Air battery (zinc air battery, Aluminium–air battery)

Fuel cell fuel cell is a device that directly converts Chemical energy into electrical energy. Its positive electrode is an oxygen electrode, and its negative electrode is a fuel electrode such as hydrogen or hydrocarbon or ethanol. The catalyst catalyzes the reduction reaction of oxygen at the positive electrode, conducting electrons from the external circuit to the reaction site of the oxygen electrode; Catalyze the oxidation reaction of fuel at the negative electrode, conducting electrons from the reaction site to the external circuit; The electrolyte transports ions generated by the reaction between the fuel electrode and the oxygen electrode, and prevents the transfer of electrons. Electrons work through external circuits and form an electrical circuit. As long as fuel and oxygen are continuously supplied to the battery from outside the device, discharge products are continuously discharged from the device (hydrogen oxygen fuel cell).

Solar battery

Supercapacitor

flywheel battery

Sodium–sulfur battery. The theoretical specific capacity of Sodium–sulfur battery can reach 760 W? H/kg, has it actually reached 300 W? H/kg, and the charging duration is long, with a long cycle life.