CN218896666U - Fuel cell stack packaging structure - Google Patents

Abstract

The utility model discloses a fuel cell stack packaging structure, which is used for packaging a stack main body of a fuel cell, and comprises an upper end plate assembly, a lower end plate assembly, an adjusting piece and a pull rod; the upper end plate assembly is positioned at the upper end of the pile main body; the lower end plate assembly is positioned at the lower end of the pile main body; one end of the adjusting piece is connected with one end of the pull rod, the other end of the adjusting piece is connected with one of the upper end plate assembly or the lower end plate assembly, and the other end of the pull rod is connected with the other of the upper end plate assembly or the lower end plate assembly; the adjusting piece is used for adjusting the distance between the upper end plate assembly and the lower end plate assembly so that the overall height of the fuel cell stack packaging structure is adjustable. The fuel cell stack packaging structure can solve the problem that the overall height of the fuel cell stack packaging structure is not adjustable.

Description

Fuel cell stack packaging structure

Technical Field

The utility model relates to the technical field of fuel cell stack packaging, in particular to a fuel cell stack packaging structure.

Background

The fuel cell stack is a high-efficiency energy conversion power generation device which takes hydrogen as an optimal fuel and directly converts chemical energy in fuel and oxidant into electric energy in an electrochemical reaction mode without a combustion process, and has the characteristics of low working temperature, short starting time, high power density, quick load response, no electrolyte loss and the like. The fuel cell stack is formed by stacking hundreds of fuel cell repeating units of tens of more, the repeating units are tightly pressed under the fastening action of end plates at two sides, and then the fuel cell stack is packaged by means of external force, so that the packaging has important influence on the safety, the electrochemistry and the like of the fuel cell stack.

The fuel cell stack packaging structure generally comprises an end plate, an insulating plate, a current collecting plate, a pull rod and the like, wherein two ends of the pull rod are respectively connected with an upper end plate and a lower end plate so as to tightly press a stack main body of the fuel cell under the fastening action through the upper end plate and the lower end plate. However, the two ends of the existing tie rod are usually fixedly connected with the upper end plate and the lower end plate through screws, the overall height of the fuel cell stack packaging structure is not adjustable, when the number of the fuel cell repeating units is increased, the overall height of the fuel cell stack packaging structure is increased, and then the tie rod with a new length needs to be replaced to connect the upper end plate and the lower end plate together, so that the cost is high due to the fact that the tie rods with different lengths are produced.

Disclosure of Invention

The utility model mainly aims to provide a fuel cell stack packaging structure, which aims to solve the problem that the overall height of the fuel cell stack packaging structure is not adjustable.

In order to achieve the above object, the present utility model provides a fuel cell stack package structure for packaging a stack main body of a fuel cell, the fuel cell stack package structure comprising:

an upper end plate assembly located at an upper end of the stack body;

the lower end plate assembly is positioned at the lower end of the pile main body; and

the device comprises an adjusting piece and a pull rod, wherein one end of the adjusting piece is connected with one end of the pull rod, the other end of the adjusting piece is connected with one of the upper end plate assembly or the lower end plate assembly, and the other end of the pull rod is connected with the other of the upper end plate assembly or the lower end plate assembly; the adjusting piece is used for adjusting the distance between the upper end plate assembly and the lower end plate assembly so that the overall height of the fuel cell stack packaging structure is adjustable.

In an embodiment, a nut is arranged at one end of the pull rod, and the adjusting piece is a screw rod which is in threaded fit with the nut.

In one embodiment, the upper endplate assembly includes a first endplate and a second endplate, and the lower endplate assembly includes a third endplate and a fourth endplate, with the second endplate and the third endplate being located between the first endplate and the fourth endplate; one end of the pull rod is movably connected with the first end plate through the adjusting piece, and the other end of the pull rod is fixedly connected with the fourth end plate.

