TWI666818B - Modular planar interconnect device for a solid oxide fuel cell and the solid oxide fuel cell containing the same - Google Patents

Abstract

A modular flat-type connection device suitable for a solid oxide fuel cell includes a flat-type connection body, a pair of upper shielding sheets, and a pair of lower shielding sheets. The flat-type connection body includes a right side surface and a left side surface. The right side includes a right slit to be in fluid communication with the introduction slit of the flat-type connection body. The left side includes a left slit to be in fluid communication with a discharge slit of the flat-type connection body.

Description

Modular flat-type connector for a solid oxide fuel cell Solid oxide fuel cell

The invention relates to a modular planar interconnect device, in particular to a modular planar interconnect device suitable for a solid oxide fuel cell (SOFC), and A solid oxide fuel cell containing the modular flat-type connection device.

A fuel cell reacts with positively charged hydrogen ions and oxygen (or other oxidants) to convert the chemical energy in the fuel into electricity, and can continue to generate electricity as long as the fuel and oxygen (or air) are continuously supplied, especially flat Type solid oxide fuel cells (planar SOFCs) can be easily connected in a stack to generate high power, and have the advantages of durable stability and low manufacturing costs, so they are favored in various application fields.

However, the existing stacked flat-type solid oxide fuel cells often affect the flow of the fuel fluid due to deformation of the sealing material required for the stacking, or the sealing material is liable to interact or dissolve due to contact with the fuel fluid, thereby affecting the SOFC Power generation efficiency and stability. In addition, the power density, fuel utilization rate, power generation efficiency and heat exchange effect of existing fuel cells also have room for improvement.

Therefore, an object of the present invention is to provide a modular flat-type connection device suitable for a solid oxide fuel cell, which can overcome the disadvantages of the foregoing prior art.

Therefore, the modular flat-type connection device of the present invention is sandwiched between a pair of flat-type battery cells, and each flat-type battery cell includes an anode web, a cathode web, and a sandwich between the flat battery cells. A flat cell body between the anode mesh and the cathode mesh. The modular flat-type connection device includes a flat interconnect body, a pair of upper shielding plates and a pair of lower shielding plates.

The flat-type connection body includes an upper major surface, a lower major surface, a right lateral surface, and a left lateral surface.

The upper main plane includes a right marginal region, a left marginal region, an upper main region, and a first inlet region suitable for an oxygen-containing fluid. region), a first outlet region suitable for the oxygen-containing fluid, and a plurality of grooved channels. The left edge region is opposite to the right edge region in a longitudinal direction. The upper main region is disposed between the right edge region and the left edge region, and is adapted to be positioned under the cathode grid of an upper flat battery cell. The first inlet area is disposed between the right edge area and the upper main area, and forms a first inlet depression area. The first inlet depression area is downward from the upper main plane and faces toward the upper main area. Recessed to form front boundary wall surfaces spaced from each other in a lateral direction surface) and rear boundary wall surface. The first exit area is disposed between the left edge area and the upper main area, and forms a first outlet depression area. The first exit depression area is downward and upward from the upper main plane. Recessed inside to form a front boundary wall surface and a rear boundary wall surface spaced from each other in the lateral direction. The channels are formed in the upper main area of the upper main plane, penetrate the first inlet area and stop at a plurality of first inlet ports, and further penetrate the first outlet area and stop at a plurality of first inlet ports. One outlet (first outlet ports).

The lower main plane includes a front marginal region, a rear marginal region, a lower main region, and a second inlet region suitable for a fuel fluid. A second outlet region and a plurality of channels suitable for the fuel fluid. The trailing edge region is opposite to the leading edge region in the lateral direction. The lower main region is disposed between the leading edge region and the trailing edge region, and is adapted to be positioned on an anode mesh of a flat battery cell below. The second inlet area is disposed between the leading edge area and the lower main area, and forms a second inlet depression area. The second inlet depression area is upward and inward from the lower main plane. Recessed to form a right boundary wall surface and a left boundary wall surface spaced from each other in the longitudinal direction. The second exit region is disposed between the trailing edge region and the lower main region, and forms a second exit recessed region. The second exit recessed region is recessed upward and inward from the lower main plane to form the second exit region. Right boundary wall surfaces and left boundary wall surfaces spaced from each other in the longitudinal direction. The channels are formed in the lower main area of the lower main plane, penetrate the second inlet area and stop at a plurality of second inlet ports, and further penetrate the second outlet area and stop at a plurality of second inlet ports. Second outlet (second outlet ports).

The right edge region has a first introduction slit extending from the upper main plane to the lower main plane to be in fluid communication with the first inlets.

