Tag Archives: cobalt for batteries

While United States Hibernated, China Salivated

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When China tightened restrictions on rare-earth exports in October 2025, stunning the United States, it was the latest reminder of Beijing’s control over an industry vital to the world economy. China’s dominance was decades in the making. Since the 1990s, China has used aggressive tactics to build up and maintain its lock over rare-earth minerals, which are essential to making magnets needed for cars, wind turbines, jet fighters and other products. Beijing provided financial support to the country’s leading companies, encouraged them to snap up rare-earth assets abroad, and passed laws preventing foreign companies from buying rare-earth mines in China. It eventually consolidated its domestic industry from hundreds of businesses into a few giant players, giving it further leverage over prices…

In 1995, Chinese state-linked companies received U.S. government approval to buy the rare-earth materials and magnet business started by General Motors, called Magnequench. In the following years, the Chinese ownership shut down all its rare-earth plants in the U.S. and shipped the equipment to China. Top American engineers were offered opportunities to go to China and set up new plants there.  “There were some colleagues that were dead set against it, saying they would never help China learn our technology,” said one magnet expert who ultimately agreed to go to China. “When I arrived, I could not believe what I was seeing. The number of new factories being built, and the rate at which they were being built, was mind-blowing,” he said….  By the mid-2000s, the U.S. rare-earth industry had been all but wiped out. Mountain Pass, America’s major rare-earth mine, had been shut down, as had virtually all American facilities that processed rare earths and turned them into magnets. China produced around 97% of the world’s rare earths, giving it what was effectively a global monopoly…

By 2021, the U.S. government was growing more worried about China’s ability to weaponize rare earths, causing prices to jump. Washington began offering large-scale funding for new rare-earth plants, including a refinery in Texas to be built by Lynas, an Australian rare-earth company. But in 2021, the Association of China Rare Earth Industry issued a warning: to China’s leadership If Beijing wanted to maintain “China’s absolute dominant position,” the country needed to relax state production quotas. Beijing responded in 2022 by pushing up output by 25%, the most in years, with another large increase the following year. Prices tanked, hitting the bottom lines of Western producers and leading some to unload assets…Beijing also introduced new measures preventing the transfer of its rare-earth processing technology abroad.

Excerpt from Jon Emont, How China Took Over the World’s Rare-Earths Industry, WSJ. Oct. 19, 2025

The Environmental Harm Caused by the Energy Transition

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In the electric-vehicle business, the quandary is known as the nickel pickle. To make batteries for EVs, companies need to mine and refine large amounts of nickel. The process of getting the mineral out of the ground and turning it into battery-ready substances, though, is particularly environmentally unfriendly. Reaching the nickel means cutting down swaths of rainforest. Refining it is a carbon-intensive process that involves extreme heat and high pressure, producing waste slurry that’s hard to dispose of. The nickel issue reflects a larger contradiction within the EV industry: Though electric vehicles are designed to be less damaging to the environment in the long term than conventional cars, the process of building them carries substantial environmental harm.

The challenge is playing out across Indonesia’s mineral-rich islands, by far the world’s largest source of nickel. These deposits aren’t deep underground but lie close to the surface, under stretches of overlapping forests. Getting to the nickel is easy and inexpensive, but only after the forests are cleared.  One Indonesian mine, known as Hengjaya, obtained permits five years ago to expand its operations into a forested area nearly three times the size of New York City’s Central Park. The mine’s Australian owner, Nickel Industries, said that rainforest clearing in 2021 caused greenhouse gas emissions equivalent to 56,000 tons of carbon-dioxide. That’s roughly equal to driving 12,000 conventional cars for a year, according to calculations by The Wall Street Journal based on U.S. Environmental Protection Agency data. “Unfortunately, land clearing is required for all open-cast mining processes, including our operations,” said the firm’s sustainability manager…. The negative impact is offset, he said, by nickel’s use in environmentally friendly batteries…Auto executives worried about having enough nickel to meet rapidly growing demand for EVs. They had moved away from cobalt, another battery component, after human-rights groups and journalists reported on widespread child labor in cobalt operations and dangerous conditions faced by miners in the Democratic Republic of Congo. Automakers tweaked their batteries to reduce cobalt by adding more nickel…

The nickel rush has created pressing new environmental concerns. The HPAL process used to process nickel pioneered by Chinese companies involves dousing nickel ore in sulfuric acid and heating it to more than 400 degrees Fahrenheit at enormous pressures. Producing nickel this way is nearly twice as carbon-intensive as mining and processing sulfide nickel found in Canada and Russia. Another way of processing laterite ore that often uses coal-powered furnaces is six times as carbon-intensive, according to the International Energy Agency. Companies also face questions about how to get rid of the processing waste. It is difficult to safely sequester in tropical countries because frequent earthquakes and heavy rains destabilize soil, which can cause waste dams to collapse. A 2018 Indonesian law allowed companies to obtain permits to discard mineral processing waste into the ocean….

China’s domination of Indonesian nickel processing poses risks for Western electric-vehicle companies at a time of fraying relations between Washington and Beijing. Last year, the U.S. government declared nickel a critical mineral whose supply is vulnerable to disruption, with very limited nickel production operations in the U.S.

