I see lots of novel battery anodes do not have a voltage plateau in their galvanometric charge/discharge curves, indicating pseudocapacitive storage mechanisms.
For fundamental research, I see this as a good argument to say they are better classed as supercapacitor electrodes rather than battery anodes, but does this really have any practical implications? Why should I prefer a commercial battery to have a voltage plateau? Couldn't I just use voltage stabilising circuitry to maintain a constant output?
This is called a DC-DC converter and this device is now present in the vast majority of batteries. For clarification, this is not about stabilization (when a significant part of the energy being lost), but about converting of electrical current with relatively high efficiency.
Michael Greaves
Your first statement is at least controversial. How, then, is the classic intercalate? And why only anodes?
As for the second phrase, if you focus on the production, it doesn’t matter how the constant operating voltage of the battery is achieved. For the manufacturer, only the production cost-consumer characteristic ratio plays a role.
Thanks Vadim S. Gorshkov!
To give a bit more context, I research 2D nanomaterials (such as graphene), and they typically show promise in replacing graphite in Li-ion batteries. Because of their extremely high surface area there is a wide range of adsorption energies, and cyclic voltammograms and galvanometric curves are therefore quite smooth like a supercapacitor.
For example, Figure 6 in this paper:
Article NLL-Assisted Multilayer Graphene Patterning
So my question is essentially just whether or not this is important. From what you've said, I understand you don't think it is important so long as the product manufacturer can include cost-effective voltage-stabilisation.
This is called a DC-DC converter and this device is now present in the vast majority of batteries. For clarification, this is not about stabilization (when a significant part of the energy being lost), but about converting of electrical current with relatively high efficiency.
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