Electric pile packaging structure and hydrogen fuel cell power system
By extending the copper busbar into the shell of the hydrogen fuel cell and using a sealing gasket to maintain a seal with the packaging plate, the problem of stack leakage caused by sealant oxidation is solved, more stable sealing and simpler processing are achieved, and costs and space requirements are reduced.
Patent Information
- Application Number
- CN202422169293.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-09-04
AI Technical Summary
In the prior art, the gap between the copper busbar and the fuel cell stack of a hydrogen fuel cell relies on sealant to maintain a sealing effect. However, the sealant is easily oxidized and detached, causing leakage in the fuel cell stack.
A battery stack packaging structure is designed, in which the copper busbar is extended into the interior of the shell and the sealing is maintained between the copper busbar and the packaging plate by a sealing gasket. A detachable packaging plate and sealing gasket structure is used to replace the traditional easily oxidized sealant.
The protection and sealing stability of the copper busbar are improved, the processing process is simplified, the packaging space and cost are reduced, and the service life of the hydrogen fuel cell is extended.
Smart Images
Figure CN223462241U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of hydrogen fuel cell power systems, in particular to a stack packaging structure. BACKGROUND
[0002] The production of hydrogen fuel cells is often small batch, so there are strict requirements for the packaging of hydrogen fuel cells. However, in the prior art, the gap between the exposed copper bar and the stack is maintained by sealing glue, but the sealing glue will gradually oxidize and separate over time, thereby losing its effect and causing the stack to leak. CONTENT OF THE UTILITY MODEL
[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a stack packaging structure that can extend the copper bar into the inside of the stack packaging structure without excessive exposure, and a sealing gasket is provided between the copper bar and the packaging plate to maintain sealing.
[0004] The present application also proposes a hydrogen fuel cell power system having the above-mentioned stack packaging structure.
[0005] The stack packaging structure according to the first aspect of the present application comprises:
[0006] a housing, the top of the housing is provided with a packaging opening, the housing is provided with a first side wall, the first side wall is provided with a plurality of mounting ports, the mounting ports are used to connect with the stack to fix the stack to the first side wall;
[0007] a packaging plate, the packaging plate is detachably mounted in the packaging opening, the packaging plate is detachably connected with the packaging opening, the packaging plate is adjacent to the first side wall, the packaging plate is provided with a groove and the groove is provided with a sealing port, so that the copper bar extends into the inside of the housing through the sealing port;
[0008] a sealing gasket, the sealing gasket is provided on the packaging plate, the sealing gasket is clamped between the side wall of the groove and the sealing port, and the sealing gasket is used to seal the connection between the packaging plate and the copper bar.
[0009] According to the stack packaging structure provided by the embodiment of the present application, the copper bar with direct current is introduced into the inside of the shell through the sealing opening, so that the copper bar can be better protected from being damaged. The sealing gasket arranged between the outer part of the copper bar and the packaging plate is more stable than the sealing glue in the conventional technology, and the effect is not easy to disappear. The packaging plate is detachably installed on the packaging opening, so that the structure inside the shell can be adjusted more easily, and the non-integrated structure makes the processing more convenient. The first side wall is provided with the mounting opening, so that the stack can be fixed on the first side wall, thereby avoiding the use of the stack fixing support, reducing the space required for packaging, and saving the cost.
[0010] According to some embodiments of the present application, a first packaging cover is further included, the shell includes a second side wall adjacent to the packaging plate and the first side wall respectively, the second side wall is provided with a first detection opening, and the first packaging cover is detachably installed on the first detection opening.
[0011] According to some embodiments of the present application, a second packaging cover is further included, the shell further includes a third side wall adjacent to the packaging plate and the first side wall respectively, the third side wall is opposite to the second side wall, the third side wall is provided with a second detection opening, and the second packaging cover is detachably installed on the second detection opening.
[0012] According to some embodiments of the present application, the connection between the packaging plate, the first packaging cover and the second packaging cover and the shell is provided with a sealing assembly.
