TW201324938A - Electrochemical battery cell assessment holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a holder for electrochemical cell evaluation, the holder for electrochemical cell evaluation is used in evaluating performance of a cell without causing adverse effects, and characterized by simple installation and easy assembly of the furnace due to the miniaturization of the device,. SOLUTION: Laminating a fuel gas diffusion plate (31) for clamping part (30), a fuel electrode collector (32), a cell unit (34), a pair of ceramic gasket (33),an air electrode collector (35), and an air gas diffusion plate (36). The clamping is performed in such a way that, under the condition that the alumina-made fuel electrode side frame (10) and the air side frame (20) abutting against to each other, the fuel electrode side storage recess (11) and the air electrode side storage recess (21) are opposed to each other. Furthermore, when the clamping part (30) is clamped between the frames (10,20), a ceramic spring (43) is inserted into an air side through hole (26), and a nut (42 ) is used to tightly screw the bolt (41) inserted from the fuel electrode side, thereby completing the assembly.

Description

Electrochemical cell evaluation device

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an electrochemical cell evaluation holder for evaluating the performance characteristics of a solid oxide fuel cell (SOFC) using a flat battery cell.

A solid oxide fuel cell (SOFC) is a fuel cell using an oxygen ion conductive solid electrolyte as an electrolyte, and two gases of a fuel and an oxidant are separately supplied to each other by an oxygen ion conductive solid electrolyte. The fuel electrode and the air electrode are interposed, and an electrochemical reaction is performed on each of the electrodes to take out electric power to the outside.

This solid oxide fuel cell is a low-noise and high-efficiency power generation method. Since the operating temperature is high and the output density is high, the device can be miniaturized, and since the electrolyte is solid, it is easy to handle and utilizes high temperature. Since the exhaust gas has an advantage of being able to achieve overall cogeneration, etc., research and development are progressing, for example, in order to be practically used as a large-scale power generation system or a distributed fixed-type power supply.

Further, with the research and development of such a solid oxide fuel cell, as a cell evaluation device for a solid oxide fuel cell for evaluating the performance of a fuel cell, for example, a device shown in the cited document 1 is known, or A high-temperature electrochemical cell evaluation holder or the like of the triple tube structure of Non-Patent Document 1 or 2.

Patent Document 1: Japanese Laid-Open Patent Publication No. Hei 6-223857

Non-Patent Document 1: "Electrochemical Measurement Method" edited by the Society of Electrochemicals, Corporate Society of Electrochemicals (1972), pp. 154-155

Non-Patent Document 2: SOFC Research Society, "The 12th SOFC Research Conference Presentation Keynote," (2003), pp. 94-95

However, the general electrochemical cell evaluation device is capable of performing an evaluation test of a battery cell based on the same atmospheric temperature as the operating temperature of the SOFC (about 800 ° C), and thus has heat resistance, and also A material such as stainless steel is used as a material for the device casing to achieve workability or inexpensive manufacturing cost.

However, in the evaluation experiment based on the operating temperature of the SOFC, since the operating temperature is high, the component (for example, Cr) in the metal constituting the frame evaporates and the oxidized oxide (for example, Cr ₂ O ₃ ) adheres to the battery. The cells are contaminated on the surface and thus have an adverse effect on the evaluation test.

Further, the general electrochemical cell evaluation holder including the device disclosed in each of the above documents is a vertical triplet structure in which a battery cell is sandwiched by a gas introduction tube from both sides, and therefore can be used only for The electric furnace corresponding to this configuration is inconvenient in handling at the time of installation because the holder itself is large.

Further, in such an electrochemical cell evaluation holder, the clip A gas-tight structure for preventing gas leakage of fuel gas and air gas can be realized by providing a pair of glass O-rings through the cell portion and melting the heat in the electric furnace to seal the two sides of the cell portion. However, since the O-ring is made of glass, it is necessary to remove or clean the glass O-ring used for the next evaluation.

Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide an electrochemical cell evaluation holder which is not defective in battery cells for evaluating performance. The effect is excellent in the ease of setting and ease of assembly of the electric furnace based on the miniaturization of the device.

