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Multiscale Design Concepts for High-Areal-Capacity Cathodes Toward Practical Lithium Batteries
Yeongseok Kim1, Sangwon Lee2, Dong-Yeob Han1
1Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Korea.
Chemsuschem
|March 16, 2026
Summary
High-energy-density batteries utilize high-areal-capacity cathodes, but face challenges with binder properties and electrode structure. This review details strategies to overcome these limitations for improved battery performance.
Area of Science:
- Materials Science
- Electrochemistry
- Battery Technology
Background:
- High-energy-density batteries require high-areal-capacity cathodes to reduce inactive material content.
- Multiscale limitations, including binder chemo-mechanics and electrode tortuosity, hinder high-areal-capacity cathode development.
Purpose of the Study:
- To review strategies for realizing high-areal-capacity cathodes.
- To provide design guidelines for high-energy-density batteries.
Main Methods:
- Quantitative analysis of electrode thickness effects on energy density.
- Analytical methodologies for diagnosing electrode limitations.
- Discussion of binder properties and electrode architectural engineering.
Main Results:
- Increased electrode thickness can improve energy density.
- Specific binder properties and electrode architectures are crucial for overcoming limitations.
- Continuous pathways enhance conductivity and structural integrity.
Conclusions:
- Addressing microscale binder issues and macroscale electrode structure is key for high-areal-capacity cathodes.
- A comprehensive design approach bridging material and structural levels is essential for practical high-energy-density batteries.
