Power lithium ion battery is the focus of attention whether it is used in cars or energy storage, but the most important application of power lithium ion battery is in cars.
I will introduce the development trend of power lithium ion battery industry from three aspects.
First, the development background of power lithium ion battery.
At present, from the international point of view, hybrid electric vehicles have been industrialized, plug-in pure electric is in the promotion stage, fuel powered lithium battery vehicle is in the demonstration stage, but by 2020, plug-in and pure electric will develop rapidly, by 2030 fuel powered lithium battery vehicle will have a significant rise.
At present, China's new energy vehicles have formed a relatively complete research and development and industrial system, and also developed a series of products, these products have been sold on a large scale in the market. Globally, China's sales share of new energy vehicles in the whole market has exceeded 50%.
For the future development trend of new energy vehicles, China has made a good plan. In the "Medium and long-term Development Plan of the Automobile Industry" published in 2017, it is mentioned that by 2020, the production and sales of new energy vehicles in China will reach 2 million, and in 2025, the production and sales of new energy vehicles will account for more than 20% of the entire car production and sales.
In addition, the total number of energy-saving and new energy vehicles should reach 5 million by 2020. Judging from the current development trend, it will not be a big problem to reach these targets.
It is in this context that the research direction and content related to the key part of new energy vehicles -- power lithium ion battery have been well planned at home and abroad.
For example, some important international developed countries, especially the car power in these countries such as Japan, the United States, Germany, Korea, new energy vehicles power of lithium ion batteries made comparatively detailed research and development and research of planning, from materials, battery system integration, standard system, the new system and the content of the next generation of batteries, are made some related research bureau set.
Second, the development status and trend of power lithium ion battery technology.
At present, we have high requirements for batteries, hoping to achieve the degree of competition with fuel cars, such as battery energy density, power density, safety, cycle life, quick charging, temperature range and cost can achieve the expected goals. However, it is difficult to achieve such a goal completely, and only through everyone's efforts, part of the corresponding requirements.
At present, the technology of lithium ion battery is a hot topic of research and development. Safety is still a very important aspect in both materials and battery system integration. However, the energy density, power density, and life and cost control of lithium ion batteries have been greatly improved, and have become the upgrading products of lead-acid batteries, which can be replaced by lead-acid batteries.
Previously, through the support of the country's three five-year plans, power lithium-ion battery technology has been rapidly improved.
In fact, the technology improvement of power lithium ion battery is closely related to the whole strategic orientation of the country. At present, the country takes pure electric drive as an important orientation. From this point of view, lithium ion battery should be developed to the direction of high quality energy, and the whole battery material system should also slowly make some changes.
At present, China has made some arrangements in the field of solid-state batteries, and some universities and scientific research institutions have done a lot of research work and made great progress.
Under the promotion of national subsidy policy, the industrialization of China's power lithium ion battery is making rapid progress. The important subsidy is the energy density of the battery. The energy density of lithium iron phosphate has reached 150 watts per kilogram now, if it achieves such an index, it can get 1.2% subsidy amount. Lithium iron phosphate energy density has been increased through subsidies and will reach 160 or even 170 watt-hours per kilogram by 2018 and 180 watt-hours per kilogram by 2019.
For ternary materials, the energy density is roughly 120-250 watt-hours per kilogram, and 120 watt-hours per kilogram can be used in fast-charging buses; In passenger cars, you need to add or subtract 20 watt-hours per kilogram from 230. By improving energy density, especially with subsidies, it can drive overall battery technology and, indirectly, vehicle technology.
Third, the status quo and trend of power lithium ion battery industry.
At present, the power lithium ion battery is mainly concentrated in the East Asia region, from the global point of view, Japan's technology is relatively leading, China's battery technology progress is also huge, I believe that in the next three or five years, China's battery technology will do the world's first.
At present, according to statistics, the number of companies producing power lithium ion batteries in China has exceeded more than 200, which is the world's largest producer of power lithium ion batteries. In terms of industrial investment, investment in lithium-ion batteries is also booming.
From the present point of view, each unit watt-hour of hardware input, showing a rapid decline in the trend, our country is about three or four cents a watt-hour, if further do the whole output increase, there will be a relatively large decline. From the input of the whole hardware, it is possible to achieve about ten cents per watt. However, at present, the whole investment in China is mainly high investment, and now everyone is based on three or five billion large investment. From the perspective of power lithium ion battery industry chain, China has formed the world's most perfect industry chain, mainly concentrated in the Yangtze River Delta, pearl River Delta and central Plains. For example, taizhou has many companies engaged in the industrialization of power lithium ion battery, which will form a relatively small regional advantage.
Finally, the application of power lithium ion battery is mainly concentrated in four fields.
The first is the A class, which is mainly pure electric minicars; The second is the plug - based B-class car; The third is pure electric based commercial vehicles, if in the field of bus is best to fast charging; The fourth is the 40V hybrid, micro hybrid or weak hybrid vehicle field.
For power lithium ion battery, the most important is the four application fields, we usually see low-speed electric vehicles, power lithium ion battery is a very large application field, China has to do with the scale of millions of cars every year.
In addition, we should pay attention to two aspects of the problem, one is the technical aspect, the other is the industrial level.
At the technical level, we should focus on safety and seek a balance between energy density, power density, safety cycle and cost.
We will use automated equipment to improve the consistency of battery production, and improve the level of battery development and industrialization by improving the design of battery systems.
From the point of view of the country, the battery industry should be standardized to improve the quality output of power lithium ion batteries at the industrial level, and coordinated development should be made from the perspective of the industrial chain. For companies, it is important to consider both subsidies and no subsidies in order to plan and respond to battery technology and industry routes in advance.
Manly Battery which located in Shenzhen,China. A leading Lithium battery manufacturer over 12 years , any project need to evluate ,pls feel free tosend email to info@manlybatteries.com
