TWI820535B - Graphite felt fixed module and flow battery containing graphite felt fixed module - Google Patents

Abstract

A graphite felt fixing module is used to fix a graphite felt unit; the graphite felt fixing module includes a current collecting frame, a clamping structure and a fixed frame. The current collecting frame includes a first snapping surface and a first installation port; the snapping structure is provided on the current collecting frame and is located on the peripheral wall of the first mounting port; the fixed frame is used to combine with the current collecting frame, and the fixed frame The body includes a second clamping surface and a second installation port; when the fixed frame is combined with the current collecting frame, the first installation port is connected to the second installation port to form a receiving space for the graphite felt unit to be accommodated. And when the graphite felt unit is accommodated in the accommodation space, the peripheral sides of the graphite felt unit engage with the engaging structure, so that the graphite felt unit is fixed between the fixed frame and the current collecting frame. A flow battery is also disclosed here.

Description

Graphite felt fixed module and liquid flow containing graphite felt fixed module Battery

The present invention relates to liquid flow batteries; in particular, it refers to a graphite felt fixed module and a liquid flow battery including a graphite felt fixed module.

It is known that with the rapid development of industry, people are consuming fossil energy at an increasing rate. In addition to causing a serious shortage of fossil energy, the ecological environment is also deteriorating. Therefore, developing renewable energy to replace fossil energy has become an important development trend.

Current renewable energy energy storage technologies include redox flow batteries (RFB), hereinafter referred to as flow batteries, which can provide cyclic charging and discharging, and can also maintain voltage with high efficiency, allowing regeneration Energy can provide stable power supply.

The existing flow battery structure usually includes two battery units and an exchange membrane. The exchange membrane is arranged between the two battery units. Each battery unit is connected to a container of positive electrolyte and negative electrolyte. The positive electrolyte The liquid and negative electrolyte containers are pumped to each battery unit by pumping elements to perform electrochemical reactions to generate electrical energy.

However, each battery unit is stacked by a multi-layer structure, such as a current collecting plate, graphite felt, graphite paper, gasket and metal plate. Specifically, the current collecting plate is provided with a mounting slot for installing the graphite felt. Since the collecting plate The flow plate cannot provide the function of fixing the graphite felt. When the graphite felt is installed in the installation groove of the current collecting plate, the graphite paper needs to be covered on the outside of the graphite felt, and then the surrounding graphite paper should be fixed with gaskets so that the graphite felt can be Fixed in the installation groove of the collector plate, The metal plate is fixed on the outside of the current collecting plate relative to the graphite felt. It can be seen that the multi-layer structure of the existing battery unit makes assembly cumbersome, increases installation costs, and cannot effectively improve the effect of reducing the size of the flow battery.

In view of this, the purpose of the present invention is to provide a graphite felt fixed module and a flow battery including a graphite felt fixed module. The graphite felt fixed module can provide the function of fixing graphite felt, in addition to saving the installation of additional components, improving The assembly efficiency can also effectively reduce the size of the flow battery.

In order to achieve the above object, the present invention provides a graphite felt fixing module for fixing a graphite felt unit; the graphite felt fixing module includes a current collecting frame, a clamping structure and a fixed frame. The current collecting frame includes a first snapping surface and a first installation opening passing through the first snapping surface; the snapping structure is provided on the current collecting frame and located on the peripheral wall of the first mounting opening; the fixing The frame is used to be combined with the current collecting frame, and the fixed frame includes a second snapping surface and a second installation opening passing through the second snapping surface; when the fixed frame is combined with the current collecting frame When the first clamping surface is in contact with the second clamping surface, the first installation port is correspondingly connected to the second installation port to form an accommodation space for the graphite felt unit to accommodate, and the graphite felt unit accommodates When placed in the accommodation space, the peripheral side of the graphite felt unit engages with the engaging structure, so that the graphite felt unit is fixed between the fixed frame and the current collecting frame.

