The duration of a drone has long been criticized, with current technology generally lasting less than 30 minutes. So which of these materials can better solve the problem of drone endurance?
Hydrogen fuel cell
Hydrogen fuel cells use the chemical element hydrogen to make batteries for storing energy. The basic principle is the reverse reaction of electrolysis water, which supplies hydrogen and oxygen to the cathode and anode respectively. Hydrogen changes into hydrogen ions (protons) at the anode and transfers them to the cathode through the electrolyte. At the same time, it releases electrons to the cathode through the external load, and reacts with oxygen to generate water.
Fuel cells have long been known for their high energy density, and hydrogen fuel cells have been used in drones. Events such as "the time of flight broke records and the hand was crying" have been reported.
Hydrogen is notoriously efficient, often generating between 32% and 70% of its electricity, and offers far more range than lithium-ion batteries. However, high development cost, low reliability and durability and high cost of hydrogen supply system are the main factors impeding the development of hydrogen fuel cells.
Solar power is also favored by the best aerial drone
industry, and the news that "power sunshine" USES solar power as a power to fly around the world has cheered the aviation industry.
Solar powered aircraft have been tried since the 1980s, and a number of manned and unmanned aircraft have made significant inroads in the aviation industry.
Some of the above schemes are still in the theoretical stage, some are in the process of industrialization, and some have already been put into use. Technology matures, and from the lab to the market, drones have a much broader future to explore.