[0013] According to some embodiments of the present application, the shell further includes a fourth side wall and a bottom plate, the first side wall, the second side wall, the third side wall, the fourth side wall and the bottom plate form the shell, the first side wall is connected to the second side wall and the third side wall by welding respectively, the first side wall, the second side wall, the third side wall and the fourth side wall are connected to the bottom plate by welding, and the inner surface of the shell and the side of the packaging plate facing the shell are flat and coated with insulating paint.
[0014] According to some embodiments of the present application, the mounting openings are symmetrically distributed along the central axis of the first side wall in the horizontal direction.
[0015] According to some embodiments of the present application, the inside of the shell is provided with a plurality of moisture absorption sheets.
[0016] According to some embodiments of the present application, the outer surface of the shell is coated with an insulating oxide film.
[0017] According to some embodiments of the present application, the insulating oxide film is a hard anodic oxide film with a thickness of 50 microns.
[0018] The hydrogen fuel cell power system according to the second aspect of the present application comprises:
[0019] The stack packaging structure according to the first aspect of the present application.
[0020] The hydrogen fuel cell power system according to the embodiments of the present application has at least the following beneficial effects: the copper bar with direct current is introduced into the inside of the shell through the sealing port, so that the copper bar can be better protected from being damaged. The sealing gasket arranged between the outer part of the copper bar and the packaging plate is more stable than the sealing glue of the conventional technology and is less likely to lose its effect. The packaging plate can be detachably installed on the packaging opening, so that the structure inside the shell is easier to adjust, and the non-integral structure also makes the processing more convenient. The first side wall is provided with a mounting port, so that the stack can be fixed on the first side wall, thereby avoiding the use of a stack fixing support, reducing the space required for packaging, and saving costs. By using the stack packaging structure of the present application, the volume of the stack packaging structure provided by the hydrogen fuel cell power system is relatively reduced, so the overall volume is reduced, thereby reducing the space and material costs, and the improvement of the sealing capacity also improves the quality and service life of the hydrogen fuel cell power system to a certain extent.
[0021] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS
[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:
[0023] Figure 1 The exploded view of the stack packaging structure according to the embodiments of the present application;
[0024] Figure 2 The exploded view of the stack packaging structure according to the embodiments of the present application; Figure 1 Another perspective view of the exploded view of the stack packaging structure.
[0025] REFERENCE NUMERALS:
[0026] Stack packaging structure 100; sealing gasket 110; sealing port 120; packaging plate 130; first packaging cover 140; first side wall 150; mounting port 160; second side wall 170; first detection port 180; moisture absorbing sheet 190; third side wall 200; second packaging cover 210; second detection port 220; fourth side wall 230; shell 1000. DETAILED DESCRIPTION
[0027] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.
[0028] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.
[0029] In the description of this application, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.
[0030] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0031] The following references Figure 1 and Figure 2 A battery stack packaging structure 100 according to an embodiment of the present application is described.
[0032] like Figure 1 As shown, the battery stack packaging structure 100 according to an embodiment of the present application includes:
[0033] The housing 1000 has a packaging opening at the top thereof and a first sidewall 150 thereon. The first sidewall 150 has a plurality of mounting openings 160 thereon. The mounting openings 160 are used to connect to the battery stack to secure the battery stack to the first sidewall 150.
[0034] The packaging plate 130 is detachably mounted on the packaging opening. The packaging plate 130 is detachably connected to the packaging opening. The packaging plate 130 is adjacent to the first side wall 150. The packaging plate 130 has a groove, and the groove has a sealing opening 120, so that the copper busbar can extend into the interior of the housing 1000 through the sealing opening 120.
[0035] A sealing gasket 110 is arranged on the packaging plate 130, and is clamped between the side wall of the groove and the sealing port 120, and is used to seal the connection between the packaging plate 130 and the copper bar.