The left edge region has a first discharge slit that extends from the upper main plane to the lower main plane to be in fluid communication with the first outlets.

The right side is connected to the upper main plane and the lower main plane. The right side includes a right slit that extends leftward and inwardly to be in fluid communication with the first introduction slit and in the lateral direction The upper end extends to a first front end surface and a first rear end surface.

The left side is connected to the upper main plane and the lower main plane. The left side includes a left slit that extends to the right and inwardly to be in fluid communication with the first discharge slit and in the lateral direction. The upper end extends to a second front end surface and a second rear end surface.

Each of the upper shielding sheets is suitably disposed between a front boundary wall surface and a rear boundary wall surface of the first entrance region and between a front boundary wall surface and a rear boundary wall surface of the first exit region.

The lower shielding sheets are respectively disposed between the right boundary wall surface and the left boundary wall surface of the second entrance region and between the right boundary wall surface and the left boundary wall surface of the second exit region.

Another object of the present invention is to provide a solid oxide fuel cell, which can overcome the disadvantages of the foregoing prior art.

Therefore, the solid oxide fuel cell of the present invention includes an upper modular flat-type connection device and a lower modular flat-type connection device, a planar cell unit, and an upper first auxiliary sealing member (upper first auxiliary seal member) and a lower first auxiliary seal member.

Each modular flat-type connection device is as described above.

The flat battery cell is sandwiched between the upper modular flat connection device and the lower modular flat connection device. The flat battery cell includes a planar cell member and an anode member. (anode member) and a cathode member.

The flat-type battery component includes a flat-type battery body and a cell-body support frame. The flat battery body is inserted between the lower main area of the lower main plane of the upper modular flat connection device and the upper main area of the upper main plane of the lower modular flat connection device. The battery body bracket is arranged around and supported on the periphery of the flat battery body. The battery body bracket has an upper front support region, an upper rear support region, and a lower right support region. right support region) and lower left support region. The upper front support area and the upper rear support area are arranged opposite to each other in the lateral direction, and each closely cooperates with the second inlet area and the second outlet area of the lower main plane of the upper modular flat-type connection device. The lower right support region and the lower left support region are arranged opposite to each other in the longitudinal direction, and each of them closely cooperates with the first inlet region and the first outlet region of the upper main plane of the lower modular flat-type connection device.

The anode component includes an anode mesh and an anode frame. The anode mesh is clamped between the flat battery body and the lower main area of the lower main plane of the upper modular flat connection device. The anode support is arranged around and supported on the periphery of the anode grid. The anode support has a front anode frame area. region) and a rear anode frame region that are oppositely disposed in the lateral direction, and are closely matched with the second inlet region and the second outlet region of the lower main plane of the upper modular flat-type connection device, respectively.

The cathode structure includes a cathode grid and a cathode frame. The cathode net is clamped between the flat battery body and the upper main area of the upper main plane of the lower modular flat connection device. The cathode support is arranged around and supported on the periphery of the cathode network. The cathode support has a right cathode frame region and a left cathode frame region which are oppositely arranged in the longitudinal direction. The first inlet area and the first outlet area of the upper main plane of the lower modular flat connection device are closely matched.

The upper first auxiliary sealing member is disposed at one of a front anode support area and a rear anode support area of the anode support and a second inlet area and a second outlet area of a lower main plane of the upper modular flat-type connection device. Between its counterparts to form a fluid seal there.

The lower first auxiliary sealing member is disposed in one of the right cathode bracket region and the left cathode bracket region of the cathode bracket and the first inlet region and the first outlet region of the upper main plane of the lower modular flat-type connection device. Between its counterparts to form a fluid seal there.

The effect of the present invention is that the modular flat-type connection device of the present invention can improve the maximum power density, fuel utilization rate, and power generation efficiency of a solid oxide fuel cell.

