Title: Lithium as an investment
Content:  Lithium metal is an extremely soft, highly reactive, and flammable element. It is most frequently found in deposits such as spodumene and pegmatite minerals, with larger resources in the Democratic Republic of Congo, U.S., Canada, Australia, China, Zimbabwe, and Russia. Lithium possesses a unique chemical profile making it the lightest metal in the periodic table and the least dense solid element. Its atomic number is 3 (right behind helium at 2 and hydrogen at 1), and its density is just 0.53 kg/L. This alkali metal is probably best known for its wide use in lithium batteries common in all sorts of electronics devices. Other industrial applications include manufacturing heat-resistant glass and ceramics, high-performance alloys used in aircraft, and lubricating greases. Lithium deuteride is used in staged thermonuclear weapons as a fusion fuel. Compounds of lithium are also used as mood stabilizing drugs in psychiatry. The breakdown of the global end-use lithium markets is estimated as follows: ceramics and glass, 31%; batteries, 23%; lubricating greases, 9%; air treatment, 6%; primary aluminum production, 6%; continuous casting, 4%; rubber and thermoplastics, 4%; pharmaceuticals, 2%; and other uses, 15%.
Title: Lithium battery
Content:   Lithium batteries are primary batteries that have metallic lithium as an anode. These types of batteries are also referred to as lithium-metal batteries. They stand apart from other batteries in their high charge density and high cost per unit. Depending on the design and chemical compounds used, lithium cells can produce voltages from 1.5 V (comparable to a zinc–carbon or alkaline battery) to about 3.7 V. Disposable primary lithium batteries must be distinguished from secondary lithium-ion or a lithium-polymer, which are rechargeable batteries. Lithium is especially useful, because its ions can be arranged to move between the anode and the cathode, using an intercalated lithium compound as the cathode material but without using lithium metal as the anode material. Pure lithium will instantly react with water, 
Title: Lithium iron phosphate battery
Content:  is a natural mineral of the olivine family (triphylite). Arumugam Manthiram and John B. Goodenough first identified the polyanion class of cathode materials for lithium ion batteries. was then identified as a cathode material belonging to the polyanion class for use in batteries in 1996 by Padhi et al. Reversible extraction of lithium from and insertion of lithium into  was demonstrated. Because of its low cost, non-toxicity, the natural abundance of iron, its excellent thermal stability, safety characteristics, electrochemical performance, and specific capacity (170 mA·h/g, or 610 C/g) it has gained considerable market acceptance. The chief barrier to commercialization was its intrinsically low electrical conductivity. This problem was 
Title: Lithium iron phosphate
Content:  Lithium iron phosphate (LFP) is an inorganic compound with the formula. It is a gray, red-grey, brown or black solid that is insoluble in water. The material has attracted attention as a component of lithium iron phosphate batteries, a type of Li-ion battery. This battery chemistry is targeted for use in power tools, electric vehicles, solar energy installations and more recently large grid-scale energy storage. Most lithium batteries (Li-ion) used in consumer electronics products use cathodes made of other lithium compounds, such as lithium cobalt oxide, lithium manganese oxide , and lithium nickel oxide. The anodes are generally made of graphite. Lithium iron phosphate exists naturally in the form of the mineral triphylite, but this material has insufficient purity for use in batteries.
Title: Lithium battery
Content:  even moisture in the air; the lithium in lithium ion batteries is in a less reactive compound. Lithium batteries are widely used in portable consumer electronic devices. The term "lithium battery" refers to a family of different lithium-metal chemistries, comprising many types of cathodes and electrolytes but all with metallic lithium as the anode. The battery requires from 0.15 to 0.3 kg of lithium per kWh. As designed these primary systems use a charged cathode, that being an electro-active material with crystallographic vacancies that are filled gradually during discharge. The most common type of lithium cell used in consumer applications uses metallic lithium as the anode and manganese dioxide as the cathode, with a salt of lithium dissolved in an organic solvent as the electrolyte.
Title: Lithium carbonate
Content:  The main use of lithium carbonate (and lithium hydroxide) is as a precursor to lithium compounds used in lithium-ion batteries. In practice two components of the battery are made with lithium compounds: the cathode and the electrolyte. The electrolyte is a solution of lithium hexafluorophosphate, while the cathode uses one of several lithiated structures, the most popular of which are lithium cobalt oxide and lithium iron phosphate. Lithium carbonate may be converted into lithium hydroxide before conversion to the compounds above.
Title: Calcium battery
Content:  Calcium batteries are considered a next generation battery or post-Li-ion battery energy storage system, namely one of the many candidates that may potentially replace lithium-ion battery technology. It is also a multivalent battery. Key advantages are lower cost, earth abundance (41,500 ppm), higher energy density, by a combination of high capacity and a high cell voltage, and potentially higher power output. Calcium is the 5th most abundant mineral in the Earth's crust, and the most abundant alkaline earth metal, and the third most abundant metal after aluminum (Al) and iron (Fe). The United States is the largest producer (by annual production) of calcium sources (primarily lime), promising domestic supply and manufacture. Other major producers include Russia and China.
Title: Lithium
Content:  Lithium (from λίθος) is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the least dense metal and the least dense solid element. Like all alkali metals, lithium is highly reactive and flammable, and must be stored in vacuum, inert atmosphere or inert liquid such as purified kerosene or mineral oil. When cut, it exhibits a metallic luster, but moist air corrodes it quickly to a dull silvery gray, then black tarnish. It never occurs freely in nature, but only in (usually ionic) compounds, such as pegmatitic minerals, which were once the main source of 
Title: Lithium batteries in China
Content:  Lithium battery products are divided into many categories with the selection in electrolyte material, battery shape, anode/cathode material, covering material, and whether or not it is rechargeable. Different selection of these categories determine different variations of lithium battery products. There is micro competition within the Chinese battery manufacturing companies to achieve the best quality production with the cheapest cost. Recently, there is a growth in using man-made graphite in replacement of graphite ore. In 2020, man-made graphite dominated the material selection for anode and cathode with 84% of market shares. In the upstream of lithium battery production, there is material sourcing from lithium, cobalt, manganese, and nickel mines, along with graphite ore. Upstream also 
Title: Lithium
Content:  being the most commercially viable sources. Another significant mineral of lithium is lepidolite which is now an obsolete name for a series formed by polylithionite and trilithionite. A newer source for lithium is hectorite clay, the only active development of which is through the Western Lithium Corporation in the United States. At 20 mg lithium per kg of Earth's crust, lithium is the 25th most abundant element. According to the Handbook of Lithium and Natural Calcium, "Lithium is a comparatively rare element, although it is found in many rocks and some brines, but always in very low concentrations. There are a fairly large number of both lithium mineral and brine deposits but only comparatively few of them are of actual 

Question: what is the main mineral in lithium batteries?
Answer: Lithium.
lithium.