[0036] The beneficial effects of the stack packaging structure 100 of the embodiment of the present application can be shown as follows: the copper bar with direct current is introduced into the inside of the shell 1000 through the sealing port 120, so that the copper bar can be better protected from being damaged. The sealing gasket 110 arranged between the outer part of the copper bar and the packaging plate 130 is more stable than the sealing glue of the conventional technology which is easy to be oxidized and lost, and the effect is not easy to disappear. The packaging plate 130 can be detachably installed on the packaging opening structure, so that the structure inside the shell 1000 is easier to adjust, and the non-integral structure also makes the processing more simple. The first side wall 150 is provided with a mounting port 160, so that the stack can be fixed on the first side wall 150, so as to save the use of the stack fixing support, reduce the space required for packaging, and save the cost.
[0037] Specifically, the shell 1000 is a half-enclosing structure, and the top thereof is provided with an opening for packaging. The area of the packaging plate 130 is larger than that of the packaging opening, so as to ensure that the packaging plate 130 can completely cover the packaging opening of the shell 1000. The connection between the packaging plate 130 and the packaging opening is a detachable structure, which is convenient for adjusting the inside of the shell 1000. The first side wall 150 of the shell 1000 is provided with a plurality of mounting ports 160, which are used to extend the connection structure of the stack through the mounting ports 160. The periphery of the outward side of the mounting port 160 is provided with a detachable connection structure, which is used to fix the extended connection structure of the stack on the first side wall 150 through the mounting port 160, and the stack is detachably installed on the first side wall, which greatly facilitates the replacement of the stack.
[0038] In addition, the packaging plate 130 is provided with a groove, and the sealing port 120 is arranged in the groove. The area of the groove is larger than that of the sealing port 120, so that the sealing gasket 110 can be clamped between the side wall of the groove and the sealing port 120. After being clamped, the sealing gasket 110, the sealing port 120 and the packaging plate 130 are kept at the same horizontal position, so as to ensure that the copper bar outside the sealing port 120 can be closely connected with the sealing gasket 110, and prevent the leakage caused by the height difference due to the inconsistent horizontal position. The cross-sectional area of the sealing port 120 is just enough to be completely filled with the copper bar extended into the shell 1000, so as to maintain the air tightness of the stack packaging structure 100.
[0039] It should be noted that the detachable connection structure of the embodiments of the present application can be M8 bolt fastening or any other detachable connection structure. The number of mounting ports 160 can be appropriately adjusted according to the number of stacks to be mounted. The position of the sealing port 120 can be any position where the DC copper bar can extend into the housing 1000. The material of the sealing gasket 110 can be any material that has a sealing effect.
[0040] In further embodiments of the present application, referring to Figure 1 Fig. 2, the housing 1000 further comprises a first packaging cover 140, and the housing 1000 comprises a second side wall 170 adjacent to the packaging plate 130 and the first side wall 150, respectively, and the second side wall 170 is provided with a first detection port 180, and the first packaging cover 140 is detachably mounted on the first detection port 180.
[0041] Specifically, the first side wall 150 and the second side wall 170 are connected and cannot be detached, thereby ensuring the sealing between the surfaces. However, the packaging plate 130 is detachably connected to the first side wall 150 and the second side wall 170. The second side wall 170 is provided with a first detection port 180, and the first detection port 180 is covered by the first packaging cover 140, and the area of the first packaging cover 140 is greater than the area of the first detection port 180, so as to ensure the airtightness of the stack packaging structure 100, and the connection structure between the two is detachable. The DC copper bar extending into the sealing port 120 and the copper bar of the stack itself extend to the front of the first detection port 180, and one side of the first detection port 180 facing the inside of the housing 1000 is provided with a fixing piece, one end of the fixing piece is connected with the copper bar of the stack, and the DC copper bar extends into the inside of the housing 1000 from the sealing port 120 and is detachably mounted on the fixing piece (not shown in the figure), therefore, when the inspector wants to check the copper bar, the first packaging cover 140 can be detached, and the copper bar can be detected from the first detection port 180, thereby simplifying the detection process.