Another object of the present invention is to provide a flow battery, which includes two battery packs and an exchange membrane. The two battery packs each include a graphite felt fixed module as described in claim 1, a graphite felt unit, a metal plate and a cover plate. The current collecting frame in the graphite felt fixed module includes a first The installation surface is opposite to the first clamping surface, and a receptacle is provided on the first installation surface, and the receptacle is connected with the first installation port; the graphite felt unit is provided on the graphite felt In the fixed module, the graphite felt unit is accommodated in the accommodation space formed by the current collecting frame and the fixed frame, and the peripheral side of the graphite felt unit is clamped by the engaging structure and is Fixed on the graphite felt fixed module; the metal plate is arranged on the graphite felt fixed module, the metal plate is accommodated in the tank and is located on one side of the graphite felt unit; the exchange membrane is provided on the two Between the battery packs; when the two battery packs are combined, the exchange membrane is clamped by the two fixed frames, and the two graphite felt units are located on both sides of the exchange membrane.

The effect of the present invention is that the graphite felt fixing module of the present invention can provide the function of fixing the graphite felt unit by engaging the engaging structure on the peripheral side of the graphite felt unit, so that the graphite felt unit is fixed on the current collector. Between the frame and the fixed frame, the arrangement of other components is saved, the assembly efficiency is improved, and the overall thickness and volume of the flow battery can be reduced to achieve the effect of a miniaturized structure.

[Invention]

100: Graphite felt fixing module

110:Graphite felt unit

120:Metal plate

200:Flow battery

10:Current collecting frame

11: The first card interface

111:Second Ring Ditch

12:First installation surface

13: First installation port

131: First side wall

14: Container

141:The first ring ditch

15:The first waterproof gasket

16: Second waterproof gasket

20: Snap structure

21: Teeth

211: Groove

211A: Side notch

211B: Side groove bottom

212: contact edge

30: Fixed frame

31: Second card interface

32:Second installation surface

33: Second installation port

331:Second side wall

40:Current structure

41: Diversion Department

411:Guide trough

411A: Wide mouth end

411B: Narrow end

412:Flow channel

42:Connection part

421: Hole slot

50:Battery pack

51:Cover

511:Through hole

60:Exchange membrane

70:Third waterproof gasket

D: Interval area

S: Accommodation space

Figure 1 is a perspective view of a graphite felt fixing module according to the first embodiment of the present invention.

Figure 2 is an exploded structural view of the graphite felt fixing module according to the first embodiment of the present invention.

Figure 3 is an exploded view of the structure of the graphite felt fixing module from another perspective according to the first embodiment of the present invention.

Figure 4 is a front view of the current collecting frame and the fixed frame of the graphite felt fixed module according to the first embodiment of the present invention.

Figure 5 is a rear view of the current collecting frame and the fixed frame of the graphite felt fixed module according to the first embodiment of the present invention.

Figure 6 is a top view of the graphite felt fixing module according to the first embodiment of the present invention.

Figure 7 is a cross-sectional view taken along section line 7-7 of Figure 6 .

Figure 8 is a partial enlarged view of Figure 7.

Figure 9 is a cross-sectional view taken along section line 9-9 of Figure 6 .

Figure 10 is a perspective view of a flow battery according to a second embodiment of the present invention.

Figure 11 is an exploded structural view of a flow battery according to the second embodiment of the present invention.

Figure 12 is a front view of the components of one of the battery packs of the flow battery according to the second embodiment of the present invention.

Figure 13 is a rear view of the components of one of the battery packs of the flow battery according to the second embodiment of the present invention.

Figure 14 is a cross-sectional view of a flow battery according to a second embodiment of the present invention.

In order to illustrate the present invention more clearly, the preferred embodiments are described in detail below along with the drawings. Please refer to FIG. 1 , which shows a graphite felt fixing module 100 according to a first embodiment of the present invention, which is used to fix a graphite felt unit 110; the graphite felt fixing module 100 includes a current collecting frame 10, an engaging structure 20, A fixed frame 30 and a flow collecting structure 40.

The current collecting frame 10 is a plate body, which includes a first clamping surface 11 , a first installation surface 12 and a first installation opening 13 . The first clamping surface 11 is located on the current collecting frame 10 On one side, the first installation surface 12 is located on the other side of the current collecting frame 10 opposite to the first clamping surface 11. The first installation opening 13 is a rectangular opening for passing through the first clamping surface. The junction surface 11 and the first installation surface 12; as shown in Figures 3 and 5, in this embodiment, the current collecting frame 10 also includes a receiving groove 14, and the receiving groove 14 is provided on the first installation surface. On the surface 12 , the receptacle 14 is connected with the first installation opening 13 , and the receptacle 14 surrounds the first installation opening 13 . The receptacle 14 is used to place a metal plate 120 so that the metal plate 120 can be disposed on the current collecting frame 10. In this embodiment, the metal plate 120 is made of vanadium.

