Toto Ltd.

Hiroshi Takamatsu

Shigeru Ando

Hidetaka Miyahara

Hisato Haraga

Tomohiro Nishi

Junji Tanaka

Kazuyuki Watanabe

Non-membrane electrolytic cell for electrolysis of water

A water electrolyzer for electrolyzing water to produce and recover acidic and/or alkaline water. The electrolyzer is of the membraneless laminar-flow type which is designed to electrolyze water without placing a membrane between the electrodes. To this end, the anode and cathode are arranged closely with one another with a very small spacing (generally less than 1 mm) to establish a laminar flow in a narrow flow path. The anode is provided with a slit-shaped aperture for separating a thin layer of acidic water flowing along the anode surface. This aperture is situated sufficiently upstream of the downstream end of the flow path to ensure that the layer of acidic water is separated away from the remainder of the laminar flow while the laminar flow is sustained in the flow path. Accordingly, formation of turbulence at a point of acidic water separation is minimized so that highly acidic water can be recovered.

Membraneless water electrolyzer

Growing community of inventors

Kitakyushi, Japan

Hiroshi Takamatsu