Proceedings of the 1st International Conference on Islam, Science and Technology, ICONISTECH 2019, 11-12 July 2019, Bandung, Indonesia.

Research Article

Suppressing Al(OH)_3 Product Accumulation on Air Cathode of Al-Air Battery by Porous Silica Xerogel Composite Layer

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  • @INPROCEEDINGS{10.4108/eai.11-7-2019.2297410,
    author={H.  Aripin and Nurul  Hiron and Firmansyah M S Nursuwars and Nundang  Busaeri and Svilen  Sabchevski},
    title={Suppressing Al(OH)_3  Product Accumulation on Air Cathode of Al-Air Battery by Porous Silica Xerogel Composite Layer},
    proceedings={Proceedings of the 1st International Conference on Islam, Science and Technology, ICONISTECH 2019, 11-12 July 2019, Bandung, Indonesia.},
    publisher={EAI},
    proceedings_a={ICONISTECH},
    year={2021},
    month={1},
    keywords={porous silica xerogel insulating layer air cathode al air battery life time},
    doi={10.4108/eai.11-7-2019.2297410}
}
  • H. Aripin
    Nurul Hiron
    Firmansyah M S Nursuwars
    Nundang Busaeri
    Svilen Sabchevski
    Year: 2021
    Suppressing Al(OH)_3 Product Accumulation on Air Cathode of Al-Air Battery by Porous Silica Xerogel Composite Layer
    ICONISTECH
    EAI
    DOI: 10.4108/eai.11-7-2019.2297410
H. Aripin1,*, Nurul Hiron2, Firmansyah M S Nursuwars1, Nundang Busaeri1, Svilen Sabchevski1
  • 1: Department of Electrical Engineering, Faculty of Engineering, Siliwangi University, Jl. Siliwangi 24, Tasikmalaya 46115, Indonesia
  • 2: Lab. Plasma Physics and Engineering, Institute of Electronics of the Bulgarian Academy of Sciences, 72 Tzarigradsko Shose Blvd., Sofia 1784, Bulgaria
*Contact email: aripin@unsil.ac.id

Abstract

In this study, the suitability of the porous silica xerogel composite as an insulating layer to suppress the Al(OH)3 product accumulation on the air cathode of aluminum air battery (Al-air battery) has been investigated. The composite layers are composed of silica xerogel, graphite and black carbon. The coating process is done by spraying a composite solution on the cathode surface. In electrochemical experiments, an insulating layer has been successfully used to stabilize the output voltage in the battery with an insulating layer in the air cathode (BUL). It has been found that the cell voltage reaches stable values of about 0.7 V for 8 days for BUL while it drops for battery without an insulating layer (BWL). In BWL, the Al(OH)3 is a primary agent in limiting the voltage stability and life time. For four unit cell of battery, the electric power is over 40 mW, which was enough to operate an LED by serial connection.

Keywords
porous silica xerogel insulating layer air cathode al air battery life time
Published
2021-01-12
Publisher
EAI
http://dx.doi.org/10.4108/eai.11-7-2019.2297410
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