Lithium battery lithium resources are also non-renewable resources. Lithium resources in 2002 were 1.1 million tons, with data remaining at 750,000 tons in 2013 and 500,000 tons in 2017. Charging Bao area every year to consume about 50,000 tons of lithium resources, just power bank in this area.
Data show that we have about 1.7 per capita power bank, 1.2 billion smartphone users, 1.7 per capita power bank is a huge waste of resources, these resources are not effectively utilized.
With the rapid expansion of global power battery capacity, the demand for related resources is also rapidly increasing. The strong market demand has led to varying degrees of mineral battery resources related to power batteries, especially lithium carbonate. Up to now prices have more than 2.5 times, continue to squeeze the profits of downstream manufacturers. People even began to worry that Chile, as a big lithium resource, would not become the next Middle East? Will the big powers compete for the lithium resources like the competition for petroleum resources?
The world's current reserves of lithium 14Mt, the current annual demand of 32.5kt, by 2050, Li's demand for 3-35Mt, which means that by 2030 the supply and demand of Li resources will begin to become increasingly tense. The figure below shows the distribution of lithium resources in the world. It can be seen that the distribution of lithium resources in the world is very uneven. The resources of Li are mainly in Australia and Chile. Together, the two countries control 75% of lithium resources in the world. Governments of all countries Are trying their best to get rid of the country's dependence on the import of Li resources and vigorously explore the domestic lithium resources available for development.
According to the technical conditions at the present stage, the available Li resources are mainly divided into pegmatite, salt lake brine and sedimentary lithium deposits, of which the pegmatite-type minerals are mainly formed during the cooling of the magma and differentiated and crystallized, During the cooling process of magma, the components rich in Mn, Fe and Mg firstly crystallize out and the rest mainly consist of acidic granite components. With the gradual cooling of the fluid, the precipitated crystal shrinks and breaks in volume in the early stage, Late acidic fluid is filled along these gaps to form pegmatite. Lithium is more soluble in silicates than sodium, potassium, aluminum and other elements. Therefore, lithium begins to enrich in the late stage of magma solidification and crystallizes into ore Due to its wide distribution, pegmatite-like lithium resources account for nearly 50% of the world's lithium reserves. As can be seen from the figure below, this type of lithium ore resources are mainly distributed in Australia. In the early stages of development and application of lithium resources, mainly around the pegmatite and other pegmatite and other minerals, about 85% of recoverable reserves from the 1980s before the solid lithium, with the technical Continuous improvement, salt lake brine lithium gradually become the main source of production.
Salt lake brine lithium deposits are mainly distributed in the closed arid climate zone within the range of 30-40 degrees north latitude and 20-30 degrees south latitude, such as the Andes Plateau in South America, the western United States and the Qinghai-Tibet Plateau in China. The larger reserves in South America include the Uyuni Salt Lake in Bolivia, the Atacama Salt Lake in Chile and the Eton Salt Lake in Unburn, Argentina, which supply 50% of the world's lithium products, of which Chilean Lithium production accounts for about 35% of the world, is a well-deserved king, these salt lake brine Lithium is a closed inland lake hundreds of millions of years of long-term scouring of lithium-rich rocks, the Li dissolved in water, with the evaporation of the lake gradually And formed. Zabuye Salt Lake in Tibet and Chaerhan Salt Lake in Qinghai are all world-famous salt lake brine lithium deposits, of which Zabuye Salt Lake is the world's lowest quality magnesium carbonate salt type salt lake lithium mine, and Chaerhan Salt Lake It is the second largest dry salt lake in the world after the Uyuni salt lake in South America.
Another type of lithium mine is in the form of sedimentary lithium deposits formed mainly by rhyolite and volcanic ash that are eroded by atmospheric precipitation and heat flux from the earth's surface. Lithium is firmly immobilized in the crystals of clay (Na 0.3 [Mg, Li] 3Si 4 O 10 [OH] 2) in this lithium mine. This form of lithium has recently attracted much attention, The McDermitt / Kings Valley, Nevada, discovered the largest sedimentary lithium deposit in the United States with reserves of about 2Mt Li, including the depositional lithium deposits found in Sonora, Mexico and other places that will provide strong demand for future U.S. lithium resources Support.