1‧‧‧ solid oxide fuel cell

2‧‧‧ Modular flat type connection device

21‧‧‧ Flat type connection body

24‧‧‧ lower main plane

241‧‧‧Leading edge area

2411‧‧‧Second introduction slit

242‧‧‧back edge area

2421‧‧‧Second discharge slit

243‧‧‧ Lower main area

244‧‧‧Second Entrance Area

2441‧‧‧Second entrance depression area

2442‧‧‧Right boundary wall

2443‧‧‧left boundary wall

245‧‧‧Second Exit Zone

2451‧‧‧Second Exit Depression Area

2452‧‧‧Right boundary wall

2453‧‧‧left boundary wall

246‧‧‧Slot

2461‧‧‧Second Import

2462‧‧‧Second exit

247‧‧‧Auxiliary runner

2562‧‧‧First Exit

257‧‧‧Auxiliary runner

258‧‧‧upward convex pillar array

26‧‧‧ right side

261‧‧‧Right slit

262‧‧‧first front face

263‧‧‧First rear face

27‧‧‧ Left side

271‧‧‧left slit

272‧‧‧Second front face

273‧‧‧Second rear face

3‧‧‧ flat battery unit

31‧‧‧ flat battery components

32‧‧‧Battery body bracket

321‧‧‧Up front support area

322‧‧‧Up and back support area

323‧‧‧Lower right support area

324‧‧‧Lower left support area

33‧‧‧ flat battery body

34‧‧‧Anode net

35‧‧‧ cathode net

248‧‧‧ down convex pillar array

25‧‧‧ Upper main plane

251‧‧‧Right margin

2511‧‧‧First introduction slit

252‧‧‧Left Margin

2522‧‧‧First discharge slit

253‧‧‧Upper main area

254‧‧‧First Entrance Zone

2541‧‧‧First entrance depression area

2542‧‧‧ Front boundary wall

2543‧‧‧ rear boundary wall

255‧‧‧Exit 1

2551‧‧‧The first exit depression area

2552‧‧‧ Front boundary wall

2553‧‧‧ rear boundary wall

256‧‧‧Slot

2561‧‧‧First Import

36‧‧‧Anode bracket

361‧‧‧ front anode bracket area

362‧‧‧ rear anode bracket area

363‧‧‧Right anode bracket area

364‧‧‧Left anode bracket area

37‧‧‧ cathode support

371‧‧‧Right cathode support area

372‧‧‧Left cathode bracket area

373‧‧‧ Front cathode support area

374‧‧‧ rear cathode support area

38‧‧‧Anode component

39‧‧‧ cathode structure

4‧‧‧ under the shield

5‧‧‧up shield

A‧‧‧Vertical orientation

B‧‧‧Horizontal orientation

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: [FIG. 1] is an exploded perspective view of a first embodiment of the modular flat-type connection device of the present invention; [Fig. 2] An exploded perspective view of the modular flat-type connection device of the first embodiment sandwiched between a pair of flat-type battery cells; [Fig. 3] is a modular flat-plate of the first embodiment A schematic plan view of a modular connection device; [FIG. 4] is a schematic bottom view of the modular flat type connection device of the first embodiment; [FIG. 5] is a second implementation of the modular flat type connection device of the present invention An exploded perspective view of the example; [Fig. 6] is an exploded perspective view of the modular flat-type connection device of the second embodiment sandwiched between a pair of flat-type battery cells; [Fig. 7] is the second A schematic top view of the modular flat-type connection device of the embodiment; [FIG. 8] is a schematic bottom view of the modular flat-type connection device of the second embodiment; [FIG. 9] is a solid oxide fuel cell of the present invention A perspective view of an embodiment; [FIG. 10 Is a perspective exploded view of the solid oxide fuel cell of this embodiment; [FIG. 11] is a schematic cross-sectional view taken along line XI-XI in FIG. 9; and [FIG. 12] is taken along FIG. 9 A schematic cross-sectional view taken along line XII-XII.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

Referring to FIG. 1 to FIG. 4, a first specific embodiment of a modular flat-type connection device 2 of the present invention is sandwiched between a pair of flat-type battery cells 3, and each flat-type battery cell 3 includes an anode mesh 34, A cathode network 35 and a flat battery body 33 sandwiched between the anode network 34 and the cathode network 35.

The modular flat connection device 2 includes a flat connection body 21, a pair of upper shielding sheets 5 and a pair of lower shielding sheets 4. The flat connection body 21, the upper shielding sheets 5 and the lower shielding sheets 4 are made of stainless steel, such as but not limited to SUS 430, SUS 431, SUS 441, Crofer® 22. In the first specific embodiment, the flat-type connection body 21, the upper shielding sheets 5 and the lower shielding sheets 4 are formed separately. Alternatively, they may be formed in a single-piece configuration.