In order to achieve the above object, the evaluation device for an electrochemical cell according to the first aspect of the invention is characterized in that it includes a fuel electrode side frame made of alumina and an air electrode made of alumina. a side frame body, a battery cell portion, a ceramic pair of adhesion pads, and a fixing member; the fuel electrode side frame body made of alumina is a fuel gas diffusion plate and a fuel electrode for uniformly diffusing fuel gas The order of the current collector is accommodated in the bottom portion, and a fuel gas introduction pipe that communicates with the fuel gas and a fuel electrode side storage recess that discharges the fuel gas to be supplied, and a plurality of fixed portions for fixing are formed. a fuel electrode side insertion hole; the air electrode side frame made of alumina is collected from the bottom in the order of the air gas diffusion plate and the air electrode current collector that uniformly diffuse the air gas And an air-air introduction hole that is connected to the air-gas introduction pipe that supplies the air gas and the air-gas discharge pipe that discharges the supplied air-gas, and a plurality of air-side insertion holes for fixing; The battery cell portion is formed by interposing an electrolyte between a fuel electrode and an air electrode. The ceramic pair of adhesion pads are arranged to prevent gas leakage and interpose the outer peripheral edge portion of the battery cell portion. The fixing member includes: an alumina bolt, an alumina nut screwed to the bolt, and one of the fuel electrode side insertion hole or the air electrode side insertion hole. In the ceramic spring side, the fuel electrode side body and the air electrode side frame are disposed on the fuel electrode side receiving recess and the air electrode side on the one surface of the pair of the insulating pads on one surface of the battery cell portion. The bolt is inserted into the fuel electrode side insertion hole and the air electrode side insertion hole in a state in which the housing recess is opposed to the mounting recess, and is screwed to the nut. Tight fixed.

Further, the evaluation holder for an electrochemical cell according to the second aspect of the invention is the current for collecting the current in the electrochemical cell evaluation holder according to the first aspect of the patent application. The current take-out lead wire to be taken out, the voltage measuring lead wire for performing voltage measurement of the battery cell portion, and the airtight terminal for temperature sensor for measuring temperature in the vicinity of the cell portion are respectively mounted on the above-mentioned The gas inflow port of the air gas introduction pipe and the gas inflow port of the fuel gas introduction pipe are characterized.

Further, the evaluation holder for an electrochemical cell according to the third aspect of the invention is the above-mentioned air gas in the electrochemical cell evaluation holder according to the first or second aspect of the patent application. The diffusion plate and the fuel gas diffusion plate are formed in accordance with the size of the cell portion of the battery, and the fuel gas diffusion plate and the air gas diffusion plate may be replaced depending on the type of the battery cell to be used. , for its characteristics.

Further, in the electrochemical cell evaluation holder according to any one of the first to third aspects of the invention, in the evaluation device for evaluating an electrochemical cell according to the fourth aspect of the invention. The fuel electrode side housing recess and the air electrode side housing recess are provided with a gas introduction groove for introducing the supplied gas and a gas for discharging the supplied gas. The groove, the flow rate per unit time of the gas discharge groove, and the flow rate per unit time of the gas introduction groove are such that each of the supplied gas is maintained in the fuel electrode side housing recess for a predetermined time or It is a relationship of the state in the air-side accommodation recessed part mentioned above.

According to the evaluation device for an electrochemical cell of the present invention, since the material of the fuel electrode side frame and the air electrode side frame is made of alumina, the material of the frame body is based on evaporation by evaluating the temperature inside the furnace during the test. There is no fear of adverse effects on the cell portion of the battery, and the cell portion can be accurately performed. Evaluation test. Further, the fuel electrode diffusion plate and the fuel electrode side storage recess of the fuel electrode side current collector are housed in the fuel electrode side housing, and the air gas diffusion plate and the air electrode side current collector can be accommodated in the air electrode side housing. Since the air electrode side housing recesses can be formed to a different extent, the holder body can be made compact, and it is easy to accommodate the electric furnace, and the electric furnace to be used is not limited, and can provide a versatility. Excellent holder for electrochemical cell evaluation.