[0042] It should be noted that the shape of the first detection port 180 can be any shape that can observe the copper bar inside the housing 1000. The first packaging cover 140 can be any structure that can completely cover the first detection port 180. The connection structure of the first detection port 180 and the first packaging cover 140 can be any detachable connection structure. The fixing piece can be any structure that can be fixed with the copper bar.
[0043] In further embodiments of the present application, referring to Figure 2 Fig. 3, the housing 1000 further comprises a second packaging cover 210, and the housing 1000 further comprises a third side wall 200 adjacent to the packaging plate 130 and the first side wall 150, respectively, and the third side wall 200 is opposite to the second side wall 170, and the third side wall 200 is provided with a second detection port 220, and the second packaging cover 210 is detachably mounted on the second detection port 220.
[0044] Specifically, the first side wall 150 and the third side wall 200 are connected and cannot be disassembled, thereby ensuring the sealing between the surfaces. However, the packaging plate 130 is detachably connected to the first side wall 150 and the third side wall 200. At the same time, the third side wall 200 is opposite to and parallel to the second side wall 170. A second inspection port 220 is provided on the third side wall 200. The second inspection port 220 is covered by the second packaging cover 210, and the area of the second packaging cover 210 is larger than the area of the second inspection port 220 to ensure the airtightness of the battery stack packaging structure 100. At the same time, the connection structure between the two is detachable. Through the second inspection port 220, the battery stack inspection module can be transported and fixed in the shell 1000 through the second inspection port 220. Therefore, the second inspection port 220 is mainly used as a passage for the battery stack inspection module to enter and exit, and can also be used as a detection port for daily inspection of the battery stack inspection module.
[0045] It should be noted that the shape of the second inspection port 220 can be any shape that allows for viewing the stack inspection module within the housing 1000. The area of the second inspection port 220 can be appropriately adjusted based on the size of the required inspection module. The second packaging cover 210 can be any structure that completely covers the second inspection port 220. The connection between the second inspection port 220 and the second packaging cover 210 can be any detachable connection structure.
[0046] In further embodiments of the present application, reference is made to Figure 1 and Figure 2 As shown, sealing components are provided at the connections between the packaging plate 130 , the first packaging cover 140 , the second packaging cover 210 and the housing 1000 .
[0047] Specifically, the packaging plate 130, first packaging cover 140, and first packaging cover 210 are all connected to the housing 1000 using M8 screw fasteners, creating a removable connection structure. When the packaging plate 130, first packaging cover 140, and first packaging cover 210 are connected to the housing 1000, gaps inevitably exist at the joints. Sealing strips are positioned in these gaps to ensure the seal of the stack packaging structure 100. The sealing strips are easily removed, greatly simplifying the disassembly process of the packaging plate 130, first packaging cover 140, and first packaging cover 210.
[0048] It should be noted that, in addition to sealing strips, the gaps at the joints can also be sealed with a sealing component such as sealant to ensure the sealing of the stack packaging structure 100. The connection between the packaging plate 130, the first packaging cover 140, and the first packaging cover 210 and the housing 1000 can be any detachable connection structure other than M8 fasteners.
[0049] In further embodiments of the present application, referring to Figure 1 and Figure 2 As shown, the shell 1000 further comprises a fourth side wall 230 and a bottom plate, the first side wall 150, the second side wall 170, the third side wall 200, the fourth side wall 230 and the bottom plate together enclose the shell 1000, the first side wall 150 is connected with the second side wall 170 and the third side wall 200 by welding respectively, the first side wall 150, the second side wall 170, the third side wall 200 and the fourth side wall 230 are all connected with the bottom plate by welding, and the inner surface of the shell 1000 and the one side of the packaging plate 130 facing the shell 1000 are flat and coated with insulating paint.
