Aluminum-based solid fuel cell

Abstract

The utility model provides an aluminum-based solid-state fuel cell which comprises an outer base, a plurality of middle supports sequentially inserted on one side of the outer base, and a plurality of single cells sequentially inserted on the middle supports, aluminum-based solid-state fuel is detachably arranged in the single cells, and an air film for taking in oxygen is arranged on one side of each single cell. The plurality of single batteries on the same middle bracket are arranged in series; the outer base is connected with a liquid inlet main pipeline and a liquid outlet main pipeline, and a single battery liquid inlet and a single battery liquid outlet are formed in one side of each single battery, so that electrolyte enters the aluminum-based solid fuel along the liquid inlet main pipeline and the single battery liquid inlet in sequence and flows back along the single battery liquid outlet and the liquid outlet main pipeline in sequence; according to the utility model, the replacement convenience of the aluminum-based solid fuel in the aluminum-air battery is improved, and the power supply endurance of the aluminum-air battery is ensured.

Description

Technical Field

[0001] The utility model relates to the field of solid fuel cells, in particular to an aluminum-based solid fuel cell. Background Art

[0002] An aluminum-air fuel cell uses special alloy aluminum or high-purity aluminum Al (aluminum content 99.99%) or waste miscellaneous aluminum as the anode of the battery, an air membrane electrode as the cathode of the battery, and aqueous solutions of potassium hydroxide (KOH) and sodium hydroxide (NaOH) as the electrolyte; the air membrane electrode takes in oxygen in the air, and aluminum and oxygen undergo an electrochemical reaction and discharge in the electrolyte, and aluminum and oxygen react to be converted into aluminum oxide. It has attracted more and more attention due to its high theoretical energy density (8135 Wh / kg) and environmental protection and other advantages.

[0003] Aluminum and oxygen respectively undergo an electrochemical reaction at the negative electrode and the positive electrode of the aluminum-air fuel cell, directly converting the chemical energy therein into electrical energy, without going through a heat engine process and not being restricted by the Carnot cycle. Therefore, the energy conversion efficiency is high, and there is no noise and no pollution, which is an ideal energy utilization method.

[0004] Aluminum will not cause harm to the human body, can be recycled and reused, and does not pollute the environment. Aluminum has rich raw materials, and there are already large-scale aluminum smelters, and the production cost is relatively low. Aluminum recycling and regeneration are convenient, and the recycling and regeneration cost is also relatively low.

[0005] However, in the actual application of aluminum-air fuel cells, since the aluminum electrode will be continuously consumed during the discharge process, after the aluminum-air fuel cell is used for a period of time, the aluminum electrode will be consumed completely. Therefore, it is necessary to replace the aluminum electrode to ensure the long-term continuous power supply of the aluminum-air fuel cell. Therefore, in the actual application process of aluminum-air fuel cells, the replacement problem of the aluminum electrode is a bottleneck problem that needs to be solved urgently; in traditional aluminum-air fuel cells, due to the difficulty of replacing the aluminum electrode, it has become an important factor hindering the popularization and application of aluminum-air fuel cells. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an aluminum-based solid fuel cell that improves the convenience of replacing the aluminum-based solid fuel in an aluminum-air battery and ensures the power supply endurance of the aluminum-air battery.

[0007] To solve the above technical problems, the utility model provides an aluminum-based solid oxide fuel cell, which comprises an outer base, a plurality of middle brackets sequentially inserted on one side of the outer base, and a plurality of battery monomers sequentially inserted on the middle brackets. An aluminum-based solid fuel is detachably arranged inside the battery monomer, and an air film for absorbing oxygen is arranged on one side of the battery monomer. A plurality of battery monomers on the same middle bracket are arranged in series; the outer base is connected with a main liquid inlet pipeline and a main liquid outlet pipeline. One side of the battery monomer is provided with a single-cell liquid inlet and a single-cell liquid outlet, so that the electrolyte sequentially enters the aluminum-based solid fuel along the main liquid inlet pipeline and the single-cell liquid inlet, and flows back along the single-cell liquid outlet and the main liquid outlet pipeline in sequence.

[0008] Further, a middle-bracket liquid inlet and a middle-bracket liquid outlet are arranged on the side of the middle bracket. One end of the middle-bracket liquid inlet is connected with the main liquid inlet pipeline, and the other end is matched with the single-cell liquid inlet. One end of the middle-bracket liquid outlet is connected with the main liquid outlet pipeline, and the other end is matched with the single-cell liquid outlet.

[0009] Further, an opening is arranged at the top of the battery monomer. The aluminum-based solid fuel is inserted into the battery monomer through the opening, and a sealing cover is arranged outside the opening.

[0010] Further, buckles are arranged on the side of the opening of the battery monomer to limit the sealing cover.

