic mass transfer by diffusion and migration is dominant over that by natural convection. The morphological variations of the Zn anode surface plane were examined during the discharge operation of the Zn-NiOOH model cell. The two-dimensional transient concentration profiles of each ion accompanying the electrochemical dissolution of Zn anode in the alkaline electrolyte were numerically calculated. The surface morphological variations of the Zn anode were discussed with the aid of numerical simulation. ZnO precipitation on the Zn anode surface was confirmed to be dependent on the horizontal distance from the cell separator. The numerical model provides insight to the analysis of observed morphological variations along the anode surface.

本文言語English
ホスト出版物のタイトルElectrodeposition for Energy Applications 2
ページ3-9
ページ数7
21
DOI
出版ステータスPublished - 2011 12 1
イベントElectrodeposition for Energy Applications 2 - 219th ECS Meeting - Montreal, QC, Canada
継続期間: 2011 5 12011 5 6

出版物シリーズ

名前ECS Transactions
番号21
35
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Conference

ConferenceElectrodeposition for Energy Applications 2 - 219th ECS Meeting
国/地域Canada
CityMontreal, QC
Period11/5/111/5/6

ASJC Scopus subject areas

  • 工学(全般)

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