Further, the pair of adhesion pads between the cell portion and the respective frame bodies are made of a ceramic having elasticity, so that it is possible to solve the cleaning such as the replacement of the glass O-rings as in the prior art. It is cumbersome and can be evaluated more smoothly.

Further, by using the fuel gas diffusion plate and the air gas diffusion plate which form the gas diffusion portion in the area of the cell portion, the gas can be efficiently supplied to the cell portion.

Further, the relationship between the gas introduction groove formed in the fuel electrode side housing recess and the air electrode side housing recess and the size of the groove of the gas discharge groove is the flow rate per unit time of the gas discharge groove and each unit of the gas introduction groove. Since the flow rate of time is formed so as to maintain the state in which the supplied gas is filled in the housing area of each housing recess for a predetermined time, the fuel cell or the air gas can be reliably supplied to the battery cell portion.

Hereinafter, with reference to the form used in the practice of the present invention, reference is made to the accompanying The drawings are explained in detail. Further, the present invention is not limited to the embodiment, and other forms, embodiments, and operational techniques that can be carried out according to the embodiment, which are familiar to those skilled in the art, are included in the scope of the present invention.

First, the structure of the electrochemical cell evaluation holder of the present invention will be described with reference to Fig. 1 .

As shown in Fig. 1 or Fig. 2, the basic structure of the electrochemical cell evaluation holder 1 of the present example is such that the holding member 30 is sandwiched by the fuel electrode side housing 10 (lower in the figure) In the state between the air electrode side frame 20 (upper in the figure), it is assembled by being fixed by the fixing member 40.

The fuel electrode side casing 10 is formed in a rectangular parallelepiped shape formed of alumina having an effect of preventing contamination of the battery cell portion 34, and is formed by uniformly diffusing fuel gas from the bottom portion. The fuel gas diffusion plate 31 serves as a fuel electrode side housing recess 11 that accommodates a storage region of the fuel electrode current collector 32.

Further, the fuel electrode side body 10 has a thickness or a size that can accommodate the fuel gas diffusion plate 31 or the fuel electrode current collector 32, and can be formed with a fuel electrode that can be filled with the battery cell portion 34. The fuel electrode side of the fuel gas to the extent that the power can be sufficiently generated can be accommodated to the extent of the concave portion 11 .

The fuel electrode side receiving recess 11 is formed with a fuel gas introduction groove 12 that communicates with the fuel gas introduction pipe 2 that supplies the fuel gas provided in the casing, as shown in Fig. 3(a), and is formed and discharged. Combustion The fuel gas discharge pipe 3 through which the fuel gas discharge pipe 3 of the feed gas communicates.

The relationship between the size of the fuel gas introduction groove 12 and the fuel gas discharge groove 13 is the flow rate per unit time of the fuel gas discharge groove 13 and the flow rate per unit time of the fuel gas introduction groove 12, so that the supply can be maintained. The relationship between the state in which the fuel gas is filled in the storage region of the fuel electrode side housing recess 11 for a predetermined period of time, that is, the use condition such as the supply amount of the fuel gas, the discharge amount, and the volume of the storage area, and the power generation is necessary. It is sufficient that the fuel gas is sufficiently supplied to the fuel electrode of the battery cell portion 34 to such an extent.

Further, an insertion groove 15 is provided at a substantially central position of the bottom of the fuel electrode side housing recess 11 for insertion into a fuel gas diffusion plate 31 and a fuel electrode current collector 32 which are housed as needed. A zirconia pressing spring 14 supported by the sandwiched battery cell portion 34 in a state in which the fuel is in close proximity.

Further, in the fuel electrode side casing 10, a plurality of fuel electrode side insertion holes 16 for locking and fixing the air electrode side casing 20 by the fixing member 40 are formed (in the illustrated example, It is formed at the four corners of the frame, and the aperture is appropriately determined in accordance with the fixing member 40 used.

