Effects of flaky rare earth oxide additives on the high temperature performance of nickel electrodes
来源期刊：Journal of Rare Earths2010年第1期
论文作者：方庆 成艳 简旭宇 朱磊 蔚海军 王忠 蒋利军
文章页码：72 - 78
摘 要：Effects of flaky rare earth oxide additives including Er2O3,Tm2O3,and Yb2O3,Lu2O3 on high temperature and high rate discharge performance of nickel electrodes were investigated.The discharge efficiency at 0.2C reached 96% at 60 oC for electrodes with 1 at.% flaky rare earth oxides.The high rate discharge performance for electrodes with flaky rare earth oxides were improved significantly,for example,discharge efficiency at 5C improved from 50% to 70%.The results showed that the end charging potential of the nickel electrodes with flaky rare earth oxides were higher than that without rare earth oxide additives,but lower than that with normal rare earth oxide additives.The CVs experimental results suggested that flaky rare earth oxides increased the oxygen evolution potential and improved the reversibility of nickel electrodes.
方庆1，成艳2，简旭宇1，朱磊1，蔚海军1，王忠1，蒋利军1
1. Energy Materials and Technology Research Institute,General Research Institute for Non-Ferrous Metals2. Center for Biomedical Materials and Tissue Engineering,Academy for Advanced Interdisciplinary Studies,Peking University
摘 要：Effects of flaky rare earth oxide additives including Er2O3,Tm2O3,and Yb2O3,Lu2O3 on high temperature and high rate discharge performance of nickel electrodes were investigated.The discharge efficiency at 0.2C reached 96% at 60 oC for electrodes with 1 at.% flaky rare earth oxides.The high rate discharge performance for electrodes with flaky rare earth oxides were improved significantly,for example,discharge efficiency at 5C improved from 50% to 70%.The results showed that the end charging potential of the nickel electrodes with flaky rare earth oxides were higher than that without rare earth oxide additives,but lower than that with normal rare earth oxide additives.The CVs experimental results suggested that flaky rare earth oxides increased the oxygen evolution potential and improved the reversibility of nickel electrodes.
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