However, in other embodiments, the receiving groove 14 of the current collecting frame 10 may be omitted. The metal plate 120 can be selectively disposed on the first mounting surface 12 as long as the metal plate 120 can be disposed on the current collecting frame 10 .

The engaging structure 20 is a concave-convex structure, which is provided on the current collecting frame 10 and is located on the peripheral wall of the first installation opening 13; please refer to Figure 4, the engaging structure 20 is provided on the current collecting frame 10 On the first clamping surface 11 , the first installation opening 13 defines two opposite first side walls 131 . The clamping structure 20 has two tooth portions 21 , each of the tooth portions 21 includes a plurality of grooves 211 and a plurality of grooves 211 . abutting edge 212, the grooves 211 are continuously recessed outward from the first clamping surface 11 along the direction of each first side wall 131, wherein each groove 211 includes a groove opening 211A on one side and a groove bottom on one side. 211B, the side notch 211A penetrates the first side wall 131, the side groove bottom 211B extends outward from the side notch 211A relative to the first side wall 131, and the abutting edges 212 are respectively provided on two adjacent Between the grooves 211 , each abutting edge 212 is straightly connected to two adjacent side notches 211A, and the abutting edges 212 are in the same plane as the first side wall 131 .

In other embodiments, the structure and arrangement of the two tooth portions 21 can be adjusted according to needs. For example, the engaging structure 20 can include a tooth portion 21 disposed on a side wall of the first installation opening 13, or can The peripheral wall that includes a plurality of tooth portions 21 surrounding the first installation opening 13 is sufficient as long as the graphite felt unit 110 can be provided for snapping; the engaging structure 20 can replace the groove 211 with a protrusion protruding from the first side wall 131 . block.

The fixed frame 30 is a plate body, and the shape of the fixed frame 30 is similar to the shape of the current collecting frame 10. The fixed frame 30 is used to be combined with the current collecting frame 10; as shown in Figure 4 and Figure As shown in 5, the fixed frame 30 includes a second clamping surface 31, a second installation surface 32 and a second installation opening 33. The second clamping surface 31 is located on one side of the fixed frame 30. The second mounting surface 32 is located on the other side of the fixed frame 30 opposite to the second snapping surface 31 . The second mounting opening 33 is a rectangular opening that passes through the second snapping surface 31 and the second snapping surface 31 . Second installation surface 32. In this embodiment, the current collecting frame 10 and the fixed frame 30 are provided with perforations around the current collecting frame. 10 and the fixed frame 30 can be combined by bolts.

As shown in FIGS. 7 to 9 , when the fixed frame 30 is combined with the current collecting frame 10 , the first snapping surface 11 of the current collecting frame 10 and the second snapping surface of the fixed frame 30 31 are in contact and fit with each other, and the first installation port 13 is correspondingly connected to the second installation port 33 to form an accommodation space S. The accommodation space S provides accommodation for the graphite felt unit 110; as shown in Figure 9 and Figure 10 As shown, when the graphite felt unit 110 is accommodated in the accommodation space S, the outlines of both sides of the graphite felt unit 110 respectively contact the contact edges 212 and simultaneously contact the two first side walls 131 As for the two second side walls 331, since the size of the graphite felt unit 110 is slightly larger than the inner diameter of the accommodation space S, the remaining contours on both sides of the graphite felt unit 110 are squeezed by the space and will be stuck on each side respectively. In the notch 211A, the peripheral side of the graphite felt unit 110 is engaged with the engaging structure 20, so that the graphite felt unit 110 is fixed between the fixed frame 30 and the current collecting frame 10, and then the metal The pole plate 120 is accommodated in the receptacle 14 , and the metal pole plate 120 is against one side of the graphite felt unit 110 ; in this way, the design of the graphite felt fixing module 100 can not only fix the graphite felt unit 110 The function can save installation costs and improve assembly efficiency, and can also accommodate the metal plate 120, thereby effectively providing a miniaturized structure.

