The world is shifting greener.
And while people have always wanted electric cars and inexpensive solar power, the reality is that until recently, battery technology just wasn’t good enough to store energy on an economical or practical basis.
Things have changed, and the green revolution has been kickstarted by battery power. The commercialization of the lithium-ion battery has solved a crucial green energy problem for two major reasons that can be related back to the properties of lithium.
A few Facts About Lithium before we publish the graph:
The lightest known metal can also lighten your mood. Lithium, atomic number 3, is an element of many uses. It’s used in aircraft manufacture and in certain batteries. It’s also used in mental health: Lithium carbonate is a common treatment of bipolar disorder, helping to stabilize the wild mood swings caused by the illness.
Lithium has a flashy discovery story — literally. A Brazilian naturalist and statesman, Jozé Bonifácio de Andralda e Silva, discovered the mineral petalite (LiAISi4O10) on the Swedish isle Utö in the 1790s, according to the Royal Society of Chemistry (RSC). The mineral is white to gray, but when thrown into fire, it flares bright crimson.
In 1817, Swedish chemist Johan August Arfvedson discovered that petalite contained a previously unknown element. He wasn’t able to isolate the metal entirely, but did isolate one of its salts. The name, lithium, is from “lithos,” the Greek for “stone.”
It took until 1855 for someone to isolate lithium: British chemist Augustus Matthiessen and German chemist Robert Bunsen ran a current through lithium chloride in order to separate the element.
Lithium is a special metal in many ways. It’s light and soft — so soft that it can be cut with a kitchen knife and so low in density that it floats on water. It’s also solid at a wide range of temperatures, with one of the lowest melting points of all metals and a high boiling point.
1) Lithium has extremely high electrochemical potential, and so do lithium-ion cells:
|Battery cell||Typical Voltage|
This means one lithium-ion cell can do more – making it much more efficient to use in everything from electronics to energy storage.
2) Lithium is also the lightest metal on the periodic table. Batteries need to be as light as possible, especially in electric cars.
HOW LITHIUM GETS USED
Many years ago, lithium was used chiefly for a variety of industrial purposes. Major sources of lithium demand included ceramics, glass, aluminum production, lubricants, and as a catalyst for rubber production.
In modern times, with the commercialization of the lithium-ion, batteries are now the major source of demand for lithium at 39%.
According to a report by Deutsche Bank, in 2025 the battery market for lithium alone will be more than 2x bigger than the total lithium market today.
About 70% of all lithium will go to electric vehicles, e-bikes, traditional batteries, and energy storage, making it the uncontested fuel of the green revolution.
MAJOR LITHIUM DRIVERS
Lithium-ion battery demand is primarily driven by rapid growth in the electric vehicle market, which is expected to make up 35% of all vehicle demand by 2040.
But renewable energy storage also plays a role in driving lithium demand. With solar and wind energy being installed at a rapid pace, that means more batteries must be procured to store this energy. This can be done for a home system with a product like Tesla’s Powerwall 2.0, and it is being done on a utility scale as well.
TWO TYPES OF LITHIUM
Prices for lithium have skyrocketed in the last two years – and it is worth knowing the two different types of lithium used by the market.
This is the first chemical in the production chain, and as a result, sells for less than lithium hydroxide. It can be used as cathode material in some batteries, such as the Nissan Leaf, where it is used in a LMO with NMC formulation (Lithium manganese oxide / nickel manganese cobalt oxide chemistries)
This is a by-product of lithium carbonate, created by a metathesis reaction with calcium hydroxide. It can be used to produce cathode material more efficiently and is actually necessary for some types of cathodes. It’s used in the Tesla Powerwall and Model S, for example.
There are two basic ways to extract lithium: from brine or from hard rock. The latter mainly consists of spodumene production.
Brine deposits represent about 66% of global lithium resources, and are found mainly in the salt flats of Chile, Argentina, Bolivia, China, and Tibet.
The most famous area for lithium is known as the Lithium Triangle, located on the border between Chile, Argentina, and Bolivia. Salar de Atacama, the world’s third largest salt flat, resides on the Chilean side, and contains about 50% of global reserves.
The largest lithium producers in 2015 were Chile (37%) and Australia (33%). Argentina is the only other double-digit producer at 11%.
LITHIUM IS FUELING THE GREEN REVOLUTION
Here’s the estimated amount of lithium that can be found in everyday items using lithium-ion batteries:
Tesla Model S: 51kg
Electric Vehicles: 10-63kg
Tesla Powerwall 2.0: 10kg
Hybrids: 0.8kg to 2.0kg
Power tool batteries: 40-60g
Mobile phones: 2-3g
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