US automakers are finding more ways to boost lithium output to cut their dependence on China

Reuters

Miners are pushing to sharply boost lithium output in the United States, as> automakers in the world's third biggest electric vehicle market are eager to cut their dependence on China for the critical battery ingredient and find more local sources.

A section of the lithium-ion battery pack from a Chevrolet Volt electric vehicle is viewed at a design studio in Troy, Michigan. Reuters

A section of the lithium-ion battery pack from a Chevrolet Volt electric vehicle is viewed at a design studio in Troy, Michigan. Reuters

In North Carolina, Nevada and half a dozen other states, miners are working to revive the US lithium industry, once the world's largest until it fell off in the 1990s.

Global demand for the lightweight material is expected to quadruple by 2025. Miners are betting US expansion will pay off with orders from battery and vehicle manufacturers who are wary of relying too much on China, which is home to the majority of the world's lithium processing facilities and sucks up most output of top producer Australia.

Piedmont Lithium, a small mining company in the early stages of a plan to revive lithium production in North Carolina, was approached in recent months by two large US automakers, Chief Executive Officer Keith Phillips said.

"They are excited about the idea of securing lithium supply outside of China," Phillips said in an interview, declining to name the automakers. Miners are also advancing lithium projects in states including Utah, California and Arkansas.

The United States produced only about 2 percent of the world's lithium last year, from a single mine in Nevada. But it has around 13 percent of the world's identified resources, according to the US Geological Survey. Higher prices could make mining profitable.

In May, the United States counted lithium among 35 critical minerals, which could speed up mine permitting.

"Given its close proximity and the opportunity to diversify the supply chain, we would certainly be interested in US-based lithium sources €" as long as it is sustainable, environmentally friendly, and competitively priced," a spokesman for a major US automaker said in an emailed response to a question. The company declined to be identified.

Albemarle Corp, the world's biggest producer, is in the early stages of assessing re-opening a mine it shuttered in North Carolina 25 years ago, its Chief Strategy Officer Eric Norris said.

In Nevada, 200 miles (320 kilometres) south of Tesla's battery-assembly "Gigafactory", Lithium Americas Corp is developing a nearly 6 million tonne resource, which ranks as one of the world's five largest lithium deposits.

LAC, which is in a partnership with world No. 2 lithium producer SQM on a project in Argentina, is having to develop a new extraction technique for the Nevada deposit as no lithium-from-clay operations exist globally.

It is worth the cost and effort because of the size of the deposit, which has "put the US on the map", said Alexi Zawadzki, president of LAC's North American operations.

The United States was toppled from its decades-long lithium market dominance in the mid-1990s when Chile started extraction from brine pools at lower costs than then US hard rock operations, driving them out of business, said USGS analyst Brian Jaskula.

Most of the lithium found in the United States is contained in hard rock, geothermal and oilfield brines, and clay, which generally have higher extraction costs than South American brines.

While rising prices have improved prospects for development, some of the deposits will require as-yet untested technology for extraction.

This, along with competition for capital, could hamper the US market's development. "I think it is entirely feasible in the next four, five or so years to see one or two of those projects enter production," said Andrew Miller, an analyst at consultancy Benchmark Mineral Intelligence.

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