【求助】电流密度单位如何换算啊

There are two energy density to measure the current denisty depending on your requirment. One is specific mass density, typically is ampere/g, the other is specific volume density, typically is ampere/cm2

thanks!howerer,you did not tell me the answer actually.Cause they can be absolutly translated to the other in some way,what is my mind to .
thank you all the same!!

电流密度为单位面积上的电流，我知道这一种说法，另外一个推测是单位质量的电流，如果转换要知道此物质的密度，形状

个人意见:认为两种单位不能换算!

There are two energy density to measure the current denisty depending on your requirment. One is specific mass density, typically is ampere/g, the other is specific volume density, typically is ampere/cm2

谢谢解答，我也学了

需要测比表面积(cm2/g)
mA/cm2=mA/cm2/(cm2/g)

那么请问怎么从CV曲线算电流密度？