In addition, in this embodiment, the current collecting frame 10 also includes a first waterproof gasket 15 and a second waterproof gasket 16 to prevent the electrolyte from leaking. The first waterproof gasket 15 is provided in the container. 14, wherein the bottom of the groove 14 is provided with a first annular groove 141, and the first waterproof gasket 15 is disposed in the first annular groove 141. When the metal plate 120 is disposed in the groove 14, The metal plate 120 will press against the first waterproof gasket 15 and be in close contact with the bottom of the groove 14; the second waterproof gasket 16 is provided on the first clamping surface 11, wherein the first waterproof gasket 16 is disposed on the first clamping surface 11. A second annular groove 111 is provided on the clamping surface 11 surrounding the first installation opening 13 and the engaging structure 20. The second waterproof gasket 16 is disposed in the second annular groove 111. When the fixed frame 30 and the When the current collecting frame 10 is combined, the second clamping surface 31 will press against the second waterproof gasket 16 and be in close contact with the first clamping surface 11 to strengthen the connection between the first clamping surface 11 and the first clamping surface 11 . The tightness between the second clamping surfaces 31. However, in other embodiments, the first waterproof gasket 15 and the second waterproof gasket 16 can be omitted.

The current collecting structure 40 is used to conduct electrolyte, and the current collecting structure 40 is located on one side of the engaging structure 20; when the fixed frame 30 is combined with the current collecting frame 10, the current collecting structure 40 connects the The engaging structure 20; detailed description, as shown in FIG. 4, the current collecting structure 40 includes two flow guide parts 41 and two connecting parts 42. The two flow guide parts 41 are provided on the first clamp of the current collecting frame 10. On the joint 11 , the two flow guide portions 41 are respectively located on one side of the tooth portion 21 of the engaging structure 20 , and a spacing area D is formed between each of the flow guide portions 41 and each of the tooth portions 21 , in which each The guide portion 41 includes a guide groove 411 and a first channel 412. This embodiment is illustrated with one of the guide portions 41. The guide groove 411 is provided on one side of the grooves 211 of the tooth portion 21. The groove 411 has a wide end 411A and a narrow end 411B. The wide end 411A is disposed toward the first side wall 131 corresponding to the tooth portion 21 , and the spacing area D is located between the wide end 411A of the guide groove 411 and the narrow end 411B. Between the grooves 211 , the narrow end 411B is tapered and extended from the wide end 411A. The flow channel 412 is connected to the narrow end 411B of the guide groove 411 for transporting electrolyte.

The two connecting parts 42 are provided on the second clamping surface 31 of the fixed frame 30 . The second installation opening 33 defines two opposite second side walls 331 . The two connecting parts 42 correspond to the two second side walls 331 respectively. Located on both sides of the second installation opening 33, as shown in Figure 4, the two connecting parts 42 respectively have a plurality of holes 421, and the holes 421 are arranged along the direction of each second side wall 331; Figure 8 and As shown in FIG. 9 , when the fixed frame 30 is combined with the current collecting frame 10 , each connecting portion 42 is located in each of the spacing areas D. At this time, one end of the hole slot 421 of each connecting portion 42 corresponds to The grooves 211 of each tooth portion 21 are connected, and the other ends of the holes 421 of each connecting portion 42 are connected to the guide grooves 411 of each guide portion 41, so that each guide portion 41 and each tooth Department 21 The connecting portions 42 are connected, so that the electrolyte can flow through the accommodating space S through the current collection structure 40 .

In other embodiments, the flow guide portion 41 and the connection portion 42 of the current collecting structure 40 are not limited to being separately provided on the current collecting frame 10 and the fixed frame 30 . The flow guide portion 41 and the connecting portion can also be arranged separately. 42 are disposed on the current collecting frame 10 at the same time, as long as the current collecting structure 40 and the engaging structure 20 can be connected.

Therefore, through the above structural design of the graphite felt fixing module 100 of the present invention, when the graphite felt unit 110 is disposed in the accommodation space S, the peripheral side of the graphite felt unit 110 can engage with the engaging structure, so that the graphite felt unit 110 can engage with the engaging structure. The felt unit 110 can be directly fixed between the current collecting frame 10 and the fixed frame 30, thereby saving the installation of other components, and can also accommodate the metal plate 120, so that the graphite felt fixed module 100 of the present invention can achieve Improve assembly efficiency.

