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Can an electric car travel non-stop for 19 hours and cover a distance of 1,800 kilometers from Toronto to Halifax? Theoretically, this is now possible. Recently, Alcoa Canada and Phinergy from Israel unveiled a groundbreaking battery technology that promises extended range and long-lasting performance. This innovation could revolutionize the future of electric vehicles.
One of the main challenges with lithium-ion batteries in electric cars is their limited driving range. Most models today offer between 135 km (Nissan Leaf) and 480 km (Tesla S). Without a widespread network of fast-charging stations, long-distance travel remains impractical. However, Alcoa Canada and Phinergy have developed a 100-kilogram aluminum-air battery that can power a vehicle for up to 3,000 kilometers. In comparison, the Tesla Model S carries over 500 kilograms of battery but only manages less than 500 kilometers on a single charge.
This new battery isn’t charged via the traditional power grid. Instead, it’s recharged in the melt shop of Alcoa’s hydropower facility. When fully charged, the battery resembles a heavy panel made mostly of aluminum. Inside, aluminum plates react with oxygen from the air and water added by the user to generate energy through a chemical process that converts aluminum into aluminum oxide. This reaction is similar to how aluminum naturally oxidizes when exposed to air, but the new technology uses special electrolytes to break down the oxide layer and keep the reaction going.
According to Alcoa Canada, vehicles using these batteries still require a lithium-ion battery as a backup. The aluminum battery kicks in once the lithium battery is depleted, allowing for extended use. Drivers only need to add water once a month. After about a year of use, the aluminum battery can be replaced at service stations, making maintenance simple and efficient.
The prototype was recently tested on the Formula One race track in Montreal, and Phinergy presented the technology at the International Aluminum Congress in Canada on June 4. The companies are currently negotiating with the Quebec government to move forward with production, aiming to bring this zero-emission vehicle to market as soon as possible. (Reporter: Feng Weidong)
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