internal impedance

A high-precision internal impedance measurement method of storage battery based on DFT was presented.

基于离散傅里叶变换(DFT),提出一种准确测量蓄电池内部阻抗的方法.

The difference of catalytic activity between PtSn/ C with various Sn molar fractions may be caused by the particle size effect, alloying degree between Pt and Sn and the cell internal impedance.

导致不同比例PtSn催化剂活性差别的原因可能是由于Sn与Pt间的合金化程度不同和催化剂粒子尺寸效应及Sn含量对电池阻抗等几方面因素所致。

The dc input voltage to the converters is assumed to have zero internal impedance.

我们假设换流器的直流输入电源的内阻为零.

The results show that the electrode made from the modified materials have small internal impedance, high charge and discharge capacity and good cycle life.

结果表明，这种材料制备的电极，不仅内阻小，而且有高的充放电容量和好的循环寿命。