Similarly to the fuel electrode side casing 10, the air electrode side casing 20 is resistant to the high temperature during the evaluation test, and has a rectangular parallelepiped shape formed of alumina having an effect of preventing contamination of the battery cell portion 34, and the bottom portion is formed by the bottom portion. The air gas diffusion plate 36 that uniformly diffuses the air gas and the air electrode side accommodation recess 21 that accommodates the storage region of the air electrode current collector 35 are sequentially formed. Further, the thickness or size of the air electrode side housing 20 is such that the air gas diffusion plate 36 or the air electrode current collector 35 can be accommodated, and the air electrode which can be filled with the battery cell portion 34 can be formed. The air electrode side of the air gas to the extent that the power can be sufficiently generated can be accommodated to such an extent as to accommodate the recess 21 .

The air-side introduction recessed portion 21 is formed in the air-electrode-side recessed portion 21, and the air-introducing groove 22 that communicates with the air-intake pipe 4 that supplies the air gas provided in the casing is formed as shown in the third (b), and is formed and discharged. The air gas discharge pipe 5 through which the air gas discharge pipe 5 of the supplied air gas communicates is discharged.

The relationship between the air gas introduction groove 22 and the groove size of the air gas discharge groove 23 is the flow rate per unit time of the air gas discharge groove 23 and the flow rate per unit time of the air gas introduction groove 22, so that the supply can be maintained. The relationship between the state in which the air gas is filled in the storage region of the air-side accommodation recess 21 for a predetermined period of time, that is, the air required for power generation in consideration of the use conditions such as the amount of supply of air, the amount of discharge, and the volume of the storage area. It is sufficient that the gas is sufficiently supplied to the air electrode of the battery cell portion 34 to such an extent that it is formed.

Further, an insertion groove 25 for inserting the air gas diffusion plate 36 and the air electrode current collector 35 to be accommodated as needed is provided at a substantially central position of the bottom of the bottom of the air electrode side housing recess 21 The zirconia pressing spring 24 supported by the sandwiched battery cell portion 34 in a state in which the air is in close proximity.

Further, in the air-electrode-side housing 20, a plurality of locks for fixing the fuel-electrode-side housing 10 by the fixing member 40 are formed. The air electrode side insertion hole 26 (formed in the figure example, penetrates through the four corners of the frame, and the hole diameter is appropriately determined in accordance with the fixing member 40 used).

Further, the fuel electrode side insertion hole 16 and the air electrode side insertion hole 26 are formed such that the fuel electrode side housing recess 10 and the air electrode side housing recess 21 face each other, and the fuel electrode side housing 10 and the air are formed. When the pole-side housing 20 is in a state of being opposed to the top, the number of the holes is equal to each other so that the bolts 41 of the fixing member 40 described below can be inserted, and the respective holes are formed in a straight line between the opposing holes. position.

Further, as shown in Fig. 2, the gas introduction ports of the fuel gas introduction pipe 2 and the air gas introduction pipe 4 are separately provided with the introduction of the current generated by the battery cells 34 by the fuel electrode. The current take-out wire 6 taken out by the body 32 or the air electrode current collector 35, and the voltage measuring wire 7 for measuring the voltage of each electrode of the battery cell portion 34, and the temperature sense for measuring the temperature in the vicinity of the cell portion 34 The hermetic terminal 50 (the fuel electrode side airtight terminal 50a and the air electrode side airtight terminal 50b) used for the detector 8.

As shown in Fig. 4, the hermetic terminal 50 (50a, 50b) is a gas introduction port that is installed in the fuel gas introduction pipe 2 (or the air gas introduction pipe 4), and is provided with a fuel gas ( The terminal body 51 of the gas introduction path 51a introduced into the holder and the air gas) are screwed into the terminal body 51 via the O-ring 52 while being inserted into each of the gas introduction pipes 2 and 4 to prevent The first engagement member 53 that leaks gas, and the second engagement member 56 that is screwed to the terminal body 51 in a state in which the terminal introduction member 54 and the O-ring 55 are interposed to prevent gas leakage, and is configured to be electrically The flow-extracting lead wire 6, the voltage measuring wire 7, and the air-tight terminal for introducing a predetermined portion in the holder from the outside without leaking gas.

