JP6738383B2 - Modular planar connecting device for solid oxide fuel cell and solid oxide fuel cell including the same - Google Patents

Description

The present disclosure relates to a modular planar connector, and more particularly to a modular planar connector for solid oxide fuel cells. The present disclosure also relates to a solid oxide fuel cell including a modular planar connection device.

A fuel cell is a device that converts the chemical energy from a fuel into electricity by the chemical reaction of positively charged hydrogen ions with oxygen or other oxidants. The fuel cell can continuously produce electric power as long as the fuel and oxygen or air can be continuously supplied. In particular, for example, the planar solid oxide fuel cell disclosed in Patent Document 1 has advantages of durability stability and low manufacturing cost, and a plurality of planar solid oxide fuel cells are stacked and electrically connected in series. It is more common in a variety of applications as it can produce a high voltage by connecting to.

European Patent Application Publication No. 3010076

However, in the conventional stack of planar solid oxide fuel cells, the deformation of the sealing material used for stacking the planar solid oxide fuel cells may affect the flow of the fluid fuel, or the sealing material may contact the fluid fuel. The output of the sealing material may react with the fluid fuel, or the sealing material may dissolve into the fluid fuel, which may adversely affect the output efficiency and stability. It is also desirable in the art to provide a solid oxide fuel cell with improved power density, fuel utilization and power efficiency.

Accordingly, it is an object of the present disclosure to provide a solid oxide fuel cell that overcomes the drawbacks of conventional planar solid oxide fuel cells and improves power density, fuel utilization, power efficiency and heat exchange effects.

A first aspect of the present disclosure includes a pair of flat cell units each including an anode web, a cathode web, and a flat cell body sandwiched between the anode web and the cathode web. Provided is a modularized planar coupling device. The modularized plane connection device is composed of a plane connection body, a pair of upper shield plates, and a pair of lower shield plates.

The plane connection body includes an upper main surface, a lower main surface, a right side surface, and a left side surface.

The upper main surface has a right edge region, a left edge region, an upper main region, a first injection region for an oxygen-containing fluid, a first discharge region for an oxygen-containing fluid, and a plurality of grooved flows. Including the road. The left edge region is arranged on the opposite side of the right edge region in the vertical direction. The upper main region is arranged between the right edge region and the left edge region so as to overlap under the cathode web of the planar cell unit above. The first implantation region is arranged between the right edge region and the upper main region, and has a front boundary wall surface and a rear boundary wall surface that are laterally separated from each other. , A first injection recessed region that is recessed downwardly and inwardly from the upper main surface is formed. The first discharge area is arranged between the left edge area and the upper main area, and includes a front boundary wall surface and a rear boundary wall surface that are separated from each other in the lateral direction. A first discharge recessed region is formed at the bottom, which is recessed inward from the upper main surface. The grooved flow path is formed in the upper main region of the upper main surface, passes through the first injection region, and terminates at a plurality of first injection ports, and It further passes through the discharge area and terminates in a plurality of first discharge ports.

The lower main surface has a front edge region, a rear edge region, a lower main region, a second injection region for fuel fluid, a second discharge region for fuel fluid, and a plurality of grooved flows. And a road. The rear edge region is arranged on the opposite side of the front edge region in the lateral direction. The lower main region is arranged between the front edge region and the rear edge region so as to overlap with the anode web of the planar cell unit below. The second implantation region is disposed between the front edge region and the lower main region, and includes a right boundary wall surface and a left boundary wall surface that are separated from each other in the vertical direction. Thus, a second injection recess area is formed which is recessed upward and inward from the lower main surface. The second discharge area is disposed between the rear edge area and the lower main area, and includes a right boundary wall surface and a left boundary wall surface that are separated from each other in the vertical direction. Thus, a second discharge recessed region is formed which is recessed upward and inward from the lower main surface. The grooved flow channel is formed in the lower main region of the lower main surface, passes through the second injection region, and terminates at a plurality of second injection ports, and It further passes through the discharge area and terminates in a plurality of second discharge ports.

The right edge region has a first introduction slot extending from the upper main surface to the lower main surface so as to be in fluid communication with the first inlet.

The left edge region has a first outflow slot extending from the upper major surface to the lower major surface so as to be in fluid communication with the first outlet.

The right side surface is connected to the upper main surface and the lower main surface, and extends leftward and inward, and along the lateral direction, a first front end surface and a first rear end surface. And includes a right side slot in fluid communication with the first inlet slot.

The left side surface is connected to the upper main surface and the lower main surface, and extends rightward and inward, and along the lateral direction, a second front end surface and a second rear end surface. A left side slot that terminates in and is in fluid communication with the first outflow slot. The pair of upper shielding plates are disposed between the front boundary wall surface and the rear boundary wall surface of the first injection area, and the front boundary wall surface and the rear boundary wall surface of the first discharge area. It is configured to fit between and.

