Abstract

an internal part having a thickness strictly less than the thickness of the spacer, the peripheral part and the internal part being in one piece and connected to each other forming an internal annular shoulder so that the internal part has a substantially annular intermediate face extending in a plane parallel to the two principal faces of the peripheral part and situated between the two principal faces.

IPC Classes  ?

• C25B 9/20 - Assemblies comprising a plurality of cells of the filter-press type
• C25B 13/02 - DiaphragmsSpacing elements characterised by shape or form
• C25B 13/04 - DiaphragmsSpacing elements characterised by the material
• F16J 15/08 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
• F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering

Abstract

Une entretoise (100) pour une cellule (3) d'électrolyseur, de forme sensiblement annulaire comprend :- une partie périphérique (101) présentant deux faces principales (105, 107) parallèles et opposées l'une par rapport à l'autre, la distance séparant les deux faces principales (105, 107) définissant une épaisseur (200) de l'entretoise (100), et- une partie interne (103) présentant une épaisseur (201) strictement inférieure à l'épaisseur (200) de l'entretoise (100),la partie périphérique (101) et la partie interne (103) étant d'un seul tenant et reliées l'une à l'autre en formant un épaulement annulaire interne de sorte que la partie interne (103) présente une face intermédiaire (111) sensiblement annulaire et s'étendant selon un plan parallèle aux deux faces principales (105, 107) de la partie périphérique (101) et situé entre les deux faces principales (105, 107).

IPC Classes  ?

• C25B 13/02 - DiaphragmsSpacing elements characterised by shape or form

Abstract

The invention relates to an electrochemical reactor which includes at least one electrochemical cell (6) having a membrane/electrode assembly (10) sandwiched between a first separating plate (24) and a second separating plate (26), the membrane/electrode assembly (10) having an electrolytic membrane (12) sandwiched between two electrodes (14, 16). Each electrochemical cell has a respective porous diffusion layer (32, 34) inserted between the membrane/electrode assembly (10) and each separating plate (24, 26). The or each electrochemical cell includes a spacing ring (36) inserted between a peripheral region (20) of the membrane/electrode assembly (10) and the first separating plate (24), and lacks a spacing ring between the membrane/electrode assembly (10) and the second separating plate (26), the spacing ring being configured such as to maintain a separation between the membrane/electrode assembly (10) and the first separating plate (24) and to ensure the seal between same around the active region (18).

IPC Classes  ?

• C25B 9/18 - Assemblies comprising a plurality of cells
• H01M 8/24 - Grouping of fuel cells, e.g. stacking of fuel cells
• H01M 8/02 - Fuel cellsManufacture thereof Details

Abstract

A seal for an electrolyser cell and an electrolyser cell provided with such a seal. A seal (100) for an electrolyser cell comprising a core (101) and a shell (201). The core (101) is generally annular and has two faces mutually opposite each other in a thickness direction and at least two openings (111, 113). The two openings (111, 113) are through-openings in the thickness direction and are substantially diametrically opposed to each other. The shell (201) at least partially covers the two faces, leaving the two openings (111, 113) at least partially free. The shell (201) has at least one first rib (203) extending over a first (103) of the two faces according to a contour enclosing an inner edge (107) of the core (201) and the two openings (111, 113) in such a way as to allow a fluid to circulate between the two faces in the thickness direction.

IPC Classes  ?

• F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
• H01M 8/02 - Fuel cellsManufacture thereof Details
• C25B 9/00 - Cells or assemblies of cellsConstructional parts of cellsAssemblies of constructional parts, e.g. electrode-diaphragm assembliesProcess-related cell features
• C25B 9/20 - Assemblies comprising a plurality of cells of the filter-press type

Abstract

A seal for an electrolyser cell and an electrolyser cell provided with such a seal. A seal (100) for an electrolyser cell comprising a core (101) and a shell (201). The core (101) is generally annular and has two faces mutually opposite each other in a thickness direction and at least two openings (111, 113). The two openings (111, 113) are through-openings in the thickness direction and are substantially diametrically opposed to each other. The shell (201) at least partially covers the two faces, leaving the two openings (111, 113) at least partially free. The shell (201) has at least one first rib (203) extending over a first (103) of the two faces according to a contour enclosing an inner edge (107) of the core (201) and the two openings (111, 113) in such a way as to allow a fluid to circulate between the two faces in the thickness direction.

IPC Classes  ?

• F16J 15/12 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
• H01M 8/02 - Fuel cellsManufacture thereof Details