The holding member 30 is composed of a fuel gas diffusion plate 31, a fuel electrode current collector 32, a pair of adhesion pads 33, a battery cell portion 34, an air electrode current collector 35, and an air gas diffusion plate 36. The fuel gas diffusion plate 31 is provided with a fuel gas diffusion region 31d for diffusing the fuel gas supplied from the fuel gas introduction pipe 2 and uniformly supplied to the fuel cell portion 34, and the fuel electrode collector 32 is a nickel mesh or the like which is stable in a reducing atmosphere, and the pair of the adhesion pads 33 are elastically disposed to face each other as the outer peripheral edge portion 34a of the battery cell portion 34 for gas leakage prevention. Ceramic (for example, vermiculite, mica, alumina fiber, etc.), the cell portion 34 is a fuel electrode such as YSZ/Ni cermet, and an air electrode such as (La, Sr) MnO ₃ or the like In the meantime, an electrolyte such as YSZ (antimony trioxide stabilized zirconia) or ScSZ (oxygen stabilized zirconia) is integrated, and the collector 35 for the air electrode is not easily used at a high temperature. Oxidized precious metals such as gold (Au) or platinum (Pt) nets The air-gas diffusion plate 36 is provided with an air-gas diffusion region 36d for diffusing the air gas supplied from the air-intake pipe 4 and uniformly supplying the air electrode to the battery cell portion 34.

As shown in FIG. 1 or FIG. 2, when the fuel element side body 10 is placed below or the air electrode side body 20 is placed above, the fuel gas diffusion plate 31 is used as the holding member 30. Fuel electrode collector 32, tight The pad 33, the battery cell portion 34, the air electrode current collector 35, and the air gas diffusion plate 36 are sandwiched in a state in which they are stacked. At this time, the fuel gas diffusion plate 31 and the fuel electrode current collector 32 are housed in the fuel electrode side housing recessed portion 11, and the air gas diffusion plate 36 and the air electrode current collector 35 are housed in the air electrode side. The recess 21 is accommodated. Further, one of the adhesion pads 33 is interposed between the outer peripheral edge portion 34a of the battery cell portion 34 and the outer edge portion of the fuel side housing recess portion 11, and the other adhesive pad 33 is interposed between the battery cells 34. The outer peripheral edge portion 34a is located between the outer peripheral edge portion of the air-side receiving recess portion 21.

Further, as shown in FIGS. 5(a) and 5(b), the fuel gas diffusion plate 31 and the air gas diffusion plate 36 are each formed with a plurality of grooves which are passages of the supplied gas. The gas passages 31a and 36a having the shape and the gas introduction through grooves 31b and 36b for introducing the supplied gas, and the gas discharge through grooves 31c and 36c for discharging the supplied gas are used as the fuel gas diffusion region 31d. The air gas diffusion region 36d functions. Further, the fuel gas diffusion plate 31 and the air gas diffusion plate 36 are prepared to have an area of the cell portion 34 [a square of 100 mm in the fifth (a) figure and a square 50 mm in the fifth (b) figure] The shape of the battery cell 34 can be efficiently supplied to the battery cell portion 34 by appropriately replacing the size of the battery cell portion 34 to be used. At this time, the size of the adhesion pad 33 is also changed depending on the size of the fuel gas diffusion plate 31 and the air gas diffusion plate 36 to be used.

Also, as shown in Figures 5(a) and 5(b), in this form In the state, the relationship between the size of the holes of the gas introduction through grooves 31b and 36b and the gas discharge through grooves 31c and 36c is determined by the fuel gas discharge groove 13 (or the air gas discharge groove 23) and the fuel gas introduction groove 12 ( Or the relationship between the size of the air gas introduction groove 22) is appropriately set. In the example of the drawing, the gas introduction through grooves 31b and 36b are formed to be larger than the gas discharge through grooves 31c and 36c.

In addition, the sizes of the gas introduction through grooves 31b and 36b and the gas discharge through grooves 31c and 36c are appropriately set in accordance with the relationship between the size of the grooves of the fuel gas introduction groove 12 and the fuel gas discharge groove 13, and thus It is not necessary that the sizes of the holes of the both sides are different, and it is also possible to make the same size depending on the use conditions and the like.

