WO2012041241A1

WO2012041241A1 - Fuel battery apparatus for accelerating cathode surface air flow

Info

Publication number: WO2012041241A1
Application number: PCT/CN2011/080331
Authority: WO
Inventors: 马润芝; 石辉; 施建; 张学国; 程炳烨
Original assignee: Ma Runzhi; Shi Hui; Shi Jian; Zhang Xueguo; Cheng Bingye
Priority date: 2010-09-30
Filing date: 2011-09-29
Publication date: 2012-04-05

Abstract

The present invention relates to an air electrode fuel battery apparatus. The fuel battery apparatus for accelerating cathode surface air flow of the present invention comprises at least two single-stage batteries, wherein each single-stage battery comprises a shell, an electrolyte cavity, a reactant collecting cavity, and an electrochemical reaction cavity located between the electrolyte cavity and the reactant collecting cavity. A side of the electrochemical reaction cavity is disposed with an anode socket for inserting an anode, an anode electrode plate inserted in the electrochemical reaction cavity and an air cathode electrode plate at both sides of the anode electrode plate. The air cathodes attach to both sides of the electrochemical reaction cavity, and an air circulation structure is further comprised. The present invention solves the problem of heat dissipation of heat generated during the electrochemical reaction when multiple stages of batteries are used at the same time, and provides sufficient oxygen for the air cathode electrode to make full use of the electrode material.

Description

Fuel cell device for accelerating air flow on cathode surface

The present invention relates to an air electrode fuel cell, and more particularly to a fuel cell device for accelerating air flow on a cathode surface.

Background technique

The fuel cell consists of an anode, a cathode, and an ion-conducting electrolyte. It works like a normal chemical cell. The air electrode fuel cell uses a metal or alloy as the anode, and the cathode uses the air electrode. The fuel cell can be used in electric vehicles, notebook computers and mobile phone batteries. Currently, it is mainly used in emergency power sources. The principle is electrochemical reaction. Therefore, it will release heat during work. At present, the research on fuel cells does not pay attention to the heat dissipation problem of the battery. Especially when multi-stage batteries are used in parallel or in series, each stage of the battery in operation is exothermic, which will cause the whole The heat of the battery pack is difficult to discharge, which affects the performance and service life of other components.

Summary of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a fuel cell device for accelerating the air flow on the surface of the cathode to solve the heat dissipation problem of heat generated during the electrochemical reaction when the multi-stage battery is used together, and is an air cathode. The electrode provides sufficient oxygen.

In order to solve the above problems, the technical solution adopted by the present invention is: a fuel cell device for accelerating air flow on a cathode surface, which is composed of at least two single-stage batteries, wherein each single-stage battery includes a casing and an electrolyte chamber. a reactant collection chamber, an electrochemical reaction chamber between the electrolyte chamber and the reactant collection chamber, one side of the electrochemical reaction chamber is provided with an anode socket for inserting the anode, and inserted into the electrochemical reaction chamber An anode electrode plate, and an air cathode electrode plate on both sides of the anode electrode plate, the air cathode is attached to both sides of the electrochemical reaction chamber, and further includes an air circulation structure.

In order to achieve a good heat dissipation effect, and to achieve the heat of the electrochemical reaction chamber during the reaction process and In the preferred embodiment of the present invention, the air circulation structure includes a self-circulating passage inside the casing and an outer circulation passage between two adjacent single-stage batteries.

The self-circulating passage of the present invention is located in a passage connecting the electrolyte chamber, the electrochemical reaction chamber and the reactant collecting chamber inside the casing, and comprises a passage between the anode fixed plate and the anode electrode plate or at the anode electrode plate. A passage between the inner walls of the housing at one end of the chemical reaction chamber.

Preferably, the self-circulating passage of the present invention is located inside the casing, and includes a passage between the anode fixed plate and the anode electrode plate and a passage between the anode electrode plate and the inner wall of the one end of the chemical reaction chamber.

The outer circulation channel of the present invention is a channel formed between adjacent single-stage cells by two adjacent two-stage batteries through a combined structure.