The pair of lower shielding plates are provided between the right boundary wall surface and the left boundary wall surface of the second injection area, and the right boundary wall surface and the left boundary wall surface of the second discharge area. It is configured to fit between and.

A second aspect of the present disclosure is to provide an upper and lower modularized planar connecting device, a flat cell unit, a first upper auxiliary seal member, a first lower auxiliary seal member, a flat cell unit, and a first upper cell unit. Provided is a solid oxide fuel cell including an auxiliary seal member and a first lower auxiliary seal member.

Each of the upper and lower modularized plane coupling devices is the modularized plane coupling device described above.

The planar cell unit is sandwiched between the upper and lower modularized planar connecting devices 2 and includes a planar cell member, an anode member, and a cathode member.

The plane cell member includes a plane cell body and a cell body supporting frame. The plane cell body is interposed between the lower main region of the lower main surface of the upper modular flat surface connecting device and the upper main region of the upper main surface of the lower modular flat surface connecting device. There is. The cell body support frame is arranged so as to surround and surround the periphery of the planar cell body, and has an upper front support region, an upper rear support region, a lower right support region, and a lower left support region. The upper front support region and the upper rear support region are on opposite sides in the lateral direction, and are respectively the second injection region and the second injection region of the lower main surface of the upper modularized plane connection device. Paired with the discharge area. The lower right support region and the lower left support region are opposite to each other in the vertical direction, and are respectively the first injection region and the first injection region of the upper main surface of the lower modularized plane connecting device. Pair with the discharge area.

The anode member includes an anode web and an anode frame. The anode web is sandwiched between the planar cell body and the lower main area of the lower main surface of the upper modularized planar connector. The anode frame, are arranged so as to support with surrounding the periphery of the anode web, and a pre-anode frame region and the rear anode frame areas from one another on the opposite side in the lateral direction, the front anode frame The region and the rear anode frame region are respectively paired with the second injection region and the second discharge region of the lower major surface of the upper modularized planar connector.

The cathode member includes a cathode web and a cathode frame. The cathode web is sandwiched between the planar cell body and the upper main region of the upper main surface of the lower modular planar connector. The cathode frames are arranged so as to support with surrounding the periphery of the cathode web, and a right cathode frame region and the left cathode frame areas from one another on the opposite side in the longitudinal direction, the right cathode frame A region and the left cathode frame region are respectively paired with the first injection region and the first discharge region of the upper main surface of the lower modular planar connector.

The first on the auxiliary sealing member, one of of said front anode frame region and the rear anode frame region of the anode frame, the second in the lower major surface of the upper modular planar coupling device Located between the infusion region and the corresponding one of the second evacuation regions to form a fluid tight seal therebetween.

It said first lower auxiliary sealing member, wherein the right cathode frame region of the cathode frame and the one of said left cathode frame region, said on the the main surface first of the lower modular planar coupling device Located between the injection region and the corresponding one of the first discharge regions to form a fluid tight seal therebetween.

According to the above configuration, in the modular flat surface connecting device of the present invention, the upper shield plate is provided between the front boundary wall surface and the rear boundary wall surface of the first injection region and in front of the first discharge region. The lower shield plate is configured to fit between the boundary wall surface and the rear boundary wall surface, respectively, and the lower shield plate is provided between the right boundary wall surface and the left boundary wall surface of the second injection region and the first boundary area. It is configured to fit between the right boundary wall surface and the left boundary wall surface of the two discharge areas, respectively.

Solid oxide fuel cell comprising a modular planar coupling device, a portion of the grooved channel in the first implant region and the first discharge region, right cathode frame region and the left cathode frame of the cathode frame by the upper shielding plate together are isolated from the region, a portion of the grooved channel in the second injection region and the second discharge region is isolated from the anode frame area after the previous anode frame area of the anode frame by the lower shielding plate .. Thereby, the sealing effect between the cathode frame and the upper main surface of the modular planar connecting device and the sealing effect between the anode frame and the lower main surface of the modular planar connecting device can be enhanced. The drawbacks of can be avoided.

Also, the right side slot and the left side slot are respectively formed on the right side and the left side of the planar connection body, and are in fluid communication with the first introduction slot and the first outflow slot, so that the heat exchange effect of the solid oxide fuel cell is improved. Can be increased.