The fixing member 40 is made of an alumina bolt 41 and an alumina nut 42 that is screwed to the bolt 41 and inserted into the fuel electrode side insertion hole 16 or the air electrode side insertion hole 26 . The ceramic spring 43 on the side is formed. In the example of the drawing, the fuel electrode side housing 10 and the air electrode side housing 20 are opposed to each other with the fuel electrode side housing recess 11 and the air electrode side housing recess 21 facing each other, and the laminated layer is sandwiched. The holding member 30 (the fuel gas diffusion plate 31, the fuel electrode current collector 32, the adhesion pad 33, the battery cell portion 34, the adhesion pad 33, the air electrode current collector 35, and the air gas diffusion plate 36) Sequential stacking). Then, the ceramic spring 43 is inserted into the air side insertion hole 26 due to the influence of the thermal expansion or the like of the atmosphere temperature in the evaluation test, and the bolt inserted through the fuel electrode side insertion hole 16 is locked by the nut 42. 41.

Hereinafter, according to the embodiment shown in FIG. 1 or FIG. 2, The assembly sequence of the above-described electrochemical cell evaluation holder 1 will be described.

First, the fuel gas diffusion plate 31, the fuel electrode current collector 32, the adhesion pad 33, the battery cell portion 34, the adhesion pad 33, the air electrode current collector 35, and the air gas diffusion plate 36 of the clamp member 30 are sandwiched. The layering is performed in accordance with the direction in which the fuel electrode side housing 10 and the air electrode side housing 20 are sandwiched. Then, the fuel electrode side housing body 10 and the air electrode side housing body 20 are opposed to each other with the fuel electrode side housing recessed portion 11 facing the air electrode side housing recess portion 21, and the holding member 30 is held. The fuel electrode side body 10 and the air electrode side body 20 are interposed. At this time, the insertion groove 15 of the fuel electrode side housing recess 11 and the insertion groove 25 of the air electrode side housing recess 21 are separately inserted into the pressing springs 14 and 24.

Then, the ceramic spring 43 is inserted into the air electrode side insertion hole 26 with the clamp member 30 interposed between the respective frames 10 and 20, and the fuel electrode side insertion hole is locked by the nut 42. The bolt 41 inserted in the 16 is combined with the air electrode side housing 20 and the air electrode side housing 20 to complete the assembly work of the electrochemical cell evaluation holder 1.

As described above, the above-described electrochemical cell evaluation holder 1 is a fuel gas diffusion plate 31 as a sandwiching member 30, a fuel electrode current collector 32, a battery cell portion 34, and a pair of ceramics. The fuel electrode side frame 10 of alumina is formed so that the fuel electrode side storage recessed portion 11 faces the air electrode side housing recessed portion 21 so that the fuel electrode side storage recessed portion 11 faces the air gas diffusion plate 36. The air electrode side frame 20 is sandwiched in a state of being opposed to the top. Further, a clamping is sandwiched between the frames 10 and 20 In the state of the component 30, the ceramic spring 43 is inserted into the air electrode side insertion hole 26, and the bolt 41 inserted by the fuel electrode side insertion hole 16 is locked and fixed by the nut 42.

Therefore, since the material of the fuel electrode side casing 10 and the air electrode side casing 20 is made of alumina, there is no possibility that the material of the casing is evaporated due to the furnace temperature during the evaluation test, and the battery cell portion 34 is caused. The evaluation of the adverse effect is performed, and the evaluation test of the battery cell portion 34 can be performed with high reliability. In addition, the fuel electrode diffusion plate 31 and the fuel electrode side housing recessed portion 11 of the fuel electrode side current collector 32 are housed in the fuel electrode side housing 10, and the air gas diffusion plate 36 and the air can be accommodated in the air electrode side housing body 20. The air-side accommodation recesses 21 of the collectors 35 for the pole-sides can be formed to a different extent. Therefore, the size of the holder body is reduced, and it is easy to accommodate the electric furnace, and the electric furnace to be used is not used. It is limited to provide a versatility electrochemical cell evaluation holder 1 excellent in versatility.

