Abstract: A secondary cell with a positive electrode, a negative electrode, and an electrolyte, the positive electrode containing insoluble sulfur.

Abstract: A secondary cell has a positive electrode, a negative electrode, and an electrolyte, and the positive electrode contains insoluble sulfur.

Abstract: A secondary cell has a positive electrode, a negative electrode, and an electrolyte, and the positive electrode contains insoluble sulfur.

Abstract: An electric energy generating apparatus configured to generate a desired electromotive force from hydrogen and oxygen is provided. The apparatus includes a hydrogen electrode film, an electrolyte film and an oxygen electrode film. The hydrogen electrode film, to which hydrogen is supplied, includes a catalyst layer containing a decomposing catalyst that decomposes hydrogen into protons and electrons. The electrolyte film includes a sheet having a plurality of voids. Oxygen is supplied to the oxygen electrode film. The voids in the electrolyte film are filled with proton-conducting material and/or the decomposing catalyst. This prevents the hydrogen from reaching the oxygen electrode film. When hydrogen is supplied to the hydrogen electrode film, the concentration of hydrogen of the oxygen electrode therefore decreased to such a value as required generating the desired electromotive force.

Abstract: An electric energy generating apparatus configured to generate a desired electromotive force from hydrogen and oxygen. The apparatus comprises a hydrogen electrode film, an electrolyte film and an oxygen electrode film. The hydrogen electrode film, to which hydrogen is supplied, comprises a catalyst layer containing a decomposing catalyst that decomposes hydrogen into protons and electrons. The electrolyte film comprises a sheet having a plurality of voids. Oxygen is supplied to the oxygen electrode film. The voids in the electrolyte film are filled with proton-conducting material and/or the decomposing catalyst. This prevents the hydrogen from reaching the oxygen electrode film. When hydrogen is supplied to the hydrogen electrode film, the concentration of hydrogen of the oxygen electrode therefore decreased to such a value as required generating the desired electromotive force.

Abstract: A coil winding jig comprises: a first block having a first flange to which the free end of the wire is fixed; a second block having a second flange and disposed opposite to and coaxially with the first block with the front surface of the second flange facing the front surface of the first flange and spaced apart a distance corresponding to the width of the coil to be formed from the front surface of the first flange; a third block disposed coaxially with the second block, having a middle portion contained within the second block, and a coil form having a front end to be pressed against the first flange and projecting from the middle portion through a hole formed in the second flange toward the first flange of the first block. The coil form is tapered toward the first flange, has an outer circumference consisting of inclined side surfaces and is provided with steps having a size smaller than half the diameter of the wire on its side surfaces contiguously with the front surface of the second flange.