WO2021012306A1

WO2021012306A1 - Air battery pack

Info

Publication number: WO2021012306A1
Application number: PCT/CN2019/099047
Authority: WO
Inventors: 史鹏飞; 阙奕鹏; 齐敏杰
Original assignee: 超威电源有限公司
Priority date: 2019-07-24
Filing date: 2019-08-02
Publication date: 2021-01-28
Also published as: CN110444837B; CN110444837A

Abstract

The present invention relates to the field of batteries, and disclosed is an air battery pack. The air battery pack comprises a plurality of battery units (1) that are stacked, the battery units (1) comprise housings (2) that are provided with front-side plate parts (3) and rear-side plate parts (4), the front-side plate parts (3) are provided with openings and plate-opening parts (5) that close the openings and may pivot to open, and the housings (2) are internally provided with negative electrode plates that correspond to the openings and are removable. By means of the described technical solution, the battery units may open the plate-opening parts to then open the housings, which facilitates the extraction of the negative electrode plates therein, simplifies the removal and assembly processes of the negative electrode plates, improves the replacement operation of the negative electrode plates and increases efficiency.

Description

Air battery pack

Technical field

The invention relates to the field of batteries, in particular to an air battery pack.

Background technique

The air battery is a new type of battery composed of oxygen in the air as the cathode active material, metal plates as the anode active material, and inorganic electrolyte. Its theoretical specific energy is high, and it also has large capacity, long life, safe use and environment Friendly and other advantages. However, the air battery needs to continuously mechanically replace the metal electrode as the negative electrode during use. The current replacement process requires complete disassembly of the battery pack, which is relatively cumbersome, time-consuming, labor-intensive, and has a high risk factor.

Summary of the invention

The purpose of the present invention is to provide an air battery pack to solve the problem that the electrode plates in the battery cells are not easy to disassemble and replace.

In order to achieve the above object, one aspect of the present invention provides an air battery pack, wherein the air battery pack includes a plurality of battery cells arranged in a layered arrangement, and the battery cell includes a housing having a front side plate portion and a rear side plate portion The front side plate portion is provided with an opening and an opening plate portion closed at the opening and capable of pivoting open, and a detachable negative plate corresponding to the opening is provided in the housing.

Optionally, the side of the opening plate portion away from the pivot axis of the opening plate portion is connected to the rear side plate portion of an adjacent battery unit, and a plurality of the battery units can be in a stacking direction Stretch and open each of the opening plates.

Optionally, the opening plate part and the rear side plate part of the other battery unit are hingedly connected by a hinge shaft, and the hinge shaft is parallel to the pivot axis.

Optionally, the outer surface of the opening plate portion is provided with supporting ribs, and the supporting ribs can be supported on the outer surface of the rear side plate portion to keep the opening plate portion and the rear side plate portion spaced apart , The supporting rib is hinged to the rear side plate part.

Optionally, the air battery pack includes a fastener extending through the casing in the stacking direction, and at least one of the fastener passes through the opening plate portion.

Optionally, a positioning post capable of passing through the negative plate is provided on the inner surface of the rear side plate portion and/or on the inner surface of the opening plate portion.

Optionally, the inner surface of the rear side plate portion and the inner surface of the opening plate portion are respectively provided with occlusal teeth capable of meshing with each other, and the occlusal teeth can clamp the negative plate.

Optionally, a first window is provided on the opening plate portion, a second window corresponding to the first window is provided on the rear side plate portion, and the housing is provided with a block for blocking the first window. The first positive electrode plate of the window and the second positive electrode plate that closes the second window, the negative electrode plate is clamped between the first positive electrode plate and the second positive electrode plate in an insulating manner.

Optionally, a liquid injection port is provided on the top plate of the housing, and an air filter valve is provided in the liquid injection port.

Optionally, the battery unit includes a heat dissipation member disposed through the housing, the heat dissipation member includes a heat dissipation pipe located outside the housing, and the heat dissipation pipes of a plurality of the battery units are aligned along the stacking direction arrangement.