Other features and advantages of the present invention will be apparent from the following detailed description of embodiments with reference to the accompanying drawings.
FIG. 3 is a perspective exploded view of the first embodiment of the modularized plane coupling device according to the present disclosure. It is a perspective exploded view of the 1st Embodiment of the modularization plane connection device pinched between a pair of plane cell units. It is a schematic top view of 1st Embodiment of a modularization plane connection device. It is a schematic bottom view of 1st Embodiment of a modularization plane connection device. FIG. 8 is a perspective exploded view of a second embodiment of a modularized planar coupling device according to the present disclosure. It is a perspective exploded view of a 2nd embodiment of a modularization plane connection device pinched between a pair of plane cell units. It is a schematic top view of 2nd Embodiment of a modularization plane connection device. It is a schematic bottom view of 2nd Embodiment of a modularization plane connection device. 1 is a perspective view of an embodiment of a solid oxide fuel cell according to the present disclosure. FIG. 3 is a perspective exploded view of an embodiment of a solid oxide fuel cell. FIG. 10 is a schematic cross-sectional view of an embodiment of the solid oxide fuel cell taken along line XI-XI of FIG. 9. FIG. 10 is a schematic cross-sectional view of the embodiment of the solid oxide fuel cell taken along the line XII-XII of FIG. 9.

Before describing the present disclosure in more detail, where considered appropriate, the symbols or tail portions of the symbols are used repeatedly between the drawings to indicate corresponding or similar elements that may have similar characteristics. Please note that.

With reference to FIGS. 1 to 4, an embodiment of a modularized planar coupling device 2 according to the present disclosure is shown sandwiched between a pair of planar cell units 3. Each of the planar cell units 3 includes an anode web 34, a cathode web 35, and a planar cell body 33 sandwiched between the anode web 34 and the cathode web 35.

The modularized planar connecting device 2 is shown to include a planar connecting body 21, a pair of upper shield plates 5, and a pair of lower shield plates 4. The plane connection main body 21, the upper shield plate 5, and the lower shield plate 4 are made of stainless steel such as SUS430, SUS431, SUS441, and Crofer (registered trademark) 22. In the first embodiment, the planar connection body 21, the upper shield plate 5, and the lower shield plate 4 are formed separately. Also, they can be formed as an integral structure.

The plane connection body 21 includes an upper main surface 25, a lower main surface 24, a right side surface 26, and a left side surface 27.

The upper main surface 25 has a right edge region 251, a left edge region 252, an upper main region 253, a first injection region 254 for an oxygen-containing fluid, and a first discharge region 255 for an oxygen-containing fluid. A plurality of grooved channels 256. The left edge region 252 is arranged on the opposite side of the right edge region 251 in the vertical direction A. The upper main region 253 is arranged between the right edge region 251 and the left edge region 252, and is configured to overlap under the cathode web 35 of the upper planar cell unit 3. The first implantation region 254 is arranged between the right edge region 251 and the upper main region 253, and includes a front boundary wall surface 2542 and a rear boundary wall surface 2543 which are separated from each other in the lateral direction B. Thus, a first injection recess area 2541 recessed downward and inward from the upper main surface 25 is formed. The first discharge area 255 is disposed between the left edge area 252 and the upper main area 253, and includes a front boundary wall surface 2552 and a rear boundary wall surface 2553 which are separated from each other in the lateral direction B. Thus, a first discharge recess area 2551 which is recessed inward from the upper main surface 25 is formed. The grooved channel 256 is formed in the upper main region 253 of the upper main surface 25, passes through the first injection region 254, and terminates at the plurality of first injection ports 2561. It further passes through the discharge area 255 and terminates in a plurality of first discharge ports 2562. In the upper main area 253 of the upper main surface 25, a plurality of auxiliary flow paths 257 are formed so as to cross the grooved flow paths 246 in the upper main area 253 of the upper main surface 25 so as to form an array of the upper protrusions 258. Has been done. Further, the right edge region 251 has a first introduction slot 2511 extending from the upper main surface 25 to the lower main surface 24 so as to be in fluid communication with the first injection port 2561. The left edge region 252 has a first outflow slot 2522 extending from the upper major surface 25 to the lower major surface 24 for fluid communication with the first outlet 2562.

