最近投了篇文章，有一个问题不知道怎么解决，审稿人说：
The density (g/cm3) of the electrode sheet needs to be provided, because this value is important to know a volumetric capacitance.
我得怎么补实验才能得到volumetric capacitance啊，density of the electrode sheet得怎么测得呢，我看很多文献也没有涉及到啊？？
The electrode density may be hard to measure, however, you can try to measure the tap density of your material instead ...hope this could be helpful...
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