A memory circuit which has both RAM cells and ROM cells along a common row has a ROM cell which is directly connected to the word line for the row but which is not enabled when a logic state opposite to that represented by the ROM cell is attempted to be written into the ROM cell. Consequently the only word line required for enabling the ROM cells is the word line which enables the RAM cells.

This invention relates to electrochemical cells wherein the cathode comprises ceramics containing copper oxides characterized as perovskites.

A solar cell comprising layers of n-type and p-type crystalline or substantially crystalline semiconductor material separated by a layer of amorphous semiconductor material having a larger coefficient of absorption than the outer p-type and n-type layers.

Disclosed is a vertical and monopolar box type electrolytic cell for the electrolysis of an aqueous alkali metal chloride solution providing a cation exchange membrane as a separator between anodes and cathodes, which comprises an anode compartment having at least one anode solution inlet, at least one anode solution outlet and at least one anode gas outlet, respectively, and a cathode compartment having at least one cathode solution inlet, at least one cathode solution outlet and at least one c...

An electrochemical cell having a housing containing a sodium anode assembly, a cathode assembly, and an electrolyte, in which the electrolyte is a sodium ion conducting alkali metal aluminum tetrahalide and the cathode material is a transition metal chalcogenide, or a reaction product of the chalcogenide and the electrolyte, disposed on a substrate in contact with the electrolyte.

The electrolysis cell, e.g. for use in the construction of an electrolyzer for the production of hydrogen on an industrial scale, comprises an alternate series of electrodes 1 to 7 and plane diaphragms 8 to 13, which are parallel and separated from one another by spaces 58 in which an electrolyte can circulate between inlets 16, 17 located on one face 14 of the cell and the outlets 18, 19 located on an opposite face 15 of the cell. The inlet and outlet faces 14, 15 of the cell are parallel to th...

The present invention relates to lithium cells of the wound electrode high power type, with reduced short-circuit current, wherein the short-circuit current is reduced by the use of an electrolyte of reduced concentration or activity, or by the use of an electrode of lithium alloyed with magnesium, calcium, aluminum, cadmium or silicon.

An electrolytic diaphragm cell for the production of halogen, hydrogen and an alkali metal hydroxide solution by electrolysis of an aqueous alkali metal halide solution, the cell comprising a plurality of anodes vertically mounted on the base of the cell, a cathode box providing cathodes between adjacent anodes, and a hydraulically permeable diaphragm between adjacent anodes and cathodes comprising one or more sheets of a porous non-melt-processable fluorine-containing polymer joined into the fo...

An electrolytic diaphragm cell for the production of halogen, hydrogen and an alkali metal hydroxide solution by electrolysis of an aqueous alkali metal halide solution, the cell comprising a plurality of anodes vertically mounted at one side of the cell, a cathode box mounted at the opposite facing side of the cell providing cathodes between adjacent anodes, and a hydraulically permeable diaphragm between adjacent anodes and cathodes, comprising a sheet of a porous non-melt-processable fluorine...

A device for supporting a sheet diaphragm on to a surface of a cathode which is made of a flexible insulating material and which can be caused or allowed to expand into the space between the anode and the diaphragm so that the diaphragm is pressed into contact with the cathode.