Excerpts from Jon Emont, EV Makers Confront the ‘Nickel Pickle’, WSJ, June 5, 2023

The Plight of Electric Cars: Cobalt Batteries and Mining

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About 60% of the world’s cobalt is found in Congo, scattered across the copperbelt that stretches east into Zambia. The people of Kawama, Gongo grumble that too much land has been sold to mining firms. “We used to dig freely,” says Gerard Kaumba, a miner. “But now the government has sold all the hills.” There are still some sites where miners can turn up and dig, but they have to sell to whoever owns the concession. A sweltering day’s work might earn you $7. Many people have found they can make more at night, pilfering cobalt from industrial mines.

Glencore, a commodities giant with two mines in Congo, reckons that some 2,000 people sneak into its pits every day. Other companies have even more robbers to contend with. In 2019 Congolese soldiers chased thieves out of a mine owned by China Molybdenum where, it was reckoned, 10,000-odd people were then illegally digging. Sneaking into Glencore’s mines is hardest, says a Kawaman, as its guards do not collude with thieves—and often chase them away with dogs.

Congo’s industrial miners are not all angels.  Gécamines, the state-owned company, has enriched crooked politicians for half a century. Global Witness, a watchdog based in London, says Congo’s treasury lost $750m of mining revenues to graft between 2013 and 2015. ENRC, which has mines in Congo, has faced allegations of corruption and an investigation by Britain’s Serious Fraud Office (it denies wrongdoing). So has Glencore, which has worked with Dan Gertler, an Israeli billionaire. Mr Gertler, a close friend of a former Congolese president, Joseph Kabila, is under American sanctions… 

While big firms rake in millions, many of the little guys languish in jail. The prison in Kolwezi, the largest city in the mining region, is crammed with men caught stealing copper and cobalt. More than a hundred inmates occupy one stinking room, sitting in rows on the ground, each wedged between another’s legs. Prissoners are allowed to use the toilet only once a day, so they often urinate in their clothes

Excerpt from Cobalt blues: In Congo the little guys are jailed for stealing minerals. Economist, Oct. 17, 2020

Congo, China and Battery Minerals

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The demand of cobalt is bound to increase because of the batteries needed to power  electric vehicles (EVs).  Each battery uses about 10kg of cobalt. It is widely known that more than half of the world’s cobalt reserves and production are in one dangerously unstable country, the Democratic Republic of Congo. What is less well known is that four-fifths of the cobalt sulphates and oxides used to make the all-important cathodes for lithium-ion batteries are refined in China. (Much of the other 20% is processed in Finland, but its raw material, too, comes from a mine in Congo, majority-owned by a Chinese firm, China Molybdenum.)

On March 14t, 2018 concerns about China’s grip on Congo’s cobalt production deepened when GEM, a Chinese battery maker, said it would acquire a third of the cobalt shipped by Glencore, the world’s biggest producer of the metal, between 2018 and 2020—equivalent to almost half of the world’s 110,000-tonne production in 2017. This is likely to add momentum to a rally that has pushed the price of cobalt up from an average of $26,500 a tonne in 2016 to above $90,000 a tonne…

South Korean and Japanese tech firms and it’s a big concern of theirs that so much of the world’s cobalt sulphate comes from China. Memories are still fresh of a maritime squabble in 2010, during which China restricted exports of rare-earth metals vital to Japanese tech firms. China produces about 85% of the world’s rare earths.

Few analysts expect the cobalt market to soften soon. Production in Congo is likely to increase in the next few years, but some investment may be deterred by a recent five-fold leap in royalties on cobalt. Investment elsewhere is limited because cobalt is almost always mined alongside copper or nickel. Even at current prices, the quantities needed are not enough to justify production for cobalt alone.

But demand could explode if EVs surge in popularity… the use of cobalt for EVs could jump from 9,000 tonnes in 2017 to 107,000 tonnes in 2026.  The resulting higher prices would eventually unlock new sources of supply. But already non-Chinese battery manufacturers are looking for ways to protect themselves from potential shortages. Their best answer to date is nickel.

The materials most commonly used for cathodes in EV batteries are a combination of nickel, manganese and cobalt known as NMC, and one of nickel, cobalt and aluminium known as NCA. As cobalt has become pricier and scarcer, some battery makers have produced cobalt-lite cathodes by raising the nickel content—to as much as eight times the amount of cobalt. This allows the battery to run longer on a single charge, but makes it harder to manufacture and more prone to burst into flames. The trick is to get the balance right.

Strangely, nickel has not had anything like cobalt’s price rise. Nor do the Chinese appear to covet it… Nickel prices plummeted from $29,000 a tonne in 2011 to below $10,000 a tonne 2017…. But by 2025 McKinsey expects EV-related nickel demand to rise 16-fold to 550,000 tonnes.

In theory, the best way to ensure sufficient supplies of both nickel and cobalt would be for prices to rise enough to make mining them together more profitable. But that would mean more expensive batteries, and thus electric vehicles.

Excerpts from The Scramble for Battery Minerals, Economist, Mar. 24, 2018