[0011] Further, a positive connection piece and a negative connection piece are arranged on the side of the middle bracket, so that the positive electrode of the battery monomer closest to the positive connection piece on the middle bracket is electrically connected with the positive connection piece, and the negative electrode of the battery monomer closest to the negative connection piece on the middle bracket is electrically connected with the negative connection piece.

[0012] Further, a reflux port is arranged at the bottom of the middle bracket close to the outer base, and a recovery groove corresponding to the reflux port is arranged on the outer base, so that when the electrolyte overflows during liquid inlet, it is collected by the recovery groove.

[0013] Further, a plurality of card slots are arranged on the middle bracket, and the battery monomers are inserted into the card slots.

[0014] Further, covers are arranged at the outer ends of the main liquid inlet pipeline and the main liquid outlet pipeline.

[0015] Further, 10%-15% of space is reserved in the main liquid inlet pipeline and the main liquid outlet pipeline when transporting the electrolyte.

[0016] The beneficial effects of the present utility model are as follows: A number of battery monomers are inserted into the middle bracket, such that the positive and negative electrodes of adjacent battery monomers are connected, and a number of battery monomers on the same middle bracket are successively connected in series in the same circuit. Subsequently, a number of middle brackets are successively inserted into the outer base. At this time, the electrolyte is conveyed through the main liquid inlet pipeline, such that the electrolyte successively enters the aluminum-based solid fuel through the main liquid inlet pipeline and the single-cell liquid inlet to generate a chemical reaction and discharge. As the electrolyte is conveyed, the liquid level of the electrolyte in the battery monomer rises to the single-cell liquid outlet, and further causes the electrolyte to flow back successively along the single-cell liquid outlet and the main liquid outlet pipeline, so that the electrolyte circulates to ensure the stable reaction of the electrolyte with the aluminum-based solid fuel. At the same time, since the aluminum-based solid fuel is detachably arranged in the battery monomer, when the aluminum electrode in it is consumed after the aluminum-based solid fuel is used for a certain period of time, the aluminum-based solid fuel can be replaced in time to ensure the power supply endurance of the overall aluminum-based solid fuel cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] Figure 2 is a front view of the present utility model.

[0019] Figure 3 is the present utility model Figure 2 sectional view along line A-A.

[0020] Figure 4 is a schematic structural diagram of the middle bracket of the present utility model.

[0021] Figure 5 is a schematic structural diagram of the battery monomer of the present utility model.

[0022] Reference numerals: 1, outer base; 2, middle bracket; 3, battery monomer; 4, aluminum-based solid fuel; 5, main liquid inlet pipeline; 6, main liquid outlet pipeline; 7, single-cell liquid inlet; 8, single-cell liquid outlet; 9, middle-bracket liquid inlet; 10, middle-bracket liquid outlet; 11, sealing cover; 12, buckle; 13, return port; 14, recovery groove; 15, card slot; 16, cover body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present utility model.

[0024] Those skilled in the art should understand that in the disclosure of this utility model, the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0025] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0026] As Figures 1-5 described, this utility model provides an aluminum-based solid oxide fuel cell, which includes an outer base 1, a plurality of middle brackets 2 sequentially inserted on one side of the outer base 1, and a plurality of battery monomers 3 sequentially inserted on the middle brackets 2. An aluminum-based solid fuel 4 is detachably arranged inside the battery monomer 3, and an air membrane for absorbing oxygen is provided on one side of the battery monomer 3. A plurality of battery monomers 3 on the same middle bracket 2 are arranged in series; the outer base 1 is connected with a main inlet pipeline 5 and a main outlet pipeline 6. A single-cell inlet 7 and a single-cell outlet 8 are provided on one side of the battery monomer 3, so that the electrolyte sequentially enters the aluminum-based solid fuel 4 along the main inlet pipeline 5 and the single-cell inlet 7, and flows back along the single-cell outlet 8 and the main outlet pipeline 6 in sequence.

[0027] Insert a plurality of battery monomers on the middle brackets, so that the positive and negative electrodes of adjacent two battery monomers are connected, and a plurality of battery monomers on the same middle bracket are sequentially connected in series in the same circuit. Then, sequentially insert a plurality of middle brackets on the outer base. At this time, the electrolyte is conveyed through the main inlet pipeline, so that the electrolyte sequentially enters the aluminum-based solid fuel through the main inlet pipeline and the single-cell inlet to generate a chemical reaction and discharge. As the electrolyte is conveyed, the liquid level of the electrolyte in the battery monomer rises to the single-cell outlet, and then the electrolyte sequentially flows back along the single-cell outlet and the main outlet pipeline, so that the electrolyte circulates to ensure the stable reaction of the electrolyte with the aluminum-based solid fuel; at the same time, since the aluminum-based solid fuel is detachably arranged in the battery monomer, when the aluminum electrode in it is consumed after being used for a certain period of time, the aluminum-based solid fuel can be replaced in time to ensure the power supply and endurance ability of the overall aluminum-based solid oxide fuel cell.