In one embodiment, the screw includes a body portion and a stem portion connected to the body portion, the stem portion passing through the first end plate and threadedly engaging the nut; the fuel cell stack packaging structure further comprises a first fastening piece which is in threaded fit with the rod part and is positioned on one side of the first end plate away from the body part.

In one embodiment, the fuel cell stack package structure further includes a second fastener threadedly engaged with the stem portion and abutting an end portion of the tie rod.

In one embodiment, the first and fourth end plates have a hardness greater than the hardness of the second and third end plates.

In one embodiment, a plurality of openings are formed along both ends of the length direction of the third end plate, and the plurality of openings are communicated with the inside of the pile body.

In an embodiment, the fuel cell stack package structure further includes a disc spring support plate and a plurality of disc springs, the disc spring support plate is disposed between the first end plate and the second end plate, a plurality of fixing columns are disposed on the disc spring support plate, and the plurality of disc springs are sleeved on the plurality of fixing columns.

In an embodiment, the fuel cell stack package structure further includes an upper current collecting plate and a lower current collecting plate, the upper current collecting plate and the lower current collecting plate are located between the second end plate and the third end plate, the upper current collecting plate is abutted to the upper surface of the stack body, and the lower current collecting plate is abutted to the lower surface of the stack body.

In one embodiment, the upper and lower current collector plates have lead-out lugs for electrical connection with the stack body.

According to the technical scheme, the upper end plate assembly, the lower end plate assembly, the adjusting piece and the pull rod are arranged; the upper end plate assembly is positioned at the upper end of the pile main body; the lower end plate assembly is positioned at the lower end of the pile main body; one end of the adjusting piece is connected with one end of the pull rod, the other end of the adjusting piece is connected with one of the upper end plate assembly or the lower end plate assembly, and the other end of the pull rod is connected with the other of the upper end plate assembly or the lower end plate assembly; the adjusting piece is used for adjusting the distance between the upper end plate assembly and the lower end plate assembly so that the overall height of the fuel cell stack packaging structure is adjustable. When the overall height of the fuel cell stack packaging structure is required to be adjusted, only the adjusting piece is required to be adjusted or replaced, and a new pull rod with different length is not required to be replaced, so that the pull rod with different length is not required to be molded, and the production cost is reduced. The overall height of the fuel cell stack packaging structure is adjusted through the adjusting piece, and the operation is simple and convenient, so that the problem that the overall height of the fuel cell stack packaging structure is not adjustable can be solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a fuel cell stack package structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the structure of FIG. 1 from another perspective;

FIG. 3 is an exploded view of the structure of FIG. 1;

FIG. 4 is a cross-sectional view of the structure of FIG. 1;

FIG. 5 is an enlarged view of FIG. 4 at A;

fig. 6 is a schematic structural view of a part of the structure of fig. 3.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides an embodiment of a fuel cell stack packaging structure, which is a high-efficiency energy conversion power generation device for converting chemical energy in fuel and oxidant into electric energy in a mode of directly carrying out electrochemical reaction without a combustion process by taking hydrogen as an optimal fuel. The fuel cell stack is formed by stacking hundreds of fuel cell repeating units of tens of more, the repeating units are tightly pressed under the fastening action of end plates at two sides, and then the fuel cell stack is packaged by means of external force, so that the packaging has important influence on the safety, the electrochemistry and the like of the fuel cell stack.

Referring to fig. 1 to 5, in an embodiment of the present utility model, the fuel cell stack package structure is used for packaging a stack main body 600 of a fuel cell, and the fuel cell stack package structure includes:

an upper end plate assembly 100 positioned at an upper end of the stack body 600;

a lower end plate assembly 200 positioned at a lower end of the stack body 600; and

an adjusting member 300 and a tie rod 400, one end of the adjusting member 300 being connected to one end of the tie rod 400, the other end of the adjusting member 300 being connected to one of the upper end plate assembly 100 or the lower end plate assembly 200, the other end of the tie rod 400 being connected to the other of the upper end plate assembly 100 or the lower end plate assembly 200; the adjusting member 300 is used to adjust the distance between the upper end plate assembly 100 and the lower end plate assembly 200 so that the overall height of the fuel cell stack package structure is adjustable.

