摘要:
A fuel cell comprises at least one stack (5) the main elements of which are perpendicular to a support substrate (1). This stack (5) is provided with an electrolytic membrane (6) located between first and second electrodes (15a, 15b). The first and second electrodes (15a, 15b) each comprise a catalytic layer (7) in contact with the electrolytic membrane (6). Each electrode comprises an electrically conductive porous diffusion layer (16) and each stack (5) is inserted between electrically conductive first and second support partitions (17a, 17b) which are perpendicular to the support substrate (1) and constitute current collectors for the stack (5). The support partitions (17a, 17b) are electrically isolated from each other.
摘要:
The invention relates to a microbattery comprising through-connections and to the production method thereof. The inventive microbattery comprises a support (1) having a front face (2) and a rear face (3) and first (4) and second (5) current collectors which are disposed on the front face (2) of the support (1). A stack comprising a cathode (8) and an anode (6) which are separated by an electrolyte (7) is disposed on the current collectors (4 and 5). The anode (6) and the cathode (8) are in contact with the first (4) and second (5) current collectors respectively. The aforementioned stack is covered with a protective layer (9). In addition, the microbattery comprises connections (10) which pass through the support (1) from the front face (2) to the rear face (3) thereof and which are in contact with the first (4) and second (5) current collectors. The stack preferably covers essentially all of the front face (2) of the support (1). The invention also relates to a method of producing the microbattery, which comprises: the etching of cavities in the front face (2) of the support (1), said cavities having a depth less than the thickness of the support (1); the filling of the cavities with a conductive material; and the removal of a layer of the rear face (3) from the support (1), in order to reveal the conductive material contained in the cavities.
摘要:
A fuel cell comprises at least two current collectors (4, 5), an electrically insulating separator element (2) and a solid electrolyte (6). Each current collector (4, 5) includes at least one transverse passage (4c, 5c) that passes through it from a first surface (4a, 5a) to a second surface (4b, 5b) and the separator element (2), having first and second opposed faces, is placed between the current collectors (4, 5). A plurality of transverse channels (2c) passes through the separator element (2) from the first face to the second face, and the ionically conducting solid electrolyte (6) occupies the volume bounded by the channels (2c) of the separator element (2) and by the passages (4c, 5c) of the current connectors (4, 5). The separator element (2) is formed by a thermoplastic polymer material and hard particles (8) are placed in transverse channels (2c).
摘要:
The invention relates to a device comprising a hydrogen/air fuel cell, having a movable element (32) capable, in the closed position, of covering the cathode of the cell (31) in a substantially sealed manner.
摘要:
Optoelectronic device (1) comprising a stack of layers arranged on an electrically insulating substrate (2), including at least one cathode (3) produced from a material having work function φ1, an electron collection layer (4), arranged above said cathode (3), produced from a material having work function φ2 and sheet resistance R, an active layer (5) comprising at least one p-type organic semiconductor material, having energy level HO1, characterised in that said work function φ2 of the electron collection layer (3) and said energy level HO1 of the active layer (5) form a potential barrier that is able to block the injection of holes from the cathode (3) to said active layer (5), and said sheet resistance R of said electron collection layer (4) is greater than or equal to 108 Ω.
摘要:
The invention relates to a device comprising a hydrogen/air fuel cell, having a movable element (32) capable, in the closed position, of covering the cathode of the cell (31) in a substantially sealed manner.