[0028] In one embodiment of this solution, the liquid inlet main line 5 and the liquid outlet main line 6 are externally connected to the electrolyte tank to form a circulation flow path, and a pump body and other conveying equipment are used in conjunction to stably convey the electrolyte.

[0029] In another embodiment of the present solution, five battery cells are inserted into the same middle bracket, so that the five battery cells are connected in series to form a group unit, and the five groups of units are connected to the outer base, so that the five groups of units form a battery unit, and then electricity is generated through the battery unit.

[0030] Preferably, a middle bracket liquid inlet 9 and a middle bracket liquid outlet 10 are provided on the side of the middle bracket 2, and one end of the middle bracket liquid inlet 9 is connected to the liquid inlet main line 5, and the other end matches the single cell liquid inlet 7, and one end of the middle bracket liquid outlet 10 is connected to the liquid outlet main line 6, and the other end matches the single cell liquid outlet 8.

[0031] Specifically, when the battery cell is placed in the middle bracket and the middle bracket is plugged into the outer base, the sealed connection between the main liquid inlet line and the liquid inlet of the single cell is ensured through the liquid inlet of the middle bracket, so that the electrolyte is stably transported to the interior of the battery cell to react and discharge with the aluminum-based solid fuel, and the sealed connection between the main liquid outlet line and the liquid outlet of the single cell is ensured through the liquid outlet of the middle bracket at the same time, so that the electrolyte can stably reflux, so that the electrolyte forms a circulating flow path.

[0032] In one embodiment of this solution, the liquid inlet main line is connected to the liquid inlet of the middle bracket through a fixed connecting line, and the liquid outlet main line is connected to the liquid outlet of the middle bracket through a fixed connecting line to ensure stable delivery of the electrolyte.

[0033] Preferably, the top of the battery cell 3 has an opening, the aluminum-based solid fuel 4 is inserted into the battery cell 3 through the opening, and a sealing cover 11 is provided on the outer side of the opening.

[0034] Specifically, the opening ensures that the aluminum-based solid fuel can be easily removed or installed from the opening, and the sealing cover protects and limits the aluminum-based solid fuel to ensure the stable reaction and discharge of the aluminum-based solid fuel in the battery cell and the power supply endurance of the battery cell.

[0035] In one embodiment of this solution, an inner protective net and an outer breathable protective net are sequentially provided on the outside of the battery cell from the inside to the outside to improve the protection capability of the battery cell.

[0036] Preferably, a buckle 12 is provided on the side of the opening of the battery cell 3 , and the buckle 12 limits the sealing cover 11 .

[0037] Specifically, the sealing cover is limited by a buckle to ensure that the sealing cover will not move away from the opening position. At the same time, after the buckle is opened, the sealing cover can be easily removed, and the aluminum-based solid fuel can be easily replaced.

[0038] Preferably, a positive connection piece and a negative connection piece are arranged on the side of the middle bracket 2, so that the positive electrode of the battery cell 3 closest to the positive connection piece on the middle bracket 2 is electrically connected to the positive connection piece, and the negative electrode of the battery cell 3 closest to the negative connection piece on the middle bracket 2 is electrically connected to the negative connection piece.

[0039] Specifically, since several battery cells on the same middle bracket are connected in series in the same circuit by connecting the positive and negative electrodes, by arranging the positive connection piece and the negative connection piece on the middle bracket, the positive electrode of one of the battery cells is electrically connected to the positive connection piece, and the negative electrode of one of the battery cells is electrically connected to the negative connection piece, so that the middle bracket and several battery cells are located in the same circuit, and further the electric energy generated in the battery cells can be transmitted outward through the middle bracket.

[0040] In an embodiment of the present solution, both the positive connection piece and the negative connection piece are connected with wires, so that the electric energy generated in the battery cells is transmitted outward by the wires.

[0041] In another embodiment of the present solution, an electrical connection is formed between adjacent middle brackets through the positive connection piece and the negative connection piece, so that several middle brackets in the outer base are located in the same circuit. At the same time, a positive connection piece and a negative connection piece are also arranged inside the outer base, and the positive connection piece on the outer base is electrically connected to the negative connection piece on one of the middle brackets, and the negative connection piece on the outer base is electrically connected to the positive connection piece on one of the middle brackets, so that the outer base and all the battery cells inside form the same power supply unit.

[0042] Preferably, the bottom of the middle bracket 2 close to the outer base 1 has a return port 13, and the outer base 1 is provided with a recovery groove 14 corresponding to the return port 13, so that when the electrolyte overflows during the liquid inlet, it is collected by the recovery groove 14.