One end of the pull rod 400 is movably connected with the upper end plate assembly 100 through the adjusting piece 300, the other end of the pull rod 400 is fixedly connected with the lower end plate assembly 200, or one end of the pull rod 400 is fixedly connected with the upper end plate assembly 100, and the other end of the pull rod 400 is movably connected with the lower end plate assembly 200 through the adjusting piece 300.

Specifically, the stack body 600 is located between the upper and lower end plate assemblies 100 and 200, and compression of the stack body 600 of the fuel cell is achieved by the upper and lower end plate assemblies 100 and 200 under fastening. The adjusting piece 300 is in a rod-shaped arrangement, the pull rod 400 is also in a rod-shaped arrangement, one end of the pull rod 400 is movably connected with one end of the adjusting piece 300, and the adjusting piece 300 can be adjusted to prolong or shorten the whole length of the pull rod 400 and the adjusting piece 300. When the number of the fuel cell repeating units increases, the overall height of the fuel cell stack package structure becomes high, and at this time, the overall height of the fuel cell stack package structure can be adjusted by adjusting the length of the adjustment member 300 after being connected with the tie rod 400. In this embodiment, the adjusting member 300 may be provided as a screw 310, one end of the pull rod 400 may be provided with a screw hole, or one end of the pull rod 400 may be embedded with a nut 410, the screw 310 is in threaded engagement with the nut 410, and the overall length of the screw 310 and the pull rod 400 after being added may be adjusted by rotating the screw 310.

The pull rod 400 may have one end movably connected to the upper end plate assembly 100 via the adjusting member 300, and the other end fixedly connected to the lower end plate assembly 200, or may have one end fixedly connected to the upper end plate assembly 100, and the other end movably connected to the lower end plate assembly 200 via the adjusting member 300, which is not limited in particular.

Referring to fig. 5, when the number of the fuel cell repeating units increases or decreases, the overall height of the fuel cell stack package structure becomes higher or lower, and at this time, the overall length of the screw 310 plus the tie rod 400 can be made longer or shorter by rotating the screw 310, thereby functioning to adjust the overall height of the fuel cell stack package structure. Of course, when the number of the repeating units of the fuel cell is increased too much or decreased too much, the function of adjusting the overall height of the fuel cell stack package structure can be achieved by replacing the adjusting member 300 a little longer or a little shorter without having to replace the tie rod 400 with a new one of a different length.

According to the technical scheme, the upper end plate assembly 100, the lower end plate assembly 200, the adjusting piece 300 and the pull rod 400 are arranged; the upper end plate assembly 100 is located at the upper end of the stack body 600; the lower end plate assembly 200 is positioned at the lower end of the stack body 600; one end of the adjusting member 300 is connected to one end of the pull rod 400, the other end of the adjusting member 300 is connected to one of the upper end plate assembly 100 or the lower end plate assembly 200, and the other end of the pull rod 400 is connected to the other of the upper end plate assembly 100 or the lower end plate assembly 200; the adjusting member 300 is used to adjust the distance between the upper end plate assembly 100 and the lower end plate assembly 200 so that the overall height of the fuel cell stack package structure is adjustable. When the overall height of the fuel cell stack package structure needs to be adjusted, only the adjusting piece 300 needs to be adjusted or replaced, and a new pull rod 400 with different lengths does not need to be replaced, so that the pull rod 400 with different lengths does not need to be manufactured by die opening, and the production cost is reduced. The overall height of the fuel cell stack packaging structure is adjusted through the adjusting piece 300, and the operation is simple and convenient, so that the problem that the overall height of the fuel cell stack packaging structure is not adjustable can be solved.

Referring to fig. 5, in an embodiment, a nut 410 is disposed at one end of the pull rod 400, and the adjusting member 300 is a screw 310, and the screw 310 is in threaded engagement with the nut 410. Of course, in other embodiments, the adjusting member 300 may also have other adjustable structures, which are not limited in particular.

