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yexuqing新虫 (文学泰斗)
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磷酸鋰鐵動力鋰電池的機會與挑戰 2008/7/31
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??????F????????C???c???? 2008/7/31 [ [url= ocPrint(7089)]?? ?? ?? ?[/url] | ?? ?] ?? ?? ]?????1991 ????SONY ??????????????????????a?????????^15 ?????????????и????????L??h??????????????????M???y??????a?????????x??????????????????????????????C??P?????X?????????????2006 ??????繲?мs28 ?|?w???????a?????a??_50 ?|??????A??2007 ???мs27 ?|?w??????????????a???A?????_55 ?|???????? ?????x??????С???y????a?????????L??????????????g???10 ?????к????@??????????????w?e???С??P?????X??18650 ???????????????????1991 ??????r??0.7Ah ???????????2.6Ah ???????y?a?????y????a????r?g???L???к????????????S?L????????????????????M?Юa????????????????????????????????????????????_????F???}?????????y?S?????M????ɑ]????????棬?????挦???a????????????????????I?????e?O?????д???????????_?l??????????????????????????_?l?????????????????????g?_?l?????????????????????????????????F??С?????????????????????????????????????????????g?????????????????????????O????u?????????????????????P?I????g???}?? ????????(LiMPO4)?????l? Goodenough ??????1996 ???????????????f???????l????????????????????(Ordered-olivine)?Y????Rhombohedral NASICON ?Y?????^??????????????????ο????????O????????K????????F????????D?(a)?f????x???????λ????????^???????????F (LiFePO4)?U??????γ??????F?????Y????????????F???????F?g?????????F?x???????????????????|(Interface)???D?(b)?t???????????F???????F????w?Y??????????????F?????r????r?x??(Fe+3/Fe+2)???????????????PO4??????x???????????x????Y???У????c???γ???????????r?I?????^???y??x???????????????i??????Y?????^??????c?????γ???I?Y?^?????????????????????FePO4 ?Y???е?????????^????????????????????????????????????????????h???????????@?????????F????????|???????е????????????  ?D???(a) Goodenough ???????????????LiFePO4??FePO4??????????Y????(b)LiFePO4??FePO4 ????w?Y?? ??LiMPO4??Y???У??^?????(M)????Fe ???????????????????????^????????i(Mn)???(Co)???(Ni)??????????????O???????????????F????????????3.4V ???????????????????????3.6V ????0.2V ??????????i???λ?t???_3.9V???c?F?е???i??????????????3.8V ?^???????????аl??????????????в????????D?????^????????F????????i???????????????????????i?m?????????????????F????? 0.5V ??????????????????????????F?????15% ??  ?D??????????F????????i????????????^ ???????????????Y?????У????^?????λ?????????????????w????У??????????????????e(Hexagonal Close Packed; HCP)?????У???D????????@??????п????????????????S?Y???????^?????????λ???????cPO4?????w???B???????????x????????g?????x???????????S??????M???Y?????????x?????y??LiMnPO4??LiCoPO4??LiNiPO4??????????M???w????w????????????(PO4)-3??x??????w?e/ ?????^???????????????????????H???????????????????????LiFePO4???????????????в????У???x??U????^??????????????????????F??????????мs10-9S/cm ???h??LiCoO2??????s10-3 S/cm)??LiMnO4??????s10-5S/cm)??????C?^?????????????????????x????????????????????????????H???????????????P?I???}??  ?D??????б??????w?Y??????x????LiMPO4??U???? ??????F????l??????? ??????F?????????????????????????????Y??????????u????^???У???Y??????L???????????????????????????F??????u????^???з????????Fe+2 ??????Fe+3?M?????????LiFePO4??????????????F????F??????????????????LiFePO4????|?????W???????????????????????????u???^???У??????????????????????LiFePO4?u???^???е??P?I???g????????棬????????F??????????O??????a?u???У??????w?c????????债??c?ЙC???????NMP?????????????PVDF???????{?^???е???????{?ωT???O????u???У????????|?c??????????????O?????????????O??????^???е??????????????O????|???????M????????????W????? ??????F??????Y?????????????????l????????????h?????????_1000 ??????????????????о??l?F???????l?????M?г???y?????????????м???????F??D??????????????F???O?cMCMB???O???M???????1.2M LiPF6/EC:EMC ???????y??????M?в?????l???????h?????y??Y??????Y?????^????100 ?γ?????h?y??? 37??C ???h???y???????????????????????60% ??????55??C ???????l??????????????????????30% ???????Ч?????о??l?F????????^?????h?????y?????O????????迹?????????????????M???????????У???l?F????O???????F????e??????????????????F?????????l??????F????Y?????????????U?????O???棬????????????????????ν??????????????????????????????O???????棬?M????????F????O??????????????????????????F?????о??????  ?D???C-LiFePO4/MCMB ???M????????????l??????????h?????y??? ??????F?????δ???l??c???? ?????г????N??????O???????????????????^??????п?????????????????F????????i?????????е???????|???@??????N?????????????????????????F???????F??????????????????????????????????l?????????????F?m????????????????????????_??l???r?g???L?????????H????????????м??g???????????g?? ????????????????????????????????u??????a?^?????????????????x?????????????????????????u???????????u?????????????????u???^???е??????????????????F???u???????????????????????a??С?????????????a????????|???????????M??????????????????u?????????????g???m???????F??????F??????????????????u????????F???u?????????M????^?????????????S??????????B???Y??????????u??????????????????F????????a?????????????|?????????δ????H???????a??????A???????????15~25 ?????g???K??????Щ??????Q????????????10 ?????????????????????F??????_?l?????????????????}??δ??????S???????????a?u?????????????е?????????????挦????????}??????ЙC???????c??????????????????????????S?????a??????F??????????}???????_?????? ????????????N??????O??????????????^ ???O???? ???? LiCoO2 ????? LiNiCoO2 ??i?? LiMn2O4 ??????F LiFePO4 ??????i LiMnPO4 ?????? 3.6V 3.7V 3.8V 3.4V 3.9V ????????? (?????r/??) 145 165 110 150 150 ????? ?? ?? ?? ?? ?? ??h???? >500?? >500?? >500?? >1000?? >1000?? ??? ???/???? >40 >30 15-25* 15-25* *?????a?A??? ?????????? / ?y?????????? ????????????I?????s?I259??????????Y??????http://www.materialsnet.com.tw/DocView.aspx?id=7028 |
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