The lower main surface 24 has a front edge region 241, a rear edge region 242, a lower main region 243, a second injection region 244 for fuel fluid, a second discharge region 245 for fuel fluid, And a plurality of grooved channels 246. The rear edge area 242 is arranged on the opposite side of the front edge area 241 in the lateral direction B. The lower main region 243 is arranged between the front edge region 241 and the rear edge region 242 so as to overlap with the anode web 34 of the lower planar cell unit 3. The second implantation region 244 is arranged between the front edge region 241 and the lower main region 243, and includes a right boundary wall surface 2442 and a left boundary wall surface 2443 which are separated from each other in the vertical direction A. As described above, a second injection recess area 2441 that is recessed upward and inward from the lower main surface 24 is formed. The second discharge area 245 is disposed between the rear edge area 242 and the lower main area 243, and includes a right boundary wall surface 2452 and a left boundary wall surface 2453 which are separated from each other in the vertical direction A. As described above, a second discharge recessed area 2451 that is recessed upward and inward from the lower main surface 24 is formed. The plurality of grooved channels 246 are formed in the lower main region 243 of the lower main surface 24, pass through the second injection region 244, and terminate at the plurality of second injection ports 2461, and It further passes through the second discharge area 245 and terminates at a plurality of second discharge ports 2462. In a particular embodiment, the cross-section of the grooved channel 246 at the juncture of the lower major surface 24 between the lower major region 243 and the second injection region 244 is a lower major region 243 of the lower major surface 24. Is larger than the cross section of the grooved flow path 246 at the connection point between the second discharge area 245 and the second discharge area 245. A plurality of auxiliary flow channels 247 are further formed in the lower main region 243 of the lower main surface 24 so as to cross the grooved flow channels 246 in the lower main region 243 of the lower main surface 24 so as to form an array of the lower protrusions 248. Has been done. Further, the front edge region 241 has a second introduction slot 2411 extending from the lower main surface 24 to the upper main surface 25 so as to be in fluid communication with the second inlet 2461. The trailing edge region 242 has a second outflow slot 2421 extending from the lower major surface 24 to the upper major surface 25 for fluid communication with the second outlet 2462.

The right side surface 26 is connected to the upper main surface 25 and the lower main surface 24 and includes a right side surface slot 261, the right side surface slot 261 facing left and inward so as to be in fluid communication with the first introduction slot 2511. And extends in the lateral direction B and terminates at a first front end face 262 and a first rear end face 263.

The left side surface 27 is connected to the upper main surface 25 and the lower main surface 24 and includes a left side surface slot 271, the left side surface slot 271 facing right and inward so as to be in fluid communication with the first outflow slot 2522. And extends in the lateral direction B and terminates in a second front end surface 272 and a second rear end surface 273.

The upper shielding plate 5 is detachably attached between the front boundary wall surface 2542 and the rear boundary wall surface 2543 of the first injection area 254 and between the front boundary wall surface 2552 and the rear boundary wall surface 2552 of the first discharge area 255. Each of them is configured to fit with the boundary wall surface 2553. The upper shield plate 5 is flush with the right edge region 251 and the left edge region 252 of the upper main surface 25.

The lower shielding plate 4 is detachably attached between the right boundary wall surface 2442 and the left boundary wall surface 2443 of the second injection area 244 and the right boundary wall surface 2452 and the left surface of the second discharge area 245. It is configured to fit between the boundary wall surface 2453 and the boundary wall surface 2453. The lower shield plate 4 is flush with the front edge region 241 and the rear edge region 242 of the lower main surface 24.

With reference to Drawing 5-Drawing 8, the 2nd embodiment of modularized plane connection device 2 shown in this indication is shown sandwiched between a pair of plane cell units. Each of the planar cell units 3 includes an anode web 34, a cathode web 35, and a planar cell body 33 sandwiched between the anode web 34 and the cathode web 35.

The second embodiment of the modularized plane coupling device 2 has the same structure as the first embodiment of the modularized plane coupling device 2 except for the following contents.

The first front end surface 262 and the first rear end surface 263 of each right side surface slot 261 extend to connect to the upper main surface 25 and the lower main surface 24. In the right side surface slot 261, the first front end surface 262 and the first rear end surface 263 are flush with the front slot end surface and the rear slot end surface of the first introduction slot 2511, respectively, in order to form the right cutout portion. To extend along the transverse direction B.

The second front end surface 272 and the second rear end surface 273 of each left side slot 271 extend so as to connect to the upper main surface 25 and the lower main surface 24. The left side surface slot 271 has a second front end surface 272 and a second rear end surface 273 which are flush with the front slot end surface and the rear slot end surface of the first outflow slot 2522, respectively, in order to form a left cutout. To extend along the transverse direction B.

With reference to FIGS. 9 to 12, a solid oxide fuel cell 1 according to an embodiment of the present disclosure has a planar sandwiched between an upper and lower modularized planar coupling device 2 and an upper and lower modularized planar coupling device 2. It includes the cell unit 3, a first upper auxiliary seal member, and a first lower auxiliary seal member.

Each upper and lower modularized plane connecting device 2 is the above-mentioned modularized plane connecting device 2. Specifically, the second embodiment of the modularized planar coupling device 2 is used in the embodiment of the solid oxide fuel cell 1. The plane cell unit 3 includes a plane cell member 31, an anode member 38, and a cathode member 39. The plane cell member 31 includes a plane cell body 33 and a cell body supporting frame 32. The anode member 38 includes an anode web 34 and an anode frame 36. The cathode member 39 includes a cathode web 35 and a cathode frame 37.

