Electric Vehicles' Battery Problem

- Lithium can store and release electrical energy through a reversible chemical reaction. The metal naturally tends to lose its outer electron, but this reaction can be controlled and reversed, allowing a properly configured battery to discharge energy, recharge, and discharge again.

- Lithium-ion batteries became commercially viable only a few decades ago but transformed portable electronics. Their combination of relatively high safety and light weight made them the preferred power source for mobile devices and other portable electronics.

- Electric vehicles are creating an unprecedented new source of lithium demand. The narrator describes EVs as the latest major technology boom, attracting enormous interest from Silicon Valley and Wall Street and representing a much larger battery market than portable electronics.

- Replacing the UK's 31.5 million vehicles would require approximately 236,000 metric tons of lithium carbonate. The UK committed to banning sales of internal-combustion cars by 2030. Producing that quantity of lithium carbonate would require every lithium mine in the world to devote its entire output to the UK for approximately nine months.

- Four countries dominate global lithium production. Argentina, Chile, Australia, and China collectively account for approximately 92% of worldwide production, leaving the battery supply chain heavily concentrated geographically.

- Australia's Greenbushes mine is the world's largest hard-rock lithium mine. Located in Western Australia, it was developed because of the area's abundant spodumene, a mineral containing high concentrations of lithium.

- Chinese ownership plays a major role in Australia's lithium processing industry. Raw material from Greenbushes travels approximately two and a half hours north to the Kwinana Lithium Plant near Perth. The facility is majority-owned and operated by Chinese company Tianqi Lithium, which the narrator identifies as responsible for almost half of worldwide lithium production.

- Three companies dominate the battery-manufacturing market. Refined lithium hydroxide and other lithium compounds are sold to battery manufacturers, with approximately three-quarters of the market going to LG Chem, CATL, or Panasonic. This concentration creates an effective industry triopoly.

- Multiple countries have committed to ending sales of internal-combustion passenger vehicles. Besides the UK, the list includes Iceland, Belgium, the Netherlands, Germany, Denmark, Norway, Sweden, Israel, Singapore, and South Korea. Their commitments generally target the following decade.

- The vehicle-ban commitments alone imply a minimum demand of 9.5 million electric vehicles annually. Using the countries' 2019 passenger-vehicle sales figures, the narrator calculates that EV production would have to quintuple to meet this baseline a decade later. Even the most conservative forecasts for 2032 were substantially higher than this figure.

- Lithium prices surged dramatically during 2021. Seaborne lithium prices increased from approximately $8,000 to more than $30,000 per metric ton in twelve months, a rise the narrator describes as approximately 400%.

- Cobalt and nickel prices also experienced major increases. Both are important components of most commercially available lithium-ion batteries. Cobalt prices doubled during 2021, while nickel reached its highest price in a decade.

- The United States has a major mismatch between its electric-vehicle market and domestic lithium production. Despite being one of the world's largest EV markets and home to the world's largest EV manufacturer, the country had only one major operating lithium mine: Silver Peak in Nevada.

- China has moved considerably further in developing its domestic lithium supply. It has expanded domestic production capacity while Chinese companies have established significant positions at other major lithium production sites worldwide. This growing presence has concerned American policymakers.

- Thacker Pass in Nevada represents the United States' biggest opportunity to expand lithium production. It contains the country's largest lithium deposit and could potentially elevate the United States into the ranks of major lithium producers. However, developing the mine has encountered substantial environmental, economic, and political opposition.

- Thacker Pass is an exceptionally remote area of northern Nevada. The nearest store is approximately 30 minutes away, the nearest supermarket an hour away, and the nearest Starbucks three hours away. Its sparse roads primarily serve isolated farms, ranches, and small communities. Silver Peak, the country's existing major lithium mine, is approximately 250 miles south.

- Water scarcity is one of the biggest obstacles to developing Thacker Pass. The area receives less than 10 inches (25 centimetres) of rain annually, yet the proposed mine would require approximately 3,224 gallons (12,204 litres) of water every minute.

- The proposed mine would consume water for several different industrial purposes. Water would be pumped underground as part of lithium extraction, used during refining, and required for dust control throughout the mining operation.

- Thacker Pass would have to acquire existing water rights to operate. Water resources in the region are strictly allocated because of scarcity. The mine would therefore need to purchase rights from existing holders, creating a direct competition between industrial lithium production and the ranching and farming activities that support the local economy.

- The Bureau of Land Management identified a potentially serious groundwater contamination risk. Its environmental impact study found a distinct possibility that the project could release unacceptable levels of arsenic into the groundwater. The resulting contamination could potentially make the region's water supply unusable for hundreds of years.

- Thacker Pass is an important wildlife corridor between two biodiversity hotspots. The pass connects the Double-H and Montana mountains. The environmental assessment found that the proposed mine would likely destroy or deteriorate thousands of acres of habitat used by pronghorn antelope, sage grouse, golden eagles, and other species.

