lithium ion deep cycle power battery for electric cars patent knowledge
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Patent analysis of power lithium-ion battery
This article analyzes Chinese patent applications for power-type lithium-ion battery electrode active materials, mainly including patent application trends in China and the ranking of patent applications in various provinces, autonomous regions and municipalities. 1....
1. Global Patents (1) Industrial R&D is in a period of rapid development In the 1970s, M.S. Whittingham of Exxon used titanium sulfide as the positive electrode material and metallic lithium as the negative...
1. Analysis of patent owners (1) Activity of patentee As can be seen from Figure 1, companies with less than 2 patents account for 57%, companies with 2 to 5 patents account for 33%, and...
As of June 30, 2014, a total of 5,131 Chinese patents for power lithium-ion batteries have been retrieved. In terms of analysis tools, TDA and Incopat of Thomson Reuters and the patent analysis software...
(1) Activity of patentee In Figure 1, each sector represents the sum of the number of patents applied for by each type of enterprise. It can be seen from the figure that the total...
(1) Strength distribution Patent applicants generally first apply for a patent in their home country, and then use the priority to apply for a foreign patent within one year. Therefore, the distribution of the...
1. Technology scale and trend Figure 1 shows the annual distribution of international patents for power lithium-ion batteries. Considering that it generally takes up to 1 year or even 3 years from patent application to...
Foreign patent search and patent legal status search use the Derwent patent database in Thomson Innovation of Thomson Reuters. The main features of the database include: the introduction of the concept of patent family...
At the Copenhagen Climate Conference, China clearly stated that carbon emissions per unit of GDP will be reduced by 40% to 45% in 2020. In 2001, the country launched the largest technology project in...
One of Japan’s achievements in the new energy vehicle industry is its mature hybrid technology. Japan is a world leader in lithium-ion battery research. Japan has become the most advanced country in the research...