Lithium-ion batteries usually come in two shapes: cylindrical and square. Inside the cell is a spiral wound structure with a very fine and highly permeable polyethylene film insulation material spaced between the positive and negative electrodes. The positive electrode includes a current collector electrode composed of lithium cobalt acid (or lithium nickel cobalt manganese acid, lithium manganese acid, lithium ferrous phosphate, etc.) and aluminum foil. The negative electrode consists of a current collector composed of graphitized carbon material and copper foil. The battery is filled with an organic electrolyte solution. Also equipped with safety relief valves and PTC element cylindrical use (part), so that the battery in the abnormal state and the output short circuit protect cells from damage, single section of lithium battery voltage of 3.7 V (3.2 V lithium iron phosphate anode), battery capacity is not likely to infinite, therefore, will be a single section often lithium batteries in series, in parallel processing, To meet the requirements of different occasions.
http://http://admin.globaldatapal.com/AdminArticle/AddArticle