Abstract: The invention relates to a cathode composition usable in a lithium-ion battery, to a process for the preparation of this composition, to such a cathode and to a lithium-ion battery incorporating this cathode. The composition comprises an active material which comprises an alloy of lithium nickel cobalt aluminum oxides, an electrically conductive filler and a polymeric binder, and it is such that said polymeric binder comprises at least one modified polymer (Id2) which is the product of a thermal oxidation reaction of a starting polymer and which incorporates oxygenated groups comprising CO groups, the composition being capable of being obtained by the molten route and without evaporation of solvent by being the product of said thermal oxidation reaction applied to a precursor mixture comprising said active material, said electrically conductive filler, said starting polymer and a sacrificial polymer phase.

Abstract: There is described a terahertz (THz) imaging device and method for imaging an object hidden underneath clothing. The THz imaging device is generally configured for illuminating a region of clothing with a THz illumination beam, collecting a return optical beam reflected from the region of clothing in response to the illumination, generating a THz image based on the collected return optical beam, and tracking a position and orientation of the THz imaging device as the THz image is generated. A plurality of complementary THz images are generated by repeating the steps of illuminating, collecting, generating and tracking for a plurality of points of view of the THz imaging device relative to the clothing. By registering these THz images to one another in a common coordinate system based on the tracked position and orientation, the THz imaging device can output a composite THz image representing the hidden object, if any.

Abstract: The invention relates to a cathode composition usable in a lithium-ion battery, to a process for the preparation of this composition, to such a cathode and to a lithium-ion battery incorporating this cathode. The composition comprises an active material which comprises an alloy of lithium nickel cobalt aluminum oxides, an electrically conductive filler and a polymeric binder, and it is such that said polymeric binder comprises at least one modified polymer (Id2) which is the product of a thermal oxidation reaction of a starting polymer and which incorporates oxygenated groups comprising CO groups, the composition being capable of being obtained by the molten route and without evaporation of solvent by being the product of said thermal oxidation reaction applied to a precursor mixture comprising said active material, said electrically conductive filler, said starting polymer and a sacrificial polymer phase.