What is the current status of lithium battery development?

The first is the consistency of manufacturing. Due to the gap in the manufacturing process and equipment of lithium batteries, the production process of domestic lithium batteries is uneven, and the manufacturing standards are not consistent. Lithium batteries used in electric vehicles are connected in series or in parallel. If the consistency problem is not solved well, the lithium batteries produced cannot be applied to electric vehicles on a large scale.

The second is intellectual property. At present, China has made breakthroughs in the research of lithium iron phosphate batteries. However, because the United States has patents in this respect, although China can independently research and develop in some aspects, it still does not know how to deal with intellectual property issues.

The third is the screening of raw materials. The raw materials used for the production of lithium batteries are not all imported, mainly from the domestic, but the domestic raw materials must pass international certification, and the lithium batteries produced can be internationally recognized. Therefore, there are still some problems in the raw material certification.

Second, the constraints of the development of lithium-ion battery industry

1. The current bottleneck in the development of lithium-ion batteries is its safety performance and management system for automotive power batteries: safety performance, because lithium-ion power batteries have high energy density, high operating temperature, and harsh working environment, plus people-oriented The safety concept, therefore, the user puts very high demands on the safety of the battery. In the management system of the automobile power battery, since the working voltage of the automobile power battery is 12V or 24V, and the operating voltage of the single power lithium ion battery is 3.7V, it is necessary to increase the voltage by connecting a plurality of batteries in series, but it is difficult to implement the battery. Fully uniform charge and discharge, thus causing a single battery in a series of battery packs to be charged and discharged unbalanced, the battery will be undercharged and over-discharged, and this situation will lead to a sharp deterioration of battery performance, and ultimately As a result, the entire battery is not working properly or even discarded, which greatly affects the service life and reliability of the battery.

2. At present, the diaphragm used in lithium batteries is basically imported. If localization is achieved, the manufacturing cost can be greatly reduced. At present, only a few companies in China have broken through the diaphragm manufacturing technology and started mass production, but they cannot completely replace the imported diaphragm.

3. Expanding the scale of production of lithium batteries, improving the level of automation, and reducing costs. These require a large amount of capital intervention. In addition, a large amount of initial investment in supporting charging station facilities is needed to provide a convenient environment for electric vehicle applications. The facilities are relatively backward, which affects the domestic use of lithium battery powered vehicles.

Third, China should actively develop lithium battery industry

1. The government should vigorously support the development of lithium battery industrialization

Judging from China's national conditions, the proportion of pillar industries with real independent intellectual property rights is very low. On the road of developing the national economy, there is still a lack of strategically owned industries with independent intellectual property rights and core technologies. This has made China's industrialization development still give the impression of “world processing plants”. Accelerating the development of lithium-ion battery industrialization and taking the road of independent intellectual property development is conducive to building a pillar industry for the development of the national economy, thereby improving China's comprehensive competitiveness.

Although the lithium-ion battery industry in China has developed earlier, due to the small scale of the enterprise and the relatively weak capital and technical strength, in the process of development, it is necessary to focus on the support of the governments at all levels. Due to the particularity of the lithium battery industry and the linkage with other industrial industries, especially the link with the electric vehicle industry, it is of great significance to stimulate the growth and rapid growth of our national economy. From this point of view, to create development conditions for the lithium battery industry, support its development and growth, should be included in the important work schedule of governments at all levels and relevant departments, because the lithium battery industry is still in the early stages of development in China, although after six years Time, but not as fast as lithium batteries. That is because the small lithium battery has already cultivated a vast market space before it was put on the market, and it has been bred by the market.

