In this study we investigated the evolution of nickel hydroxide, which acts at the positive electrode of the Ni/Cd, Ni/NIH and Ni/H{sub}2 alkaline batteries. We found that the addition of bismuth oxide in the course of the active material preparation prevents the dissolution-re-crystallization processes of the nickel hydroxide that are harmful to the electrode efficiency. From XRD and SEM studies, it is shown that treatment of the bismuth doped-nickel hydroxide by hydrogen in 5 N KOH electrolyte prevents metallic nickel formation. Moreover, it appears to stabilize the α-type nickel hydroxide structure, preventing its transformation into the β-Ni(OH){sub}2 phase. Finally, an implementation of these findings towards the most efficient use of nickel positive electrodes is shown.
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机译：在这项研究中，我们研究了氢氧化镍的蒸馏，其作用于Ni / Cd，Ni / NiH和Ni / H {ul} 2碱性电池的正极。我们发现在活性材料制剂过程中加入氧化铋，防止了对电极效率有害的氢氧化镍的溶解重结晶方法。从XRD和SEM研究中，显示在5 n KOH电解质中通过氢气处理氢氧化镍氢氧化镍的处理可防止金属镍形成。此外，似乎稳定α型氢氧化镍结构，防止其转化为β-Ni（OH）{亚} 2相。最后，示出了朝向最有效地使用镍正电极的这些发现的实施。
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