[0043] Specifically, when the electrolyte overflows during the process of entering the middle bracket liquid inlet from the main liquid inlet pipeline, the electrolyte will flow out along the recovery groove to the designated area, so as to ensure that the waste liquid can be centrally collected and processed through the recovery groove. At the same time, the return port can avoid the structure of the recovery groove, so that the recovery groove has enough waste liquid recovery space.

[0044] Preferably, the middle bracket 2 is provided with a plurality of card slots 15, and the battery cells 3 are inserted into the card slots 15.

[0045] Specifically, each battery cell is inserted and matched through a plurality of card slots to ensure the stable insertion of each battery cell, and further ensure the sealing cooperation effect between the middle bracket liquid inlet and the single battery liquid inlet, and between the middle bracket liquid outlet and the single battery liquid outlet.

[0046] Preferably, caps 16 are provided at the outer ends of both the main liquid inlet pipeline 5 and the main liquid outlet pipeline 6.

[0047] Specifically, the caps ensure the stable connection between the main liquid inlet pipeline / main liquid outlet pipeline and the external pipeline / external water tank, preventing electrolyte leakage at this position.

[0048] Preferably, when the main liquid inlet pipeline 5 and the main liquid outlet pipeline 6 are transporting electrolyte, a space of 10% - 15% is reserved to allow the reaction gas generated during the reaction and discharge process to be transported out through the reserved space in the pipeline.

[0049] In an embodiment of this solution, a 10% space is reserved when the main liquid inlet pipeline and the main liquid outlet pipeline are transporting electrolyte to ensure the stable transportation of the electrolyte and the reaction gas.

[0050] The present utility model is not limited to the above best implementation mode. Anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has a technical solution identical or similar to this application, it falls within the protection scope of the present utility model.

Claims

1. An aluminum-based solid oxide fuel cell, characterized in that: It includes an outer base (1), a number of middle brackets (2) sequentially inserted on one side of the outer base (1), and a number of battery cells (3) sequentially inserted on the middle brackets (2). An aluminum-based solid fuel (4) is detachably arranged inside the battery cell (3), and an air film for absorbing oxygen is provided on one side of the battery cell (3). A number of battery cells (3) on the same middle bracket (2) are arranged in series; the outer base (1) is connected with a main liquid inlet pipeline (5) and a main liquid outlet pipeline (6). One side of the battery cell (3) has a single-cell liquid inlet (7) and a single-cell liquid outlet (8), so that the electrolyte enters the aluminum-based solid fuel (4) along the main liquid inlet pipeline (5) and the single-cell liquid inlet (7) in sequence, and flows back along the single-cell liquid outlet (8) and the main liquid outlet pipeline (6) in sequence.

2. The aluminum-based solid oxide fuel cell according to claim 1, wherein: Middle brackets (2) are provided with a middle-bracket liquid inlet (9) and a middle-bracket liquid outlet (10) on the side. One end of the middle-bracket liquid inlet (9) is connected with the main liquid inlet pipeline (5), and the other end is matched with the single-cell liquid inlet (7). One end of the middle-bracket liquid outlet (10) is connected with the main liquid outlet pipeline (6), and the other end is matched with the single-cell liquid outlet (8).

3. The aluminum-based solid-state fuel cell according to claim 1, wherein: The battery cell (3) has an opening at the top, and the aluminum-based solid fuel (4) is inserted into the battery cell (3) from the opening, and a sealing cover (11) is provided outside the opening.

4. The aluminum-based solid oxide fuel cell according to claim 3, wherein: Clasps (12) are provided on the side of the opening of the battery cell (3), and the sealing cover (11) is limited by the clasps (12).

5. The aluminum-based solid oxide fuel cell according to claim 1, wherein: Positive connection pieces and negative connection pieces are arranged on the side of the middle bracket (2), so that the positive electrode of the battery cell (3) closest to the positive connection piece on the middle bracket (2) is electrically connected to the positive connection piece, and the negative electrode of the battery cell (3) closest to the negative connection piece on the middle bracket (2) is electrically connected to the negative connection piece.

6. The aluminum-based solid oxide fuel cell according to claim 1, characterized in that: The bottom of the middle bracket (2) close to the outer base (1) has a return port (13), and the outer base (1) is provided with a recovery groove (14) corresponding to the return port (13), so that when the electrolyte overflows during liquid inlet, it is collected by the recovery groove (14).

7. The aluminum-based solid oxide fuel cell according to claim 1, wherein: The middle bracket (2) is provided with a number of card slots (15), and the battery cell (3) is inserted into the card slots (15).

8. The aluminum-based solid oxide fuel cell according to claim 1, wherein: Lids (16) are provided at the outer ends of the main liquid inlet pipeline (5) and the main liquid outlet pipeline (6).

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