Zinc Ion Hybrid Capacitors: Key Parameters for Energy Density
Author Information
Author(s): Wu Jiacheng, Zhu Di, Pan Yuqi, Prabowo Justin, Wei Li, Chen Yuan
Primary Institution: The University of Sydney
Hypothesis
The practical device energy density of zinc ion hybrid capacitors is influenced by four critical parameters.
Conclusion
To achieve application-relevant energy density in zinc ion hybrid capacitors, specific ranges for four parameters must be met simultaneously.
Supporting Evidence
- Four parameters need to be achieved simultaneously within narrow ranges to deliver application-relevant energy density.
- Specific parameter windows include areal mass loading of 10-20 mg cm−2 and specific capacity greater than 100 mAh g−1.
- A high N/P ratio is detrimental to energy density, and should be controlled below 20.
- A low E/C ratio below 5 is desirable for achieving high energy density.
Takeaway
To make batteries that store a lot of energy, we need to carefully balance four important things about how they are built.
Methodology
The study analyzes the effects of four critical parameters on the energy density of zinc ion hybrid capacitors using a representative device model.
Limitations
The study does not account for all practical challenges in achieving the optimal parameters in real-world applications.
Digital Object Identifier (DOI)
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