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2023

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The Development Prospects of New Energy Vehicle Batteries

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【概要描述】Analysis suggests that in the next few years, Japan will lead the United States, Europe, and other countries in intellectual property competition in the field of new energy vehicles. However, due to the rapid growth of the new energy vehicle industry and the lack of mature solutions for many key technologies, the United States and Europe, relying on their strong basic research advantages, are highly likely to make breakthroughs in certain key technologies and regain competitive advantages. In addition, rising stars in the automotive industry such as South Korea and China are continuously increasing their investment in the research and development of new energy vehicles, which can be expected to make the competitive landscape of new energy vehicles more complex in the future.

Analysis suggests that in the next few years, Japan will lead the United States, Europe, and other countries in intellectual property competition in the field of new energy vehicles. However, due to the rapid growth of the new energy vehicle industry and the lack of mature solutions for many key technologies, the United States and Europe, relying on their strong basic research advantages, are highly likely to make breakthroughs in certain key technologies and regain competitive advantages. In addition, rising stars in the automotive industry such as South Korea and China are continuously increasing their investment in the research and development of new energy vehicles, which can be expected to make the competitive landscape of new energy vehicles more complex in the future.

At present, research on batteries for pure new energy vehicles in Japan mainly focuses on lithium batteries, followed by lead-acid batteries, nickel hydrogen batteries, and sodium batteries. From the total number of patent applications worldwide, Japan has a large number of patent applications related to pure new energy vehicle batteries and their management systems. From the domestic patent application volume in Japan, over 90% of patent applications also come from Japanese applicants. Whether from the perspective of the ownership of world patent applications or the share of Japanese applicants in Japanese patent applications, Japan is a strong player in the field of pure new energy vehicle batteries and their management systems, controlling the vast majority of patented technologies.

As a major automobile production and consumption country in the world, the research on batteries for pure new energy vehicles in the United States mainly focuses on lithium batteries. The number of patents related to lithium batteries accounts for more than 70% of the number of power battery patents, followed by lead-acid batteries, nickel hydrogen batteries, air batteries, and sodium batteries. From the total number of patent applications worldwide, as of June 2010, the United States ranked second in the number of patent applications related to pure new energy vehicle batteries and their management systems after Japan. From the perspective of domestic patent applications in the United States, among patent applications related to pure new energy vehicle batteries and their management systems, there are more patents from Japanese applicants, accounting for nearly 60% of the total, while the number of patent applications from American applicants is second to Japan.

The research on batteries for pure new energy vehicles in Germany mainly focuses on lithium batteries, followed by lead-acid batteries, nickel hydrogen batteries, sodium batteries, and air batteries. From the total number of patent applications worldwide, as of June 2010, Germany ranked 6th in the world in the number of patent applications related to pure new energy vehicle batteries and their management systems, which is significantly different from the number of Japanese patents ranked first, accounting for only 11% of Japan's patent applications. From the perspective of domestic patent applications in Germany, German applicants hold about 43% of the total number of patents, higher than Japan, which ranks second. On a global scale, Germany's technological strength in the field of pure new energy vehicle batteries and management systems is far inferior to that of Japan. However, within its own country, Germany has a strong technological advantage, with a higher patent ownership than Japan.

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Characteristics of New Energy Vehicle Batteries

Lithium batteries are a general term for chemical power sources that use metallic lithium or lithium containing substances as negative electrodes. It is a new type of high specific energy battery system that has been developed in the past decade. The idea of using active metals such as lithium and sodium as negative electrodes for batteries was first proposed by a researcher born in 1958 at the University of California in the United States. In the 1970s, Yasuro Fukuda of Panasonic Electric Company in Japan first invented and applied lithium fluoride carbon batteries. From then on, lithium batteries gradually moved from experimental research to practicality and commercialization. Due to the excellent performance of lithium batteries, various countries are competing to develop various new types of lithium batteries to meet military and consumer needs, such as lithium iodine batteries (1972), lithium chromate batteries (1973), lithium sulfur dioxide batteries (1974), lithium sulfite chloride batteries (1974), lithium copper oxide batteries (1975), lithium manganese dioxide batteries (1976), lithium molybdenum disulfide batteries (1989), lithium-ion batteries (1991), and lithium manganese dioxide batteries (1994). Especially in the early 1990s, the high specific energy and long life lithium-ion batteries invented and launched by Sony Energy Technology in Japan greatly promoted the development of the lithium-ion battery industry.

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