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首页> 外文期刊>Journal of Applied Electrochemistry >Suppression of the #alpha#->#beta#-nickel hydroxide transformation in concentrated alkali: Role of dissolved cations
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Suppression of the #alpha#->#beta#-nickel hydroxide transformation in concentrated alkali: Role of dissolved cations

机译:在浓碱中抑制#alpha#->#beta#-氢氧化镍的转化:溶解阳离子的作用

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摘要

The presence of dissolved cations such as Al and Zn in alkaline electrolyte (6 M KOH) suppresses the #alpha#->#beta#-nickel hydroxide transformation. The uptake of Al (10 mol%) and Zn (30 mol%) exhibited by the active material likely stabilizes the #alpha#-phase. Dissolved Al is deleterious to the performance of the nicke hydroxide electrode, whereas, dissolved Zn enhances the specific discharge capacity of nickel hydroxide by approximately 25% showing that the mode of metal uptake is different in the two cases.
机译:碱性电解质(6 M KOH)中存在溶解的阳离子(例如Al和Zn)会抑制#alpha#->#beta#-氢氧化镍的转化。活性物质所表现出的Al(10mol%)和Zn(30mol%)的摄取可能稳定#α#相。溶解的Al对氢氧化镍电极的性能有害,而溶解的Zn将氢氧化镍的比放电容量提高了约25%,表明两种情况下金属的吸收方式不同。

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