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

The upper main plane 25 includes a right edge region 251, a left edge region 252, an upper main region 253, a first inlet region 254 suitable for an oxygen-containing fluid, and a first outlet region suitable for the oxygen-containing fluid. 255 and multiple slots 256. The left edge region 252 is opposite to the right edge region 251 in a longitudinal direction A. The upper main region 253 is disposed between the right edge region 251 and the left edge region 252 and is adapted to be positioned below the cathode grid 35 of one of the flat-type battery cells 3 above. The first inlet region 254 is disposed between the right edge region 251 and the upper main region 253, and forms a first inlet depression region 2541. The first inlet depression region 2541 is directed downward from the upper main plane 25 and toward the upper main region 25. The inner boundary is recessed to form a front boundary wall surface 2542 and a rear boundary wall surface 2543 spaced apart from each other in a lateral direction B. The first exit area 255 is set at Between the left edge region 252 and the upper main region 253, a first exit recessed region 2551 is formed. The first exit recessed region 2551 is recessed downwardly and inwardly from the upper main plane 25 to form the lateral The front boundary wall surface 2552 and the rear boundary wall surface 2553 spaced from each other in the direction B. The channels 256 are formed in the upper main region 253 of the upper main plane 25, penetrate the first inlet region 254 and stop at a plurality of first inlets 2561, and further penetrate the first outlet region 255 and stop at a plurality of The first exit is 2562. A plurality of auxiliary flow channels 257 are also formed in the upper main region 253 of the upper main plane 25, which are perpendicular to the channels 256 formed in the upper main region 253 of the upper main plane 25 to form an upper convex array 258 . In addition, the right edge region 251 has a first introduction slit 2511 extending from the upper main plane 25 to the lower main plane 24 to be in fluid communication with the first inlets 2561. The left edge region 252 has a first discharge slit 2522. The first discharge slit 2522 extends from the upper main plane 25 to the lower main plane 24 to be in fluid communication with the first outlets 2562.

The lower main plane 24 includes a leading edge region 241, a trailing edge region 242, a lower main region 243, a second inlet region 244 suitable for a fuel fluid, a second outlet region 245 suitable for the fuel fluid, and more. A channel 246. The trailing edge region 242 is opposite to the leading edge region 241 in the lateral direction B. The lower main region 243 is disposed between the leading edge region 241 and the trailing edge region 242 and is adapted to be positioned on the anode grid 34 of one of the flat-type battery cells 3 below. The second inlet area 244 is disposed between the leading edge area 241 and the lower main area 243, and forms a second inlet depression area 2441. The second inlet depression area 2441 is upward and inward from the lower main plane 24. Recessed to form a right boundary wall surface 2442 and a left boundary wall surface 2443 spaced apart from each other in the longitudinal direction A. The second exit region 245 is disposed between the trailing edge region 242 and the lower main region 243, and forms a second exit recessed region 2451. The second exit recessed region 2451 is upward and inward from the lower main plane 24. concave Recessed to form a right boundary wall surface 2452 and a left boundary wall surface 2453 spaced apart from each other in the longitudinal direction A. The channels 246 are formed in the lower main region 243 of the lower main plane 24, penetrate the second inlet region 244 and stop at a plurality of second inlets 2461, and further penetrate the second outlet region 245 and stop at a plurality of The second exit 2462. In a specific embodiment, the cross-sections of the channels 246 at the junction of the lower main region 243 and the second inlet region 244 of the lower main plane 24 are larger than the lower main region of the lower main plane 24 A cross section of the junction between 243 and the second exit region 245. A plurality of auxiliary flow channels 247 are also formed in the lower main region 243 of the lower main plane 24, which are perpendicular to the channels 246 formed in the lower main region 243 of the lower main plane 24 to form a lower convex array 248. In addition, the leading edge region 241 has a second introduction slit 2411 that extends from the lower main plane 24 to the upper main plane 25 to be in fluid communication with the second inlets 2461. The trailing edge region 242 has a second discharge slit 2421 extending from the lower main plane 24 to the upper main plane 25 to be in fluid communication with the second outlets 2462.

The right side surface 26 connects the upper main plane 25 and the lower main plane 24. The right side 26 includes a right slit 261 that extends leftward and inwardly to communicate with the first introduction slit 2511. They communicate with each other and extend in the lateral direction B to stop at a first front end surface 262 and a first rear end surface 263.

The left side surface 27 connects the upper main plane 25 and the lower main plane 24. The left side surface 27 includes a left slit 271 that extends to the right and inwardly to communicate with the first discharge slit 2522. They communicate with each other and extend in the lateral direction B and stop at a second front end surface 272 and a second rear end surface 273.

The upper shielding sheets 5 are respectively detachably and suitably disposed between the front boundary wall surface 2542 and the rear boundary wall surface 2543 of the first inlet area 254 and the first exit area. The front boundary wall surface 2552 and the rear boundary wall surface 2553 of 255. The upper shielding sheets 5 are flush with the right edge region 251 and the left edge region 252 of the upper main plane 25.

The lower shielding sheets 4 are respectively detachably and suitably arranged between the right boundary wall surface 2442 and the left boundary wall surface 2443 of the second entrance region 244 and between the right boundary wall surface 2452 and the left boundary wall surface 2453 of the second exit region 245. between. The lower shielding sheets 4 are flush with the leading edge region 241 and the trailing edge region 252 of the lower main plane 24.

