How to Properly Dispose of Used Electric Vehicle Batteries

Everything You Need to Know about EV Battery Disposal

It's one of the many worries you hear about electric vehicles: What happens to the battery packs of EVs when they're used up? We're not supposed to toss certain kinds of small batteries in the trash, so what happens to those that weigh hundreds of pounds? Do they just end up in landfills?

We can simply look to the precedent set by the disposal of smaller high-voltage battery packs, such as those used in the Toyota Prius and the Honda Insight, to answer this question. At the end of their lives, these packs don't end up in landfills.

Are EV Batteries Recyclable?

Instead of trashing the batteries, auto recyclers (the businesses formerly known as junkyards) send them to specialist firms that dismantle the packs and break them down into their different materials: wires, circuitry, plastics, the actual cells. The cells and circuits are crushed to separate and purify the various metals in them, including nickel and lithium.

Dealerships also dispose of used hybrid packs responsibly, relying on collection programs set up by automakers, which send these batteries to those same recyclers to undergo the same dismantling procedures. Toyota's program is arguably the most notable, given that the automaker has sold the bulk of hybrid vehicles in the U.S.

Electric-Car Battery Recycling

While EV batteries hold 20 to 100 times more energy than those used by hybrids, they're recycled pretty much the same way as the smaller ones. The packs are shipped to a facility specializing in battery disassembly and recycling their components. Certain parts are easy: steel, copper, and aluminum scrap metal usually go into the nationwide metals-recycling stream. The plastics may not be recyclable, but theyre a small proportion of the total contents of an EV battery pack.

Stream of Critical Materials

Its the cells themselves that hold the most allure. Theyre the most expensive part of the complete battery pack when new, and the prize is their lithium, cobalt, manganese, nickel, and, to a lesser extent, aluminum. The cells are ground up, the resulting stream is purified in various ways, and the end of the process is a pure supply of the desired metals.

Recycling goods is big business across many industries, and the automobile business is no exception, with metals such as steel and aluminumwhich make up much of a car's bodytypically getting recycled at the end of a vehicle's service life. EVs are distinctive, though, thanks to their battery metals.

In 2017, a Silicon Valley tech entrepreneur with extensive experience in auto startups launched his own company to scale up battery collection and recycling. JB Straubel, one of the earliest employees at Tesla (and also the automaker's former chief technology officer), raised hundreds of millions of dollars of venture capital when he announced the launch of a battery-recycling and -supply startup. Redwood Materials is now headquartered in Carson City, Nevada, not far from Tesla's battery-manufacturing facility in the Reno area. Straubel's decision to focus on supplying battery minerals spurred an investment race, and more than a dozen venture-funded startups or corporate entities have emerged in various parts of the battery-recycling industry.

Currently, Redwood's biggest challenge is procuring a sufficient number of EV batteries to recycle. The company has set up programs with auto-recycler trade groups and automakers, including Ford and Volkswagen, to boost its supply of used cells to feed into its grinders and purifiers. The U.S. Department of Energy even gave Redwood a $2 billion loan to build out its Nevada factory.

Is There a Second Life for Used EV Batteries?

An EV battery pack is assumed to be at the end of its life when it has no more than 70 to 75 percent of its original capacity. Hitting this mark may take 10 years or more. Even with a quarter or more of peak capacity gone, aging battery packs still offer plenty of energy storage20-to-90 kilowatt-hours, or up to three days' worth of electricity for the average American home. It's long been thought that a robust " width="50"second use" industry might spring up to buy and repurpose used packs, extending their lives by another 10 years or more.

This hasn't happened at any scale, though. Sure, automakers installed early demonstration projects, and some energy-storage installations are now live in various countries, but potential customers for on-site energy storage largely continue to prefer fresh new cells over a motley array of used EV packs with unknown usage and duty cycles (basically, the wear and tear of driving).

The challenge of reuse is particularly difficult because new cells are dramatically cheaper now, to the point that it's no longer clear there's a business model in buying, transporting, repurposing, and reselling used cells from older battery packs.

The Future of EV Battery Recycling

What will likely ensure that used battery packs aren't just tossed into the ground is the valuable metals inside: lithium, nickel, cobalt, manganese, aluminum. Demand for batteries will soar in the 2020s and '30s as the world's largest car marketsChina, North America, Europecontinue to transition to EVs. And new mining takes a long time to set up, especially in countries with environmental safeguards.

