Why are the development prospects of lithium batteries promising?

The development conditions of lithium batteries are promising. The upstream of lithium batteries is the mineral resources required for lithium battery data, while the midstream is the lithium battery manufacturer, including positive data, negative data, electrolyte, barrier, conductive agent, binder processing, etc. . Lithium batteries are used in important downstream facilities, which are widely used in consumer electronics, electric vehicles and industrial energy storage fields. In the next ten years, lithium batteries will become the mainstream of electric vehicle batteries. During the entire development process, power lithium-ion batteries have experienced the era of lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lithium batteries and fuel power batteries. At present, lead-acid batteries account for more than 80% of the secondary battery market. Secondary batteries are mainly used in electric vehicle stores and energy storage stores, and nickel-cadmium batteries are mainly used in power tools. However, both lead-acid batteries and nickel-cadmium batteries contain heavy metal elements, which are easy to cause pollution, so implementation is limited. Ni-MH batteries are mainly used in hybrid electric vehicles (hev), but their performance is not up to the standard and the current promotion of pure electric vehicles (evs) and plug-in hybrid electric vehicles (plug-in hybrid electric vehicles), which requires one The range is more than 200 kilometers, 10 times the range of Ni-MH battery supply. Although fuel-powered batteries perform well, they are also tricky. With its superior performance and mature technology, lithium batteries will become the first choice for electric vehicle batteries in the next ten years. 1) Higher energy-to-mass ratio and energy-to-volume ratio. It can now reach 100-125wh/kg and 240-300wh/L, which is twice that of nickel-cadmium batteries and 1.5 times that of nickel-hydrogen batteries; 2) High voltage. The voltage of a single lithium battery is 3.6v-3.9v, which is equivalent to the series voltage of three nickel-cadmium or nickel-hydrogen rechargeable batteries. 3) The self-discharge is small and can be stored for a long time. After a month of storage, the self-discharge rate of a fully charged lithium battery is about 10%, which is much lower than the 25-30% of nickel-cadmium batteries and 30-35% of nickel-hydrogen batteries. This is the most prominent advantage of lithium batteries. 4) No recall effect. Lithium batteries do not have the so-called memory effect of nickel-cadmium batteries, so do not discharge lithium batteries before charging; 5) Long life. Under normal working conditions, the lithium battery can reach more than 500 charge-discharge cycles; 6) Fast charging speed. Generally, 0.5-1 times the current capacity can be selected to shorten the charging time to 1-2 hours; 7) Can be used in parallel; 8) Since the battery does not contain heavy metal elements such as cadmium, lead, mercury, etc., it is non-polluting to the environment and is the most modern Advanced green battery. The explosive rise of electric vehicles has promoted the development of the lithium battery industry. Take Tesla electric vehicles as an example. In 2013, the global sales of Tesla models were 22,300, of which 30% of users chose 60kWh batteries, and 70% of entry-level users were equipped with 80kWh batteries. In 2013, Tesla's total calculated cost reached 1.65 million kilowatts. Timely lithium batteries, cost calculations, Tesla's 2013 annual number of lithium batteries reached 1.65 million kilowatt-hours, far exceeding the demand for lithium batteries for other electric vehicles. With the rapid development of electric vehicles, if the transportation policy for models exceeding 35,000 units is completed in 2014, and Tesla's third-generation ModelX, Tesla's demand for lithium batteries has exceeded 2.59 million kilowatt-hours, and lithium batteries The industry will achieve an explosive rise. The demand for lithium batteries in the field of non-electric vehicles is still extensive. In addition to the development of lithium batteries in the field of electric vehicles, lithium batteries are also used in the consumer electronics and energy storage market, which has a broad demand space. In 2013, the global demand for lithium batteries was 46.5 billion Wh, an increase of 21% from the 38.2 billion Wh in 2012. During this period, the total demand for lithium batteries in my country's shopping malls exceeded 11.1 billion Wh in 2013, an increase of more than 66% from the 6.6 billion Wh in 2012. Consumer electronics stores have steadily increasing demand for lithium batteries. Lithium batteries are mainly used in mobile phones, personal computers, tablet computers, digital cameras, mobile power supplies, and e-cigarettes. In recent years, with the continuous upgrading of smart phones and the decline in prices, the proportion of mobile phones in the world has increased, and the demand for lithium has also increased. Statement: Some pictures and content of articles published on this site are from Internet, please contact to delete if there is any infringement