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非晶態(tài)氫氧化鎳材料電極理論放電容量估算
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O646

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國(guó)家自然科學(xué)基金（20563001）資助


Approximate Calculation on Theoretical Discharge Capacity of Amorphous Ni(OH)_2 Electrode
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    摘要:

    采用微乳液快速冷凍沉淀法制備出非晶態(tài)氫氧化鎳，將其粉體制成微電極作為研究電極，并以Pt電極作為輔助電極，Hg·HgO電極作為參比電極構(gòu)成三電極體系。通過(guò)對(duì)非晶態(tài)氫氧化鎳樣品電極過(guò)程極化曲線的測(cè)試，計(jì)算其交換電流密度和極限電流密度，并根據(jù)計(jì)算結(jié)果，估算出非晶態(tài)氫氧化鎳作為電極活性材料在充放電過(guò)程中電極反應(yīng)轉(zhuǎn)移電子數(shù)近似為1．35，理論放電比容量為393．26mAh／g，表明具有較高的電化學(xué)容量。

    Abstract:

    Amorphous nickel hydroxide powder was prepared successfully by the method of micro emulsion deepfreeze deposition. Using tiny electrode of sample powder as researching electrode, Pt as assistant electrode and Hg-HgO as referenced electrode, we tested the polarization curve of amorphous Ni(OH)2 powder and calculated j0 and jd. The resalt showed that the number of electron exchange on charging and discharging was 1.35 according to our approximate calculation, and its theoretical discharge capacity was 393.26 mAh/g, so it has high electrochemical capacity.

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劉長(zhǎng)久 尚偉.非晶態(tài)氫氧化鎳材料電極理論放電容量估算[J].稀有金屬材料與工程,2007,36(1):75~77.[Liu Changjiu, Shang Wei. Approximate Calculation on Theoretical Discharge Capacity of Amorphous Ni(OH)_2 Electrode[J]. Rare Metal Materials and Engineering,2007,36(1):75~77.]
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  • 最后修改日期:2006-09-05
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