Lithium battery market demand and development prospects

Lithium-ion batteries are recognized internationally as ideal chemical energy sources. They have the advantages of small size, large capacitance, and high voltage. They are widely used in mobile phones, laptops and other electronic products. The ever-growing electric vehicle industry will bring lithium-ion batteries. Greater room for development. China and major developed countries in the world have introduced many policies to support new energy vehicles. The development plans of seven strategic emerging industries such as new energy vehicles will further promote China’s electric vehicles from a policy level.

Lithium-ion batteries will show explosive growth Compared with other batteries, lithium-ion batteries have outstanding advantages such as high energy density, long cycle life, low self-discharge rate, no memory effect, and environmental protection. Lithium batteries are new types of green secondary batteries that were successfully developed in the 1990s. They have developed rapidly in the past decade and have occupied the largest market share in the small secondary battery market. They have become the most competitive battery in the field of chemical Power Supply applications. .

Lithium-ion batteries are widely used. With the development of microelectronic technology in the 21st century, miniaturization equipment has been increasing, placing high demands on the power supply. Chemical power has subsequently entered the stage of large-scale application. Lithium-ion batteries are the most ideal rechargeable battery in the world. They are currently used in mobile phones, notebook computers, power tools, and electronic products. In the future, they will be used in electric vehicles, electric bicycles, aerospace, and military mobile applications. In areas such as communications tools and equipment, the demand will increase, and it is expected to show explosive growth in the field of electric vehicles.

Lithium car battery ushered in the period of growth for our country, the car pollution is increasingly serious, exhaust, noise and other environmental damage to the degree that must be controlled and managed, especially in some densely populated, traffic congested large and medium-sized cities have become more serious. In this situation, the demand for new energy vehicles has become increasingly strong. In the future direction of the automotive industry, electric vehicles and hybrid vehicles are becoming a clear trend. The reasons are mainly in two aspects: First, because of the limited energy, fossil fuels are all limited energy sources; Second, people's awareness of environmental protection and the emission requirements of various governments are increasing. Although hybrid vehicles are currently subject to high costs, in the long run, there will be more and more buyers of hybrid vehicles, and production costs will decrease as the scale of production increases. Major countries in the world have successively introduced new energy vehicle support policies to promote the rapid development of new energy vehicles.

As far as China is concerned, the government has successively introduced a number of policies and measures to support the development of the new energy automotive industry. Recently, the “Energy-saving and New Energy Vehicle Development Plan (2011-2020)” formulated by the Ministry of Industry and Information Technology has been initially completed and has now entered the stage of soliciting opinions from related ministries and commissions. After the State Council has passed the review, “Planning” will be Domestic implementation.

In traditional internal combustion engine cars, China has been lagging behind for 20 years abroad. Especially in the high-tech field of passenger car engines, domestic companies have not yet developed their own capabilities. China's chances of catching up with developed countries in internal-combustion vehicles are very small. However, there is only a gap of four to five years in the field of electric vehicles. China has the advantages of cost and market. It has the potential and may form a leading position in the world. New energy vehicles are expected to become an important overtaking route for the Chinese automobile industry and an opportunity for Chinese cars to overtake the curve. With the help of the new energy technology revolution in the automotive industry, the next 10 to 20 years will be a major historical opportunity for China's auto industry to achieve leapfrog development and become a strong brand.

China's energy-saving and new energy vehicle development will be easy, difficult, and two-step: First, from 2011 to 2015, we will vigorously develop energy-saving cars. Second, from 2016 to 2020, the fuel economy of traditional automobiles will be increased to the international advanced level; large-scale popularization of hybrid vehicles.

Related company investment opportunities The main components of lithium-ion batteries include housings, anodes, cathodes, electrolytes, and separators. The battery case is generally made of stainless steel or nickel-plated steel, with different types such as square and cylindrical. The interior of the battery has a roll structure or a laminated structure and is composed of a positive electrode, an electrolyte, a separator, and a negative electrode.

Manganese and ternary systems are the first choice for cathode materials. Difficulties of lithium iron phosphate are mainly concentrated in: product consistency, low temperature performance, high rate discharge, energy density, battery production cost and so on. In addition, the two core technologies of lithium iron phosphate patented carbon deposition, carbon thermal reduction owned by Canada, the United States companies, which is also an obstacle to domestic development. Lithium manganate has a long research time and is the most mature and reliable power battery cathode material at present, and it has no patent restrictions. The ternary material can be regarded as the modification of existing materials, and more attention is paid to the process parameters. From the current selection of mainstream automobile manufacturers in the world, it can be seen that manganese and ternary systems are the first choice for electric vehicles. For cathode materials, we are concerned about manganese and ternary materials related companies, such as CITIC Guoan, Shanshangufen, Dangsheng Technology, which produces lithium manganate; Xiangtan Electrochemistry and Hongxing Development, a manganese dioxide raw material producer for manganese dioxide.

Diaphragm import dependence is higher. As far as the diaphragm is concerned, the domestic high-end diaphragms mainly rely on imports, and the domestic technology level is still low. Follow-up efforts should be made to increase technological research and development. At present, only Fosu Plastics Co., Ltd. produces diaphragms in listed companies, and Yuntianhua and Nanyang Science and Technology each have 15 million square meters per year of diaphragms currently under construction. We recommend focusing on Fosugu, Yuntianhua and Nanyang Technology.

The domestic production of lithium hexafluorophosphate is expected to come. From the aspects of conductivity, thermal stability and oxidation resistance, lithium hexafluorophosphate is the most excellent electrolyte material. At present, the electrolyte of our country is almost entirely imported, and the gross interest rate of lithium hexafluorophosphate is as high as 60%. At present, some domestic companies are also advancing into lithium hexafluorophosphate, and we are more concerned about the prospects for the successful production of lithium hexafluorophosphate, Fluorine, Jiangsu Guotai, and Niu Jiujiu.

Other additives focus on PVDF, NMP, DOP. At present, polyvinylidene fluoride (PVDF) is widely used in the industry as a binder for lithium ion batteries, N-methylpyrrolidone (NMP) as a dispersant, and dioctyl phthalate (DOP) as a plasticizer. We recommend to pay attention to the production company of PVDF, San Aifu; the manufacturer of dispersant NMP raw material γ-butyrolactone, Shanxi Three-Dimension; and the manufacturer of plasticizer DOP Guangdong Haotai.

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