Solid State Physics

Download Batteries for Portable Devices by Gianfranco Pistoia PDF

By Gianfranco Pistoia

Batteries for moveable units offers a entire evaluation of all batteries utilized in moveable electrical and digital, in addition to clinical units. those variety from the cellphone to transportable CD and cardiac pacemakers to distant micro-sensors. the writer appears to be like on the behaviour of batteries within the stipulations encountered within the above functions. details at the functionality of the latest advertisement batteries are graphically illustrated and comparisons are made. This easy-to-read ebook additionally comprises precious info on issues hardly ever mentioned within the box, comparable to battery assortment, recycling and industry tendencies. * comprises an intensive bibliography* contains hardly mentioned themes, corresponding to battery assortment and recycling* good illustrated and straightforward to learn

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Batteries for Portable Devices

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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.

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. One of them, based on HgO as a cathode, has been abandoned because of the environmental problems posed by mercury.

On the label of primary cells for the consumer marketplace, it is rather common to find the sizes expressed as AAA, AA, etc. 3, these consumer designations are compared with the IEC designations and their average dimensions are given. Normally, the label also contains: 1) a specific code number identifying the producer; 2) the nominal voltage; 3) the cell expiration date (month/year); 4) the IEC designation; 5) safety warnings. Examples of these warnings are: • Do not dispose on fire • Do not recharge • Connect correctly (do not reverse polarity) • Do not dissect • Do not mix with used batteries or other battery types The safety issues will be later dealt with in detail.

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