Optionally, a gas-liquid separator is provided in the housing.

With the above technical solution, the battery unit can open the casing by opening the opening plate, which facilitates taking out the negative plate therein, simplifies the disassembly and assembly process of the negative plate, improves the replacement operation of the negative plate, and improves the efficiency.

Description of the drawings

FIG. 1 is a schematic structural diagram of an air battery pack according to an embodiment of the present invention, in which the casing is in a sealed state;

2 is a schematic diagram of the structure of the air battery pack according to the embodiment of the present invention, in which the casing is in an open state;

Fig. 3 is a schematic structural diagram of a battery unit according to an embodiment of the present invention.

Description of reference signs

1 Battery unit 2 Case

3 Front side panel section 4 Rear side panel section

5 Open the board department 6 Support ribs

7 Fasteners 8 Positioning posts

9 Bite the teeth 10 First window

11 Second window 12 Air filter valve

13 Heat sink 14 Gas-liquid separator

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

The present invention provides an air battery pack, wherein the air battery pack includes a plurality of battery cells 1 arranged in layers, and the battery cell 1 includes a housing 2 having a front side plate portion 3 and a rear side plate portion 4, The front side plate portion 3 is provided with an opening and an opening plate portion 5 which is closed at the opening and can be pivotally opened, and a detachable negative plate corresponding to the opening is provided in the housing 2.

The air battery pack of the present invention is composed of a plurality of battery cells (air batteries) 1 arranged in an array. The battery cells 1 may be roughly formed in a plate shape and stacked. Each battery cell 1 includes a casing 1, and the casing 1 includes a front side plate portion. 3 and the rear side plate portion 4, wherein, as shown in FIG. 3, an opening is provided on the front side plate portion 3, and an openable opening plate portion 5 is provided at the opening. The casing can be opened or sealed by pivoting the opening plate portion 5 Body 2, in particular, the negative plate in the case 2 is located at the opening. Therefore, by opening the opening plate portion 5, the case 2 can be opened, so that the negative plate can be installed or removed through the opening. It is aluminum plate, zinc plate, magnesium plate, etc. After installing or disassembling the negative electrode plate, the opening plate portion 5 can be closed to seal the casing 1, and the casing 1 can contain components such as electrolyte and electrodes.

By arranging an openable opening plate portion on the casing of the battery unit, the casing can be opened more conveniently to take out the negative plate of the air battery, simplifying the replacement operation of the negative plate and improving the efficiency of replacing the negative plate.

Further, the side of the opening plate portion 5 away from the pivot axis of the opening plate portion 5 is connected to the rear side plate portion 4 of an adjacent battery unit 1, and a plurality of the battery units 1 Each of the opening plate portions 5 can be stretched and opened in the stacking direction. The opening plate portion 5 is pivotally opened with respect to the front side plate portion 3 about a pivot axis, the pivot axis may extend in a horizontal direction or a vertical direction, and the other side of the opening plate portion 5 away from the pivot axis and another battery The rear side plate portion 4 of the unit 1 is connected. In this case, pull the two battery units 1 at both ends along the arrangement direction of the plurality of battery units 1, so that the opening plate portion 5 can be pivotally opened. Referring to FIG. 2, more The opening plate 5 and the rear side plate 4 of the group can form a Z-shaped structure, or "folder type" structure, which can be stretched in the stacking direction to open the opening plate 5, and can be contracted in the stacking direction to close the opening plate 5 . In other words, it is only necessary to operate the battery cells 1 at both ends to stretch or contract, and then the opening plates 5 of all battery cells 1 can be controlled to open or close, without the need to open and close each battery cell 1. It is convenient to disassemble and assemble the negative plate of each battery unit, which improves the efficiency of disassembly and installation.