In addition, the matching design of the current collecting structure 40 and the engaging structure 20 allows the electrolyte to efficiently penetrate directly into the graphite felt unit 110 through the grooves 211 of the engaging structure 20 during transportation, thereby improving electrolysis. learning reaction efficiency.

Please refer to FIG. 10 , which shows a flow battery 200 according to a second embodiment of the present invention, which includes two battery packs 50 , an exchange membrane 60 and a third waterproof gasket 70 .

The two battery packs 50 each include the graphite felt fixing module 100, the graphite felt unit 110 and the metal plate 120 as in the first embodiment. The two battery packs 50 each also include a cover plate 51; as shown in Figure 11 to As shown in FIG. 13 , the structures of the graphite felt fixing module 100 , the graphite felt unit 110 and the metal plate 120 are the same as those described in the above embodiments, and will not be described again here.

The cover plate 51 is disposed on the first mounting surface 12 of the current collecting frame 10, and the cover plate 51 seals the slot of the accommodating groove 14 so that the metal plate 120 is fixed in the accommodating groove 14; As shown in Figure 14, a through hole 511 is drilled through the center of the cover plate 51, and the through hole 511 is used to provide an electrode. The rod penetrates (not shown in the figure). When the metal pole plate 120 is disposed in the groove 14, the electrode rod can penetrate into the through hole 511 and press against the metal pole plate 120, so that the electrode rod can be connected externally. The circuit discharges.

The exchange membrane 60 is disposed between the two battery packs 50; when the two battery packs 50 are combined, the exchange membrane 60 is clamped by the two fixed frames 30, and the two graphite felt units 110 are respectively located on the exchange membrane. Both sides of the membrane 60.

The third waterproof gasket 70 is disposed between the two battery packs 50, wherein the third waterproof gasket 70 is disposed on the second mounting surface 32 of one of the fixed frames 30; when the two battery packs 50 are combined , the second mounting surfaces 32 of the two fixed frames 30 will press against the third waterproof gasket 70 tightly, so that the second mounting surfaces 32 of the two fixed frames 30 are in close contact, and the third waterproof gasket 70 surrounds the exchange membrane 60 . In other embodiments, the third waterproof gasket 70 can be omitted.

Therefore, the flow battery 200 of the present invention has a simple structure. Since the structure of the graphite felt fixing module 100 can provide the function of fixing the graphite felt, it can effectively save the installation of other components, improve assembly efficiency, and also reduce the flow of liquid. The overall thickness and volume of the battery 200 achieve the effect of miniaturized structure.

The above are only the best possible embodiments of the present invention. Any equivalent changes made by applying the description and patent scope of the present invention should be included in the patent scope of the present invention.

100: Graphite felt fixing module

10:Current collecting frame

111:Second Ring Ditch

13: First installation port

131: First side wall

16: Second waterproof gasket

20: Snap structure

21: Teeth

30: Fixed frame

32:Second installation surface

33: Second installation port

331:Second side wall

40:Current structure

41: Diversion Department

42:Connection part

Claims (16)

