Batteries for Portable Devices by Gianfranco Pistoia

By Gianfranco Pistoia

Batteries for transportable units offers a accomplished evaluation of all batteries utilized in moveable electrical and digital, in addition to scientific units. those variety from the cellphone to transportable CD and cardiac pacemakers to distant micro-sensors. the writer seems to be on the behaviour of batteries within the stipulations encountered within the above purposes. details at the functionality of the newest advertisement batteries are graphically illustrated and comparisons are made. This easy-to-read e-book additionally includes beneficial info on issues hardly mentioned within the box, comparable to battery assortment, recycling and industry developments. * comprises an intensive bibliography* contains not often mentioned issues, similar to battery assortment and recycling* good illustrated and straightforward to learn

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Extra resources for Batteries for Portable Devices

Example text

Discharge curves of D-size Leclanche and ZnCl2 cells on a simulated cassette application. 9 ohms, lh/day at 20°C. GP, general purpose; HD, heavy duty; EHD, extra heavy duty. (From Ref. 1, left). In summary, the characteristics of the two types of cells can be listed as follows [14]. Leclanche cell: • Less expensive than alkaline or zinc chloride. Economical in terms of cost per hour of use on light current drains • The widest variety of shapes, sizes, and capacities within the primary battery system.

5 25 81 15 7 1. Continuous use; 2. g. Zn and MnO2, the notation with a slash will be used: Zn/MnO2. g. zinc carbon, the notation with a dash will be used: Zn-C. 1. 3). They represent 80% of the total number of batteries sold. Their advantages are: no maintenance, availability in a large number of sizes, good shelf-life, high safety level, reliability and (for some types) low cost. Up to the 1940s, the Zn-C system was the only one used for primary batteries. Since then, several other systems have been commercialized.

In summary, the characteristics of the two types of cells can be listed as follows [14]. Leclanche cell: • Less expensive than alkaline or zinc chloride. Economical in terms of cost per hour of use on light current drains • The widest variety of shapes, sizes, and capacities within the primary battery system. 5 volt to 510 volts • Energy density of approximately 60-120 watt hours per liter • Average service maintenance exceeds 90% after one year storage at 21°C on typical tests • Lower specific energy than alkaline • Sloping discharge curve • Output capacity decreases as the drain rate increases • Performance reduced at low temperatures • Sensitive to changes in the discharge rate and/or use frequency Zinc Chloride cell: • Less expensive than alkaline.

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