Toyota and Woven Planet have developed a portable hydrogen cartridge

Toyota wants hydrogen to power entire cities in Japan. Its subsidiary Woven Planet broke ground last February for a “Woven City” near Susono that will serve as a futuristic testbed for all manner of urban planning ideas and technologies, including expanded use of hydrogen fuel throughout the region .

Now Toyota and Woven have unveiled a working prototype of a portable hydrogen cartridge that aims to provide green energy for “a range of everyday activities inside and outside the home”.

The cartridges are cylinders 400 mm (16 in) long and 180 mm (7 in) in diameter with a target weight of 5 kg (11 lb) when full. Depending on the efficiency of the external fuel cell, with which the hydrogen is converted back into electricity, they transport around 3.3 kWh of usable energy. They have small grab handles at the top and are designed to be slotted and twisted wherever they are used.

They could be used as replaceable hydrogen batteries for electric cars, motorcycles and drones. They could be plugged into the walls of homes that aren’t connected to a grid to power the whole house from a fuel cell. They could be used to power heaters or provide electricity in remote locations. With a small fuel cell on top, they could be treated as large backup power banks for charging devices.

Commercially, they seem to work a bit like BBQ gas cylinders; They exchange them as needed and are refilled at gas stations. But the two companies appear to expect that they will also operate a delivery service, taking hydrogen canisters to where they’re needed. Watch a video below.

Portable hydrogen cartridge (prototype)

Source: Woven Planet

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