A graphite felt fixing module for fixing a graphite felt unit; the graphite felt fixing module includes: a current collecting frame, which includes a first snap-in surface and a first installation opening through which the first snap-in connector is inserted surface, wherein the first installation opening is defined with two opposite first side walls; a locking structure is provided on the current collecting frame and located on the peripheral wall of the first installation opening, and the locking structure includes two teeth, Each tooth portion has a plurality of grooves, the grooves are continuously recessed outward from the first clamping surface along the direction of each first side wall; and a fixed frame is used to combine with the current collecting frame, The fixed frame includes a second snapping surface and a second installation opening passing through the second snapping surface; when the fixed frame is combined with the current collecting frame, the first snapping surface and the second snapping surface The snapping surfaces are in contact with each other, and the first installation port is correspondingly connected to the second installation port to form an accommodation space for the graphite felt unit to be accommodated, and when the graphite felt unit is accommodated in the accommodation space, the graphite felt unit The size is slightly larger than the inner diameter of the accommodation space, the peripheral side of the graphite felt unit is engaged with the engaging structure, and the remaining contours on both sides of the graphite felt unit are individually engaged with the grooves, so that the graphite felt unit is fixed between the fixed frame and the current collecting frame. The graphite felt fixing module of claim 1, wherein each tooth portion has a plurality of abutting edges, and the abutting edges are individually arranged between two adjacent grooves. When the fixed frame and the current collector When the frames are combined, the contours of both sides of the graphite felt unit are respectively in contact with the contact edges. The graphite felt fixing module of claim 2, wherein each groove includes a side groove and a side groove bottom, the side groove opening is provided on the first side wall, and the side groove bottom is opposite to the first side wall. Extending outward from the side slots, each of the abutting edges is straightly connected to two adjacent side slots, and the abutting edges are on the same plane as the first side wall. A graphite felt fixing module for fixing a graphite felt unit; the graphite felt fixing module includes: a current collecting frame, which includes a first snap-in surface and a first installation opening through which the first snap-in connector is inserted surface, wherein the first installation opening is defined with two opposite first side walls; a locking structure is provided on the current collecting frame and located on the peripheral wall of the first installation opening, and the locking structure includes two teeth, Each tooth portion has a plurality of grooves, and the grooves are continuously recessed outward from the first clamping surface along the direction of each first side wall; a fixed frame is used to combine with the current collecting frame, the The fixed frame includes a second snapping surface and a second installation opening passing through the second snapping surface; when the fixed frame is combined with the current collecting frame, the first snapping surface and the second snapping surface The joint surfaces are in contact with each other, and the first installation opening is connected to the second installation opening to form an accommodation space for the graphite felt unit to be accommodated, and when the graphite felt unit is accommodated in the accommodation space, the graphite felt unit is The engaging structure is engaged with the peripheral side, so that the graphite felt unit is fixed between the fixed frame and the current collecting frame; and a current collecting structure is located on one side of the engaging structure; when When the fixed frame is combined with the current collecting frame, the current collecting structure is connected to the engaging structure, wherein the current collecting structure includes two flow guide parts, and the two flow guide parts are provided on the first side of the current collecting frame. The clamping surface is respectively located on one side of each tooth portion, and a spacing area is formed between each guide portion and each tooth portion, wherein each guide portion includes a guide groove and a first channel. The guide groove Provided on one side of the grooves of the tooth portion, the guide groove has a wide end and a narrow end, the wide end is disposed toward the first side wall corresponding to the tooth portion, and the spacing area is located on the guide Between the wide end of the groove and the grooves, the narrow end is tapered and extended from the wide end, and the flow channel is connected to the narrow end of the guide groove for transporting electrolyte. A graphite felt fixing module used to fix a graphite felt unit; the graphite felt fixing module includes: A current collecting frame includes a first clamping surface and a first installation opening passing through the first clamping surface, wherein the first installation opening defines two opposite first side walls; a clamping structure, Provided on the current collecting frame and on the peripheral wall of the first installation opening, the engaging structure includes two tooth portions, each of which has a plurality of grooves. The grooves are formed along the first engaging surface along each side. The direction of the first side wall is continuously recessed outward; a fixed frame is used to combine with the current collecting frame. The fixed frame includes a second snap-in surface and a second installation opening through which the second snap-in connector is inserted. surface; when the fixed frame is combined with the current collecting frame, the first snap-in surface abuts the second snap-in surface, and the first installation port is correspondingly connected to the second installation port to form an accommodation space. For the graphite felt unit to be accommodated, and when the graphite felt unit is accommodated in the accommodation space, the peripheral side of the graphite felt unit is engaged with the engaging structure, so that the