Further, the opening plate portion 5 is hingedly connected to the rear side plate portion 4 of the other battery unit 1 by a hinge shaft, and the hinge shaft is parallel to the pivot axis. Figures 1 and 2 do not specifically show the structure of the hinge shaft. The hinge shaft structure can be a hinge. The hinge can hinge the opening plate 5 and the rear side plate 4 together, allowing the opening of the plate 5 It pivots relatively to the rear side plate portion 4, and the hinge axis is parallel to the pivot axis.

In addition, the outer surface of the opening plate portion 5 is provided with supporting ribs 6, and the supporting ribs 6 can be supported on the outer surface of the rear side plate portion 4 so that the opening plate portion 5 and the rear side plate The part 4 is kept spaced apart, and the supporting rib 6 is hinged to the rear side plate part 4. The battery unit 1 is an air battery and needs to be in full contact with the air. Therefore, the adjacent battery units 1 are kept apart, that is, supporting ribs 6 are provided on the outer surface of the opening plate 5 so that the opening plate 5 and the rear side plate 4 The interval allows air to reach between the opening plate portion 5 and the rear side plate portion 4 more easily. A plurality of supporting ribs 6 may be provided on the opening plate portion 5, wherein the supporting ribs 6 located at the edge of the opening plate portion 5 far away from the pivot axis and the rear side plate portion 4 of the other battery unit 1 pass through a hinge shaft Articulated.

In addition, the air battery pack includes a fastener 7 extending through the casing 2 in the stacking direction, and at least one of the fastener 7 passes through the opening plate portion 5. The fastener 7 can connect a plurality of battery cells 1, and the fastener 7 can be provided with threads to realize the screw connection with each battery cell 1, wherein at least one fastener 7 passes through the opening plate part 5. Of course, the fastener 7 must pass through the rear side plate portion 4, so the opening plate portion 5 can be firmly fixed to prevent the opening plate portion 5 from being separated from the front side plate portion 3 and opened.

In addition, the inner surface of the rear side plate portion 4 and/or the inner surface of the opening plate portion 5 are provided with positioning posts 8 that can pass through the negative electrode plate. The positioning column 8 can position the negative electrode plate, and the negative plate can be provided with a through hole to facilitate hanging the negative plate on the positioning column 8. The positioning post 8 may be provided on the opening plate part 5 and the rear side plate part 4. According to an embodiment of the present invention, referring to FIG. 3, the positioning post 8 is provided on the inner surface of the rear side plate part 4.

In addition, the inner surface of the rear side plate portion 4 and the inner surface of the opening plate portion 5 are respectively provided with engaging teeth 9 capable of engaging with each other, and the engaging teeth 9 can clamp the negative electrode plate. When the opening plate portion 5 is pivoted to be closed, the biting teeth 9 can be engaged with each other to bite the negative plate so that the negative plate is stably fixed in the housing 2. The bite teeth 9 may be made of conductive material to facilitate the electrical connection of the negative plate to the corresponding component.

Optionally, a first window 10 is provided on the opening plate portion 5, a second window 11 corresponding to the first window 10 is provided on the rear side plate portion 4, and the housing 2 is provided with The first positive plate blocking the first window 10 and the second positive plate blocking the second window 11 are clamped between the first positive plate and the second positive plate in an insulating manner. Between the positive plates. A first positive plate is provided at the first window 10 of the opening plate part 5, and a second positive plate is provided at the second window 11 of the rear plate part 4, so that the first positive plate and the second positive plate are in contact with air to generate electricity. chemical reaction. The first positive plate and the second positive plate are connected in parallel with each other while maintaining insulation from the negative plate to avoid short circuit. The negative plate is located between the first positive plate and the second positive plate. Figures 1 to 3 do not show the positive plate and the negative plate, but those skilled in the art can clearly think of how to set the positive plate and the negative plate according to the description of the solution and the drawings.

In addition, a liquid injection port is provided on the top plate of the housing 2, and an air filter valve 12 is provided in the liquid injection port. The electrolyte can be injected into the housing 2 through the liquid injection port, and then an air filter valve 12 can be provided at the liquid injection port. The air filter valve 12 can prevent the electrolyte from flowing out while allowing the gas generated by electrolysis to be discharged.