In order to ensure the formation of the channel and the effective connection between the multi-stage batteries, the engaging structure is provided with two or more ribs on the outer wall of the upper electrolyte chamber of a single-stage battery and a single stage adjacent thereto. A corresponding concave rib is disposed on the outer wall of the upper electrolyte chamber of the battery.

In a preferred embodiment of the present invention, the engaging structure comprises a rib and a concave rib on the outer wall of the upper electrolyte chamber of a single-stage battery, and an outer wall of the electrolyte chamber of the adjacent single-stage battery. Set matching ribs and concave ribs.

The engaging structure of the present invention is a bolt fixing device provided on the above rib, which is provided with a screw hole on a rib of a single-stage battery and a lower electrolyte chamber, and a rib of a single-stage battery adjacent thereto Bolts are placed on the lower electrolyte chamber, and two adjacent single-stage batteries are fixed by bolt fixing means.

In order to seal the lower end of the space between two adjacent single-stage cells, to ensure that the hot gas generated in the electrochemical reaction flows along the fixed channel, the thickness of the electrolyte chamber of the present invention and the rib on one side wall thereof Or the sum of the thicknesses of the concave ribs is equal to the thickness of the reactant collection chamber.

In the solution of the present invention, the ribs or the ridges are disposed on the outer wall in parallel with each other in the longitudinal direction. Preferably, the two ribs or concave ribs are disposed on the outer wall in a narrow width and a narrow figure-eight shape.

In order to allow sufficient space between the electrochemical reaction chambers between adjacent two-stage cells for heat exchange, The specification further accelerates the air flow on the surface of the cathode, and the thickness of the single-stage electrochemical reaction chamber is smaller than the thickness of the electrolyte chamber and the reactant collection chamber.

In a preferred embodiment, the fuel cell device of the present invention for accelerating air flow on the surface of the cathode further comprises a cathode reaction heat exchange structure.

Wherein, the cathode reaction heat exchange structure comprises an insulated cathode fixed barrier disposed on a front side and a back side of the electrochemical reaction chamber, and the cathode fixed grid is provided with a protrusion.

Preferably, the fuel cell device of the present invention for accelerating the flow of cathode surface air further comprises an anode sealing device.

The anode sealing device of the present invention comprises an elastic sealing gasket and an anode fixing plate, wherein the anode fixing plate is connected to one end of the anode electrode plate, and the elastic sealing gasket is located between the anode fixing plate and the anode socket, the elastic sealing gasket The anode is located between the anode fixing plate and the anode socket, and the inner side of the anode fixing plate is provided with a rib, the rib is matched with the anode socket; and the inner side of the anode fixing plate is further provided with an annular rib. The size of the annular rib is matched to the elastic sealing jaw, which is sealed by a sealing device and fixed in the electrochemical reaction chamber.

Preferably, the anode sealing device of the present invention further comprises a limiting block at a corresponding position on the housing at both ends of the anode socket and a roller fixing spring strip respectively mounted on the limiting block respectively .

The beneficial effects of the invention are:

1. The power source used in the present invention uses an alloy or a metal as an anode and a gas-based fuel cell, so that it has low pollution, does not need to store electric energy by the power grid, can generate current independently of operation, and therefore has low cost and the like.

2. The multi-stage external circulation type air electrode fuel cell of the present invention is a plurality of single-stage batteries fixedly combined by ribs and concave ribs, so that adjacent single-stage batteries are firmly combined, and are not easily scattered during use, which is convenient. Disassembled.

