A battery converts chemical energy into electrical energy and that conversion is the basis of the energy formed to power a device. Inside the durable casing of a battery is an internal system design that includes two electrodes, an electrolyte, plates of reactive chemicals, and a dry cell. Working in concert with each other each of these parts perform a specific function: to create electrical current to power a device. The two electrodes contained within the battery are the anode and the cathode. At the anode oxidation occurs and oxygen is added to the electrode which causes the removal of electrons from the specific chemical compound (e.g. lithium). The cathode is where reduction (gain of electrons) takes place. A Redox reaction is one where electrons are gained from an oxidizing source.
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The electrons run from anode to the cathode and are passed through an electrolyte. The electrolyte is a gel-like polymer film that does not conduct electricity but allows ion exchange. The dry polymer electrolyte design offers simplifications with respect to fabrication, ruggedness, safety, a razor thin-profile geometry, and enhanced conductivity. The electrolyte is held within a dry cell which is a galvanic electrochemical cell containing the pasty electrolyte. As electrons pass through the electrolyte we can measure their volume in amperes (Amps) at a rate of one Amp to every 62,000,000,000,000,000,000 electrons per second. As the electrons flow from the anode to the cathode through the electrolyte the electron flow becomes the current created by your battery to power your device.