The plane cell body 33 is interposed between the lower main region 243 of the lower main surface 24 of the upper modularized plane connecting device 2 and the upper main region 253 of the upper main surface 25 of the lower modularized plane connecting device 2. There is. The cell body support frame 32 is arranged so as to surround and surround the periphery of the planar cell body 33, and also includes an upper front support region 321, an upper rear support region 322, a lower right support region 323, and a lower left support region. 324 and. The upper front support region 321 and the upper rear support region 322 are on the opposite sides in the lateral direction B, and the second injection region 244 and the second injection region 244 of the lower main surface 24 of the modularized planar coupling device 2 are respectively above. It forms a pair with the discharge area 245. The lower right support region 323 and the lower left support region 324 are on opposite sides in the longitudinal direction A, and are respectively the first injection region 254 and the first injection region 254 of the upper main surface 25 of the lower modularized planar coupling device 2. It is paired with the discharge area 255.

The anode web 34 is sandwiched between the planar cell body 33 and the lower main region 243 of the lower main surface 24 of the modularized planar connecting device 2 above. The anode frame 36 are arranged so as to support with surrounding the periphery of the anode web 34, and a rear anode frame region 362 before the anode frame area 361 on the opposite sides in the transverse direction B, before the anode The frame area 361 and the rear anode frame area 362 are respectively paired with the second injection area 244 and the second discharge area 245 of the lower main surface 24 of the modularized planar connection device 2 above.

The cathode web 35 is sandwiched between the flat cell body 33 and the upper main region 253 of the upper main surface 25 of the lower modularized planar connecting device 2. The cathode frame 37 are arranged so as to support with surrounding the periphery of the cathode web 35, and a right cathode frame area 371 located opposite one another in the longitudinal direction A and the left cathode frame region 372, the right cathode The frame region 371 and the left cathode frame region 372 are paired with the first injection region 254 and the first discharge region 255 of the upper main surface 25 of the lower modularized planar coupling device 2, respectively.

The first upper auxiliary seal member is one of the front anode frame region 361 and the rear anode frame region 362 of the anode frame 36, and the second injection region on the lower main surface 24 of the upper modular planar connecting device 2. 244 and a corresponding one of the second drainage areas 245 to form a fluid tight seal therebetween. The solid oxide fuel cell 1 has the other of the front anode frame region 361 and the rear anode frame region 362 of the anode frame 36, and the second injection region 244 in the lower main surface 24 of the upper modular planar connecting device 2. And a second upper auxiliary seal member disposed between and corresponding to one of the second drain areas 245 to form a fluid tight seal therebetween. Further, the solid oxide fuel cell 1 includes a first upper main sealing member and a second upper main sealing member. The first upper main seal member is one of the right anode frame region 363 and the left anode frame region 364 of the anode frame 36 and the lower main region 243 of the lower main surface 24 of the upper modularized planar coupling device 2. Located between the corresponding one of the right and left portions to form a fluid tight seal therebetween. The second upper main seal member is formed of the other of the right anode frame region 363 and the left anode frame region 364 of the anode frame 36 and the lower main region 243 of the lower main surface 24 of the upper modularized planar connecting device 2. Located between the corresponding one of the right and left portions to form a fluid tight seal therebetween. The first upper auxiliary seal member, the second upper auxiliary seal member, the first upper main seal member, and the second upper main seal member are selected from the group consisting of glass ceramics, mica, solder alloys, and combinations thereof. Separately composed of selected materials. In this embodiment, the first upper auxiliary seal member, the second upper auxiliary seal member, the first upper main seal member, and the second upper main seal member are integrally formed with the anode frame 36. .. In other words, the anode frame 36 in this embodiment is made of a material selected from the group consisting of glass ceramics, mica, solder alloys, and combinations thereof, and the upper surface thereof is the first upper auxiliary seal member. It is used as a combination of the second upper auxiliary seal member, the first upper main seal member and the second upper main seal member.

The first lower auxiliary seal member is one of the right cathode frame region 371 and the left cathode frame region 372 of the cathode frame 37, and the first injection region in the upper main surface 25 of the lower modular planar connecting device 2. 254 and a corresponding one of the first drainage areas 255 to form a fluid tight seal therebetween. Solid oxide fuel cell 1, and the other of the right cathode frame area 371 and the left cathode frame region 372 of the cathode frame 37, first in upper major surface 25 of the modular flat connecting device 2 under injection region 254 And a second lower auxiliary seal member disposed between and corresponding to one of the first discharge areas 255 to form a fluid tight seal therebetween. Further, the solid oxide fuel cell 1 includes a first lower main sealing member and a second lower main sealing member. The first lower main seal member is one of the front cathode frame region 373 and the rear cathode frame region 374 of the cathode frame 37, and the upper main region 253 of the upper main surface 25 of the lower modularized planar connecting device 2. Located between the corresponding one of the front and rear portions to form a fluid tight seal therebetween. The second lower main seal member is formed of the other one of the front cathode frame region 373 and the rear cathode frame region 374 of the cathode frame 37 and the upper main region 253 of the upper main surface 25 of the lower modular flat surface connecting device 2. Located between the corresponding one of the front and rear portions to form a fluid tight seal therebetween. The first lower auxiliary seal member, the second lower auxiliary seal member, the first lower main seal member, and the second lower main seal member are selected from the group consisting of glass ceramics, mica, solder alloys, and combinations thereof. Separately composed of selected materials. In this embodiment, the first lower auxiliary seal member, the second lower auxiliary seal member, the first lower main seal member, and the second lower main seal member are integrally formed with the cathode frame 37. .. In other words, the cathode frame 37 in this embodiment is made of a material selected from the group consisting of glass ceramics, mica, solder alloys, and combinations thereof, and its lower surface is the first lower auxiliary seal member. It is used as a combination of the second lower auxiliary seal member, the first lower main seal member and the second lower main seal member.

