Abstract:
A microbattery that includes, in succession starting from a first substrate: a first current collector, a first electrode, an electrolyte, a second electrode consisting of a solder joint, a second current collector and a second substrate. Additionally, a method for manufacturing a microbattery, which includes the following steps: forming a thin-film multilayer including, in succession from the first substrate, a first current collector, a first electrode, an electrolyte and a first metal film; forming a second current collector on a face of a second substrate; and forming a second electrode by soldering the first metal film and the second current collector together, said substrates being placed facing each other during assembly.
Abstract:
An electrical energy storage and/or generation device with an architecture including a stack of electrical storage and/or generation elements, such as microbatteries. An electrical connection is not made between the different stacked elements during manufacture, but subsequently with assistance of an electronic control unit to configure, in series and/or in parallel, all or a proportion of the elements, and to configure electrical outputs of the device, such as the electrical voltage or the storage capacity.
Abstract:
The invention relates to a microbattery that comprises a stack on a substrate, covered by an encapsulation layer and comprising first and second current collector/electrode assemblies, a solid electrolyte and electrical connections of the second current collector/electrode assembly to an external electrical load. The electrical connections are formed by at least two electrically conductive barriers passing through the encapsulation layer from an inner surface to an outer surface of the encapsulation layer. Each of the barriers has a lower wall in direct contact with a front surface of the second current collector/electrode assembly and an upper wall opening onto the outer surface of the encapsulation layer. The barriers form a compartmentalization network within the encapsulation layer.
Abstract:
The invention relates to a microbattery that comprises a stack on a substrate, covered by an encapsulation layer and comprising first and second current collector/electrode assemblies, a solid electrolyte and electrical connections of the second current collector/electrode assembly to an external electrical load. The electrical connections are formed by at least two electrically conductive barriers passing through the encapsulation layer from an inner surface to an outer surface of the encapsulation layer. Each of the barriers has a lower wall in direct contact with a front surface of the second current collector/electrode assembly and an upper wall opening onto the outer surface of the encapsulation layer. The barriers form a compartmentalization network within the encapsulation layer.
Abstract:
The microcomponent, for example a microbattery, comprising a stack with at least two superposed layers on a substrate, is made using a single steel mask able to expand under the effect of temperature. The mask comprises at least one off-centered opening. The mask being at a first temperature, a first layer is deposited through the opening of the mask. The mask being at a second temperature, higher than the first temperature, a second layer is deposited through the opening of the mask. Finally, the mask being at a third temperature, higher than the second temperature, a third layer is deposited through the opening of the mask.
Abstract:
The microbattery is formed by a stack of solid thin layers on a substrate which, starting from the substrate, successively comprises a first electrode, a solid electrolyte and a second electrode/current collector assembly. A first surface and a second surface of the electrolyte are respectively in contact with a main surface of the first electrode and a main surface of the second electrode/current collector assembly. The dimensions of the main surface of the first electrode are smaller than the dimensions of the main surface of said assembly, and the dimensions of the first surface of the solid electrolyte are smaller than the dimensions of the second surface of the solid electrolyte. The solid electrolyte is furthermore not in contact with the substrate.
Abstract:
A microbattery that includes, in succession starting from a first substrate: a first current collector, a first electrode, an electrolyte, a second electrode consisting of a solder joint, a second current collector and a second substrate. Additionally, a method for manufacturing a microbattery, which includes the following steps: forming a thin-film multilayer including, in succession from the first substrate, a first current collector, a first electrode, an electrolyte and a first metal film; forming a second current collector on a face of a second substrate; and forming a second electrode by soldering the first metal film and the second current collector together, said substrates being placed facing each other during assembly.
Abstract:
The method for eliminating metallic lithium on a support comprises a plasma application step. The plasma is formed from a carbon source and an oxygen source with a power comprised between 50 and 400 W. It transforms the metallic lithium into lithium carbonate. The method then comprises a dissolution step of the lithium carbonate in an aqueous solution.
Abstract:
The invention relates to a solid electrolyte, to a process for its manufacture and also to devices comprising it.The electrolyte of the invention is an amorphous solid of formula SivOwCxHyLiz, in which v, w, x, y and z are atomic percentages with 0≦v≦40, 5≦w≦50, x>12, 10≦y≦40, 1≦z≦70, and 95%≦v+w+x+y+z≦100%.The electrolyte of the invention finds application in the field of electronics and microbatteries in particular.
Abstract translation:本发明涉及一种固体电解质,其制造方法以及包含它的装置。 本发明的电解质是式SivOwCxHyLiz的无定形固体,其中v,w,x,y和z是0 <= v <= 40,5 < = y <= 40,1 <= z <= 70,95%<= v + w + x + y + z <= 100%。 本发明的电解质特别适用于电子和微电池领域。
Abstract:
A process for realizing a positive electrode of a lithium-ion battery utilizes deposition by cathode sputtering in several steps. Two successive deposition steps are separated by a cooling of the electrode during its realization, a first intermediate step of sputtering the target without introducing oxygen, and a second intermediate step of sputtering the target while introducing oxygen. The electrode obtained is of amorphous vanadium oxide and exhibits good capacity and reversibility.