What are the applications of lithium batteries in the aerospace field?

Lithium battery processing manufacturers talk about the application of lithium batteries in the aerospace field. At present, the world is undergoing a green revolution in the transportation field. The wave of electrification of new energy vehicles is in the ascendant, and the electrification of the aviation field is also sweeping. Internationally, the application of lithium batteries in the field of space power has entered the engineering application stage. At present, more than a dozen spacecraft have adopted lithium batteries as energy storage power sources. Lithium batteries have many advantages such as high energy density, high safety, long cycle life, high charge and discharge rate, wide operating temperature range, and low environmental pollution. Compared with other batteries, they have strong advantages and will be widely used in the field of electric aviation in the future. . In the field of deep space exploration, due to the long-distance flight of spacecraft, the advantages of high specific energy and low self-discharge of lithium batteries are particularly prominent. In the deep space exploration programs carried out in recent years, lithium batteries have been used as energy storage. power supply. Such as: the SMART-a lunar probe, the Mars Express launched by the European Space Agency (ESA), the Valor and the Opportunity Mars probes launched by NASA. The second phase of my country's lunar exploration also plans to use lithium batteries as the energy storage power source for lunar vehicles and lunar rover. Since the specific energy of the lithium battery is as high as 125wh/kg, which is much higher than the current applied specific energy of the nickel-hydrogen battery 60wh/kg, for a high-orbit satellite with a power of 20kw, the lithium battery pack is used instead of the nickel-hydrogen battery pack. The weight can save more than 300kg. It has been more than 30 years since the emergence of lithium batteries. Many national high-precision projects such as military technology, rail transit, and aerospace use lithium batteries, indicating that the technology of lithium batteries has been very mature and perfect. Lithium battery represents the development direction of spacecraft energy storage equipment and is the third generation of spacecraft energy storage. It has the advantages of light weight, small size, no memory effect, and wide adaptability to temperature. It is an alternative product for the current mainstream applications of nickel-cadmium and nickel-hydrogen batteries. The energy-to-weight ratio of lithium batteries for aerospace is 90～110Wh/kg, which is related to the index of 45～60Wh/kg for nickel-hydrogen batteries and has obvious advantages. As a new type of energy, lithium batteries have begun to enter aerospace power products to gradually replace nickel-cadmium batteries. In order to adapt to the characteristics of lithium batteries, a new set of lithium battery management and control systems is the key to ensuring the normal operation of lithium batteries. At present, the energy storage system of the International Space Station and the extravehicular activity devices of the astronauts all use lithium batteries as energy storage power sources. Regarding manned spaceflight, NASA's priority is safety, how to prevent thermal runaway of lithium batteries and restrain thermal runaway Propagation between storage batteries to ensure the safety of astronauts is a priority for NASA. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the advantages of rack UPS?