As described above, in the modularized planar coupling device 2 of the present disclosure, the upper shielding plate 5 includes the first injection region 254 between the front boundary wall surface 2542 and the rear boundary wall surface 2543 and the first discharge area. It is configured to fit between the front boundary wall surface 2552 and the rear boundary wall surface 2553 of the region 255, respectively. Therefore, a part of the grooved channel 256 in the first injection region 254 and the first discharge region 255 is isolated from the right cathode frame region 371 and the left cathode frame region 372 of the cathode frame 37 by the upper shield plate 5. There is. As a result, the rear cathode frame region 374 and the front cathode frame region 373 of the cathode frame 37 is sealed to the front and rear portions in the main region 253 on the upper major surface 25 of the modular planar coupling device 2, and a cathode frame 37 Both the right cathode frame region 371 and the left cathode frame region 372 are also sealed to the upper shield plate 5, which can enhance the sealing effect between the cathode frame 37 and the upper main surface 25 of the modular planar connecting device 2. And, the aforementioned drawbacks of the prior art can be avoided.

Similarly, as described above, the lower shield plate 4 has a lower boundary plate surface 2452 between the right boundary wall surface 2442 and the left boundary wall surface 2443 of the second injection area 244 and a right boundary wall surface 2452 of the second discharge area 245. And the left boundary wall surface 2453, respectively. Therefore, a part of the grooved channel 246 in the second injection region 244 and the second discharge region 245 is separated from the front anode frame region 362 of the front anode frame region 361 of the anode frame 36 by the lower shield plate 4. There is. As a result, the right anode frame area 363 and the left anode frame region 364 of the anode frame 36 is sealed to the left and right portions of the lower main region 243 of the lower major surface 24 of the modular planar coupling device 2, and the anode frame 36 Both the front anode frame region 361 and the rear anode frame region 362 are also sealed to the lower shield plate 4, thereby enhancing the sealing effect between the anode frame 36 and the lower main surface 24 of the modular planar connecting device 2. ..

In addition, the right side slot 261 and the left side slot 271 are formed on the right side surface 26 and the left side surface 27 of the planar connection body 21, respectively, and are in fluid communication with the first introduction slot 2511 and the first outflow slot 2522, so that solid oxidation is performed. The heat exchange effect of the fuel cell 1 can be enhanced.

In the foregoing, for the purposes of explanation, numerous specific details have been set forth in order to provide a thorough understanding of the invention. However, it will be apparent to one of ordinary skill in the art that one or more other embodiments may be practiced without providing specific details. Further, in the description of “one embodiment” and “one embodiment” in the present specification, all the description accompanied by the display of the ordinal number is included in the specific implementation of the present invention having a specific aspect, structure, and feature. It should be understood that this can be done. Furthermore, in the present description, multiple variations are sometimes incorporated into a single embodiment, drawing, or description thereof, which is to streamline the description and to illustrate the multifaceted nature of the invention. It is intended to be understood.

Although the preferred embodiments and modifications of the present invention have been described above, the present invention is not limited to these, and all modifications and equivalents can be made as various configurations included within the spirit and scope of the broadest interpretation. Configuration shall be included.

INDUSTRIAL APPLICABILITY The modular planar connecting device and the solid oxide fuel cell including the same according to the present invention overcome the drawbacks of the conventional planar solid oxide fuel cells and improve the power density, the fuel utilization rate, the power efficiency and the heat exchange effect. A solid oxide fuel cell can be provided.

