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wn6228

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[交流] 求助:怎么用循环伏安算电容

求助:在不知道电极面积的情况下,怎么用循环伏安图算电容,谢谢.
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magicpopo

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电之炼金术士

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wn6228(金币+2):谢谢
C=Q/U
Q=I∫dt=I∫dU/u=(I/u)∫dU
u是循环伏安的扫描速度
做出循环伏安图以后,做I和U的积分
根据上面的式子,就可以求得电容了
2楼2007-07-07 17:36:48
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shuangyao

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wn6228(金币+2):谢谢
specific capacitance, C (F/g) = i△t/m△V

where i is the current used for charge/discharge, △t is the time
elapsed for the charge or discharge cycle, m is the mass of the
active electrode, and △V is the voltage interval of the charge or
discharge.
3楼2007-07-09 19:28:46
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