- The Fort McDermitt Paiute and Shoshone Tribe is among the strongest indigenous opponents of the mine. Members say that two tribal families survived during the period when American soldiers rounded up indigenous people and transported them to reservations by hiding in the shelter of Thacker Pass. They consequently associate the area's preservation with the continued existence of their tribe.

- The tribe considers Thacker Pass a sacred historical location. Part of its objection concerns a massacre that members say occurred there. However, the historical massacre assertion was challenged in litigation concerning the mine, and the judge rejected the claim, citing insufficient evidence.

- The tribe also raised concerns about violence against indigenous women around resource-extraction projects. It presented evidence connecting the development of comparable mining operations, which are predominantly staffed by men, with increases in rape and murder of indigenous women in surrounding communities.

- Opposition to Thacker Pass draws heavily on experiences from South America's lithium triangle. The region encompasses parts of Chile, Argentina, and Bolivia and contains some of the world's most productive lithium facilities. Like northern Nevada, it includes remote, arid landscapes, small communities, and historically oppressed indigenous populations.

- Lithium production has brought economic growth to the lithium triangle alongside environmental and cultural damage. Opponents of Thacker Pass use these experiences as evidence of what can happen when mining expands into vulnerable communities without adequately addressing its local consequences.

- The ethical problems surrounding battery production extend beyond lithium to cobalt mining in the Democratic Republic of the Congo. Approximately 70% of the world's cobalt comes from the DRC, which the narrator identifies as the world's eighth-poorest country according to World Bank figures.

- A substantial minority of Congolese cobalt production comes from informal artisanal mining. The narrator describes this as an illegal, unregulated practice in which individuals mine cobalt independently and sell it to middlemen. Most other production is conducted by larger mining companies, which also have concerning safety and human-rights records.

- Artisanal cobalt mining involves severe worker-safety and human-rights problems. The absence of meaningful safety standards and regulations has allowed child labour and deadly mine collapses to become widespread.

- Cobalt mining also creates long-term health risks for surrounding communities. Exposure to mining operations has been linked to significant health problems later in life and fatal birth defects among children in the region.

- The narrator argues that genuinely ethical cobalt and environmentally clean lithium are extremely difficult to obtain. There is little appetite for expanding lithium mining in accessible locations, while limited progress has been made in improving the social and environmental conditions of cobalt production in the DRC.

- The central supply problem is not simply producing more battery metals, but producing them responsibly. Growing EV demand will require substantially more lithium and cobalt. Increasing production while maintaining or improving environmental standards and human-rights protections could prove even more difficult than increasing production itself.

- One solution is to improve battery technology so that fewer raw materials are needed. Rather than relying entirely on opening additional mines, manufacturers could reduce the quantities of lithium and other metals required for each vehicle through better battery chemistry and design.

- Solid-state batteries are presented as the most promising near-term technological improvement. Traditional EV batteries use a liquid, viscous, lithium-based electrolyte to transport ions. Solid-state batteries replace this with a solid material-based ion transport mechanism.

- Solid-state batteries could eliminate the need for cobalt and nickel. Unlike many current commercial battery chemistries, they can be manufactured without these two problematic and expensive metals.

- Solid-state batteries also offer improved fire safety. Their different electrolyte composition reduces the risk of battery fires, potentially eliminating the need for some expensive safety equipment currently required in EV battery packs.

- Higher energy density is the biggest potential advantage of solid-state batteries. Current lithium-ion EV batteries store approximately 114 watt-hours per pound, or 250 watt-hours per kilogram. The narrator illustrates this by estimating that one pound of battery can move a Tesla Model 3 approximately 0.4 miles, while one kilogram can move it approximately 1.3 kilometres.

- Solid-state batteries could approximately double battery energy density. Expected performance is between 175 and 225 watt-hours per pound, or 400–500 watt-hours per kilogram.

- Higher energy density could substantially reduce the weight of electric vehicles. A Tesla could potentially halve the weight of its approximately half-ton battery pack while maintaining or increasing driving range. A lighter battery would also mean the vehicle would need less energy to carry its own weight.

- Solid-state batteries could eventually become cheaper than conventional lithium-ion batteries. Industry experts cited in the episode believe that, once manufactured at sufficient scale, their production costs could fall below those of even the cheapest existing lithium-ion batteries.

- The main obstacle to solid-state batteries is achieving commercially viable manufacturing scale. Battery production requires enormous volumes before manufacturing costs become competitive. However, EV manufacturers are unlikely to adopt the technology widely until it becomes affordable, while the necessary affordability depends on the scale that mass-market EV adoption would provide.

