What is the peak power density of a flow battery?

Strikingly, the battery is capable of delivering a high limiting current density of ~7 A cm −2, and a high peak power density of 2.78 W cm −2, representing the highest peak power density for flow batteries in the open literature, which is even higher than that of commercialized fuel cells.

What is a peak power of a battery (SOP)?

The peak power of the battery (SOP) is an important parameter index for electric vehicle to improve the efficiency of battery utilization and ensure the safety of the system in the maximum limit. The estimation and prediction of SOP is based on a large number of test data at different temperature, different SOC and different time scales.

What is the power density of a lithium ion battery?

It is also demonstrated that the battery can deliver a high peak power density of 2.78 W cm −2 and a high limiting current density of ~7 A cm −2 at room temperature. Moreover, the battery is stably cycled for more than 20,000 cycles at a high current density of 600 mA cm −2.

What is peak power density?

The peak power density is usually called the maximum power density and is often used to evaluate the MEA performance of a fuel cell. From Fig. 1.13, it is obvious that the maximum power density is not achieved at maximum current density. FIGURE 1.13.

What is the peak power density of a fuel cell?

It can be seen that the power density initially increases with increasing current density, reaching a peak value of 0.74 W cm −2 at a current density of approximately 1.6 A cm −2. The peak power density is usually called the maximum power density and is often used to evaluate the MEA performance of a fuel cell.

How do you calculate the peak power of a battery?

The reference value of the battery peak power is obtained by multiplying the peak discharge current by the battery terminal voltage at the end of discharge. The experimental results of reference values at 70%, 50%, and 20% SOC are shown in Table 3.