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1. Overcurrent Abuse of Primary Prismatic Zinc–Air Battery Cells Studying Air Supply Effects on Performance and Safety Shut-Down

Author

Fredrik Larsson, Antti Rytinki, Istaq Ahmed, Ingvar Albinsson, and Bengt-Erik Mellander

Subjects
abuse, air supply, metal–air, overcurrent, overdischarge, primary battery, safety, suffocation, zinc (Zn)–air, Production of electric energy or power. Powerplants. Central stations, TK1001-1841, Industrial electrochemistry, TP250-261
Abstract

Overcurrent abuse has been performed on commercial 48 Ah primary prismatic zinc (Zn)–Air battery cells with full air supply as well as with shut-off air supply. Compared to other battery technologies, e.g., lithium-ion batteries, metal–air batteries offer the possibility to physically stop the battery operation by stopping its air supply, thus offering an additional protection against severe battery damage in the case of, e.g., an accidental short circuit. This method may also reduce the electrical hazard in a larger battery system since, by stopping the air supply, the voltage can be brought to zero while maintaining the energy capacity of the battery. Measurements of overdischarge currents and current cut-off by suffocation have been performed to assess the safety of this type of Zn–air battery. The time to get to zero battery voltage is shown to mainly be determined by the volume of air trapped in the cell.

Published
2017
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2. Overcurrent Abuse of Primary Prismatic Zinc–Air Battery Cells Studying Air Supply Effects on Performance and Safety Shut-Down

Author

Istaq Ahmed, Ingvar Albinsson, Bengt-Erik Mellander, Antti Rytinki, and Fredrik Larsson

Subjects
Battery (electricity), safety, 020209 energy, suffocation, Energy Engineering and Power Technology, 02 engineering and technology, Automotive engineering, Zinc–air battery, Materialteknik, lcsh:TK1001-1841, 0202 electrical engineering, electronic engineering, information engineering, Electrochemistry, overcurrent, Fysik, Electrical and Electronic Engineering, air supply, Trickle charging, abuse, metal–air, overdischarge, primary battery, zinc (Zn)–air, Materials Engineering, 021001 nanoscience & nanotechnology, Overcurrent, lcsh:Production of electric energy or power. Powerplants. Central stations, lcsh:Industrial electrochemistry, Physical Sciences, Environmental science, Automotive battery, Current (fluid), 0210 nano-technology, Short circuit, Voltage, lcsh:TP250-261
Abstract

Overcurrent abuse has been performed on commercial 48 Ah primary prismatic zinc (Zn)–Air battery cells with full air supply as well as with shut-off air supply. Compared to other battery technologies, e.g., lithium-ion batteries, metal–air batteries offer the possibility to physically stop the battery operation by stopping its air supply, thus offering an additional protection against severe battery damage in the case of, e.g., an accidental short circuit. This method may also reduce the electrical hazard in a larger battery system since, by stopping the air supply, the voltage can be brought to zero while maintaining the energy capacity of the battery. Measurements of overdischarge currents and current cut-off by suffocation have been performed to assess the safety of this type of Zn–air battery. The time to get to zero battery voltage is shown to mainly be determined by the volume of air trapped in the cell.

Published
2017

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