10/2/2023 0 Comments Nissan second lifeEven finding old batteries to test can be a challenge. Moreover, batteries coming out of service today are likely damaged from crashes, or have some manufacturing defect. Battery makers and automakers regularly change the cell chemistry and architecture of their batteries, making it hard to develop a standard process. “Evaluating the health of batteries is pretty essential to understanding whether it has value,” says Andy Latham, an electric vehicle salvage consultant at Salvage Wire. Before you can reuse an EV battery, you have to know how much juice it retains and whether it’s worthy of a second life. “And with lawyers-they can argue anything.” “It’s legally a bit of a gray area,” says Pesaran, the NREL engineer. GM recently recalled every Chevrolet Bolt because flawed batteries made by the Korean company LG Chem led to fires. One question: Who owns the reused batteries, and who’s responsible if something goes wrong? Automakers know they may be blamed if one of their old batteries is involved in a fire. ![]() But to many in the industry, reuse still feels like a fantastical science experiment, one that might end up in the dustbin of fabulous ideas that didn’t quite work out.Įlectric vehicle battery modules hooked up for health checks at ReJoule's warehouse in Los Angeles. Reusing old electric car batteries is a topic of much academic excitement, supported in the US by grants from agencies like the Department of Energy and the California Energy Commission. They could supplement renewable energy sources like solar and wind, storing energy when the sun is shining and the wind is blowing for moments when they’re not.īy 2030, retired EV batteries could provide 200 gigawatt-hours of energy storage globally each year, according to analysis from the consulting firm McKinsey-roughly 50 times the annual output of the Hoover Dam. They could provide back-up power for places that really shouldn't lose it, such as hospitals, eldercare facilities, and grocery stores, and places that don’t want to, like soccer stadiums. ![]() They could reduce the power costs for offices or homes by supplying it during peak periods, when utilities charge the most for electricity. But many experts say “spent” EV batteries would be best used to store energy, where research suggests they could support power grids for up to 12 years.
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