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695044107

新虫 (小有名气)


[交流] 关于锂离子在电极材料传导的问题

各位前辈:
     我有一个问题,现在研究碳包裹活性材料,说可以防止团聚,但是活性材料被碳包裹了,锂离子还怎么和活性材料结合啊。外表的碳不会阻挡锂离子吗?还是锂离子可以透过碳,和活性材料结合。
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w_wwb

铁杆木虫 (知名作家)



695044107(金币+1): 谢谢参与
引用回帖:
5楼: Originally posted by xihuashida9682 at 2012-04-23 07:33:24:
这段描述很精彩,能否请你传上相应的文献,或者告知其出处。

该文献在小木虫中已经有了,你直接下载就可以!!!
Enhancing the performances of Li-ion batteries by carbon-coating: present and future.pdf

http://muchong.com/bbs/viewthread.php?tid=3892675
8楼2012-04-23 09:07:45
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1882070224

铁杆木虫 (正式写手)



695044107(金币+1): 谢谢参与
碳作为conductive materials ,一般是microporous or mesoporous的结构
2楼2012-04-22 23:17:46
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tianyiking

木虫 (职业作家)



695044107(金币+1): 谢谢参与
锂离子可以在较薄的碳层中迁移,PRL有报道
3楼2012-04-23 01:04:18
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sssddd9090

木虫 (正式写手)



695044107(金币+1): 谢谢参与
the coating layers are capable
of improving the ionic or electronic conductivity, suppressing
phase transition, increasing structural stability, decreasing the
disorder of cations in crystal sites, reducing transition metal
dissolution, acting as a HF scavenger to reduce the electrolyte
acidity, favoring the formation of solid–electrolyte-interface
(SEI) film on the anode surface, and so on, electrode resistance,
side reactions and heat generation during cycling are decreased,
which consequently leads to a remarkable improvement in cycle
life, rate capability, reversible capacity, coulomb efficiency of
the first cycle, and overcharge tolerance
4楼2012-04-23 06:36:00
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