At present, the study of battery-based pure electric vehicles is mainly concentrated in lithium batteries, followed by lead-acid batteries, nickel-hydrogen batteries, and sodium batteries.
From the total amount of patent applications in the world, the number of patent applications for pure electric vehicles with Japan and its management system has the highest. From Japan's domestic patent application, more than 90% of the patent applications are available from Japanese applicants in 6,782 patent applications related to pure electric vehicles and their management systems. Whether it is from the perspective of the world's patent application, Japan is the strongest in the field of pure electric vehicles and its management system in the field of pure electric vehicles in the field of pure electric vehicles and their management system. patented technology.
At present, the study of the battery of German pure electric vehicle is mainly concentrated in a lithium battery, followed by lead-acid batteries, nickel-hydrogen batteries, sodium batteries, and air batteries.
From the total number of patent applications, as of June 2010, Germany's pure electric vehicle battery and its management system related patent applications ranked 6th in the world, and the number of Japanese patents ranked first Big, only 11% of Japanese application. From the perspective of the patent application in Germany, the Patent of German applicants account for approximately 43%, higher than the second Japan.
Looking globally, Germany has a strong technical strength in the field of pure electric vehicles and its management system, but in their own country, Germany has strong technical advantages, and the battery patent has higher than Japan.
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