DESCRIPTION OF SYMBOLS 1 Solid oxide fuel cell 2 Modular plane connecting device 21 Planar connecting body 24 Lower main surface 241 Front edge area 2411 Second introduction slot 242 Rear edge area 2421 Second outflow slot 243 Lower main area 244 Second Injection area 2441 Second injection recess area 2442 Right boundary wall surface 2443 Left boundary wall surface 245 Second discharge area 2451 Second discharge recess area 2452 Right boundary wall surface 2453 Left boundary wall surface 246 Grooved channel 2461 Second Inlet port 2462 second outlet port 247 auxiliary flow path 248 lower protrusion 25 upper main surface 251 right edge region 2511 first introduction slot 252 left edge region 2522 first outflow slot 253 upper main region 254 first injection region 2541 first injection recessed area 2542 front boundary wall surface 2543 rear boundary wall surface 255 first discharge area 2551 first discharge recessed area 2552 front boundary wall surface 2553 rear boundary wall surface 256 grooved channel 2561 first note Inlet 2562 First outlet 257 Auxiliary flow path 258 Upper protrusion 26 Right side face 261 Right side face slot 262 First front end face 263 First rear end face 27 Left side face 271 Left side face slot 272 Second front end face 273 Second Rear end face 3 Flat cell unit 31 Flat cell member 32 Cell body support frame 321 Upper front support area 322 Upper rear support area 323 Lower right support area 324 Lower left support area 33 Flat cell body 34 Anode web 35 Cathode web 36 Anode frame 361 Front Anode frame region 362 Rear anode frame region 37 Cathode frame 371 Right cathode frame region 372 Left cathode frame region 38 Anode member 39 Cathode member 4 Lower shield plate 5 Upper shield plate A Vertical direction B Horizontal direction

Claims (11)

