What is the difference between a fuel cell and an ordinary battery?
Ordinary battery no other auxiliary equipment, after the technical performance is determined, whether it is fully charged or finished discharge, the battery quality and volume of the same.
The quality and volume of the fuel cell body is not large, but the fuel cell requires a fuel storage or fuel conversion device and ancillary equipment in order to obtain hydrogen, and these fuel storage devices or fuel conversion devices and ancillary equipment, the quality and size far More than the fuel cell itself, in the course of the work, the fuel will gradually consume with the fuel cell power generation, the quality gradually reduced (referring to vehicle limited fuel).
Once the technical performance of the fuel cell is determined, the energy that it can produce is only related to the supply of fuel, and as long as the fuel can be supplied with electricity, the discharge characteristics are continuous. Ordinary battery technical performance is determined, only in its rated range of output power, and must be repeated after the charge may be reused, the discharge characteristics are intermittent.
A fuel cell is an energy conversion device that must have energy (fuel) input at work to produce electricity. Ordinary battery is an energy storage device, you must first store the power to the battery, the work can only output power, do not need to enter the input energy, does not produce electricity, which is the essence of fuel cells and ordinary battery difference.
Fuel cell is the chemical energy into electricity, ordinary battery is also the chemical energy into electrical energy, which is common to them, but the fuel cell in the production of electricity, to participate in the reaction of the reaction of the material after the reaction, continue to consume no longer It is required to continuously input the reaction substance. Ordinary battery active substances with the battery charge and discharge changes, the active material repeated reversible chemical changes, active substances are not consumed, only need to add some electrolyte and other substances.
