Selection contrast and analysis of lithium battery electric cars

Source: 2020 - 03 - 24 13:00 hits: times of electric cars, the comparison and selection of lithium-ion batteries electric cars, the comparison and selection of lithium-ion batteries lithium battery mainly has four kinds of raw materials, namely data separator electrolyte and cathode anode data. General in the world according to the different anode data to classify the lithium battery. Example: the war of the lithium manganese acid lithium iron phosphate and the dynamic is commonly lithium cobalt oxide, lithium battery cathode data dynamic lithium battery cathode data is divided into two categories: manganese acid lithium and lithium iron phosphate. Japanese manufacturers is mainly responsible for the production of manganese acid lithium, and has launched many lithium manganese oxide battery. Electric cars such as the nissan leaf, and the manufacturers of the United States and China are keen to lithium iron phosphate, A123 is a leading manufacturer of lithium iron phosphate. Lithium iron phosphate has good performance. As the positive data, the energy density of the lithium iron phosphate is higher than the lithium manganese acid ( LiMn2O4:100mAh / g, 0。 400千瓦时/公斤VS LiFePO4:150mAh / g, 0。 485千瓦时/ g) 。 Among various kinds of positive data, its internal resistance is very small, make the battery service life is long, fewer calories when charging and discharging, high safety. However, in the mature industrial cost, coherence of manganese acid lithium is much better than the lithium iron phosphate. Because electric cars using lithium-ion battery is linked by dozens or even hundreds of battery, so the consistency requirement is very high, this is the hardest to achieve lithium iron phosphate. The positive data competition: powerful, upstream and downstream industry environment is not optimistic Biko is a big company annual incomes of $10 billion. Its main production base in South Korea. In 2010, the company benefited from LG chem and samsung SDI demand growth. The company beyond Nichia Japan as the world's largest lithium-ion battery cathode data provider. Large market share of more than 30%. However, lithium battery positive profit is less than 10% of meico revenue data. Nichia is one of the world's largest producer of led. 2010 years ago, China is the world's largest producer of lithium battery cathode material, the market share of more than 20%. Because of the complexity of the lithium battery cathode material, many manufacturers are involved, especially Japanese manufacturers, salon industrial AGC SEIMI, SEIDO, tanaka chemical research institute, JFE, mining Japan mitsubishi, mitsubishi chemical, sumitomo Osaka cement 0. Japan chemical industry in 01775, the Japanese manufacturers of cathode data accounts for about 50% of the market. Our manufacturer according to dangdang sheng science and technology ( 300073, inventory) , sandstones, ruixiang &gold company and citic guoan ( Article 000839, inventory) Meng Guoli 017175 commanding, science and technology, market share of 11%. It is important to note that the electric car maker byd ( 002594). Strand purchased from tianjin lithium iron phosphate. Manufacturing cathode material of lithium ion battery manufacturer is usually a Japanese company. Variety, how to choose now, almost all the major car manufacturers choose high manganese acid lithium doneness. Even the best A123 also was awarded the lithium manganese acid lithium iron phosphate factory LG chem. Manufacturer of car manufacturers don't test the lithium iron phosphate. Under the current recall frequently, car makers are very cautious. But, despite using lithium manganate battery, the technology is only five years old. Today's lithium-ion battery products can be said to be 'everything'. Various data separator and electrolyte is endless, manufacturers are choosing specific lithium battery. At this point, it is necessary to undertake choosing according to bid for the actual ratio of battery. For battery manufacturers, is the key to improve the safety of the consistency and for battery capacity. Being restricted in the raw material market today and battery market under the condition of strong, price expansion cannot survive today