An Inexpensive Paper-Based Aluminum-Air Battery
Ani Avoundjian1, Vicente Galvan2, Frank A Gomez3
1Department of Chemistry and Biochemistry, California State University, Los Angeles, 5151 State University Drive, Los Angeles, CA 90032-8202, USA. aavound4@calstatela.edu.
Micromachines
|November 8, 2018
Summary
This study presents an improved, low-cost paper-based aluminum-air battery using potassium hydroxide (KOH) electrolyte, capable of powering small electronic devices like LEDs and medical testers.
Area of Science:
- Electrochemistry
- Materials Science
- Energy Storage
Background:
- Traditional batteries face limitations in cost, portability, and simplicity.
- Paper-based batteries offer a promising low-cost and portable alternative.
- Aluminum-air batteries are a viable option for low-power applications.
Purpose of the Study:
- To demonstrate an improved and inexpensive paper-based aluminum-air battery.
- To optimize device dimensions, electrode size, and electrolyte concentration for enhanced performance.
- To assess the battery's capability to power small electronic devices.
Main Methods:
- Fabrication of paper-based aluminum-air batteries.
- Optimization of device parameters including dimensions and electrode size.
- Electrolyte concentration adjustment using potassium hydroxide (KOH).
- Performance testing for amperage and power output.
- Evaluation of the battery's ability to power various small devices.
Main Results:
- Achieved a maximum amperage of 17.4 mA and maximum power of 3.0 mW.
- Optimized battery configuration involved a 9 cm² device with specific anode and cathode areas.
- 1.5 M potassium hydroxide (KOH) concentration yielded optimal results.
- Demonstrated successful powering of light-emitting diodes (LEDs), a flashlight, a glucometer, and a pregnancy test in series configuration.
Conclusions:
- The developed paper-based aluminum-air battery is an effective and inexpensive power source for small devices.
- Optimization of design parameters and electrolyte concentration is crucial for maximizing performance.
- This technology holds potential for applications in portable electronics and low-power medical devices.
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