Further, the pair of the adhesion pads 33 between the battery cells 34 and the respective frames 10 and 20 are made of a ceramic which is elastic, so that it is possible to solve the cleaning based on the replacement of the conventional glass O-rings, etc. The complexity and the ability to conduct evaluation tests more smoothly.

Further, by using the fuel gas diffusion plate 31 and the air gas diffusion plate 36 which form the gas diffusion portion in the area of the battery cell portion 34, the gas can be efficiently supplied to the battery cell portion 34.

Further, the size of the groove of the fuel gas introduction groove 12 and the air gas introduction groove 22 and the fuel gas discharge groove 13 and the air gas discharge groove 23 formed in the fuel electrode side housing recess portion 11 and the air electrode side housing recess portion 21 is closed. The flow rate per unit time of the gas discharge groove and the flow rate per unit time of the gas introduction groove is such that the supplied gas is maintained in the storage area of each of the accommodation recesses 11 and 21 for a predetermined time. Since the relationship is formed, the fuel cell or the air gas can be reliably supplied to the battery cell portion 34.

1‧‧‧Electrical battery cell evaluation holder

2‧‧‧fuel gas introduction tube

3‧‧‧fuel gas discharge pipe

4‧‧‧Air gas introduction tube

5‧‧‧Air gas exhaust pipe

6‧‧‧Wire for current extraction

7‧‧‧Wire for voltage measurement

8‧‧‧Temperature Sensor

10‧‧‧Fuel side frame

11‧‧‧Fuel side containment recess

12‧‧‧fuel gas introduction trench

13‧‧‧fuel gas discharge ditch

14‧‧‧Resist springs

15‧‧‧Into the ditch

16‧‧‧fuel pole side through hole

20‧‧‧Air side frame

21‧‧‧Air side containment recess

22‧‧‧Air gas introduction ditch

23‧‧‧Air gas discharge ditch

24‧‧‧Repression spring

25‧‧‧Into the ditch

26‧‧‧Air side insertion hole

30‧‧‧Clamping members

31‧‧‧fuel gas diffusion plate

31a‧‧‧ gas passage

31b‧‧‧through groove for gas introduction

31c‧‧‧through grooves for gas discharge

31d‧‧‧fuel gas diffusion zone

32‧‧‧Fuel collector

33‧‧‧Close mat

34‧‧‧ battery cell

35‧‧‧Air collectors

36‧‧‧Air gas diffusion plate

36a‧‧‧ gas passage

36b‧‧‧through grooves for gas introduction

36c‧‧‧through grooves for gas discharge

36d‧‧‧Air gas diffusion zone

40‧‧‧Fixed components

41‧‧‧ bolt

42‧‧‧ nuts

43‧‧‧Ceramic spring

50‧‧‧ airtight terminal

50a‧‧‧Fuel side airtight terminal

50b‧‧‧Air-side airtight terminal

51‧‧‧ terminal body

51a‧‧‧ gas introduction road

52, 55‧‧‧O-ring

53‧‧‧1st engaging member

54‧‧‧Terminal introduction member

56‧‧‧2nd engaging member

Fig. 1 is an exploded perspective view of the electrochemical cell evaluation holder of the present invention.

Fig. 2 is a cross-sectional view taken along the line A-A' of the electrochemical cell evaluation holder of the present invention.

Fig. 3(a) is a plan view of the fuel electrode side casing.

Fig. 3(b) is a plan view of the air electrode side frame.

Fig. 4 is a view showing the gas introduction groove and the gas discharge groove formed in the fuel electrode side frame and the air electrode side frame of the electrochemical cell evaluation holder of the present invention, and the airtightness to be attached to the grooves. A partial cross-section of the terminal.

Fig. 5(a) is an explanatory view showing an embodiment of a fuel gas diffusion plate and an air gas diffusion plate for a square 100 mm battery cell used in the electrochemical cell evaluation device of the present invention.

Fig. 5(b) is an explanatory view showing an embodiment of a fuel gas diffusion plate and an air gas diffusion plate for a square 50 mm battery cell used in the electrochemical cell evaluation device of the present invention.

