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Application of expanded graphite-based materials for rechargeable batteries beyond lithium-ions
Le Li1, Weizhuo Zhang1, Weijie Pan1
1Shaanxi Key Laboratory of Industrial Automation, School of Mechanical Engineering, Shaanxi University of Technology, Hanzhong 723001, China.
Nanoscale
|November 17, 2021
Summary
Expanded graphite (EG) shows promise as a low-cost electrode material for next-generation rechargeable batteries beyond lithium-ion. EG
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Emerging rechargeable batteries beyond lithium-ion (e.g., sodium, potassium, zinc, magnesium, calcium, aluminum-ion) face challenges with suitable electrode materials.
- Expanded graphite (EG) offers a cost-effective, non-toxic material with a layered structure beneficial for ion storage.
Purpose of the Study:
- To review and summarize the use of expanded graphite (EG)-based materials in rechargeable batteries other than lithium-ion.
- To highlight the potential of EG composites for alkaline and multivalent ion storage.
Main Methods:
- Literature review and analysis of existing research on EG-based electrode materials.
- Evaluation of composite strategies and performance data for EG in various non-lithium-ion batteries.
Main Results:
- EG-based materials demonstrate suitability as electrodes for alkaline (Na+, K+) and multivalent ion (Mg2+, Zn2+, Ca2+, Al3+) batteries.
- Composite strategies enhance the performance of EG materials for these emerging energy storage systems.
Conclusions:
- Expanded graphite is a promising, versatile electrode material for next-generation rechargeable batteries.
- Further research into material design, reaction mechanisms, and performance optimization is crucial for advancing EG-based battery technologies.
