The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries

A zinc-air (Zn-air) battery was fabricated using porous Zn anode, an air cathode, and 6 M KOH-sago gel electrolyte. The porous Zn anode was prepared by mixing Zn powder and agar binder at different concentrations to achieve the desired conductivity and physical properties. Agar is an abundant...

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Main Author:	Masri, Mohamad Najmi
Format:	Thesis
Language:	English
Published:	2013
Subjects:	TN1-997 Mining engineering Metallurgy
Online Access:	http://eprints.usm.my/43815/1/Mohamad%20Najmi%20Masri24.pdf
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id	my-usm-ep.43815
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spelling	my-usm-ep.438152019-04-12T05:26:16Z The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries 2013-05 Masri, Mohamad Najmi TN1-997 Mining engineering. Metallurgy A zinc-air (Zn-air) battery was fabricated using porous Zn anode, an air cathode, and 6 M KOH-sago gel electrolyte. The porous Zn anode was prepared by mixing Zn powder and agar binder at different concentrations to achieve the desired conductivity and physical properties. Agar is an abundant natural polymer that does not require tedious and costly processing or preparation. Agar is also a gel-forming environmental friendly material. Meanwhile, the presence of KOH causes the growth of ZnO needle structures to cover the Zn-active material. Zn-agar binder without KOH produced the highest discharge capacity of 505 mAhg1. By contrast, the addition of KOH reduced the discharge capacity. The introduction of Super P improved the electrochemical performance of the batteries. The advantages of using Super P in batteries include high purity, large area, and highly structured body. The use of Super P additive in porous Zn anode enhanced the Zn-air battery discharge capacity because of the efficient and better voltage stability obtained from such an anode. The specific discharge capacity and power density of Zn anode with 2 wt% Super P were 776 mAhg1 and 20 mWcm2, respectively. Morphological images and structural properties were also analyzed to support these observations. Super P acted as a bridge in the Zn powders and improved the electrochemical performance of the Zn-air batteries. 2013-05 Thesis http://eprints.usm.my/43815/ http://eprints.usm.my/43815/1/Mohamad%20Najmi%20Masri24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TN1-997 Mining engineering Metallurgy
spellingShingle	TN1-997 Mining engineering Metallurgy Masri, Mohamad Najmi The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries
description	A zinc-air (Zn-air) battery was fabricated using porous Zn anode, an air cathode, and 6 M KOH-sago gel electrolyte. The porous Zn anode was prepared by mixing Zn powder and agar binder at different concentrations to achieve the desired conductivity and physical properties. Agar is an abundant natural polymer that does not require tedious and costly processing or preparation. Agar is also a gel-forming environmental friendly material. Meanwhile, the presence of KOH causes the growth of ZnO needle structures to cover the Zn-active material. Zn-agar binder without KOH produced the highest discharge capacity of 505 mAhg1. By contrast, the addition of KOH reduced the discharge capacity. The introduction of Super P improved the electrochemical performance of the batteries. The advantages of using Super P in batteries include high purity, large area, and highly structured body. The use of Super P additive in porous Zn anode enhanced the Zn-air battery discharge capacity because of the efficient and better voltage stability obtained from such an anode. The specific discharge capacity and power density of Zn anode with 2 wt% Super P were 776 mAhg1 and 20 mWcm2, respectively. Morphological images and structural properties were also analyzed to support these observations. Super P acted as a bridge in the Zn powders and improved the electrochemical performance of the Zn-air batteries.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Masri, Mohamad Najmi
author_facet	Masri, Mohamad Najmi
author_sort	Masri, Mohamad Najmi
title	The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries
title_short	The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries
title_full	The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries
title_fullStr	The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries
title_full_unstemmed	The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries
title_sort	study of agar binder and super p additive in porous zinc anode for zinc-air batteries
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
publishDate	2013
url	http://eprints.usm.my/43815/1/Mohamad%20Najmi%20Masri24.pdf
_version_	1747821284687872000

The Study Of Agar Binder And Super P Additive In Porous Zinc Anode For Zinc-Air Batteries

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