Metal fuel cell module capable of automatically treating alkaline gas
By introducing alkali gas treatment devices and steam drums into the metal fuel cell module, the alkali gas treatment problem is solved, the recycling of electrolyte and the high temperature stability of the system are realized, the leakage of electrolyte and alkali gas is avoided, and the leakage of electrolyte and alkali gas is ensured. Long-term running and storage effects.
Patent Information
- Application Number
- CN202411445346.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-01-17
AI Technical Summary
The alkaline gases generated by metal fuel cells during the operation of electrolyte are difficult to deal with, resulting in excessive pressure on the battery cell and stack, leakage and corrosion of the electrolyte, limiting their large-scale applications.
A metal fuel cell module including a stack, alkali gas treatment device, bracket and steam drum was designed to collect and filter alkaline gas using acid plates and ethylene propylene rubber drums to prevent electrolyte deposition and excessive pressure. , realize automatic alkali gas treatment and electrolyte reflux to ensure the sealing and reliability of the system.
It effectively prevents the leakage of electrolyte and alkali gas, reduces the risk of corrosion to the environment and parts, ensures the system to run and store for a long time in high temperature and strong alkali environments, and is convenient to replace consumables for the product.
Smart Images
Figure CN119324278A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of new energy, and in particular relates to a metal fuel cell module capable of self-processing alkaline gas. Background Art
[0002] Metal / air batteries are chemical power sources that use metal aluminum or zinc, magnesium and oxygen in the air as reactive substances. The negative electrode is generally an aluminum alloy plate, and the positive electrode is an air electrode composed of a waterproof layer, a diffusion layer, a catalytic layer, and a current collector. The electrolyte is an alkaline solution. Aluminum absorbs oxygen from the air and produces a chemical reaction when the battery is discharged. Aluminum and oxygen react to convert into aluminum oxide. Metal fuel cells are developing rapidly and are a very promising fuel cell. However, because their electrolytes produce alkaline gas with corrosive gases during operation, they are difficult to use in large quantities. Summary of the invention
[0003] The present invention aims to use a fuel cell method, especially a metal fuel cell module based on metal fuel, which can self-process alkaline gas. To this end, the present invention proposes an automatic alkaline gas processing device, an electrolyte reflux non-deposition system, a steam drum gas absorption device to prevent the system pressure from being too high, complete sealing, convenient product replacement of consumables, easy to use, and can withstand a high temperature of up to 80°C.
[0004] The technical solution of the present invention is: A metal fuel cell module capable of self-processing alkaline gas, comprising a fuel cell stack, an alkaline gas processing device, a bracket and a steam drum; The battery stack includes a base and several groups of battery cells arranged on the base, the battery cells include a shell and a positive electrode and a negative electrode arranged in the shell, the shell is provided with an alkaline gas outlet connected to an alkaline gas treatment device; the base is provided with a liquid inlet and a liquid outlet, and a bracket is installed on the base to be connected to the alkaline gas treatment device; the alkaline gas treatment device includes an acid plate, a main frame and an upper cover, the upper cover is arranged on the main frame, the acid plate is arranged inside the main frame, the main frame is provided with an air inlet pipe connected to the battery cells, the main frame is provided with an air outlet pipe connected to the steam drum, and the main frame is provided with a liquid outlet pipe connected to the base.
[0005] Furthermore, the number of the battery cells is 10-15 groups.
[0006] Furthermore, an electrolyte reflux port is provided on the base, and the base is connected with each battery cell through the electrolyte reflux port.
[0007] Furthermore, a bracket installation opening is provided on the base.
[0008] Furthermore, the aperture of the liquid outlet is 1.5 times that of the liquid inlet.
[0009] Furthermore, the alkaline gas outlet is arranged at 9 / 10 of the overall height of the battery cell.
[0010] Furthermore, the alkaline gas outlet of the battery cell is connected to the air inlet pipe of the alkaline gas treatment device via a single cell connecting hose, and the single cell connecting hose is set at an angle of 45 degrees upward (the horizontal height of the air inlet pipe of the alkaline gas treatment device is higher than the horizontal height of the alkaline gas outlet of the battery cell).
[0011] Furthermore, the lower plane of the main frame is arranged to have an inclination angle, and the inclination angle is 3-5 degrees.
[0012] Furthermore, the acidic board is made of sulfuric acid board.