3. The main advantages of the present invention are: a plurality of single-stage batteries are fixed to each other by ribs and concave ribs, The specification also forms a channel between adjacent single-stage cells, and because the sum of the thickness of the upper electrolyte chamber and the thickness of the rib on one side wall is equal to the thickness of the lower electrolyte chamber, two adjacent ones are ensured. The lower end of the space between the single-stage batteries is sealed to form a chimney-like structure, so that the hot gas generated in the reaction flows upward along the fixed groove, and heat is exchanged between the battery casing and the electrolyte while dissipating heat. And the circulating flow of the electrolyte is further accelerated, and the electrochemical reaction is further accelerated. In addition, since the thickness of the electrochemical reaction chamber in the middle of the single-stage battery is smaller than the thickness of the upper and lower electrolyte chambers, two adjacent single-stage batteries are fixed to each other. The channel in the middle position has a large volume to form an air passage, and the air enters the air passage through the side of the single-stage battery, and enters into the electrochemical reaction chamber through the micro-hole to provide sufficient oxygen for the cathode reaction, which is more complete reaction. Complete, to maximize the utilization of the electrode material.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

DRAWINGS

1 is a schematic view showing the structure of a single-stage battery of a fuel cell device for accelerating air flow on a cathode surface according to the present invention; FIG. 2 is a schematic view showing the internal structure of a single-stage battery of a fuel cell device for accelerating air flow on a cathode surface according to the present invention;

3 is a schematic view showing a single-stage battery snap-fit structure of a fuel cell device for accelerating air flow on a cathode surface according to the present invention;

4 is a schematic view showing a single-stage battery snap-fit structure of a fuel cell device for accelerating air flow on a cathode surface according to the present invention;

Figure 5 is a schematic view showing an embodiment of a fuel cell device for accelerating air flow on a cathode surface of the present invention;

6 is a schematic view showing the structure of a multi-stage battery device of a fuel cell device for accelerating air flow on a cathode surface according to the present invention;

Figure 7 is a cross-sectional view of a passage between two single-stage batteries of a fuel cell device for accelerating air flow on a cathode surface of the present invention. Instruction manual

detailed description

As shown in FIG. 1, the fuel cell device for accelerating the air flow on the cathode surface of the present invention is composed of at least two single-stage batteries, wherein each single-stage battery includes a casing, an electrolyte chamber 1, and a reactant collection chamber 3. An electrochemical reaction chamber 2 between the electrolyte chamber 1 and the reactant collection chamber 3, one side of the electrochemical reaction chamber 2 is provided with an anode socket for insertion of the anode, and inserted into the electrochemical reaction chamber 2 An anode electrode plate 5, and an air cathode electrode plate on both sides of the anode electrode plate, the air cathode electrode is attached to both sides of the electrochemical reaction chamber 2; it further includes an air circulation structure.

As shown in FIG. 2 and FIG. 3, in order to achieve a good heat dissipation effect and timely remove the heat of the electrochemical reaction chamber 2 during the reaction, in this embodiment, in a preferred embodiment, the air circulation structure It includes a self-circulating channel inside the battery and an outer circulation channel between two adjacent single-stage batteries.

As shown in FIG. 6 and FIG. 7, the outer circulation channel of the present invention is a channel 8 formed between adjacent single-stage cells by two adjacent two-stage batteries through a one-by-one structure.

In one embodiment of the present invention, the self-circulating passage is located in a passage of the interior of the casing that communicates with the electrolyte chamber, the electrochemical reaction chamber, and the reactant collection chamber, and includes a passage between the anode fixed plate and the anode electrode plate. 21 or a channel 22 between the anode electrode plate electrode plate 5 and the chemical reaction chamber 2 - the inner wall of the end case.

As shown in FIG. 2, in another embodiment of the present invention, preferably, the self-circulating passage of the present invention is located inside the casing, and includes a passage 21 located between the anode fixing plate 6 and the anode electrode plate 5 and located at A channel 22 between the anode electrode plate 5 and the chemical reaction chamber 2, the inner wall of the end housing.

As shown in FIG. 3 and FIG. 4, in order to ensure the formation of the channel and the effective connection between the multi-stage batteries, the engaging structure is provided with two or more convex portions on the outer wall of the upper electrolyte chamber of a single-stage battery. The rib 1 1 and the corresponding concave rib 12 are provided on the outer wall of the upper electrolyte chamber of the adjacent single-stage battery.

As shown in FIG. 5, in an embodiment of the present invention, preferably, the engaging structure comprises a rib 11 and a concave rib 12 respectively disposed on an outer wall of the upper electrolyte chamber of a single-stage battery. Adjacent single It is stated that the outer wall of the upper electrolyte chamber of the book-level battery is provided with matching ribs 1 1 and concave ribs 12.

