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Structural Characterization of LiFePO_4 based Ionic Conductivity Synthesized at Low temperatures

Structural Characterization of LiFePO_4 based Ionic Conductivity Synthesized at Low temperatures
低温合成LiFePO_4基离子电导率的结构表征
批准号:
20360288
负责人:
WASEDA Yoshio
金额:
$11.48万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2010

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英文摘要
Olivine-type LiFePO_4 is one of the promising cathode materials for Li-ion batteries, but the relationship between its electrochemical properties and structure is unclear. In this study, LiFePO_4 particles were synthesized through liquid and solid processes, and their charging/discharging properties and the Fe chemical state were investigated In-situ X-ray absorption spectroscopy at the Fe-K edge for obtaining the chemical variation of LiFePO_4 particles during charge/discharge cycles. The chemical state of Fe in LiFePO_4 particles has been found to correlate with the charging and discharging process. The effect of heat treatment was examined with respect to the structure and electrochemical properties of LiFePO_4 particles prepared by the polyol process. The appropriate heat treatment showed the improvement of their charging and discharging capacity.
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DOI: --
发表时间: 2009
期刊:
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影响因子: --
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通讯作者: 早稲田嘉夫
DOI: 10.1016/j.corsci.2008.02.022
发表时间: 2008-06
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影响因子: 8.3
作者: [Shigeru Suzuki;K. Shinoda;Masugu Sato;S. Fujimoto;M. Yamashita;H. Konishi;T. Doi;T. Kamimura;K. Inoue;Y. Waseda]
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15
    Middle-range order structure of multi-component Li ion conducting oxides
    • 批准号:
      24656364
    • 项目类别:
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    • 财政年份:
      2011
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    • 批准号:
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    • 项目类别:
      Grant-in-Aid for Scientific Research (A)
    • 资助金额:
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    • 财政年份:
      2005
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    • 依托单位:
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    • 批准号:
      15360397
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $9.09万
    • 财政年份:
      2003
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    • 依托单位:
    海外基金