5 to 8, a second specific embodiment of a modular flat-type connection device 2 according to the present invention is sandwiched between a pair of flat-type battery cells 3. Each flat-type battery cell 3 includes an anode mesh 34, A cathode network 35 and a flat battery body 33 sandwiched between the anode network 34 and the cathode network 35.

The second specific embodiment of the modular flat-type connection device 2 is similar to the first specific embodiment of the modular flat-type connection device 2, the differences are as follows: The first front end surface 262 and the first rear end surface 263 of the right slit 261 respectively extend to connect the upper main plane 25 and the lower main plane 24. The right slit 261 extends in the lateral direction B to allow the first front end face 262 and the first rear end face 263 there to be flush with the front slit end face and the rear slit end face of the first introduction slit 2511, respectively. To form a right resection.

The second front end surface 272 and the second rear end surface 273 of the left slit 271 respectively extend to connect the upper main plane 25 and the lower main plane 24. The left slit 271 extends in the lateral direction B to allow the second front end surface 272 and the second rear end surface 273 there to be flush with the front slit end surface and the rear slit end surface of the first discharge slit 2522, respectively. To form a left resection.

Referring to FIGS. 9 to 12, a specific embodiment of the solid oxide fuel cell 1 of the present invention includes an upper modular flat-type connection device 2 and a lower modular flat-type connection. The connection device 2, a flat battery cell 3 sandwiched between the two modular flat connection devices 2, a first auxiliary sealing member and a lower first auxiliary sealing member.

Each of the modular flat-type connection devices 2 is as described above. In particular, in the specific embodiment of the solid oxide fuel cell 1, it is the second specific embodiment using the modular flat-type connection device 2.

The flat-type battery cell 3 includes a flat-type battery member 31, an anode member 38, and a cathode member 39. The flat battery member 31 includes a flat battery body 33 and a battery body holder 32. The anode component 38 includes an anode mesh 34 and an anode support 36. The cathode component 39 includes a cathode mesh 35 and a cathode support 37.

The flat battery body 33 is inserted between the lower main area 243 of the lower main plane 24 of the upper modular flat connection device 2 and the upper main area 253 of the upper main plane 25 of the lower modular flat connection device 2. between. The battery body bracket 32 is arranged around and supported on the periphery of the flat battery body 33. The battery body bracket 32 has an upper front support area 321, an upper rear support area 322, a lower right support area 323 and a lower left support area 324. The upper front support area 321 and the upper rear support area 322 are oppositely disposed in the lateral direction B, and are respectively connected to the second entrance area 244 and the second exit area of the lower main plane 24 of the upper modular flat-type connection device 2. 245 cooperates closely. The lower right support region 323 and the lower left support region 324 are oppositely disposed in the longitudinal direction A, and are respectively connected to the first entrance region 254 and the first exit region of the upper main plane 25 of the lower modular flat-type connection device 2. 255 works closely.

The anode mesh 34 is sandwiched between the flat-type battery body 33 and the lower main area 243 of the lower main plane 24 of the upper modular flat-type connection device 2. The anode support 36 is arranged around and supported on the periphery of the anode mesh 34. The anode support 36 has a front anode support area 361 and a rear anode support area 362 oppositely arranged in the lateral direction B, each of which is opposite to The second inlet area 244 and the second outlet area 245 of the lower main plane 24 of the upper modular flat-type connection device 2 are closely matched.

The cathode network 35 is sandwiched between the flat battery body 33 and the upper main area 253 of the upper main plane 25 of the lower modular flat connection device 2. The cathode support 37 is arranged around and supported on the periphery of the cathode network 35. The cathode support 37 has a right cathode support area 371 and a left cathode support area 372 oppositely arranged in the longitudinal direction A, each of which is connected to the lower modular plate. The first inlet area 254 and the first outlet area 255 of the upper main plane 25 of the type connection device 2 are closely fitted.