Referring to fig. 3, in one embodiment, the upper endplate assembly 100 includes a first endplate 110 and a second endplate 120, the lower endplate assembly 200 includes a third endplate 210 and a fourth endplate 220, and the second endplate 120 and the third endplate 210 are positioned between the first endplate 110 and the fourth endplate 220; one end of the pull rod 400 is movably connected with the first end plate 110 through the adjusting member 300, and the other end is fixedly connected with the fourth end plate 220.

Specifically, the fuel cell stack packaging structure is provided with a first end plate 110, a second end plate 120, a third end plate 210 and a fourth end plate 220 from top to bottom, a stack body is placed between the second end plate 120 and the third end plate 210, one end of a pull rod 400 is connected with the first end plate 110, the other end is connected with the fourth end plate 220, and the upper end plate assembly 100 and the lower end plate assembly 200 positioned at two ends of the stack body are pressed against the stack body through the tensile force of the pull rod 400. In order to facilitate the assembly of the fuel cell stack by the operator, one end of the pull rod 400 is movably connected to the first end plate 110 via the adjusting member 300, and the other end is fixedly connected to the fourth end plate 220. That is, one end of the pull rod 400 is fixedly connected with the fourth end plate 220 located below the stack main body 600, so that the stability of connection between the pull rod 400 and the fourth end plate 220 is ensured, and the other end of the pull rod 400 is movably connected with the first end plate 110 located above the stack main body 600 through the adjusting member 300, so that a worker can operate at the upper end of the fuel cell stack packaging structure, and the fuel cell stack packaging structure is convenient and fast, and is convenient for placing fuel cell monomers.

In an embodiment, the stiffness of the first end plate 110 and the fourth end plate 220 is greater than the stiffness of the second end plate 120 and the third end plate 210, so that the first end plate 110 and the fourth end plate 220 will not deform when the tie rod 400 is connected to the first end plate 110 and the fourth end plate 220 under a large tensile force, thereby ensuring the performance and the lifetime of the galvanic pile. Further, the first end plate 110 and the fourth end plate 220 are metal members, and the second end plate 120 and the third end plate 210 are insulating members. Specifically, the first end plate 110 and the fourth end plate 220 are made of metal, the second end plate 120 and the third end plate 210 are made of plastic, and the first end plate 110 and the fourth end plate 220 made of metal have high strength and high tensile strength and do not deform when receiving a large tensile force.

In one embodiment, the first end plate 110 and/or the fourth end plate 220 are provided with a plurality of grooves. Specifically, since the first end plate 110 and the fourth end plate 220 are made of metal, the metal is heavier than the plastic. In order to further reduce the overall weight of the fuel cell stack package structure, a plurality of grooves may be formed on the upper surface of the first end plate 110 and/or the lower surface of the fourth end plate 220, so as to reduce the overall weight of the fuel cell stack package structure. To ensure that the overall weight of the fuel cell stack package structure is reduced to the greatest extent, the number of grooves formed on the upper surface of the first end plate 110 and/or the lower surface of the fourth end plate 220 is as large as possible, and it is also ensured that the area of each groove is sufficiently large. The shape of the groove may be circular, may be rectangular, or may be diamond-shaped, which is not particularly limited.

In an embodiment, the third end plate 210 is provided with a limiting protrusion, and the fourth end plate 220 is provided with a limiting groove, and the limiting protrusion is matched with the limiting groove. Specifically, the third end plate 210 is provided with a limiting protrusion, the fourth end plate 220 is provided with a limiting groove, the limiting protrusion is located in the limiting groove, and the limiting protrusion and the limiting groove are matched to limit the fourth end plate 220, so that the relative positions of the fourth end plate 220 and the third end plate 210 are prevented from being offset relatively when being acted by external force, and the pressing force of the upper end plate assembly 100 and the lower end plate assembly 200 on the electric pile main body 600 is insufficient, and the overall performance of the fuel cell electric pile is affected.

