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»¯Ñ§Áú(½ð±Ò+1, ²©Ñ§EPI+1):ллÄ㣡µ«ÊÇÎÒÎʵIJ»ÊDZÈÈÝÁ¿£¡ºÇºÇ 2010-06-04 19:52:11
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https://wenda.tianya.cn/wenda/thread?tid=1198200fe9885d40
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»¯Ñ§Áú(½ð±Ò+4):ллÄ㣡·Ç³£×¨Òµ~ 2010-06-05 08:21:08
Çë¿´MIT½¯ÏÈÉúµÄ2002ÄêNature materÎÄÕ£¬ÀïÃæÓÐÏêϸµÄµç×ӵ絼Êý¾ÝÒÔ¼°ËûÃDzôÔÓÖ®ºóµÄ½á¹û£¬
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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.
        ÕªÒª£ºLithium 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 »¯Ñ§Áú at 2010-06-02 19:54:40:
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