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MH-Ni電池中稀土貯氫合金微結(jié)構(gòu)的XRD研究
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TM912.9

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國家“863”混合電動車專項(2005AA501540)和上海市納米專項(05nm05025)


XRD Study on Microstructure of Rare Earth Containing Hydrogen Storage Alloy in Ni-MH Battery
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    摘要:

    提出了分離微晶和微應(yīng)力兩種引起X衍射線條寬化效應(yīng)的最小二乘方法。用該方法分析研究了不同工藝制備的貯氫合金的微結(jié)構(gòu),對比研究了MH-Ni電池中的貯氫合金在活化前后和循環(huán)壽命實驗前后微結(jié)構(gòu)的變化。結(jié)果表明活化對負極材料微結(jié)構(gòu)產(chǎn)生重大影響;循環(huán)壽命實驗后貯氫合金微結(jié)構(gòu)的變化與循環(huán)條件密切相關(guān)。

    Abstract:

    A least square method for separating two broadening effects caused by crystallite and micro-stress has been proposed and was applied to study the micro-structure of hydrogen storage alloys prepared by different methods. Changes of microstructure after activation and lifetime testing in Ni-MH battery have been comparatively investigated. The results show that the effect of activation on microstructure of the negative electrode material is significant. It is also found that the microstructure changes of the material are dependent on the lifetime testing conditions.

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婁豫皖 馬麗萍 李曉峰 夏保佳 楊傳錚. MH-Ni電池中稀土貯氫合金微結(jié)構(gòu)的XRD研究[J].稀有金屬材料與工程,2006,35(3):412~417.[Lou Yuwan, Ma Liping, Li Xiaofong, Xia Baojia, Yang Chuanzhong. XRD Study on Microstructure of Rare Earth Containing Hydrogen Storage Alloy in Ni-MH Battery[J]. Rare Metal Materials and Engineering,2006,35(3):412~417.]
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  • 收稿日期:2004-12-24
  • 最后修改日期:2005-04-25
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