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室温下磷酸亚铁锂的电子电导率和离子电导率
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| 室温下磷酸亚铁锂的电子电导率和离子电导率？请附英文参考文献！谢谢 |
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shenjerry
至尊木虫 (职业作家)
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化学龙(金币+1, 博学EPI+1):谢谢你！但是我问的不是比容量！呵呵 2010-06-04 19:52:11
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实验室报道当0.1C充放电时，可以达到165mAh/g以上的比容量，实际达到135-145mAh/g，基本接近钴酸锂的水平 https://wenda.tianya.cn/wenda/thread?tid=1198200fe9885d40 |
2楼2010-06-04 15:47:03
flashpoint
金虫 (小有名气)
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化学龙(金币+4):谢谢你！非常专业~ 2010-06-05 08:21:08
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请看MIT蒋先生的2002年Nature mater文章，里面有详细的电子电导数据以及他们掺杂之后的结果， 还有通常不用离子电导，直接用扩散系数，当然你可以换算过去。 Chung, S. Y., J. T. Bloking and Y. M. Chiang (2002). "Electronically Conductive Phospho-Olivines as Lithium Storage Electrodes." Nature Materials 1(2): 123-128. 摘要：Lithium transition metal phosphates have become of great interest as storage cathodes for rechargeable lithium batteries because of their high energy density, low raw materials cost, environmental friendliness and safety. Their key limitation has been extremely low electronic conductivity, until now believedto be intrinsic to this family of compounds. Here we show that controlled cation non-stoichiometry combined with solid-solution doping by metals supervalent to Li+ increases the electronic conductivity of LiFePO4 by a factor of similar to10(8). The resulting materials show near-theoretical energy density at low charge/discharge rates, and retain significant capacity with little polarization at rates as high as 6,000 mA g(-1). In a conventional cell design, they may allow development of lithium batteries with the highest power density yet. quote]Originally posted by 化学龙 at 2010-06-02 19:54:40: 室温下磷酸亚铁锂的电子电导率和离子电导率？请附英文参考文献！谢谢 [/quote] |
3楼2010-06-05 00:59:38