A few years ago, there was a saying in the industry that Tesla might use a metal-air and lithium-ion battery to ensure a longer range of electric vehicles and faster charging times in the future. Hybrid system. There is no doubt that this statement is also supported. The company is committed to the development of related power systems and has applied for several patents in related technical fields. However, at that time, in 2010, Tesla was still immersed in the complicated research and development of Model S.
According to the existing work plan, the development of lithium-ion batteries and air metal batteries is not on Tesla's roadmap. But recently, Tesla has just been awarded a patent for a new battery technology.
Like lithium-ion batteries, metal-air batteries use a metal material as the positive electrode, but use oxygen extracted from the environment as the negative electrode. In this case, the battery is lighter in weight, enabling the battery to achieve greater energy density. And put it on the electric car, which means farther cruising range.
It is understood that Tesla has previously applied for a patent for a hybrid system. As a zero-emission mileage increase program, the system can use either a lithium-ion battery pack or a metal-air battery pack. At present, there are still a number of companies that are working on similar technologies, but have failed to achieve substantial applications in the field of electric vehicles.
On January 31, Tesla won another patent in the field of technology - the charging technology of metal air batteries. The patent application file states: "This is a method of charging a metal air battery to the greatest extent possible. Moreover, it can also make the ambient oxygen concentration lower than the preset concentration, so that oxygen can be generated during the charging process. Minimize risk."
According to reports, Tesla first applied for a patent on metal-air batteries in 2010. In 2013, when Tesla began to obtain some patents for the technology, Tesla carried out some corrections to the charging technology. And two weeks ago, Tesla finally obtained a patent for metal air battery charging technology.
Tesla co-founder and chief technology officer JB Straubel is listed as one of the main inventors of the new patented technology. In addition, since 2013, Tesla has opened all its patents to the outside world. As long as the goal is to manufacture electric vehicles, other companies can use Tesla's patents. Of course, Tesla is still applying for a patent, but the frequency is not as high as it used to be. Moreover, Tesla applied for a patent for the purpose of protecting itself, preventing other companies that are studying the same technology from shielding their technology.
It is worth noting that although Tesla has obtained a new patent for metal-air batteries, this does not mean that Tesla can immediately apply the technology to mass-produced models. Before the metal air battery was actually applied to electric vehicles, this battery technology also urgently needed to solve several problems, especially the life cycle and cost. In the patent document, Tesla believes that the new charging technology will solve some of the problems in battery life, such as controlling the supply of air during the charging process to extend battery life.
However, for the future of metal-air battery technology, the outside world has not yet reached an agreement. It is possible that the technology will make breakthrough progress, and the patent will be of great benefit; but it is also possible that the energy density of the lithium-ion battery will also increase significantly, thereby eliminating the metal-air battery.
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Although the word flange generally refers to the actual raised rim or lip of a fitting, many flanged plumbing fittings are themselves known as 'flanges':
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