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yexuqing

禁虫 (文学泰斗)

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violetzhao

金虫 (小有名气)

怎么没找到这篇文章,发个连接吧
3楼2009-03-12 13:47:24
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csulwp

金虫 (正式写手)

电池行业老兵

就这么一点内容?没有全文吗?
Shiningisnottheprivilegeofthesun,Ialsoshine.
2楼2009-03-12 09:34:46
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jocelyn-xixi

木虫 (正式写手)

4楼2009-03-12 16:52:44
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jocelyn-xixi

木虫 (正式写手)

The storage of electrical energy at high charge and discharge rate is
an important technology in today’s society, and can enable hybrid
and plug-in hybrid electric vehicles and provide back-up for wind
and solar energy. It is typically believed that in electrochemical
systems very high power rates can only be achieved with supercapacitors,
which trade high power for low energy density as they
only store energy by surface adsorption reactions of charged
species on an electrode material1–3. Here we show that batteries4,5
which obtain high energy density by storing charge in the bulk of a
material can also achieve ultrahigh discharge rates, comparable to
those of supercapacitors. We realize this in LiFePO4 (ref. 6), a
material with high lithium bulk mobility7,8, by creating a fast
ion-conducting surface phase through controlled off-stoichiometry.
A rate capability equivalent to full battery discharge in 10–20 s can
be achieved.
5楼2009-03-12 16:56:16
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