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Updated: May 13, 2026

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
Published on: February 13, 2017
Organic rechargeable batteries with tailored voltage and cycle performance
Shinsuke Nishida1, Yosuke Yamamoto, Takeji Takui
1Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
Rechargeable batteries use organic materials for cathodes, allowing tunable voltage and performance via organic chemistry. Output voltage can be predicted early by analyzing redox potentials and molecular orbital energy levels.
Area of Science:
- Materials Science
- Electrochemistry
- Organic Chemistry
Background:
- Rechargeable batteries are crucial for portable electronics and renewable energy storage.
- Developing high-performance and cost-effective cathode materials remains a key challenge.
- Organic materials offer tunable properties for advanced battery applications.
Purpose of the Study:
- To fabricate rechargeable batteries using organic electron acceptors and donors as active cathode materials.
- To investigate the tunability of output voltage and cycle performance through organic chemistry.
- To establish a predictive model for output voltage based on material properties.
Main Methods:
- Synthesis and characterization of organic electron acceptors and donors.
- Fabrication of battery devices with organic cathode materials.
- Electrochemical testing to evaluate output voltage and cycle performance.
- Analysis of redox potentials and frontier molecular orbital energy levels.
Main Results:
- Successfully fabricated rechargeable batteries with organic cathode materials.
- Demonstrated that output voltage and cycle performance are tunable via organic chemistry.
- Established a correlation between output voltage and the redox potentials and frontier molecular orbital energy levels of cathode materials.
Conclusions:
- Organic electron acceptors and donors are viable active cathode materials for rechargeable batteries.
- Organic chemistry provides a powerful toolkit for tuning battery performance.
- The established link between electrochemical properties and molecular structure enables early-stage design and prediction of battery performance.
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