Abstract: State-of-the-art flow batteries suffer from drawbacks such as congestion of their electrodes, defects in liquid tightness, or shunt currents, all of which may lead to efficiency drop. Solution The problem is solved by a flow battery comprising multi-chambered ducts (100) mutually plugged together, each duct containing an integrated air electrode (111) and partition walls being partly ion-permeably perforated and partly impermeable, and nonconducting joining elements with integrated passages, the joining elements plugged bilaterally onto the ducts (100).

Abstract: The interactive device comprises image capture means, at least one interaction space and means for producing an infrared light beam, comprising at least one light source emitting in the near-infrared range, directed towards the interaction space. The capture means comprise at least two infrared cameras covering said interaction space, and a peripheral camera covering the interaction space contained in an external environment. The device further comprises a transparent panel delineating on the one hand the interaction space included in the external environment and on the other hand an internal space in which the light source and capture means are arranged. It comprises at least one support element supporting said light source and/or the infrared cameras and at least one partially reflecting complementary element, the support element and complementary element being separated by the transparent panel.