- Solid-state batteries need to establish themselves in smaller markets before reaching mainstream electric vehicles. The proposed progression is:

• Initial production for niche applications such as medical devices, race cars, and fighter jets.
• Expansion into consumer electronics, where lighter batteries and longer battery life provide advantages.
• Adoption by high-end EV manufacturers seeking exceptionally long driving ranges as a luxury feature.
• Eventually, expansion into ordinary mass-market electric vehicles once production costs fall sufficiently.

- Mainstream solid-state EV adoption was expected to remain more than a decade away. Even if the transition happened sooner than anticipated, it would not eliminate the world's need for substantially more lithium.

- The Salton Sea in California offers a potentially less conventional source of lithium. Unlike the proposed environmental disruption at Thacker Pass, the Salton Sea is already an existing environmental disaster that could potentially become the foundation of a new lithium industry.

- The Salton Sea was created by an accidental diversion of Colorado River floodwaters approximately a century ago. Water breached an irrigation canal and accumulated in the Imperial Valley, a geographic depression approximately 236 feet (72 metres) below sea level.

- Evaporation has progressively increased the Salton Sea's salinity and contamination. The water body remains today, but the gradual loss of water has left an increasingly concentrated and polluted accumulation.

- Geothermal activity beneath the Salton Sea creates an opportunity to generate carbon-free electricity and extract lithium. Underground volcanic formations heat water to hundreds of degrees. When brought to the surface, the pressure change converts the superheated water into steam, which can drive electricity-generating turbines.

- Geothermal power plants can produce electricity without burning fossil fuels to generate steam. Conventional power plants generally use coal or natural gas to heat water, whereas the geothermal facilities around the Salton Sea use heat generated naturally underground.

- The geothermal brine contains lithium that could be extracted during electricity generation. Rather than constructing an entirely separate lithium-mining operation, existing geothermal facilities could potentially add a lithium-extraction stage to their processes.

- Berkshire Hathaway Energy has already established a significant geothermal presence around the Salton Sea. The company has built 10 geothermal power plants in the area and is identified as the largest existing energy company operating there.

- Berkshire Hathaway Energy was leading the Salton Sea lithium-extraction effort with federal financial support. A sizable federal grant was helping advance the project, and the company expected its demonstration facility to be operational later in 2022.

- Commercial lithium extraction from Salton Sea geothermal water still faced major technological obstacles. Lithium represents only a tiny proportion of the mixture of materials in the geothermal brine, making economical separation difficult. The presence of lithium alone does not guarantee commercially competitive production.

- Other companies were also developing lithium-extraction projects around the Salton Sea. The narrator suggests that the area could become America's first major lithium boomtown as multiple competitors pursue the opportunity.

- Electric vehicles are more emissions-intensive to manufacture than conventional internal-combustion vehicles. Their batteries require energy-intensive production and materials extraction, creating a larger initial environmental burden.

- Manufacturing emissions are not the largest source of a car's lifetime emissions. The narrator argues that the majority of emissions from both conventional cars and EVs come from driving rather than vehicle production.

- Electric vehicles produce approximately 75% fewer lifetime emissions than internal-combustion vehicles. The comparison includes manufacturing, operation, and eventual scrapping. The narrator maintains that this advantage exists even when EVs are charged using today's electricity grids, which still rely heavily on fossil fuels.

- The environmental advantage of EVs is expected to increase as electricity grids become cleaner. As renewable and other low-carbon electricity sources replace fossil-fuel generation, the emissions associated with operating electric vehicles should decline further.

- The narrator strongly rejects the claim that electric vehicles are worse for the climate overall. He characterizes arguments to that effect as either misinformed or deliberately misleading, pointing to the approximately 75% lifecycle-emissions advantage.

- The transition to electric mobility creates a conflict between global environmental benefits and local environmental damage. Expanding lithium mining may help reduce worldwide transportation emissions while destroying habitats, threatening water supplies, and damaging communities in the places where extraction occurs.

- The coming lithium boom could encourage mining companies to cut environmental and social safeguards. The narrator warns that the pressure to secure sufficient raw materials may lead to corners being cut as governments and manufacturers race to expand battery production.

- The central political question is who should bear the local costs of global climate protection. The narrator asks whether destroying relatively pristine environments such as Thacker Pass is justified by the broader objective of slowing climate change, and whether the environmental burden should continue falling disproportionately on vulnerable populations.

- The episode compares the lithium dilemma with other difficult public-policy trade-offs. Examples include sending teenagers to war to prevent terrorist organizations from spreading, accepting economic damage to slow a pandemic, and allowing private gun ownership for self-protection despite the increased access this gives to dangerous individuals.

- The underlying issue is determining how much harm society should accept in pursuit of a greater good. Climate policy is presented not merely as a question of reducing emissions, but also as a question of environmental justice, acceptable sacrifice, and the fair distribution of the costs of the energy transition.