Toyota Jidosha Kabushiki Kaisha

Sangkun Lee

Shinji Miyoshi

A high-pressure gas tank includes: a liner having an internal space for holding a gas; a strengthening layer stacked on the liner and having carbon fibers and a first resin; an intermediate layer stacked on at least a part of the strengthening layer; and a protective layer stacked on the intermediate layer and having glass fibers and a second resin. The intermediate layer has higher gas permeability than the strengthening layer and the protective layer.

High-pressure gas tank and method for producing high-pressure gas tank

Provided is a high-pressure tank including: a helical layer containing first fibers that are wound in a helical pattern and a first resin that fixes the first fibers; a hoop layer located outward of the helical layer in the high-pressure tank and containing second fibers that are wound in a hoop pattern and a second resin that fixes the second fibers; and an intermediate layer located between the helical layer and the hoop layer and containing third fibers that are thinner than at least either the first fibers or the second fibers and a third resin that fixes the third fibers, the first fibers of the helical layer, and the second fibers of the hoop layer.

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Toyota, Japan

Sangkun Lee