The hottest lithium ion battery heating chemical m

2022-08-07
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Lithium ion battery heats up the chemical materials market frost Sullivan, an American growth consulting company, currently needs more than 100 years for the degradation of ordinary plastic bags. The company published a research report in November, saying that in the future, the electric vehicle market will grow steadily, and the lithium-ion battery technology in hybrid electric vehicles and electric vehicles will replace the nickel hydrogen battery technology. Driven by this, the related chemical materials market will develop rapidly

environmental sustainability has become the development trend of the transportation industry. At present, electric vehicles are widely supported by policies in some countries in Europe, America and Asia. However, the safety of their battery system has become a key factor for the public to accept electric vehicles. The main reason is that the heat generated when the vehicle is running is easy to cause chemical reactions in the battery and lead to explosions. Therefore, the key to the promotion of electric vehicles is to develop superior thermal insulation materials and design the thermal management system of electric vehicles. Due to the high energy density of lithium-ion batteries, it is expected that lithium-ion batteries will replace NiMH batteries in hybrid electric vehicles and electric vehicles in the future. Frost Sullivan predicts that from 2013 to 2015, with the reduction of lithium-ion battery prices and the development of basic industries, the lithium-ion battery market for electric vehicles will develop rapidly

lithium ion battery components for electric vehicles mainly include cathode/anode active materials, laminates, electrolytes, separation layers and adhesives, among which cathode active materials are the key to technological development. It is estimated that the average annual growth rate of the lithium ion battery material market for electric vehicles will reach 125% from 2008 to 2016

as a key component of lithium-ion battery, the separation layer mainly serves to separate the cathode and anode and maintain ion conduction. Therefore, the thin and firm porous separation layer can improve the performance of lithium-ion battery. At present, the materials of the separation layer mainly include ceramics and polymers (including polypropylene, polyethylene, polyvinylidene fluoride, etc.). The production process of the separation layer also includes wet production and dry production (without solvent). The wet production process is common in Asia. It is estimated that the output of lithium ion separation layer will increase at an average annual rate of 129% from 2008 to 2016

at present, the typical electrolyte used in lithium ion batteries is lithium salt LiPF6 dissolved in mixed solvent of ethylene carbonate. LiPF6 is relatively cheap and has good conductivity, but the HF it produces will corrode the battery laminates. Therefore, people have developed alternatives such as lifap and LiBOB. Lithium ion battery electrolyte and additives market mainly includes electrolyte solution, additives and solvents, lithium salt, active acid and lithium carbonate. It is estimated that the market output will increase at an average annual rate of 136% from 2008 to 2016

the anode active material of lithium-ion battery for electric vehicles is mainly graphite. Graphite is divided into natural graphite and synthetic graphite. Natural graphite has crystalline, amorphous and flake shapes; Synthetic graphite has high purity and is mainly refined from coke and asphalt. It is an ideal material for lithium batteries, but it is expensive

graphite as anode material will form lithium needle crystal, which helps to ensure the structural integrity of the battery. However, due to the poor energy storage of graphite, people began to develop non-carbon anode materials. Common non carbon anode materials include silicon, tin and titanate. It is estimated that the output of anode materials for lithium ion batteries will increase at an average annual growth rate of 134% from 2008 to 2016. In 2009 ② the main manufacturers of anode materials for pearlescent lithium-ion batteries were mostly Japanese graphite suppliers. In recent years, European, American and Chinese manufacturers have also increased their R & D efforts in this area, which is expected to be called a new force in the market in the future

cathode active material of lithium ion battery is the key component. Different from anode materials, this is commonly referred to as slipping. Cathode materials currently use a variety of technologies, including lithium cobalt oxide (LCO), lithium nickel cobalt aluminum (NCA), lithium nickel manganese cobalt (NCM), lithium manganese spinel (LMO) and lithium iron phosphate (LFP). Among them, lithium cobalt oxide is widely used, but its safety is low, and it can not be used in electric vehicles in batches. It is estimated that the output of lithium-ion cathode materials for electric vehicles will increase at an average annual growth rate of 134% from 2008 to 2016. At present, the main manufacturers are Nichia in Japan and Umicore in Belgium. Other European and American manufacturers such as BASF and phosphate lithium are also developing rapidly in this regard

the market for other component materials of lithium-ion batteries includes electrode material adhesives, electrode containers and lithium-ion battery packaging laminates. Electrode containers are mainly metal foil, which are mainly provided by Japanese manufacturers; The electrode material adhesive requires high purity, corrosion resistance and strong adhesion. At present, polyvinylidene fluoride is widely used

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