[0013] Furthermore, the material of the steam drum is ethylene propylene diene monomer rubber (EPDM).
[0014] Beneficial effects: According to the metal fuel cell module capable of self-processing alkaline gas of the present invention, electrolyte deposition can be avoided, liquid discharge can be ensured to be smooth, electrolyte circulation capacity remains unchanged, and the system can circulate reliably; According to the present invention, a metal fuel cell module capable of self-processing alkaline gas can realize the collection of alkaline gas, and greatly prevent the risk of electrolyte leakage and alkaline gas leakage caused by excessive pressure of battery cells and battery stacks; According to the present invention, a metal fuel cell module capable of self-processing alkaline gas can effectively prevent corrosion to the environment, metal fuel cell system, components, etc., and achieve the effect of long-term operation and storage; According to the present invention, a metal fuel cell module capable of self-processing alkaline gas can operate at a high temperature of 80°C and can be used in a strong alkaline corrosive environment with a pH value greater than 14; According to the metal fuel cell module capable of self-processing alkaline gas of the present invention, the pressure release of the fuel cell stack is realized, and there is no need to worry about the problem of alkaline gas corrosion and leakage of the tabs; According to the metal fuel cell module capable of self-processing alkaline gas of the present invention, the product is convenient for replacing consumables and is easy to use.
[0015] In summary, the present invention realizes self-processing of alkaline gas, effectively prevents alkaline gas from polluting the environment, effectively prevents alkaline gas from corroding metal fuel cell systems, components, etc., and achieves the effect of long-term operation and storage; greatly prevents the risk of electrolyte leakage and alkaline gas leakage caused by excessive pressure on battery cells and battery stacks; effectively releases the pressure of the battery stack, and there is no need to worry about problems such as alkaline gas corrosion of the pole ears. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1It is a structural schematic diagram of a metal fuel cell module capable of self-processing alkaline gas according to the present invention.
[0017] Figure 2 It is a structural diagram of a battery cell.
[0018] Figure 3 It is a schematic diagram of the structure of the base.
[0019] Figure 4 It is a structural schematic diagram of an alkaline gas treatment device.
[0020] Figure 5 It is a schematic diagram of the explosion structure of the alkaline gas treatment device.
[0021] Explanation of the reference numerals: 1 is a battery stack, 2 is a base, 2-1 is an electrolyte reflux port, 2-2 is a liquid inlet, 2-3 is an alkali gas treatment device connection port, 2-4 is a liquid outlet, 3 is a bracket, 4 is an alkali gas treatment device, 4-1 is a liquid outlet pipe, 4-2 is an air inlet pipe, 4-3 is an air outlet pipe, 5 is a steam drum, 6 is a base connecting hose, 7 is a single cell connecting hose, 8 is a battery cell, 8-1 is an air outlet, 8-2 is a mounting bracket, 8-3 is a base connection port, 9 is an acid plate, 10 is a main frame, and 11 is an upper cover. DETAILED DESCRIPTION
[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] Example Reference below Figure 1-Figure 5 The present invention describes a metal fuel cell module that processes alkaline gas on its own.
[0026] like Figure 1-Figure 5 The metal fuel cell module for self-processing alkaline gas according to the present invention is described, including: a fuel cell stack 1, a base 2, a bracket 3, an alkaline gas treatment device 4, a steam drum 5, a base connecting hose 6, a single cell connecting hose 7, a battery cell 8, an acid plate 9, a main frame 10 and an upper cover 11.
[0027] like Figure 2 As shown, the stack in the metal fuel cell module capable of self-processing alkaline gas is used as the discharge system of the whole product. The stack 1 has a discharge function and is composed of 12 battery cells 8 and a base 2. The battery cells 8 are fixedly arranged on the base 2 through a mounting bracket 8-2. The base 2 includes an electrolyte reflux port 2-1, a liquid inlet 2-2, an alkaline gas treatment device connection port 2-3 and a liquid outlet 2-4. The battery cell 8 is composed of a positive electrode, a negative electrode and a shell. The shell has a gas outlet 8-1 connected to the alkaline gas treatment device 4.
[0028] like Figure 3 As shown, the electrolyte reflux port 2-1 arranged on the base 2 can fully reflux the electrolyte absorbed in the alkaline gas treatment device 4, ensuring that the alkaline gas treatment device 4 will not deposit electrolyte; the base 2 has a liquid inlet 2-2 and a liquid outlet 2-4, and the flow rate of the liquid outlet 2-4 is 1.5 times that of the liquid inlet 2-2, which can ensure smooth liquid discharge and reliable system circulation.
