Does Ragone plot analysis exist at the system level?

Ragone plot analysis at the system level is lacking. There are few Ragone plot characterizations at the system level. This phenomenon is not specific to Ragone plots but rather symptomatic of general research trends, where comprehensive, system-level analysis of energy storage systems is not as common.

Can Ragone plots be used for thermal energy storage?

Recent publications in the field of thermal energy storage have adopted the Ragone plot framework to great effect, see , , , . The most extensive investigation in this regard is . Here, analogies between electrochemical and thermal energy storage are developed, and Ragone plots are first adapted for TES.

Why is the Ragone plot important?

Because it clearly shows the effect of design variables on power and energy density, the Ragone plot is a compact way to investigate design trade-offs at the initial design stage on the same basis scenario. At the same time, by including both energy (density) and power (density), disingenuous performance reporting is prevented .

Can Ragone plots be used as a standard reporting framework for TES?

Ragone plots can be used as a standard reporting framework for TES. TES performance has the same fundamental problem as cell-based electrochemical storage: optimizing for either energy or power within a finite volume comes at the expense of the other.

What is Ragone plot methodology?

Recommendation of best practices for the application of Ragone plot methodology. The term “Ragone plot” refers to a popular and helpful comparison framework that quantifies the energy–power relationship of an energy storage material, device, or system.

How do I capture a relevant range of the Ragone plot?

To capture a relevant range of the Ragone plot, at least P UI should be applied for a meaningful insight into the operational behavior for high discharge powers, as this marks the beginning of a significant energy drop. Testing equipment must be selected for this required discharge power.