[0050] Specifically, the semi-enclosed structure of the shell 1000 is formed by the first side wall 150, the second side wall 170, the third side wall 200, the fourth side wall 230 and the bottom plate. Among them, the fourth side wall 230 is welded with the first side wall 150 and the second side wall 170, the third side wall 200 by friction stir welding, the fourth side wall 230 is welded with the second side wall 170, the third side wall 200 by friction stir welding, and the first side wall 150, the second side wall 170, the third side wall 200 and the fourth side wall 230 are all welded with the bottom plate by friction stir welding. So that the welding is stable, the heat affected zone is smaller when welding, this step can be realized by automation, thereby promoting the more close connection between the surface and the surface, ensuring the sealing of the stack packaging structure 100. At the same time, the connection uses friction stir welding, which can save the bolts and bolt mounting surfaces for fixing the four sides and one ground of the shell 1000, reducing the required parts, thereby reducing the required cost and lightening the weight of the stack packaging structure 100, making the whole stack packaging structure 100 more simple and compact. The inner surfaces of the shell 1000 and the packaging plate 130 are flat, and the flat structure makes it easy for water vapor to slide off the inner surface to be absorbed by the moisture absorbing sheet, thereby preventing water accumulation, which can better avoid the adverse effects caused by the contact between the internal components of the stack packaging structure 100 and the water accumulation, and the flat surface is also easier to clean, which can better maintain the internal environment of the shell 1000. The inner surfaces of the packaging plate 130 and the shell 1000 are coated with insulating paint to improve the threshold of breakdown voltage and better protect the operation inside the stack packaging structure 100.
[0051] It should be noted that: the connection method of the side surface and the bottom surface can be any connection method that can connect the side surface and the bottom surface in addition to friction stir welding. The insulating paint can be any material that can provide insulation and improve the threshold of breakdown voltage.
[0052] In further embodiments of the present application, referring to Figure 2 As shown, the mounting ports 160 are symmetrically distributed along the horizontal center axis of the first side wall 150.
[0053] Specifically, the specifications of the mounting holes 160 are uniform, so as to facilitate processing. The stacks of the electric piles are stacked and mounted in an up-down structure in the casing 1000 (not shown in the drawing), so as to reduce the length of the copper bars required for fixing the copper bars at the first detection holes 180, and to reduce the production cost. The distribution of the mounting holes 160 is symmetrical along the central axis of the first side wall 150 in the horizontal direction, so that the electric piles stacked in an up-down structure can be fixed on the first side wall 150.
[0054] It should be noted that the size of the mounting holes 160 can be adjusted according to the size of the electric piles.
[0055] In further embodiments of the present application, referring to Fig. 4, the inside of the casing 1000 is provided with a plurality of dry moisture-absorbing sheets 190. Figure 1
[0056] Specifically, the dry moisture-absorbing sheets 190 are placed in the inside of the casing 1000 without contacting the components, so as to absorb the moisture in the inside of the casing 1000, thereby reducing the water vapor content in the inside of the casing 1000, and prolonging the service life of the components.
[0057] It should be noted that the dry moisture-absorbing sheets 190 can also be placed at any position in the inside of the casing 1000 that can achieve moisture absorption.
[0058] In further embodiments of the present application, referring to Fig. 5, the outer surface of the casing 1000 is coated with an insulating oxide film (not shown in the drawing). Figure 1
[0059] Specifically, the outer surfaces of the casing 1000, the packaging plate 130, and the packaging cover are coated with an insulating oxide film, so as to reduce the conductive performance of the electric pile packaging structure 100, and to improve the threshold of the breakdown voltage of the electric pile packaging structure 100, so that the protection of the electric pile packaging structure 100 is stronger.
[0060] Specifically, the insulating oxide film can be a hard oxide film and a micro-arc oxide film, etc.
[0061] In further embodiments of the present application, referring to Fig. 6, the insulating oxide film is a 50-micron hard anode oxide film (not shown in the drawing). Figure 1
[0062] Specifically, the outer surfaces of the shell 1000, the packaging plate 130 and the packaging cover are coated with a hard anodic oxidation film, which improves the strength of the outer surfaces, reduces the conductivity of the stack packaging structure 100, and improves the breakdown voltage threshold of the stack packaging structure 100, so that the stack packaging structure 100 is more protective. The thickness of the hard anodic oxidation film is set to 50 microns, so as to maintain its certain insulation effect while reducing the production cost.
