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1983: Michael M. Thackeray, Peter Bruce, William David, and John B. Goodenough developed manganese spinel, Mn 2 O 4, as a charged cathode material for lithium-ion batteries. It has two flat plateaus on discharge, with lithium one at 4 V, stoichiometry LiMn 2 O 4, and one at 3 V with a final stoichiometry of Li 2 Mn 2 O 4. [39]
Lithium-ion battery Curve of price and capacity of lithium-ion batteries over time; the price of these batteries declined by 97% in three decades. Lithium is the alkali metal with lowest density and with the greatest electrochemical potential and energy-to-weight ratio.
At 20 mg lithium per kg of Earth's crust, [53] lithium is the 31st most abundant element. [54] 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 ...
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Lithium is widely distributed in the lithosphere and mantle as a trace element in silicate minerals. [1] Lithium concentrations are highest in the upper continental and oceanic crusts. Chemical weathering at Earth’s surface dissolves lithium in primary minerals and releases it to rivers and ground waters.
For a timeline of events prior to 1501, see 15th century § Events; For a timeline of events from 1501 to 1600, see 16th century § Significant events; For a timeline of events from 1601 to 1700, see Timeline of the 17th century
An image from John Dalton's A New System of Chemical Philosophy, the first modern explanation of atomic theory.. This timeline of chemistry lists important works, discoveries, ideas, inventions, and experiments that significantly changed humanity's understanding of the modern science known as chemistry, defined as the scientific study of the composition of matter and of its interactions.
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