In the solution of the present invention, the ribs 11 or the concave ribs 12 are disposed on the outer wall in parallel with each other in the longitudinal direction. Preferably, the two ribs or EJ-shaped ribs are disposed on the outer wall in a narrow width and a narrow figure-eight shape.

In another embodiment of the present invention, in order to seal the lower end of the space between two adjacent single-stage cells, the hot gas generated in the electrochemical reaction is ensured to flow along the fixed channel, and the electrolyte chamber of the present invention The sum of the thickness of the rib 11 or the concave rib 12 on the side wall of one side is equal to the thickness of the reactant collecting chamber 3.

As shown in FIG. 5, preferably, in order to allow sufficient space between the electrochemical reaction chambers between adjacent two-stage batteries for heat exchange, the air flow on the cathode surface is further accelerated, and the single-stage electric power according to the present invention The thickness of the electrochemical reaction chamber 2 is smaller than the thickness of the electrolyte chamber 1 and the reactant collection chamber 3 to maintain a certain distance between the electrochemical reaction chambers of two adjacent single-stage cells to form the heat exchange chamber 9.

In a preferred embodiment, the fuel cell device of the present invention for accelerating the flow of cathode surface air further comprises a cathodic reaction heat exchange structure.

Wherein, the cathode reaction heat exchange structure comprises an insulated cathode fixed barrier 23 disposed on the front and back sides of the electrochemical reaction chamber, and the cathode fixed barrier is provided with a protrusion.

In a preferred embodiment, the fuel cell device of the present invention for accelerating air flow to the cathode surface further includes an anode sealing device.

The anode sealing device of the present invention comprises an elastic gasket 4 and an anode fixing plate 6, the anode fixing plate 6 is connected to one end of the anode electrode plate 5, and the elastic sealing gasket 4 is located between the anode fixing plate 6 and the anode socket. The elastic gasket is located between the anode fixing plate and the anode socket, and the inner side of the anode fixing plate is provided with a rib, the rib is matched with the anode socket; the inner side of the anode fixing plate is further provided An annular rib having a size matching the elastic sealing jaw, the anode The electrode plate of the book is sealed by a sealing device and fixed in the electrochemical reaction chamber.

In a preferred embodiment, the anode sealing device of the present invention further includes a limiting block at a corresponding position on the housings respectively disposed at two ends of the anode socket, and two ends of the roller respectively mounted on the limiting block. Fixed spring strip.

The embodiments described above are only a few preferred embodiments of the present invention. The above embodiments may also provide a concave-convex engaging structure on the cathode fixing plate, and an outer wall on both sides of the upper electrolyte chamber of the single-stage battery. At least one rib is provided on the upper side to form a channel between adjacent single-stage batteries. Further, the ribs may be two or more, and the positional relationship between the ribs is not limited to parallel or splayed. It is therefore within the scope of the invention to make the usual variations and substitutions of those skilled in the art within the scope of the invention.

Claims

Claim

A fuel cell device for accelerating air flow on a cathode surface, comprising at least two single-stage batteries, wherein each single-stage battery comprises a casing, an electrolyte chamber, a reactant collection chamber, located in the electrolyte chamber and reacting An electrochemical reaction chamber between the collection chambers, wherein: one side of the electrochemical reaction chamber is provided with an anode socket for inserting the anode, and an anode electrode plate for inserting into the electrochemical reaction chamber, and an anode electrode plate On both sides of the air cathode, the air cathode is attached to both sides of the electrochemical reaction chamber, which also includes an air circulation structure.

2. The fuel cell device for accelerating air flow on a cathode surface according to claim 1, wherein: said air circulation structure comprises a self-circulation passage inside the casing and an outer circulation between two adjacent single-stage batteries. aisle.

3. The fuel cell device for accelerating air flow on a cathode surface according to claim 2, wherein: said self-circulating passage is located inside said housing communicating with said electrolyte chamber, said electrochemical reaction chamber, and said reactant collection chamber The passage includes a passage between the anode fixed plate and the anode electrode plate or a passage between the anode electrode plate and the inner wall of the one end of the chemical reaction chamber.