Unlike liquid hydrocarbons, whose energy content is gone after they're burned as gasoline, an atom of cobalt is an atom of cobalt regardless of how many batteries its been in. So, end-of-life EV batteries offer a future source of those valuable metals, already extracted from the ground and neatly packaged in a box.

Sure, the battery pack and its cells and modules must be separated and ground up, not to mention have their useful metals divided from their plastic waste, but battery metals recycled here now have a major advantage that newly mined cobalt or nickel may not: They're already located in North America. The Inflation Reduction Act signed by President Biden includes huge subsidies for U.S. production of batteries into the 2030s.

The Inflation Reduction Act's EV purchase incentives apply only to vehicles whose battery minerals come from a list of countries that notably does not include China, which today is the source of most of the world's EV battery metals. But while an EV battery's metals may have come from China when they were first mined, once a U.S. recycler separates the cells back into their component metals, that "new" lithium or nickel is now considered to be from the U.S.

So, dont worry about the disposal of your EV's battery pack at the end of its life. Odds are it'll be carefully collected and broken down into its component parts, at which point its fundamental components will be made right back into more batteriesperhaps for your next EV.

John Voelcker edited Green Car Reports for nine years, publishing more than 12,000 articles on hybrids, electric cars, and other low- and zero-emission vehicles and the energy ecosystem around them. He now covers advanced auto technologies and energy policy as a reporter and analyst. His work has appeared in print, online, and radio outlets that include Wired, Popular Science, Tech Review, IEEE Spectrum, and NPR's "All Things Considered." He splits his time between the Catskill Mountains and New York City and still has hopes of one day becoming an international man of mystery.

Used Household Batteries

Find information about the types of batteries used in households and how to manage them when they are no longer needed.

Certain batteries should NOT go in household garbage or recycling bins. This page can inform you on how to manage these batteries safely. Waste batteries can always be recycled or taken to household hazardous waste collection points.

To prevent fires from lithium-ion batteries, tape battery terminals and/or place batteries in separate plastic bags and never put these batteries in household garbage or recycling bins.

On this page:

Background

Every year in the United States, millions of single use and rechargeable batteries are bought, used and recycled or disposed of in the trash. Batteries come in various chemistries, types and sizes to fit their use.

• Single-use batteries can generally be removed from the device when they stop powering the device.
• Rechargeable batteries may be removable or permanently attached to the device.

The increased demand for batteries can be traced largely to the rapid increase in use of small portable electronics, power tools, and other everyday items, as well as the increase in smart products, such as small and large appliances and automobiles.

Batteries are manufactured using different mixtures of chemical elements designed to meet customers power and performance needs. Batteries can contain metals such as mercury, lead, cadmium, nickel and silver, which can pose a threat to human health or the environment when improperly managed at the end of their service life. Battery types are identified by marking and labeling, not by the batterys shape or the color of the label.

Some batteries may also contain materials such as cobalt, lithium and graphite that are considered critical minerals by the United States Geological Survey.Critical minerals are raw materials that are economically and strategically important to the United States and have a high supply risk potential and for which there are no easy substitutes. Consequently, every effort should be made to recycle and recover these materials to ensure they will be available for generations to come.

Once a battery is no longer useful, the type and chemistry of the battery determines which of the various waste management options to use. It is important to manage batteries correctly according to their type because some batteries can cause a risk to safety and health if mismanaged at the end of their lives. Batteries can have enough energy to injure or start fires even when used and when they appear to be discharged. For safety, remember that not all batteries are removable or serviceable by the userheed battery and product markings regarding safety and use for all types of batteries.

Single-Use Batteries

Rechargeable Batteries

Automotive Batteries

There are several types and applications of batteries used in vehicles today. There are automotive starting batteries used with internal combustion engines, large electric vehicle battery packs that power the vehicle and small batteries that power accessories such as remote door locks or back up the computers memory.

Federal Battery Laws

State Battery Recycling Laws

Some states have enacted battery recycling laws for various types of consumer batteries. To see a map of state battery laws, go to the Call2Recycle website.