[0029] like Figure 1 As shown, the bracket 3 is a connecting piece connecting the base 2 and the alkaline gas treatment device 4.
[0030] like Figure 4 and Figure 5As shown, the alkaline gas treatment device 4 can collect alkaline gas and prevent the risk of electrolyte leakage and alkaline gas leakage caused by excessive pressure of battery cells and battery stacks to a great extent; an acid plate is installed inside it, which can filter and neutralize the alkaline gas and greatly reduce the corrosive ability of the alkaline gas, and the acid material plate can be replaced and installed; the lower plane inside the main frame 10 is designed with an inclination angle of 3 degrees, which can effectively prevent the problem of electrolyte deposition in the alkaline gas treatment device 4; an air inlet 4-2 is designed on one side of the main frame 10 to be connected to the air outlet 8-1 on the single battery 8, and an air outlet pipe 4-3 is designed on the other side at 3 / 4 of the distance from the bottom plane to correspond to the steam drum 5 for absorbing the filtered alkaline gas; a liquid outlet pipe 4-1 is designed at the bottom end of the main frame 10, which can make more than 99% of the electrolyte in the alkaline gas treatment device flow back to the base 2; the alkaline gas treatment device 4 is located at the upper end of the battery stack 1 as a whole, which can collect alkaline gas and prevent electrolyte from entering.
[0031] like Figure 1 As shown, the drum is made of corrosion-resistant ethylene propylene diene monomer (EPDM) rubber, which is connected to the alkaline gas treatment device 4 and is used to absorb the filtered gas to prevent gas overflow. It can withstand a high temperature of 80°C, is not corroded by alkaline gas, and is easy to install.
[0032] The working principle of the above-mentioned self-processing alkaline gas metal fuel cell module is as follows: the alkaline gas generated during the operation of the battery cell enters the alkaline gas treatment device through the single cell battery connecting hose, the acid plate in the alkaline gas treatment device filters and neutralizes the alkaline gas, and the liquid after the filtering and neutralization reaction enters the base through the base connecting hose, and refluxes to each battery cell through the electrolyte reflux port on the base.
[0033] In the description of this specification, the description with reference to the terms "embodiment", "this device", "this illustration", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments in a suitable manner.
[0034] Although the embodiments, schematic diagrams and specific devices of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A metal fuel cell module capable of self-processing alkaline gas, characterized in that: It comprises a battery stack, an alkaline gas treatment device, a bracket and a steam drum; the battery stack comprises a base and a plurality of battery cells arranged on the base, the battery cells comprise a shell and a positive electrode and a negative electrode arranged in the shell, the shell is provided with an alkaline gas outlet connected to the alkaline gas treatment device; the base is provided with a liquid inlet and a liquid outlet, and a bracket is installed on the base to be connected to the alkaline gas treatment device; the alkaline gas treatment device comprises an acid plate, a main frame and an upper cover, the upper cover is arranged on the main frame, the acid plate is arranged inside the main frame, the main frame is provided with an air inlet pipe connected to the battery cells, the main frame is provided with an air outlet pipe connected to the steam drum, and the main frame is provided with a liquid outlet pipe connected to the base.
2. A metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: The number of the battery cells is 10-15 groups.
3. The metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: The base is provided with an electrolyte reflux port, and the base is connected with each battery monomer through the electrolyte reflux port.
4. The metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: A bracket installation opening is arranged on the base.
5. The metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: The aperture of the liquid outlet is 1.5 times that of the liquid inlet.
6. The metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: The alkaline gas outlet is arranged at 9 / 10 of the overall height of the battery cell.
7. The metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: The alkaline gas outlet of the battery cell is connected to the air inlet pipe of the alkaline gas treatment device through a single cell connecting hose, and the single cell connecting hose is set at an angle of 45 degrees upward.
8. The metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: The lower plane of the main frame is arranged to have an inclination angle, and the inclination angle is 3-5 degrees.
9. The metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: The material of the acidic plate is sulfuric acid plate.
10. The metal fuel cell module capable of self-processing alkaline gas according to claim 1, characterized in that: The material of the steam drum is EPDM rubber.