Each is a modularized planar coupling device sandwiched between a pair of planar cell units including an anode web, a cathode web, and a planar cell body sandwiched between the anode web and the cathode web. ,
It is composed of a plane connection body, a pair of upper shield plates and a pair of lower shield plates,
The plane connecting body includes an upper main surface and a lower main surface,
The upper main surface is
Right edge region,
A left edge region arranged on the opposite side of the right edge region in the vertical direction,
An upper main region arranged between the right edge region and the left edge region so as to overlap under the cathode web of the upper planar cell unit,
Located below the upper main surface so as to form a front boundary wall surface and a rear boundary wall surface which are arranged between the right edge area and the upper main area and are laterally spaced from each other. A first injection region for an oxygen-containing fluid, wherein a first injection recess area is formed that is recessed inward;
Downward from the upper main surface so that a front boundary wall surface and a rear boundary wall surface that are arranged between the left edge area and the upper main area and are laterally spaced from each other are configured. And a first drainage region for the oxygen-containing fluid, wherein a first drainage recess region is formed that is recessed inward,
Formed in the upper main region of the upper main surface, passing through the first injection region and terminating at a plurality of first injection ports, and further passing through the first discharge region. A plurality of grooved channels terminating in a plurality of first outlets,
The lower main surface is
The front edge area,
A rear edge region arranged on the opposite side of the front edge region in the lateral direction,
A lower main region arranged between the front edge region and the rear edge region so as to overlap the anode web of the planar cell unit below,
From the lower main surface, the right boundary wall surface and the left boundary wall surface are arranged between the front edge area and the lower main area and are separated from each other in the longitudinal direction. A second injection region for the fuel fluid, wherein a second injection recess area is formed that is upwardly and inwardly recessed;
From the lower main surface, the right boundary wall surface and the left boundary wall surface, which are arranged between the rear edge area and the lower main area and are separated from each other in the longitudinal direction, are configured. A second discharge region for the fuel fluid, wherein a second discharge recess area is formed which is recessed upwards and inwardly;
Formed in the lower main region of the lower main surface, passing through the second injection region and terminating at a plurality of second inlets, and further passing through the second discharge region. A plurality of grooved channels terminating in a plurality of second outlets,
The right edge region has a first introduction slot extending from the upper main surface to the lower main surface so as to be in fluid communication with the first inlet.
The left edge region has a first outflow slot extending from the upper major surface to the lower major surface so as to be in fluid communication with the first outlet.
The plane connection body further includes
A right side surface including a right side surface slot connected to the upper main surface and the lower main surface, the right side surface slot extending leftward and inward so as to be in fluid communication with the first introduction slot. And a right side surface extending along the lateral direction and terminating at a first front end surface and a first rear end surface, and
A left side surface that is connected to the upper main surface and the lower main surface and includes a left side surface slot, the left side surface slot facing right and inward so as to be in fluid communication with the first outflow slot. A left side surface that extends along the lateral direction and terminates at a second front end surface and a second rear end surface while extending, and the pair of upper shielding plates are provided in the first injection region. Between the front boundary wall surface and the rear boundary wall surface, and between the front boundary wall surface and the rear boundary wall surface of the first discharge region, respectively, is configured to fit,
The pair of lower shield plates are disposed between the right boundary wall surface and the left boundary wall surface in the second injection area, and the right boundary wall surface and the left boundary wall surface in the second discharge area. A modularized plane connecting device, characterized in that it is configured to fit between and. The modularization according to claim 1, wherein the first front end surface and the first rear end surface of the right side slot extend so as to be connected to the upper main surface and the lower main surface. Planar connection device. The first front end surface and the second rear end surface of the left side slot are extended so as to be connected to the upper main surface and the lower main surface. A modularized planar coupling device as described. In order to form the right cutout portion of the right side slot, the first front end surface and the first rear end surface are flush with the front slot end surface and the rear slot end surface of the first introduction slot, respectively. The modularized plane connection device according to claim 2 or 3, wherein the module is extended along the lateral direction. In the left side slot, the second front end face and the second rear end face are flush with the front slot end face and the rear slot end face of the first outflow slot, respectively, in order to form a left notch. The modularized plane connecting device according to claim 3 or 4, wherein the module is extended along the lateral direction so as to be. Upper and lower modularized plane coupling devices, each of which is the modularized plane coupling device according to any one of claims 1 to 5,
A planar cell unit sandwiched between the upper and lower modularized plane connecting devices;
A first upper auxiliary seal member,
And a first lower auxiliary seal member,
The planar cell unit includes a planar cell member, an anode member and a cathode member,
The flat cell member,
A planar cell body interposed between the lower main region of the lower main surface of the upper modularized plane connecting device and the upper main region of the upper main surface of the lower modularized plane connecting device;
A cell body support frame arranged so as to support while surrounding the periphery of the planar cell body,
The cell body support frame,
An upper front support region and an upper rear face which are on opposite sides in the lateral direction and which respectively pair with the second injection region and the second discharge region of the lower main surface of the upper modularized planar coupling device. Support area, and
A lower right support region and a lower left, which are opposite to each other in the longitudinal direction and which are respectively paired with the first injection region and the first discharge region of the upper main surface of the lower modularized plane connecting device. Having a support area,
The anode member is
An anode web sandwiched between the flat cell body and the lower main region of the lower main surface of the upper modular planar connecting device;
Are arranged so as to support with surrounding the periphery of the anode web, and a rear anode frame region and the anode frame region before the opposite sides in the transverse direction, the rear anode and the previous anode frame region A frame region each including an anode frame paired with the second injection region and the second discharge region of the lower major surface of the upper modular planar connection device;
The cathode member is
A cathode web sandwiched between the planar cell body and the upper main region of the upper main surface of the lower modular planar connector,
It is arranged so as to support with surrounding the periphery of the cathode web, and a right cathode frame region and the left cathode frame area located opposite one another in the longitudinal direction, the left cathode and said right cathode frame area A frame region each including a cathode frame paired with the first injection region and the first discharge region of the upper major surface of the lower modular planar connection device;
The first on the auxiliary sealing member, one of of said front anode frame region and the rear anode frame region of the anode frame, the second in the lower major surface of the upper modular planar coupling device Disposed between an injection region and a corresponding one of the second discharge regions to form a fluid tight seal therebetween;
It said first lower auxiliary sealing member, wherein the right cathode frame region of the cathode frame and the one of said left cathode frame region, said on the the main surface first of the lower modular planar coupling device A solid oxide fuel cell, wherein the solid oxide fuel cell is positioned between an injection region and a corresponding one of the first discharge regions to form a fluid tight seal therebetween. And other of the front anode frame region and the rear anode frame region of the anode frame, it said in the lower major surface of the upper modular planar coupling device the second injection region and said second discharge region A second upper auxiliary seal member disposed between and corresponding to one of the two forming a fluid tight seal therebetween.
And other of the said right cathode frame region of the cathode frame left cathode frame region, said at the upper major surface of the lower modular planar coupling device first implant region and said first discharge region 7. A second lower auxiliary seal member disposed between and corresponding to one of the two to form a fluid-tight seal therebetween. Oxide fuel cell. The first upper auxiliary seal member is integrally formed with the anode frame, and the first lower auxiliary seal member is integrally formed with the cathode frame. The solid oxide fuel cell according to claim 6 or claim 7. The second upper auxiliary seal member is integrally formed with the anode frame, and the second lower auxiliary seal member is integrally formed with the cathode frame. solid oxide fuel cell according to 7. The first upper auxiliary seal member is made of a material selected from the group consisting of glass ceramic, mica, solder alloy, and combinations thereof, and the first lower auxiliary seal member is made of glass ceramic, mica, solder. The solid oxide fuel cell according to claim 8 or 9, wherein the solid oxide fuel cell is composed of a material selected from the group consisting of alloys and combinations thereof. The second upper auxiliary seal member is made of a material selected from the group consisting of glass ceramic, mica, solder alloy, and combinations thereof, and the second lower auxiliary seal member is made of glass ceramic, mica, solder. The solid oxide fuel cell according to claim 9, wherein the solid oxide fuel cell is made of a material selected from the group consisting of alloys and combinations thereof.

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