Bio-based carbon additivesforenhanced lead-acid battery performance/ Mark Lorence S. Baylet, Vincent S. Dusaran, Jayson P. Futol, Jerome O. Montañez, and Jerwen K. Pit.--

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Baylet, Mark LorenceS [author]

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TextPublication details: Manila: Technological University of the Philippines, 2025.Description: x, 68pages: 29cmContent type:

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BTH TK 146 B39 2025

Dissertation note: College Of Engineering.-- Bachelor of science in electrical engineering: Technological University of the Philippines, 2025. Summary: This study explores the use of bio-based carbon additives derived from agricultural waste, specifically corn cobs, coconut husks, and rice husks, to improve the electrochemical performance of lead-acid batteries. With the growing demand for energy storage systems and the environmental concerns associated with conventional battery materials, there is an urgent need for sustainable alternatives. In this research, the selected biomass materials underwent carbonization and chemical activation using potassium hydroxide to produce activated carbon. This activated carbon was then incorporated into the negative electrode paste of lead-acid battery prototypes. A series of 2V and 12V batteries were fabricated to evaluate the effects of different types and concentrations of activated carbon on key performance indicators such as open-circuit voltage, internal resistance, and capacity. The 2V prototypes showed that coconut husk-based activated carbon at a concentration of 0.8 grams delivered the highest capacity of 22.63 mAh, significantly exceeding the control battery which recorded 11.67 mAh. Rice husk performed best at 0.8 grams with a capacity of 15.82 mAh, while corn cob showed optimal performance at 1.2 grams with a capacity of 10.96 mAh. These optimal concentrations were then applied to 12V battery prototypes, where coconut husk again produced the best result with a capacity of 173.08 mAh, followed closely by rice husk at 171.15 mAh. The findings demonstrate that activated carbon derived from agricultural waste, especially coconut husk, can significantly enhance the performance of lead-acid batteries. This approach not only improves battery efficiency but also provides an environmentally friendly solution for the reuse of organic waste, contributing to more sustainable energy storage technology.

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Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TK 146 B39 2025 (Browse shelf(Opens below))	c.1	Not for loan		BTH0006548

Bachelor's thesis

College Of Engineering.--
Bachelor of science in electrical engineering: Technological University of the Philippines,
2025.

Includes bibliographic references and index.

This study explores the use of bio-based carbon additives derived from agricultural
waste, specifically corn cobs, coconut husks, and rice husks, to improve the
electrochemical performance of lead-acid batteries. With the growing demand for energy
storage systems and the environmental concerns associated with conventional battery
materials, there is an urgent need for sustainable alternatives. In this research, the selected
biomass materials underwent carbonization and chemical activation using potassium
hydroxide to produce activated carbon. This activated carbon was then incorporated into
the negative electrode paste of lead-acid battery prototypes. A series of 2V and 12V
batteries were fabricated to evaluate the effects of different types and concentrations of
activated carbon on key performance indicators such as open-circuit voltage, internal
resistance, and capacity. The 2V prototypes showed that coconut husk-based activated
carbon at a concentration of 0.8 grams delivered the highest capacity of 22.63 mAh,
significantly exceeding the control battery which recorded 11.67 mAh. Rice husk
performed best at 0.8 grams with a capacity of 15.82 mAh, while corn cob showed
optimal performance at 1.2 grams with a capacity of 10.96 mAh. These optimal
concentrations were then applied to 12V battery prototypes, where coconut husk again
produced the best result with a capacity of 173.08 mAh, followed closely by rice husk at
171.15 mAh. The findings demonstrate that activated carbon derived from agricultural
waste, especially coconut husk, can significantly enhance the performance of lead-acid
batteries. This approach not only improves battery efficiency but also provides an
environmentally friendly solution for the reuse of organic waste, contributing to more
sustainable energy storage technology.

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