The upper first auxiliary sealing member is disposed in one of the front anode support area 361 and the rear anode support area 362 of the anode support 36 and the second inlet area of the lower main plane 24 of the upper modular flat-type connection device 2. 244 and the corresponding one in the second exit region 245 to form a fluid seal there. The solid oxide fuel cell 1 further includes an upper second auxiliary sealing member, and the other one of the front anode support area 361 and the rear anode support area 362 of the anode support 36 is connected to the upper modular flat-type connection device. 2 between the second inlet region 244 and the second outlet region 245 of the lower main plane 24 to form a fluid seal there. In addition, the solid oxide fuel cell 1 includes an upper first primary seal member and an upper second primary seal member. The upper first main sealing member is disposed in one of the right anode support region 363 and the left anode support region 364 of the anode support 36 and the lower main region 243 of the lower main plane 24 of the upper modular flat-type connection device 2 Between its right and left counterparts to form a fluid seal there. The upper second main sealing member is disposed in the other of the right anode support area 363 and the left anode support area 364 of the anode support 36 and the lower main area of the lower main plane 24 of the upper modular flat-type connection device 2 Between the right and left counterparts of 243, A fluid seal is formed there. The material of the upper first auxiliary sealing member, the upper second auxiliary sealing member, the upper first main sealing member, and the upper second main sealing member are each selected from glass-ceramic, mica, and solder alloys. (solder alloy) or a combination thereof. In this specific embodiment, the upper first auxiliary sealing member, the upper second auxiliary sealing member, the upper first main sealing member, and the upper second main sealing member are integrally formed with the anode bracket 36. In other words, the anode support 36 in this embodiment is made of glass ceramic, mica, solder alloy, or a combination thereof, and its upper plane is used as the upper first auxiliary sealing member, the upper second auxiliary sealing member, A combination of the upper first main sealing member and the upper second main sealing member.

The lower first auxiliary sealing member is disposed in one of the right cathode support region 371 and the left cathode support region 372 of the cathode support 37 and the first entrance region of the upper main plane 25 of the lower modular flat-type connection device 2. 254 and the counterpart in the first exit zone 255 to form a fluid seal there. The solid oxide fuel cell 1 further includes a second auxiliary sealing member. The other one of the right cathode support region 371 and the left cathode support region 372 of the cathode support 37 is connected to the lower modular flat-type connection device 2. Between the first inlet region 254 and the first outlet region 255 of the upper main plane 25 to form a fluid seal there. In addition, the solid oxide fuel cell 1 includes a lower first primary seal member and a lower second primary seal member. The lower first main sealing member is disposed in one of the front cathode support area 373 and the rear cathode support area 374 of the cathode support 37 and the upper main area 253 of the upper main plane 25 of the lower modular flat-type connection device 2 Between its front and rear counterparts to form a fluid seal there. The lower second main sealing member is disposed at the other of the front cathode support region 373 and the rear cathode support region 374 of the cathode support 37 and the lower modular flat-type connection device 2 between the front and rear of the upper main region 253 of the upper main plane 25 to form a fluid seal there. Materials of the lower first auxiliary sealing member, the lower second auxiliary sealing member, the lower first main sealing member, and the lower second main sealing member are each selected from glass ceramics, mica, solder alloys, or a combination thereof. In this specific embodiment, the lower first auxiliary sealing member, the lower second auxiliary sealing member, the lower first main sealing member, and the lower second main sealing member are integrally formed with the cathode support 37. In other words, the cathode support 37 in this embodiment is made of glass ceramic, mica, solder alloy or a combination thereof, and its lower plane is used as the lower first auxiliary sealing member, the lower second auxiliary sealing member, A combination of the lower first main sealing member and the lower second main sealing member.

As described above, in the modular flat-type connection device 2 of the present invention, the upper shielding sheets 5 are each suitably disposed between the front boundary wall surface 2542 and the rear boundary wall surface 2543 of the first inlet area 254 and the first The exit boundary area 255 is between the front boundary wall surface 2552 and the rear boundary wall surface 2553. Therefore, the portions of the channels 256 in the first inlet area 254 and the first outlet area 255 are formed by the upper shield sheet 5 and the right cathode support area 371 and the left cathode support area 372 of the cathode support 37. Separated. Therefore, the front cathode support region 373 and the rear cathode support region 374 of the cathode support 37 can be sealed to the front and rear portions of the upper main region 253 of the upper main plane 25 of the modular flat-type connection device 2, and the cathode The right cathode bracket region 371 and the left cathode bracket region 372 of the bracket 37 can also be sealed to the upper shielding sheets 5 to improve the distance between the cathode bracket 37 and the upper main plane 25 of the modular flat-type connection device 2. The sealing effect can avoid the disadvantages of the foregoing prior art.

Similarly, as described above, each of the lower shielding sheets 4 is suitably disposed between the right boundary wall surface 2442 and the left boundary wall surface 2443 of the second entrance region 244 and the right boundary wall surface 2452 and the left boundary of the second exit region 245. Between the walls 2453. therefore, Portions of the channels 246 in the second inlet area 244 and the second outlet area 245 are separated from the front anode support area 361 and the rear anode support area 362 of the anode support 36 by the lower shielding sheets 4. Therefore, the right anode support region 363 and the left anode support region 364 of the anode support 36 may be sealed to the right and left portions of the lower main region 243 of the lower main plane 24 of the modular flat-type connection device 2, and the The front anode support area 361 and the rear anode support area 362 of the anode support 36 may also be sealed to the lower shielding sheets 4 to enhance the space between the anode support 36 and the lower main plane 24 of the modular flat-type connection device 2. Sealing effect.

