Battery Batch » cell

The inside of battery AA

admin — Sat, 24 May 2008 01:58:06 +0000

The inside of battery like alkaline batteries, no matter the advertised claims, are little more than an enhancement of 19th Century carbon-zinc technology. The biggest change in chemistry is an alteration to the chemical mix in the electrolyte that makes it more alkaline (what did you expect?). This change helps to increase storage density and shelf life of the cells.

The construction (as opposed to chemistry) of alkaline cells differs significantly from ordinary carbon-zinc cells, however. Alkaline cells are effectively turned inside-out. The shell of the alkaline battery is nothing more than that–a protective shell–and it does not play a part in the overall chemical reaction. The anode of the cell is a gelled mixture of powered zinc combined with the electrolyte (itself a mixture of potassium hydroxide–a strong alkaline-and water), and the combination is linked to the negative terminal of the cell by a brass spike running up the middle of the cell. The cathode, a mixture of carbon and manganese dioxide, surrounds the anode and electrolyte, separated by a layer of non-woven fabric such as polyester. The figure below illustrates the construction of a Duracell alkaline battery.

diagram of wet cell battery

admin — Thu, 22 May 2008 15:30:13 +0000

A wet cell is a galvanic electrochemical cell with a liquid electrolyte. Below you will find a diagram of wet cell battery. A dry cell, on the other hand, is a cell with a pasty electrolyte. Wet cells were a precursor to dry cells and are commonly used as a learning tool for electro chemistry. It is often built with common laboratory supplies, like beakers, for demonstrations of how electrochemical cells work. A particular type of wet cell known as a concentration cell is important in understanding corrosion. Wet cells may be primary cells (non-rechargeable) or secondary cells (rechargeable).

Have Motorola v 220 Cell Battery?

admin — Mon, 28 Apr 2008 15:21:12 +0000

Marrying affordability with high-quality technology, the motorola v 220 cell battery is the ideal mobile companion for savvy professionals and is sure to make the most of on-the-go time. The sleek model V220 is designed to capture life’s little moments with its integrated VGA camera and advanced photo messaging – its brilliant color display completes the package. Delivering global capabilities, along with downloadable games and MP3 ring tones, the Motorola V220 is your must have communications tool.