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2023

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07

How can new energy batteries be guaranteed?

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【概要描述】In January of this year, the Ministry of Industry and Information Technology and other departments jointly issued the "Guiding Opinions on Promoting the Development of the Energy Electronics Industry". The Guiding Opinions define the connotation of the energy electronics industry from the perspective of national development strategy, clarify development goals and tasks, and become a milestone in the development of the energy electronics industry.

In January of this year, the Ministry of Industry and Information Technology and other departments jointly issued the "Guiding Opinions on Promoting the Development of the Energy Electronics Industry". The Guiding Opinions define the connotation of the energy electronics industry from the perspective of national development strategy, clarify development goals and tasks, and become a milestone in the development of the energy electronics industry.

Ying Guangwei, Chairman of the Low Carbon Energy and Intelligent Power Committee of the China Electric Power Development Promotion Association, believes that the "Guiding Opinions" propose to "develop economic new energy storage batteries", carry out actions to enhance the supply capacity of new energy storage products and technologies, and play the role of new energy storage products as the ballast of new energy source systems.

How to ensure the safety of electrochemical energy storage power plants? Sun Jinhua, an academician of the European Academy of Sciences and a professor at the University of Science and Technology of China, believes that the three lines of defense for electrochemical energy storage power stations should be firmly established: the first is that the battery should achieve its proper function. The second is the process, which may be very difficult or require sacrificing other performance. It is necessary to detect and handle potential faults as soon as possible, and to predict and warn the battery of thermal runaway. The third is firefighting, which requires a fire extinguishing agent that can extinguish live flames and prevent reignition.

Yang Linlin, General Manager and Chief Engineer of Shanghai Electric Energy Storage Technology Co., Ltd., believes that the three important levels are still the main body, and the back-end measures are compensatory measures. After the power system has the necessary elements, it is necessary to see whether the functionality and economy of various energy storage technology routes can have commercial value. This is the judgment logic for the energy storage field to become the mainstream of marketization in the future.

Liu Baosheng believes that in order to maintain the advantageous position of China's lithium battery industry, the most important thing is to strengthen technological innovation, especially in terms of original innovation, and truly form one's own core competitiveness. For a long time in the future, it is still necessary to strengthen the basic research and development of key materials for lithium batteries, solve problems such as battery life, charging and discharging time, and cost. At the same time, we will continue to promote the intelligent, digital, and low-carbon transformation of battery manufacturing, improve production efficiency, reduce costs, improve battery product quality, and meet applications in different fields and consumption levels.

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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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