1‧‧‧Electrical battery cell evaluation holder

2‧‧‧fuel gas introduction tube

3‧‧‧fuel gas discharge pipe

4‧‧‧Air gas introduction tube

5‧‧‧Air gas exhaust pipe

10‧‧‧Fuel side frame

11‧‧‧Fuel side containment recess

12‧‧‧fuel gas introduction trench

13‧‧‧fuel gas discharge ditch

16‧‧‧fuel pole side through hole

20‧‧‧Air side frame

21‧‧‧Air side containment recess

22‧‧‧Air gas introduction ditch

23‧‧‧Air gas discharge ditch

26‧‧‧Air side insertion hole

30‧‧‧Clamping members

31‧‧‧fuel gas diffusion plate

31a‧‧‧ gas passage

31b‧‧‧through groove for gas introduction

31c‧‧‧through grooves for gas discharge

31d‧‧‧fuel gas diffusion zone

32‧‧‧Fuel collector

33‧‧‧Close mat

34‧‧‧ battery cell

35‧‧‧Air collectors

36‧‧‧Air gas diffusion plate

41‧‧‧ bolt

42‧‧‧ nuts

43‧‧‧Ceramic spring

Claims (4)

A holder for evaluating an evaluation cell for an electrochemical cell, comprising: a fuel electrode side frame made of alumina, an air electrode side frame made of alumina, a battery cell portion, and a pair of ceramics a pad and a fixing member; the fuel-electrode-side frame made of alumina is housed in a bottom portion in the order of a fuel gas diffusion plate and a fuel electrode current collector that uniformly diffuse the fuel gas, and is formed with respective communication supplies. a fuel gas introduction pipe of the fuel gas, a fuel electrode side housing recess of the fuel gas discharge pipe that discharges the supplied fuel gas, and a plurality of fuel electrode side insertion holes for fixing; the air electrode side frame made of alumina The air gas diffusion plate and the air electrode current collector that uniformly diffuse the air gas are housed in the order from the bottom, and the air gas introduction pipe that supplies the air gas is separately connected and the supplied air gas is discharged. The air-side receiving recess of the air-gas discharge pipe and the plurality of air-side insertion holes for fixing; the cell portion is separated from the fuel electrode and the air electrode a pair of ceramic mats for preventing gas leakage and having an outer peripheral edge portion interposed therebetween, and having elasticity; the fixing member has a bolt made of alumina, and a ceramic nut that is screwed into the bolt, and a ceramic spring that is inserted into one of the fuel electrode side insertion hole or the air electrode side insertion hole, the fuel electrode side frame body and the air electrode side The frame body is disposed on one side of the pair of close-contact pads on one side of the battery cell portion The fuel electrode side insertion recessed portion and the air electrode side housing recessed portion are opposed to each other, and the bolt is inserted into the fuel electrode side insertion hole and the air electrode side insertion hole, and The screw of the nut is locked and fixed. The holder for evaluating an electrochemical cell according to the first aspect of the invention, wherein the current extraction lead wire for extracting the collected current and the voltage measuring wire for measuring the voltage of the battery cell portion are introduced And a gas-tight terminal for the temperature sensor for measuring the temperature in the vicinity of the cell portion of the battery, which is separately installed in the gas inlet port of the air gas introduction pipe and the gas inlet port of the fuel gas introduction pipe. The electrochemical cell evaluation device according to the first or second aspect of the invention, wherein the air gas diffusion plate and the fuel gas diffusion plate are in accordance with an area of the cell portion of the battery. Forming, the fuel gas diffusion plate and the air gas diffusion plate may be replaced depending on the type of the battery cell to be used. The holder for evaluating an electrochemical cell according to any one of the first aspect, wherein the fuel electrode side housing recess and the air electrode side housing recess are separately provided: a gas introduction groove for introducing the supplied gas and a gas discharge groove for discharging the supplied gas, a flow rate per unit time of the gas discharge groove, and the gas The flow rate per unit time of the introduction groove is a relationship in which the respective supplied gas is maintained in the fuel electrode side housing recess or the air electrode side housing recess for a predetermined period of time.