An electrochemical cell consists of two half-cells

Aug. 9, 2011 - PRLog -- An electrochemical cell consists of two half-cells. Each half-cell consists of an electrode, and an electrolyte. The two half-cells may use the same electrolyte, or they may use different electrolytes. http://www.happybattery.com.au   laptop battery      The chemical reactions in the cell may involve the electrolyte, the electrodes or an external substance (as in fuel cells which may use hydrogen gas as a reactant). In a full electrochemical cell, Toshiba pa3451u-1brs battery species from one half-cell lose electrons (oxidation) to their electrode while species from the other half-cell gain electrons (reduction) from their electrode. A salt bridge (e.g. filter paper soaked in KNO3) is often employed to provide ionic contact between two half-cells with different electrolytes—to prevent the solutions from mixing and causing unwanted side reactions. As electrons flow from one half-cell to the other, a difference in charge is established. If no salt bridge were used,laptop battery this charge difference would prevent further flow of electrons. A salt bridge allows the flow of ions to maintain a balance in charge between the oxidation and reduction vessels while keeping the contents of each separate. Other devices for achieving separation.
http://www.happybattery.com.au/laptop-battery/Toshiba/pa3...   
Toshiba pa3285u-3bas battery

The cell potential can be predicted through the use of electrode potentials (the voltages of each half-cell). (See table of standard electrode potentials). The difference in voltage between electrode potentials gives a prediction for the potential measured.
http://www.happybattery.com.au/laptop-battery/Toshiba/sat...   Toshiba satellite a100 battery
Cell potentials have a possible range of about zero to 6 volts. Cells using water-based electrolytes are usually limited to cell potentials less than about 2.5 volts, because the very powerful oxidizing and reducing agents which would be required to produce a higher cell potential tend to react with the water.

# # #

www.bestlaptopbattery.co.uk specialize in laptop battery and laptop ac adapter. Give your laptop new life with a higher capacity battery. Each model was engineered for maximum run time so you won't miss those important shots.