A brief history of the development of polymer lithium batteries in the RC model

A model that is powered by an electric motor is called an electric model, and the battery used to operate the electric motor is a power lithium-ion battery. The flight performance of the model airplane is very important. Electric model airplanes use a wide range of batteries, such as solar batteries, silver-zinc batteries, lithium batteries, nickel-cadmium batteries, and nickel-metal hydride batteries. Regarding the small output current of solar cells, it is necessary to make a large area to make the electric model fly, and the cost is expensive, so it is rarely used. Silver-zinc batteries have high specific energy and strong discharge capacity for large currents, but the battery life is short, and the price is expensive, easy to leak, easy to fall, so no one cares. Currently, the popular batteries used in model airplanes are nickel series batteries (nickel-metal hydride batteries) and new lithium batteries (polymer lithium batteries). Grignard fpv battery In 1970, electric model airplanes became popular in European and American countries, mainly because nickel-cadmium batteries with powerful repeated charging and discharging had entered the stage of practical use, promotion and batch processing at that time. However, at the beginning of the 21st century, the performance of nickel-hydrogen battery is better than that of nickel-cadmium battery. It has the characteristics of small memory effect and low environmental pollution. Therefore, it has been widely used in model aircraft power supplies and has become one of the mainstream varieties. Lithium batteries were used as disposable batteries in the early days. They did not leak electricity and had high specific energy, but their internal resistance was large, and they could not supply large currents to make electric model airplanes fly. But by the end of the last century, we were able to supply rechargeable lithium batteries, but at that time lithium batteries were more expensive, and the discharge capacity could only make the model fly horizontally. In the early stage, research on lithium batteries was critically used in the military, and later in civilian use, people paid more attention to its development and investment under the huge economic benefits. Therefore, breakthrough progress was made at the end of the 20th century and the beginning of the 21st century. At present, lithium batteries have been used in mobile phones, cameras, notebook computers, etc., replacing nickel-cadmium batteries and nickel-metal hydride batteries. In recent years, the lithium battery used for the RC model plane promotion is still in use. At first, hobbyists tried to use lithium batteries for mobile phones placed on remote-controlled airplanes to make flights, and the flight time was longer than that of nickel-cadmium batteries. Later, it attracted manufacturers from both industries. The polymer lithium battery has been successfully researched. After the lithium battery material and the electrolyte are combined with polymer, the lithium battery has a stronger performance in high current discharge capacity and is more suitable for aviation models. Therefore, the polymer lithium battery has become the RC model aircraft. Mainstream varieties. Based on long-term development, from now on, polymer lithium batteries will power the model aircraft for a long time. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.