Lithium-powered batteries are subject to the following factors: First, the two quality technologies of the lithium-ion battery itself need to be improved and improved, which is the problem of the cycle life and safety of the power battery; the second is the lithium-power battery Use technical issues; third is market issues. These problems are intertwined, so that the characteristics of the lithium-ion battery determine that each single-cell battery needs to be monitored and managed. The use of technology is immature. When the battery product is just put into use, several safety accidents have occurred, which severely restricts lithium market progress of power batteries. Therefore, the government and relevant departments should consciously and step by step to promote their capital concentration, promote enterprise alliance, support innovation and research and development in quality and technology, or directly inject capital, and solve the industrialization difficulties of lithium-ion batteries as soon as possible. Whether it can develop rapidly in our country is very important. If government officials are afraid of taking risks, they will only let these lithium-powered battery companies face the market competition alone. I am afraid that this weak industry will be unable to withstand the rapid development of the international market and will be wiped out. Then, if this very promising sunrise industry will die, who will become a sinner of history? Although South Korea is small, it has been strongly supported by the nation’s efforts to seize the industry that revitalizes the national economy. During the "10th Five-Year Plan" period in China, the "863" project only invested a small amount of money in the lithium-powered battery project, which can be said to be only intentional support.

As China is still in a relatively low position in the global industrial chain, that is, in the labor-intensive or low value-added processing links, only a small piece can be obtained in the distribution of interests. Therefore, the government proposes to process China's processing industry as soon as possible. Turn to innovative development. If the Chinese government can take strong measures and strategies to support this lithium-ion battery project with independent intellectual property rights, then the success is not only the lithium battery industry itself, but other industries linked by it will drive the whole The national economy has produced considerable growth points. At the end of the twentieth century, American economists put forward the theory and competition model of "winners win all". It is a step ahead of a high-tech industry. Even a small step, it is possible to occupy the majority of the market share. Other competitors are hard to keep up, and the latecomers seem to have no chance to compete and participate. China's lithium-powered battery products have a number of their own intellectual property rights, which is a step ahead of other countries. Faced with the key technical problems of lithium-ion batteries and the technical problems of using intelligent monitoring and management, with the comprehensive technical strength of China's talents, it is not necessarily impossible to solve them. Isn't the Chinese Academy of Sciences Wuhu Branch already solved the intelligent monitoring and management system of the lithium-power battery group? In the face of the insurmountable high-tech enterprises in the field of lithium-ion battery technology and quality, if the government can make an appeal, coordinate and integrate technical personnel or relevant research institutions to jointly tackle the problem, especially on how to improve the service life, conduct in-depth research and discussion. It will greatly support these weak enterprises.

Lithium-powered battery companies have weak technical strength and insufficient innovation capability, which is also an important factor restricting the development of industrialization. If the government cannot give strong support and promotion, it is obviously difficult to achieve industrial scale by relying solely on the decentralized technology development and innovation of various enterprises. The government should also provide enterprises with the conditions to understand and utilize cutting-edge technical information through public services. Increase the ability of companies to use knowledge and information. And through the development of public technology service institutions, the creation of information platform using technical services, in order to facilitate enterprises to improve research and development capabilities, improve the technical quality of battery products. Like South Korea, through the public technology service platform, to serve enterprises, thus building a CDMA industry technology platform, making CDMA a global leader. Because the investment in technology research capital of lithium-powered battery enterprises is insufficient, the government should also invest a certain amount of capital in public technology and major key technology research and development projects, so that lithium-power battery companies can enjoy the results of this public technology development and encourage enterprises. Use these results for secondary innovation to help improve the company's ability to innovate. Once the key quality technical problems of lithium-ion batteries are solved, it will have an important impact on the development of this industry and drive the common progress of related industries.

2. Realizing the industrialization of lithium battery is very important for improving China's comprehensive competitiveness.

The rise in oil prices will increase the inflation rate of oil importing countries and the economic growth rate will fall. A large amount of dependence on imported oil will undoubtedly have a great adverse impact on China's comprehensive economic strength. How to get rid of the dependence on oil, especially the rise in oil prices, is a practical problem for senior government officials and relevant departments. How to use power batteries to save energy and create a new era of electric power is one of the most feasible ways to ensure the safety of petroleum energy. Who owns the lithium battery technology has the soul of the electric car. China's vigorous development of automotive energy diversification strategy, especially the development of lithium battery strategy, is a magic weapon to improve China's comprehensive competitiveness.

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