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yexuqing木虫之王 (文学泰斗)
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鋰離子電池高容量負極材料技術
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??x???????????O??????g 2009/3/6 [ [url= ocPrint(7611)]?? ?? ?? ?[/url] | ?? ?] ?? ?? ]?S??3C ???a???l?????????????????????????x??????S???????d???????????????y??O???????????ī????????????????????????(372 mAh/g)???δ??????????x????l????i???????_?l????????????O?????????F?????l?????c????????_?l???е?????桢?????????L??h?????????????}????O?????????????????????? ??x???? ?D????????x???????????????????x?????/ ?D?????????????????B?r????x????????????????O???????r??????????????????B?r????x????????O??????????K???????O??????????????h?^???У???x?????????O?????д???????????W???D??????档?????????O????(Positive)???????????? (Lithium Metal Oxide)LiMO2?T??????O(Negative)??????????|????????????ī????????????W??????????????????????O??????????^??????????????Ρ????ī????????r???????????γ?LixC ????????????????????372 mAh/g(LiC6)?????O?t?????  ?D?????x?????\???????????W???? ??????Si/C ??O?????_?l?F?r ????????????O?????????l??????????????^?Sn ??Sb ?????????????????????????W??????????????????s???е???????????z???(Li Uptake)????????λ?????????????h?????????c??????????????y??????????????????γ??N????????????????????Li4.4Si ?????????????_~4200 mAh/g ???h??????l????????y?????????????????R?????????c????h???????????o????I??????h????????????????????????????γ???????^???Е??a??400 % ???w?e?????????????w?e?????s??????a??????Cе?????????????????????????t???????????|?????c????????Σ??????????????????|??O?????x????????O???????????????????????c?????????T???W?????????N?????????????????????????N?? 2. ????????γ?Si/C ?}????? ????????????????????????????K??Si ???w??????У??????????????e???????(Disordered Carbon)?????g???c??????????????????????^???????a????????????б??o???p????ò??????Ч??Datta ??Guo ???Liu ??F??e???Polyacrylonitrile (PAN)??Polyalcohol (PVA)?? Polyvinyl Chloride (PVC)??????????A?????????????????(Pyrolysis)???γ???/ ???????}????????????????c??h?????????@???????????????T???о??t??^??????????c?????ī????γ?Si-C ?}??????????????{?????????|??????????l???O????_???m??????????^??????????x??????O?????W???????????????}???O?????????????????Wang ????t?L?????????????????z(Carbon Aerogel)???K?M???????????u????}???O????F??1450 mAh/g ?????????????K?????????50 ????h???D??(a)~(d)?@??????????????????}???O??Y?????D??(e)?鲻?????u??l???Si/Graphite/C ?}????????D??  ?D????????????????????}???O??Y????(a)???S?Y??? Ni Form ???????壻(b)??Ni Form???????????γ??Si-C ?}???O??(c)????F????u?????????- ??}??????TEM ??????(d)???F????u???????Si/C ?}????????Y????(e)???????l???????Si/Graphite/C ?}????????Y???????D 6. ????????????????Si/C??O??????g?l? ?????????????_?????????????????????c?L??h???????O?????O???????????????I?????a????g??ɡ??????????????g???????Q????????????s???}?????????????????????a??????????????????????????????????????????C??????????r?g(2~6 h)???D???????B????x(DLS)?????y??????????????????????????????????????50~80 nm ?????????F???????g???{???????????ī?c??????{???????????c???????u?????????????O??????????Y???O????????W?????У?????????????x??????c???????|????/ ?ī??????????????Cе?????g????????????O???????????????????????????w????e????????w?g????????????p??????????W?????W???????_????????桢????????????O?????  ?D??????????r?g??????????????шD ?Y??? ??x??????????????????l???????????O????????????3C ?y??????a??????????rЧ????e????δ???????????????????????????????????????O?????????????????}??Y???O??????????????????????????|??????????O????c?????????????????????錢??????????????|?????????a????懡??U???X??????????????????????a???????????????????????SiO2??SiC ?????????????????Y??????????錢??????????????????c?????ī??????????m????????????????z??????z????????????n?????????錢?????????????|????????????ī??????????????????????????n????????????????????????c???????????Y????????O?????????????????g?????F???????g???Cе?????g???_?l?????е??????(??15%)????????(??500 mAh/g)?????????????(8C/0.5C, ??95%)?c?L??h??????????}??????O????? ??????x???????????O??????g?????d?????g?mail??[/url][url=mailto:materialsnet@itri.org.tw]materialsnet@itri.org.tw ????????????????????????????????? / ?????????? ????????????I?????s?I267??????????Y??????http://www.materialsnet.com.tw/DocView.aspx?id=7591 |
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