In addition, the battery unit 1 includes a heat sink 13 provided through the housing 2, and the heat sink 13 includes a heat pipe located outside the housing 2. Align them along the stacking direction. The heat sink 13 is partly located in the housing 2 and partly outside the housing 2, that is, the radiating pipe, which conducts the heat inside the housing 2 to the outside through a thermally conductive material, and the radiating pipe is cooled by air or water. By cooling, the temperature inside the housing 2 can be reduced.

In addition, a gas-liquid separator 14 is provided in the housing 2. The gas-liquid separator 14 may be located in the upper part of the housing 2 to allow the electrolyte to flow downwards, but not to allow the electrolyte to flow upwards, and only allow gas to pass through. Therefore, it can be ensured that the electrolyte is kept in the lower part of the housing 2.

The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical concept of the present invention, a variety of simple modifications can be made to the technical solutions of the present invention, including individual specific technical features combined in any suitable manner. In order to avoid unnecessary repetition, the present invention makes various possible combinations. No further explanation. However, these simple modifications and combinations should also be regarded as the contents disclosed in the present invention, and all belong to the protection scope of the present invention.

Claims

An air battery pack, characterized in that the air battery pack comprises a plurality of battery cells (1) arranged in a layered arrangement, and the battery unit (1) comprises a front side plate part (3) and a rear side plate part (4). ) Housing (2), the front side plate portion (3) is provided with an opening and an opening plate portion (5) closed at the opening and capable of pivoting open, and the housing (2) is provided with A detachable negative plate corresponding to the opening.
The air battery pack according to claim 1, wherein the side of the opening plate portion (5) far away from the pivot axis of the opening plate portion (5) is connected to an adjacent battery unit ( In the rear side plate portion (4) of 1), the plurality of battery cells (1) can be stretched in the stacking direction and open each of the opening plate portions (5).
The air battery pack according to claim 2, wherein the opening plate portion (5) and the rear side plate portion (4) of the other battery unit (1) are hingedly connected by a hinge shaft, so The hinge axis is parallel to the pivot axis.
The air battery pack according to claim 3, wherein the outer surface of the opening plate portion (5) is provided with supporting ribs (6), and the supporting ribs (6) can be supported on the rear side plate portion The outer surface of (4) is such that the opening plate part (5) is kept spaced from the rear side plate part (4), and the supporting rib (6) is hinged with the rear side plate part (4).
The air battery pack according to claim 1, wherein the air battery pack comprises a fastener (7) extending through the casing (2) in the stacking direction, and at least one fastener ( 7) Pass through the opening plate part (5).
The air battery pack according to claim 1, wherein the inner surface of the rear side plate portion (4) and/or the inner surface of the opening plate portion (5) are provided with Positioning post (8) of the negative plate.
The air battery pack according to claim 5, wherein the inner surface of the rear side plate portion (4) and the inner surface of the opening plate portion (5) are respectively provided with engaging teeth capable of engaging with each other (9) The bite teeth (9) can clamp the negative plate.
The air battery pack according to claim 1, wherein a first window (10) is provided on the opening plate portion (5), and a first window (10) is provided on the rear side plate portion (4). The second window (11) corresponding to the window (10), the housing (2) is provided with a first positive plate for blocking the first window (10) and a second window (11) for blocking The second positive electrode plate is sandwiched between the first positive electrode plate and the second positive electrode plate in an insulating manner.
The air battery pack according to claim 1, wherein a liquid injection port is provided on the top plate of the housing (2), and an air filter valve (12) is provided in the liquid injection port.
The air battery pack according to claim 1, wherein the battery unit (1) includes a heat sink (13) provided through the housing (2), and the heat sink (13) includes For the heat dissipation pipes outside the casing (2), the heat dissipation pipes of the plurality of battery cells (1) are aligned and arranged along the stacking direction.
The air battery pack according to claim 1, characterized in that a gas-liquid separator (14) is provided in the casing (2).