Abstract: A rechargeable power device comprises one or more supercapacitors, at least one rechargeable battery and control electronics arranged to couple the supercapacitor(s) to the at least one rechargeable battery. The rechargeable power device may be operable to rapidly recharge and provide power to electronic equipment, whilst being flexible in structure. The rechargeable power device may be integrated into a user device and/or garment.

Abstract: Disclosed is an anode for a lithium secondary battery. The anode includes a current collector in the form of a wire and a porous anode active material layer coated to surround the surface of the current collector. The three-dimensional porous structure of the active material layer increases the surface area of the anode. Accordingly, the mobility of lithium ions through the anode is improved, achieving superior battery performance. In addition, the porous structure allows the anode to relieve internal stress and pressure, such as swelling, occurring during charge and discharge of a battery, ensuring high stability of the battery while preventing deformation of the battery. These advantages make the anode suitable for use in a cable-type secondary battery. Further disclosed is a lithium secondary battery including the anode.

Abstract: A process for the electrochemical deposition of nanoscale catalyst particles using a sacrificial hydrogen anode as counter electrode for the working electrode is disclosed, whereby a concurrent development of hydrogen at the working electrode is mostly or completely avoided.

Abstract: A magnetic memory device may include a digit line on a substrate, a first insulating layer on the digit line, and a magnetic tunnel junction memory cell on the first insulating layer so that the first insulating layer is between the digit line and the magnetic tunnel junction memory cell. A second insulating layer may be provided on the magnetic tunnel junction memory cell, wherein the second insulating layer has a hole therein exposing portions of the magnetic tunnel junction memory cell. A bit line may be provided on the second insulating layer and on portions of the magnetic tunnel junction memory cell exposed by the hole in the second insulating layer, and ferromagnetic spacers may be provided on sidewalls of at least one of the digit line and/or the bit line. Related methods are also discussed.

Abstract: An electrochemical cell having a cathode and an anode in contact with an electrolyte. Both electrodes or one of them has an electrically conducting non-metal receptacle defining a chamber with a first metal having a melting point in the range of from about room temperature to about 800° C. inside said receptacle chamber. A second metal with a melting point greater than about 800° C. is in contact with the first metal inside the receptacle chamber and extends outside of the receptacle chamber to form a terminal for the anode. The electrolyte may include the oxides, halides or mixtures thereof of one or more of Li, V, U, Al and the lanthanides. Metal may be produced at the cathode during operation of the cell and oxygen or chlorine at the anode.

Abstract: The invention relates to a process for obtaining a fine powder of dendritic cadmium, characterized in that it comprises the following steps:(a) electrolytic production of cadmium metal on an electrode, under conditions such that there is formed a sponge consisting of tangled polymorphic dendrites,(b) removal and washing of the sponge,(c) disintegration of the sponge in a pulpy medium under conditions such that the dendrites are released in order to obtain a dendritic powder of particle size essentially less than a specified limit.

Abstract: A polymer-gel-coated conductor has a conductor member and a cross-linked polymer in a gel state. The polymer in gel state contains an electrolyte and coats the conductor member. An oxidative product or a reduction product of an organic matter or an inorganic matter has been precipitated on the surface of the conductor member or in the region of the polymer in gel state near the surface of the conductor member. Also disclosed are a method of producing the polymer-gel coated conductor and an electric cell in which at least one of a pair of electrodes is made of the polymer-gel-coated conductor.