In addition, the right slit 261 and the left slit 271 are respectively formed on the right side 26 and the left side 27 of the flat-type connection body 21 so as to communicate with the first introduction slit 2511 and the first discharge slit, respectively. 2522 fluid communication, the heat exchange effect of the solid oxide fuel cell can be improved by this.

To sum up, the modular flat-type connection device 2 of the present invention is suitably disposed between the front boundary wall surface 2542 and the rear boundary wall surface 2543 of the first inlet area 254 and the front boundary wall surface of the first outlet area 255, respectively. The upper shielding sheets 5 between 2552 and the rear boundary wall surface 2553, and each of them are suitably arranged between the right boundary wall surface 2442 and the left boundary wall surface 2443 of the second entrance area 244 and the right boundary wall surface of the second exit area 245. The lower shielding sheets 4 between 2452 and the left boundary wall surface 2453 can increase the maximum power density, fuel utilization rate, and power generation efficiency of the solid oxide fuel cell, so it can indeed achieve the purpose of cost invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (11)

A modular flat-type connection device suitable for being sandwiched between a pair of flat-type battery cells, each flat-type battery cell including an anode network, a cathode network, and a sandwich between the anode network and the cathode network Flat-type battery body, the modular flat-type connection device includes: a flat-type connection body, including: an upper main plane, including: a right edge area, and a right edge area opposite to the right edge area in a longitudinal direction A left edge region, an upper main region, is disposed between the right edge region and the left edge region, and is adapted to be positioned below a cathode network of a flat-type battery cell above, a first inlet region, adapted to a An oxygen-containing fluid, the first inlet area is disposed between the right edge area and the upper main area, and forms a first inlet depression area, the first inlet depression area is downward and inward from the upper main plane To form a front boundary wall surface and a rear boundary wall surface spaced from each other in a lateral direction, a first outlet area is suitable for the oxygen-containing fluid, and the first outlet area is disposed between the left edge area and the upper main area And forming a first exit recessed area, the first exit recessed area Recessed downward and inward from the upper main plane to form a front boundary wall surface and a rear boundary wall surface spaced from each other in the lateral direction, and a plurality of channels formed in the upper main region of the upper main plane, penetrating the The first entrance area stops at a plurality of first entrances, and further penetrates the first exit area and ends at a plurality of first exits. The main plane includes: a leading edge area, and a horizontal direction with the leading edge area. A trailing edge area provided in the opposite direction, a lower main area, is disposed between the leading edge area and the trailing edge area, and is suitable for being positioned above an anode mesh of a flat battery cell below, and a second inlet area Suitable for a fuel fluid, the second inlet area is disposed between the leading edge area and the lower main area, and forms a second inlet depression area, the second inlet depression area is upward and downward from the lower main plane Recessed internally to form a right boundary wall surface and a left boundary wall surface spaced from each other in the longitudinal direction, a second outlet region is suitable for the fuel fluid, and the second outlet region is disposed between the trailing edge region and the lower main region And form a second exit recess area, the second exit recess The area is recessed upward and inward from the lower main plane to form a right boundary wall surface and a left boundary wall surface spaced from each other in the longitudinal direction, and a plurality of channels formed in the lower main area of the lower main plane, penetrating The second inlet region stops at a plurality of second inlets, and further penetrates the second outlet region and ends at a plurality of second outlets, wherein the right edge region has a first introduction slit, and the first introduction slit A slit extends from the upper principal plane to the lower principal plane to be in fluid communication with the first inlets, and wherein the left edge region has a first discharge slit extending from the upper principal plane. To the lower main plane for fluid communication with the first outlets; a right side that connects the upper main plane and the lower main plane, the right side includes a right slit that extends leftward and inwardly To be in fluid communication with the first introduction slit and extend in the lateral direction to stop at a first front end surface, a first rear end surface, and a left side surface, connecting the upper main plane and the lower main plane, The left side includes a left slit, the left slit facing right And extends inwardly to be in fluid communication with the first discharge slit, and extends in the lateral direction to stop at a second front end surface and a second rear end surface; a pair of upper shielding pieces, each of which is suitably disposed at the first A front boundary wall surface and a rear boundary wall surface of an inlet area and a front boundary wall surface and a rear boundary wall surface of the first outlet area; and a pair of lower shielding pieces, each of which is suitably disposed on the right boundary wall surface of the second inlet area With the left boundary wall surface and between the right boundary wall surface and the left boundary wall surface of the second exit area. The modular flat-type connection device according to claim 