Комплексная безопасность 2011
Комплексное использование вторичных ресурсов
Экология большого города
10_Чистая вода
Charging device for mobile phones
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Description

Charging device based on air-aluminium fuel cells is intended for a charge of mobile phones or/and can be used for electric power supply other communications facilities with supply voltage 4.2–4.6 V. Charging device can be produced as single use and multiple use modes. The power of charging device is about 2 W. Charging device consists of the air-aluminium battery with salt solution as electrolyte, pouring and storage electrolyte compartment and connecting cable with connector set for different mobile phones. Charging device can be used as under room and field conditions which have been not protected from atmospheric condensation. The activation of charging device is carried out by pouring of electrolyte and replacement of anodes for multiple use design or baffle destruction between electrolyte storage compartment and air-aluminium battery for single use design. Time of battery start/recharge is 1–2 minutes. The core fixed under the battery bottom is applied to charging device for baffle destruction. The charging device bends for 5–10 seconds for alignment of electrolyte level in the battery elements. The sequence of battery charge actions is shown by drawings represented on a wall of charging device.

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The electrochemical capacity of battery in single use mode is 1.3 А·h that allows to charge 1–2 mobile phones. The electrochemical capacity of battery in multiple use mode is 15 А·h that allows to make to 10 changes of electrolyte with one full set of anodes, i.е. to make to 20 charges of mobile phones. After exhaustion of anode resource (full dissolution) anodes replacement by the new complete set is made. The battery life time is 10 000 hours in mode of energy generating and is more than 20 years in storage mode without electrolyte. An estimated cost of charging device is 20 ruble per piece.

Developer

Joint Institute for High Temperatures of Russian Academy of Sciences (JIHT RAS)