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Battery-the joys and worries of China's battery kingdom
Since joining the WTO, with the pull of related national industries and the increase in investment by world battery manufacturers in China, my country's lead-acid battery industry has developed rapidly, with an annual growth rate of more than 30%. At the same time, with the increase in world market demand, China has become the world's largest exporter of lead-acid batteries.
After more than 20 years of development, my country’s lead-acid battery technology is not significantly different from the world level, and automobile batteries are in the world’s advanced Level, power and battery technology of electric bicycles are close to the world's advanced level. Among them, the technological progress of maintenance-free sealed batteries has made great achievements, making lead-acid batteries not only widely used in traditional fields such as transportation, military, and national defense. It is widely used in solar photovoltaic power generation, wind power generation, communication power supply, power distribution system, railway, ship communication, lighting power supply, UPS power supply and other fields. Technological progress has promoted the rapid development of the lead-acid battery industry, making it one of the emerging sunrise industries. However, due to the sharp increase in the price of lead, the main raw material of lead-acid batteries, and the continued high-priced operation of lead-acid batteries, the profit of the lead-acid battery industry has shown a downward trend.
In recent years, with the introduction of foreign advanced technology and independent innovation by my country's lead-acid battery enterprises, the production methods and processes of lead-acid batteries have been continuously improved, and the production level has been continuously improved. The battery specific energy, cycle life, performance consistency, use safety and environmental protection continue to improve. With the development of electric bicycle batteries and other power sources, high-temperature curing technology has been rapidly developed. The industry generally believes that high-temperature curing can increase the service life of the battery. In recent years, a large number of parameters have been accumulated and certain experience has been obtained. However, domestic companies are still in the research stage for other advanced technologies, such as wound batteries, bipolar plates, and thin plates, and have not yet formed mass production.
In recent years, the overall technological development direction of my country's lead-acid battery industry is the improvement of battery structure and the development of battery types. Foreign technologies mainly include thin-plate bipolar lead batteries, modular sealed batteries and gel electrolyte lead batteries. Therefore, there is still a certain gap between my country's patented technology and foreign countries. Contact: 18038382979
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