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題名 | 氫氧化鎳粉末對鎳/氫電池電性的影響=Effect of Ni(OH)[feaf] Powder on Electrical Performance of Ni-MH Battery |
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作者 | 楊純誠; | 書刊名 | 明志技術學院學報 |
卷期 | 33 2001.06[民90.06] |
頁次 | 頁109-123 |
分類號 | 468.1 |
關鍵詞 | 鎳/氫電池; Ni(OH)[feaf]粉末; 電容量密度; AC電阻抗; Ni-MH battery; Ni(OH)[feaf] powder; Capacity density; AC impedance; |
語文 | 中文(Chinese) |
中文摘要 | 本研究主要以實驗室精製的Ni(OH)�秤誑蔗MOMG球狀的Ni(OH)�秤誑蝠s作成Ni(OH) �砲b電極,並進行電極電性測試,以瞭解在製備條件上及組成配方對電極性質的影響。導電 添加劑碳粉( AB50 )及石墨粉( graphite )添加在 Ni(OH) �笆q極中對電容量的影響做 比較分析,發現使用碳粉( AB50 ),OMG-Ni(OH) �秤誑蝴q容量密度可達 247mAh/g,而石 墨粉( graphite )則可達 257 mAh/g。 充放電效率可達 85% 至 89%。 由自行製備的 Ni(OH) �秤誑蝴q容量密度可達 283mAh/g,且平均工作電壓較高,充放電效率可達 96%,且 可逆性較佳。由 AC 電阻抗分析的結果,可判斷電極製備之條件好壞,發現電極活化前後電 阻抗有很大的差異。 由本實驗結果顯示自製的 Ni(OH) �秤誑膜� OMG 球狀的 Ni(OH) �秤� 末有更佳的電容量密度及高的工作電壓。 |
英文摘要 | This study is investigated on the electrical properties of lab-made Ni(OH) �� powder on Ni-MH battery. The positive Ni(OH) �� electrode was formed, then examined by a three-electrode system. The results of electrical characteristic properties of Ni (OH) �� powder can help understand the impact on the electrode preparation conditions and compositions. Two conductive materials, i.e., AB50 carbon powder and graphite powder were added in Ni(OH) �� powder to enhance the performance of Ni-MH battery, especially capacity. It was found that the Ni(OH) �� capacity density by adding graphite powder is about 257mAh/g. The current efficiency is between 85% to 89%; however, the capacity density of Lab-made Ni(OH) �� powder is 283mAh/g. The latter was found having much flat and higher of working potential. The current efficiency of lab-made Ni(OH) �� powder is 96%, having better reversibility. By AC impedance analyses, it was found that the electrode preparation conditions can be examined. The results shows that the impedance of Ni(OH) �� electrode is very significant different, when compare the results of before and after activation process. By this study, it was found that the performances of electrical properties of lab-made Ni(OH) �� powder are better than that of Ni(OH) �� OMG powder. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。