Considering that when the fourth end plate 220 is mounted in the mounting groove of the third end plate 210, if the lower surface of the fourth end plate 220 protrudes from the lower surface of the third end plate 210, the periphery of the lower surface of the lower end plate assembly 200 of the fuel cell stack package structure is not in contact with the ground when the fuel cell stack package structure is in contact with the ground, which easily results in unstable overall fuel cell stack package structure; if the lower surface of the third terminal plate 210 protrudes from the lower surface of the fourth terminal plate 220, when the fuel cell stack package structure is placed on the ground, the fourth terminal plate 220 receives the entire weight of the fuel cell stack, and since the fourth terminal plate 220 is made of plastic material and the contact area between the fourth terminal plate 220 and the ground is small, the fourth terminal plate 220 is easily damaged. To avoid the above problem, the lower surface of the third end plate 210 and the lower surface of the fourth end plate 220 may be flush, so that the entire weight of the fuel cell stack package structure is commonly borne by the third end plate 210 and the fourth end plate 220, thereby avoiding the above problem.

Referring to fig. 5, in one embodiment, the screw 310 includes a body 311 and a rod 312 connected to the body 311, the rod 312 passing through the first end plate 110 and being threadedly engaged with the nut 410; the fuel cell stack package further includes a first fastener 510, where the first fastener 510 is screwed with the stem 312 and is located on a side of the first end plate 110 away from the body 311. Specifically, the first fastening member 510 may be configured as a nut, the first fastening member 510 is sleeved on the screw 310, the screw 310 passes through the first end plate 110 and is screwed with the nut 410, the first fastening member 510 is located on a side of the first end plate 110 away from the body 311, and the first fastening member 510 may abut against a lower surface of the first end plate 110, so as to lock the adjusting member 300 to play a role of locking and loosening prevention.

With continued reference to fig. 5, further, the fuel cell stack package structure further includes a second fastener 520, where the second fastener 520 is in threaded engagement with the stem 312 and abuts against an end of the tie rod 400. Specifically, the second fastening member 520 may also be configured as a nut, where the second fastening member 520 is sleeved on the screw 310, that is, on the adjusting member 300, and the second fastening member 520 abuts against the upper surface of the end portion of the pull rod 400, so as to lock the adjusting member 300 and play a role in locking and loosening.

In one embodiment, the stiffness of the first end plate 110 and the fourth end plate 220 is greater than the stiffness of the second end plate 120 and the third end plate 210.

Referring to fig. 2 and 3, in an embodiment, a plurality of openings 211 are formed along two ends of the third terminal plate 210 in the length direction, and the plurality of openings 211 are in communication with the interior of the stack main body 600. Specifically, the plurality of openings 211 include a hydrogen inlet and outlet, an air inlet and outlet, and a condensate inlet and outlet, and a plurality of screw holes are further formed around the plurality of openings 211 for fixedly mounting the hydrogen pipe, the air pipe, and the condensate pipe to the corresponding openings 211. Meanwhile, the third end plate 210 is provided with a plurality of openings 211, and the third end plate 210 is made of plastic, so that after the hydrogen pipe, the air pipe and the condensate pipe are fixedly arranged at the corresponding openings 211, metal ions are not brought into the fuel cell in the use process, and the metal ion pollution can be reduced.

Referring to fig. 3 and 6, in an embodiment, the fuel cell stack package structure further includes a disc spring 800 supporting plate 700 and a plurality of disc springs 800, the disc spring 800 supporting plate 700 is disposed between the first end plate 110 and the second end plate 120, a plurality of fixing columns 710 are disposed on the disc spring 800 supporting plate 700, and the plurality of disc springs 800 are sleeved on the plurality of fixing columns 710.

