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Toyota shows off its latest big idea for cold hydrogen vehicles

They are still trying to make hydrogen vehicles work.

Toyota is pushing hydrogen-powered vehicle technology forward with a liquid hydrogen system design that includes a self-pressurizer to save escaping gas and reuse it as fuel to increase engine efficiency. Toyota introduced a liquid system in the GR Corolla H2 Concept in 2023, which keeps hydrogen at -253 degrees Celsius during filling and storing in the tank. Toyota exhibited a “self-pressurizer” at the Super Taikyu Series 2024 race this past weekend that “uses the pressure of the boil-off gas to increase pressure by two to four times and produce reusable fuel without using any additional energy.” It then hopes to feed any additional boil-off to a small fuel cell package to power the hydrogen pump motor for further efficiency.

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