Briefly describe the development trend of lithium ion batteries

Power lithium-ion battery is a kind of high-energy density battery made of lithium-ion battery. It is a lithium battery that is specially used to power vehicles. It is also used in power tools and electric toys. It has the advantages of zero pollution, zero emission, high energy density, small volume and long cycle life. It is the trend of development and application of power batteries at home and abroad.

Downstream of the lithium battery industry chain includes low-end mobile phones, notebook computers, digital cameras, power tools, miner's lamp market, mid-end wind and solar energy storage markets, and high-end electric bicycles, electric motorcycles, electric scooters, electric wheelchairs, electric The car and electric bus market also has great potential in the military andspecial fields, including tanks,specials, rockets, and lunar rover. The downstream of the power lithium battery industry chain is mainly used in electric bicycles, electric motorcycles, electric cars, electric buses and other applications requiring high power.

According to the "2015-2020 China Power Lithium Battery Industry Market Demand Forecast and Investment Strategy Planning Analysis Report" released by the Industrial Research Institute, the two factors are positive for the development of the lithium battery industry: (1) With the rapid development of China's lithium battery downstream demand industry In particular, the rapid growth of consumer electronic products, such as mobile phones, computers, and other digital products, the demand for lithium batteries will continue to grow rapidly in the future; (2) The national lithium battery industry policy supports the development of the lithium battery industry. And from the perspective of industry development, the following trends are presented:

1. The market share of polymer lithium batteries is gradually expanding

At present, there is a gap between the application of mobile phone networks and terminal products. Mobile phones generally have problems of interconnection and battery energy. The polymer lithium battery developed on the basis of the traditional liquid lithium ion battery can just make up for the shortcoming of the traditional liquid lithium ion battery in performance. First of all, due to the flexible packaging of the aluminum-plastic composite film, compared with the conventional lithium battery packaged with a hard shell such as an aluminum shell, it is not easy to explode and has higher safety. Second, polymer lithium batteries are lighter, thinner, and larger. Due to the above advantages, the market share of polymer lithium ion batteries has expanded in recent years and will occupy a larger market share in the next few years.

2. Electric vehicles are the key demand areas for lithium batteries in the future.

Looking at the dynamic analysis of investment in new energy by domestic and international manufacturers, many auto manufacturers and traditional battery manufacturers have turned their attention to the development and production of lithium batteries. With the further improvement of domestic and international lithium battery production technology and technology, lithium batteries will further expand their use in the market with the advantages of light weight, safety and long service life after coordinating the two factors of product quality and price rate.

According to the statistics of the Industrial Research Institute, the output of new energy vehicles was 78,500 units and the sales volume was 74,800 units, an increase of 3.5 times and 3.2 times respectively over the previous year. The production and sales of pure electric vehicles increased by 2.4 times and 2.1 times respectively compared with the previous year; The production and sales of electric hybrid vehicles increased by 8.1 times and 8.8 times respectively over the previous year. According to the 20% penetration rate of the lithium ion battery power battery, the market size of the lithium ion battery is about 15,000 sets. According to the average price of each group of power lithium ion batteries is 50,000 yuan, and the total market is about 748 million Yuan.

3. The industry will gradually shift from the coastal areas to the interior

With the intensification of competition, the trend of the transfer and integration of China's lithium battery industry is becoming more and more obvious. The trend of gradient transfer in labor-intensive links has intensified, and the resource advantages in the central and western regions of the upstream lithium mines are obvious. A large number of lithium battery manufacturers have gathered in the Pearl River Delta region. With the gradual reduction of labor costs in the Mainland, labor-intensive links such as cell assembly will gradually shift from the coast to the interior. From the upstream of the industrial chain, lithium carbonate, an important raw material for lithium batteries, is mainly derived from ore and brine. China's lithium ore is mainly distributed in Sichuan, Jiangxi, Hunan and Henan, and brine is mainly concentrated in Qinghai and Tibet. Midwestern cities such as Jiangxi Yichun, Jiangxi Xinyu, Sichuan Aba, Qinghai and Tibet, which have resource advantages, have begun to increase investment in the lithium battery industry.

The Industrial Research Institute comprehensively analyzes the downstream development of the industry in the future, the impact of relevant national industrial policies, and the historical data of the scale of the lithium battery market, using polynomial fitting to predict the market size of China's lithium batteries in 2015-2020. By 2017, the lithium battery industry market will reach about 230 billion Yuan, and the industry market size will reach 600 billion Yuan in 2020.

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