Specifically, the disc spring 800 has elasticity, the disc spring 800 support plate 700 is located between the first end plate 110 and the second end plate 120, the first end plate 110 is connected with the pull rod 400, the lower surface of the disc spring 800 support plate 700 abuts against the upper surface of the second end plate 120, when the adjusting member 300 is adjusted, so that the first end plate 110 presses the galvanic pile main body 600 downwards, the disc spring 800 support plate 700 and the disc spring 800 cooperate to adjust the downward pressure of the first end plate 110, so that the surface pressure of the upper end plate assembly 100 on the upper end of the galvanic pile main body 600 is uniform, and the problems of local stress concentration, overheating and the like caused by uneven pressure are avoided, and the performance and the service life of the galvanic pile main body 600 are improved.

Referring to fig. 1 to 3 and 6, in an embodiment, the fuel cell stack package structure further includes an upper current collecting plate 910 and a lower current collecting plate 920, the upper current collecting plate 910 and the lower current collecting plate 920 are located between the second end plate 120 and the third end plate 210, the upper current collecting plate 910 is abutted against the upper surface of the stack main body 600, and the lower current collecting plate 920 is abutted against the lower surface of the stack main body 600. Further, the upper and lower current collecting plates 910 and 920 have lead-out lugs 930 for electrical connection with the stack body 600, so that it is possible to ensure the diversion of the electric power generated by the stack body 600 into an external load.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A fuel cell stack package structure for packaging a stack body of a fuel cell, the fuel cell stack package structure comprising:

an upper end plate assembly located at an upper end of the stack body;

the lower end plate assembly is positioned at the lower end of the pile main body; and

the device comprises an adjusting piece and a pull rod, wherein one end of the adjusting piece is connected with one end of the pull rod, the other end of the adjusting piece is connected with one of the upper end plate assembly or the lower end plate assembly, and the other end of the pull rod is connected with the other of the upper end plate assembly or the lower end plate assembly; the adjusting piece is used for adjusting the distance between the upper end plate assembly and the lower end plate assembly so that the overall height of the fuel cell stack packaging structure is adjustable.

2. The fuel cell stack package according to claim 1, wherein one end of the tie rod is provided with a nut, and the adjusting member is a screw which is screw-fitted with the nut.

3. The fuel cell stack package of claim 2, wherein the upper endplate assembly includes a first endplate and a second endplate, the lower endplate assembly includes a third endplate and a fourth endplate, and the second endplate and the third endplate are positioned between the first endplate and the fourth endplate; one end of the pull rod is movably connected with the first end plate through the adjusting piece, and the other end of the pull rod is fixedly connected with the fourth end plate.

4. The fuel cell stack package according to claim 3, wherein the screw includes a body portion and a stem portion connected to the body portion, the stem portion passing through the first end plate and being threadedly engaged with the nut; the fuel cell stack packaging structure further comprises a first fastening piece which is in threaded fit with the rod part and is positioned on one side of the first end plate away from the body part.

5. The fuel cell stack package of claim 4 further comprising a second fastener threadedly engaged with the stem and abutting an end of the tie rod.

6. The fuel cell stack package of claim 3, wherein the first end plate and the fourth end plate have a hardness greater than the hardness of the second end plate and the third end plate.

7. The fuel cell stack package according to claim 3, wherein a plurality of openings are provided along both ends of the length direction of the third end plate, the plurality of openings communicating with the inside of the stack body.

8. The fuel cell stack package according to claim 3, further comprising a disc spring support plate and a plurality of disc springs, wherein the disc spring support plate is disposed between the first end plate and the second end plate, a plurality of fixing columns are disposed on the disc spring support plate, and the plurality of disc springs are sleeved on the plurality of fixing columns.

9. The fuel cell stack package of claim 3 further comprising an upper current collector and a lower current collector, the upper current collector and the lower current collector being positioned between the second end plate and the third end plate, the upper current collector abutting an upper surface of the stack body, the lower current collector abutting a lower surface of the stack body.

10. The fuel cell stack package according to claim 9, wherein the upper current collecting plate and the lower current collecting plate have lead-out lugs for electrical connection with the stack body.

Images