[0063] The production equipment according to the second aspect of the utility model embodiment comprises the stack packaging structure 100 according to the first aspect of the utility model embodiment.
[0064] The stack packaging structure 100 according to the embodiment of the application can better protect the copper bar from being damaged by introducing the copper bar with direct current into the inside of the shell 1000 through the sealing port 120. The sealing gasket 110 arranged between the outer part of the copper bar and the packaging plate 130 is more stable than the sealing glue of the conventional technology and the effect is not easy to disappear. The packaging plate 130 can be detachably installed on the packaging opening structure, so that the structure inside the shell 1000 is easier to adjust, and the non-integral structure also makes the processing more simple. The first side wall 150 is provided with a mounting port 160, so that the stack can be fixed on the first side wall 150, so as to save the use of the stack fixing support, reduce the space required for packaging, and save the cost. By using the stack packaging structure 100 of the application, the volume of the hydrogen fuel cell power system provided to the stack packaging structure 100 will also be relatively reduced, so the overall volume will be reduced, thereby reducing the space and material cost, and the improvement of the sealing capacity also improves the quality and service life of the hydrogen fuel cell power system to a certain extent.
[0065] Other configurations and operations of the production equipment according to the embodiment of the application are known to those skilled in the art, and will not be described in detail here.
[0066] The above describes the embodiments of the application in detail in combination with the drawings, but the application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.
Claims
1. A stack packaging structure, characterized by, include: A housing, wherein a packaging opening is provided at the top of the housing, a first side wall is provided on the housing, and a plurality of mounting openings are provided on the first side wall, wherein the mounting openings are used to connect to the battery stack so as to fix the battery stack to the first side wall; an encapsulation plate, the encapsulation plate being detachably mounted on the encapsulation opening, the encapsulation plate being detachably connected to the encapsulation opening, the encapsulation plate being adjacent to the first side wall, the encapsulation plate being provided with a groove and a sealing opening in the groove, so that the copper busbar extends into the interior of the housing through the sealing opening; A sealing gasket is provided on the packaging board, the sealing gasket is engaged between the side wall of the groove and the sealing opening, and the sealing gasket is used to seal the connection between the packaging board and the copper busbar.
2. The stack packaging structure according to claim 1, wherein It also includes a first packaging cover. The shell includes a second side wall, which is adjacent to the packaging plate and the first side wall respectively. The second side wall is provided with a first detection port, and the first packaging cover is detachably mounted on the first detection port.
3. The stack packaging structure according to claim 2, wherein It also includes a second packaging cover, and the shell also includes a third side wall, which is adjacent to the packaging plate and the first side wall respectively, and is opposite to the second side wall. A second detection port is provided on the third side wall, and the second packaging cover can be detachably installed on the second detection port.
4. The stack packaging structure according to claim 3, wherein Sealing components are provided at the connections between the packaging plate, the first packaging cover, the second packaging cover and the shell.
5. The stack package structure of claim 3, wherein, The shell also includes a fourth side wall and a bottom plate. The first side wall, the second side wall, the third side wall, the fourth side wall and the bottom plate are enclosed to form the shell. The first side wall is respectively connected to the second side wall and the third side wall by welding. The first side wall, the second side wall, the third side wall and the fourth side wall are all connected to the bottom plate by welding. The inner surface of the shell and the side of the packaging plate facing the shell are flat and are coated with insulating paint.
6. The stack package structure of claim 1, wherein, The installation openings are symmetrically distributed about the center axis of the first side wall along a horizontal direction.
7. The stack package structure of claim 1, wherein, A plurality of moisture-absorbing sheets are arranged inside the shell.
8. The stack package structure of claim 1, wherein, The outer surface of the shell is coated with an insulating oxide film.
9. The stack package structure of claim 8, wherein, The insulating oxide film is a 50-micron hard anodic oxide film.
10. A hydrogen fuel cell power system characterized by, include: The battery stack packaging structure according to any one of claims 1 to 9.