graphite felt unit is fixed between the fixed frame and the between the current collecting frames; and a current collecting structure, which is located on one side of the engaging structure; when the fixed frame is combined with the current collecting frame, the current collecting structure connects to the engaging structure, The current collecting structure includes two flow guide parts. The two flow guide parts are provided on the first clamping surface of the current collecting frame and are respectively located on one side of each tooth part, and each of the flow guide parts is connected to the first clamping surface of the current collecting frame. A spacing area is formed between each of the tooth portions, wherein the current collecting structure includes two connecting portions provided on the second clamping surface of the fixed frame, and the second installation opening defines two opposite second side walls. The connection portions correspond to the two second side walls and are respectively located on both sides of the second installation opening; when the fixed frame is combined with the current collecting frame, each of the connection portions is located in each of the separation areas, and each of the flow guide portions It is connected with each of the tooth portions through each of the connecting portions, wherein the two connecting portions respectively have a plurality of slots, and the slots are arranged in the direction of each of the second side walls; when the fixed frame and the current collecting frame When combined, one end of the slots of each connecting part is connected to the grooves of each tooth part, and the other end of the slots of each connecting part is connected to each guide part. The graphite felt fixed module as described in claim 1, 4 or 5, wherein the current collector The frame has a first mounting surface and a receiving groove. The first mounting surface is opposite to the first snapping surface. The receiving groove is provided on the first mounting surface. The receiving groove is connected to the first mounting surface. The openings are connected, and the groove surrounds the first installation opening and is used for placing a metal plate. The graphite felt fixing module according to claim 6, wherein the current collecting frame includes a first waterproof gasket, and the first waterproof gasket is disposed in the container. When the metal plate is disposed in the container, , the metal plate will press against the first waterproof gasket and be in close contact with the bottom of the tank. The graphite felt fixing module according to claim 1, 4 or 5, wherein the current collecting frame includes a second waterproof gasket, the second waterproof gasket is provided on the first clamping surface and surrounds the first installation and the engaging structure; when the fixed frame is combined with the current collecting frame, the second engaging surface will press against the second waterproof gasket and be in close contact with the first engaging surface. A flow battery, including: two battery packs, each including: the graphite felt fixed module as described in claim 1, the current collecting frame in the graphite felt fixed module includes a first installation surface facing away from The first clamping surface and a receiving groove are provided on the first mounting surface. The receiving groove is connected with the first mounting port, wherein the first mounting port defines two opposite first side walls. The coupling structure includes two tooth parts, each tooth part has a plurality of grooves, and the grooves are continuously recessed outward from the first clamping surface along the direction of each first side wall; a graphite felt unit is provided on the In the graphite felt fixed module, the graphite felt unit is accommodated in the accommodation space formed by the current collecting frame and the fixed frame, wherein the size of the graphite felt unit is slightly larger than the inner diameter of the accommodation space, And the peripheral side of the graphite felt unit is clamped by the engaging structure, and the remaining contours on both sides of the graphite felt unit are individually clamped into the grooves and fixed to the graphite felt fixing module; a metal plate is provided In the graphite felt fixed module, the metal plate is accommodated in the groove in and located on one side of the graphite felt unit; and a cover plate, which is disposed on the first installation surface of the current collecting frame and seals the slot of the container; an exchange membrane is disposed between the two battery packs when the two battery packs are combined, the exchange membrane is clamped by the two fixed frames, and the two graphite felt units are located on both sides of the exchange membrane. The flow battery of claim 9, wherein each tooth portion has a plurality of contact edges, and the contact edges are respectively provided between two adjacent grooves. When the fixed frame and the current collecting frame When combined, the contours of both sides of the graphite felt unit are respectively in contact with the contact edges. The flow battery of claim 10, wherein each of the grooves includes a side groove opening and a side groove bottom, the side groove opening is provided on the first side wall, and the side groove bottom is formed by the side wall relative to the first side wall. The side notches extend outward, and each of the abutting edges is straightly connected to two adjacent side notches, and the abutting edges are on the same plane as the first side wall. A flow battery, including: two battery packs, each including: the graphite felt fixed module as described in claim 4, the current collecting frame in the graphite felt fixed module includes a first installation surface facing away from The first clamping surface and a receiving groove are provided on the first mounting surface. The receiving groove is connected with the first mounting port, wherein the first mounting port defines two opposite first side walls. The coupling structure includes two tooth parts, each tooth part has a plurality of grooves, and the grooves are continuously recessed outward from the first clamping surface along the direction of each first side wall, wherein each graphite felt fixing module is The current collecting structure is located on one side of the engaging structure; when the fixed frame is combined with the current