Abstract:
A bipolar electrode for an electolyser. It is characterized in that the anode surface and the cathode surface of said electrode both comprise a porous conductive material which includes sintered nickel previously impregnated with nickel molybdate. The invention is used for manufacturing hydrogen by electrolysing an aqueous alkaline solution.
Abstract:
An amorphous cationic conductor of lithium comprising a composition corresponding to the general formula: {B2O3, xM, yN} , aLi2O, bLizQ 11 in which: M is chosen from the group formed by: Al2O3, V2O5, P2O5, As2O5 As2O3; N is chosen from the group formed by: SiO2 and GeO2; Q is chosen from the group formed by halogen anions and bi- or tri-valent mono- or poly-atomic anions exclusive of O2-; O
Abstract:
The invention relates to a semi-permeable membrane for lead acid batteries. The membrane has a microporous structure comprising a first polymer and a second polymer closely mixed together, the first polymer being poly (2-hydroxyethylmethacrylate), known as reticulated poly HEMA, characterized by the fact that the second polymer comprises one polymer or a mixture of several different polymers chosen from among polyoxyethylene glycol, polyvinylpyrrolidone, polyacrylic acid, polymethacrylic acid, copolymers of acrylic and methacrylic acid, polyacrylates and polymethacrylates of alkyl, and the copolymers of the acrylates and methacrylates of alkyls.
Abstract:
A high-power laser head has a neodymium-doped glass rod as its active material and a source of light for exciting the glass rod to make it amplify laser radiation at 1.06 microns wavelength. The light source tends to illuminate the outer portions of the rod better than its axial zone thereby exciting the rod un-evenly. However, the outwardly directed light from the light source is collected by a spherical reflector and refocussed on a ruby laser which is aimed along the axial zone of the glass rod to increase its excitation in that zone and provide a more evenly excited glass rod. A mirror is placed between the glass rod and the ruby laser on the axis of the rod. The mirror reflects laser light at 1.06 microns wavelength but allows it to pass at the ruby wave length.