4. The fuel cell device for accelerating air flow on a cathode surface according to claim 2, wherein: said self-circulating passage is located inside the casing, and includes a passage between the anode fixed plate and the anode electrode plate and is located at the anode A passage between the electrode plate and the inner wall of the one end of the chemical reaction chamber.

5. The fuel cell device for accelerating air flow on a cathode surface according to claim 2, wherein: said outer circulation channel is a two-stage two-stage battery through a "" combination structure, adjacent to a single-stage battery The channel formed between.

6. The fuel cell device for accelerating air flow on a cathode surface according to claim 5, wherein: the engaging structure is provided with two or more ribs on an outer wall of the upper electrolyte chamber of a single-stage battery. Corresponding concave ribs are provided on the outer wall of the upper electrolyte chamber of the adjacent single-stage battery.

7. The fuel cell device for accelerating air flow on a cathode surface according to claim 5, wherein: said engaging structure comprises ribs and concave ribs respectively disposed on an outer wall of the upper electrolyte chamber of a single-stage battery. And matching the ribs and concaves on the outer wall of the upper electrolyte chamber of the adjacent single-stage battery The claim is ribbed.

The fuel cell device for accelerating air flow on a cathode surface according to any one of claims 5 to 7, wherein: the engaging structure is a bolt fixing device provided on the rib, and is in a single The ribs of the battery and the lower electrolyte chamber are provided with screw holes, and bolts are arranged on the ribs of the adjacent single-stage batteries and the lower electrolyte chamber, and two adjacent single-stage batteries are fixed by bolt fixing means.

The fuel cell device for accelerating air flow on a cathode surface according to any one of claims 5 to 7, wherein: the thickness of the electrolyte chamber is the thickness of a rib or a concave rib on a side wall thereof And equal to the thickness of the reactant collection chamber.

The fuel cell device for accelerating air flow on a cathode surface according to any one of claims 5 to 7, wherein: said rib or concave rib is disposed on the outer wall in parallel with each other in the longitudinal direction.

The fuel cell device for accelerating air flow on a cathode surface according to any one of claims 5 to 7, wherein: the two ribs or concave ribs are disposed on the outer wall to have a width, a width, and a narrow figure. .

The fuel cell device for accelerating air flow on a cathode surface according to any one of claims 1 to 11, wherein: the thickness of the single-stage electrochemical reaction chamber is larger than that of the electrolyte chamber and the reactant collection chamber. The thickness is small.

A fuel cell apparatus for accelerating air flow on a cathode surface according to any one of claims 1 to 12, characterized in that it further comprises a cathode reaction heat exchange structure.

14. The fuel cell device for accelerating air flow on a cathode surface according to claim 13, wherein: said cathode reaction heat exchange structure comprises an insulated cathode fixed barrier disposed on a front side and a back side of said electrochemical reaction chamber, said A protrusion is provided on the cathode fixed barrier.

15. A fuel cell apparatus for accelerating air flow to a cathode surface according to any of claims 1-14, further comprising an anode sealing means.

16. The fuel cell device for accelerating air flow on a cathode surface according to claim 15, wherein: the anode sealing device comprises an elastic gasket and an anode fixing plate, and the anode fixing plate is connected to one end of the anode electrode plate. The elastic gasket is located between the anode fixing plate and the anode socket. The elastic gasket 权利 is located between the anode fixing plate and the anode socket, and the inner side of the anode fixing plate is provided with a rib, and the rib is matched with the anode socket; the inner side of the anode fixing plate An annular rib is also provided, the annular rib being sized to match the resilient sealing jaw, the anode electrode plate being sealed by a sealing device and secured in the electrochemical reaction chamber.

17. The fuel cell device for accelerating air flow on a cathode surface according to claim 16, wherein: said anode sealing device further comprises a limiting block respectively disposed at a corresponding position on the housing at both ends of said anode socket And a roller fixed spring strip on the limiting block is respectively installed at both ends.