1, wherein the first front end surface and the first rear end surface of the right slit respectively extend to connect the upper main plane and the lower main plane. The modular flat-type connection device according to claim 1, wherein the second front end surface and the second rear end surface of the left slit respectively extend to connect the upper main plane and the lower main plane. The modular flat-type connection device according to claim 1, wherein the right slit extends in the lateral direction to allow the first front end face and the first rear end face there to be respectively connected to the first introduction slit. The front slit end face and the rear slit end face are flush to form a right cutout. The modular flat-type connection device according to claim 1, wherein the left slit extends in the lateral direction to allow the second front end face and the second rear end face thereof to be respectively connected to the first discharge slit. The front slit end face and the rear slit end face are flush to form a left cutout. A solid oxide fuel cell includes: an upper modular flat-type connection device and a lower modular flat-type connection device, each modular flat-type connection device is as described in claim 1; a flat-type battery unit Is sandwiched between the upper modular flat-type connection device and the lower modular flat-type connection device, the flat-type battery unit includes: a flat-type battery component, including: a flat-type battery body, inserted in the Between the lower main area of the lower main plane of the upper modular flat-type connection device and the upper main area of the upper main plane of the lower modular flat-type connection device, and a battery body bracket is disposed around and supported on the The periphery of the flat battery body, the battery body support has an upper front support area and an upper rear support area oppositely arranged in the lateral direction, and each of the second inlet area of the lower main plane of the upper modular flat connection device It is closely matched with the second exit area, and the lower right support area and the lower left support area oppositely arranged in the longitudinal direction are respectively connected with the first entrance area of the upper main plane of the lower modular flat-type connection device. In close cooperation with the first exit area, an anode component includes an anode mesh sandwiched between the flat battery body and the lower main area of the lower main plane of the upper modular flat connection device, and an anode support. The anode support has a front anode support area and a rear anode support area arranged opposite to each other in the lateral direction, and each is connected to the lower main plane of the upper modular flat-type connection device. The second inlet area and the second outlet area are closely matched, and a cathode component includes a cathode network sandwiched between the flat battery body and an upper main area of an upper main plane of the lower modular flat connection device. And a cathode support, which is arranged around and supported on the periphery of the cathode grid, the cathode support has a right cathode support area and a left cathode support area oppositely arranged in the longitudinal direction, and each is connected to the lower modular flat-type connection device The first inlet area and the first outlet area of the upper main plane are closely matched; a first auxiliary sealing member is provided on one of the front anode support area and the rear anode support area of the anode support; Between the second inlet region and the second outlet region of the lower main plane of the upper modular flat-type connection device to form a fluid seal there; and a first auxiliary sealing member disposed on the cathode One of the right cathode bracket region and the left cathode bracket region of the bracket and the counterpart in the first inlet region and the first outlet region of the upper main plane of the lower modular flat-type connection device, so as to be there Forms a fluid-tight seal. The solid oxide fuel cell according to claim 6, further comprising: an upper second auxiliary sealing member, the other of which is provided in the front anode support area and the rear anode support area of the anode support and is modularized with the upper Flat type connection device between the second inlet area and the second outlet area of the lower main plane to form a fluid seal there; and a second auxiliary sealing member provided on the right cathode support of the cathode support Between the other of the region and the left cathode support region and the counterparts in the first inlet region and the first outlet region of the upper main plane of the lower modular flat-type connection device to form a fluid seal there. The solid oxide fuel cell according to claim 6, wherein the upper first auxiliary sealing member and the anode support are integrally formed, and the lower first auxiliary sealing member and the cathode support are integrally formed. The solid oxide fuel cell according to claim 7, wherein the upper second auxiliary sealing member and the anode support are integrally formed, and the lower second auxiliary sealing member and the cathode support are integrally formed. The solid oxide fuel cell according to claim 8, wherein a material of the upper first auxiliary sealing member is selected from glass ceramic, mica, solder alloy, or a combination thereof, and a material of the lower first auxiliary sealing member is It is selected from glass ceramic, mica, solder alloy, or a combination thereof. The solid oxide fuel cell according to claim 9, wherein the material of the upper second auxiliary sealing member is selected from the group consisting of glass ceramic, mica, solder alloy, or a combination thereof, and the material of the lower second auxiliary sealing member is It is selected from glass ceramic, mica, solder alloy, or a combination thereof.