collecting frame, the current collecting structure is connected to the engaging structure, and the current collecting structure includes two flow guide parts. Two flow guide portions are provided on the first clamping surface of the current collecting frame, and are respectively located on one side of each tooth portion, and a spacing area is formed between each flow guide portion and each of the tooth portions. The guide portion includes a guide groove and a first channel. The guide groove is located on one side of the grooves of the tooth portion. The guide groove has a wide end and a narrow end, and the wide end corresponds to the tooth. The portion is disposed toward the first side wall, and the spacing area is located between the wide end of the guide groove and the grooves. The narrow end is tapered and extends from the wide end. The flow channel is connected to the narrow end of the guide groove. The mouth end is used for transporting electrolyte; a graphite felt unit is provided in the graphite felt fixed module, and the graphite felt unit is accommodated in the accommodation space formed by the current collecting frame and the fixed frame. , and the peripheral side of the graphite felt unit is clamped by the engaging structure and is fixed on the graphite felt fixed module; a metal plate is provided on the graphite felt fixed module, and the metal plate is accommodated in The container is located on one side of the graphite felt unit; and a cover plate is provided on the first installation surface of the current collecting frame and seals the slot of the container; an exchange membrane is provided on the two Between the battery packs; when the two battery packs are combined, the exchange membrane is clamped by the two fixed frames, and the two graphite felt units are located on both sides of the exchange membrane. A flow battery, including: two battery packs, each including: the graphite felt fixed module as described in claim 5, the current collecting frame in the graphite felt fixed module includes a first installation surface facing away from The first clamping surface and a receiving groove are provided on the first mounting surface. The receiving groove is connected with the first mounting port, wherein the first mounting port defines two opposite first side walls. The coupling structure includes two tooth parts, each tooth part has a plurality of grooves, and the grooves are continuously recessed outward from the first clamping surface along the direction of each first side wall, wherein each graphite felt fixing module is The current collecting structure is located on one side of the engaging structure; when the fixed frame is combined with the current collecting frame, the current collecting structure is connected to the engaging structure, and the current collecting structure includes two flow guide parts. The two flow guide parts are arranged on the first clamping surface of the current collecting frame and are individually Located on one side of each tooth portion, and forming a spacing area between each of the flow guide portions and each of the tooth portions, the current collection structure includes two connecting portions provided on the second clamping surface of the fixed frame, The second installation opening is defined with two opposite second side walls, and the two connecting portions corresponding to the two second side walls are respectively located on both sides of the second installation opening; when the fixed frame is combined with the current collecting frame, each The connecting portion is located in each of the spacing areas, and each of the flow guide portions and each of the tooth portions are connected through each of the connecting portions. The two connecting portions respectively have a plurality of slots, and the slots are along each of the second side walls. arranged in the direction; when the fixed frame is combined with the current collecting frame, one end of the slots of each connecting part is connected to the grooves of each tooth part, and the slots of each connecting part are The other end is connected to each of the flow guide parts; a graphite felt unit is provided in the graphite felt fixed module, and the graphite felt unit is accommodated in the accommodation space formed by the current collecting frame and the fixed frame. , and the peripheral side of the graphite felt unit is clamped by the engaging structure and is fixed on the graphite felt fixed module; a metal plate is provided on the graphite felt fixed module, and the metal plate is accommodated in The container is located on one side of the graphite felt unit; and a cover plate is provided on the first installation surface of the current collecting frame and seals the slot of the container; an exchange membrane is provided on the two Between the battery packs; when the two battery packs are combined, the exchange membrane is clamped by the two fixed frames, and the two graphite felt units are located on both sides of the exchange membrane. The flow battery according to claim 9, 12 or 13, wherein the graphite felt fixing module includes a first waterproof gasket, and the first waterproof gasket is disposed in the container. When the metal plate is disposed in the container, When in the tank, the metal plate will press against the first waterproof gasket and be in close contact with the bottom of the tank. The flow battery as claimed in claim 9, 12 or 13, wherein the graphite felt fixing module includes a second waterproof gasket, the second waterproof gasket is provided on the first clamping surface and Surrounding the first installation opening and the engaging structure; when the fixed frame is combined with the current collecting frame, the second engaging surface will press against the second waterproof gasket and contact the first engaging surface. adaptation. The flow battery as described in claim 9, 12 or 13 includes a third waterproof gasket, the third waterproof gasket is provided between the two battery packs, and the fixed frame in each graphite felt fixed module includes There is a second installation surface, which is opposite to the second clamping surface; when the two battery packs are combined, the two second installation surfaces will press against the third waterproof gasket, so that The two fixed frames are closely connected, and the third waterproof gasket surrounds the exchange membrane.

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