CN216450776U - Air exhaust structure for battery secondary sealing equipment, secondary sealing equipment and battery manufacturing equipment - Google Patents

Air exhaust structure for battery secondary sealing equipment, secondary sealing equipment and battery manufacturing equipment Download PDF

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Publication number
CN216450776U
CN216450776U CN202122207423.9U CN202122207423U CN216450776U CN 216450776 U CN216450776 U CN 216450776U CN 202122207423 U CN202122207423 U CN 202122207423U CN 216450776 U CN216450776 U CN 216450776U
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battery
suction
air bag
suction needle
needle
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CN202122207423.9U
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杨山
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Huizhou Liwinon Energy Technology Co Ltd
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Huizhou Liwinon Energy Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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Abstract

The utility model belongs to the technical field of secondary batteries, and particularly relates to an air extraction structure for a battery secondary sealing device, a secondary sealing device and a battery manufacturing device. The air exhaust structure for the secondary battery sealing equipment comprises a first sucker; the second sucking disc and the first sucking disc are respectively arranged at two sides of the battery air bag; the suction needle is arranged on the first sucker and/or the second sucker and is used for puncturing the battery air bag; a first channel is arranged in the suction needle and is used for pumping out gas in the battery; the driving piece is electrically connected with the suction needle and used for controlling the extension and retraction of the suction needle. The air exhaust structure provided by the utility model solves the problem that the electrolyte is exhausted in the air exhaust process of the battery in the prior art, and achieves the technical effects of less electrolyte injection and less air exhaust and reducing the electrolyte waste; meanwhile, the phenomenon of poor battery appearance caused by the fact that a bayonet pierces the air bag and splashes electrolyte is improved, and the fatal bad risk that the thickness of a packaging seal is too thick due to the fact that the splashed electrolyte is crystallized and dropped is reduced.

Description

Air exhaust structure for battery secondary sealing equipment, secondary sealing equipment and battery manufacturing equipment
Technical Field
The utility model relates to the technical field of secondary batteries, in particular to an air extraction structure for a battery secondary sealing device, a secondary sealing device and a battery manufacturing device.
Background
In the manufacturing process of the flexible package lithium battery of the current 3C product, a large amount of gas is generated in the formation process of the battery, and the gas needs to be pumped out in the secondary sealing process. The air exhaust mode of the lithium battery of the current 3C product in the secondary sealing equipment is to horizontally place the battery into a sealed cavity, vacuumize the cavity to form a negative pressure state in the cavity, puncture the air bag of the battery by using a scalpel as a bayonet, and exhaust the gas in the battery from the bayonet. Such an air extraction structure has two drawbacks:
1. when the air is pumped out, part of the electrolyte is pumped out, so that the electrolyte is wasted;
2. the drawn electrolyte splash may affect the battery appearance, and the electrolyte crystallization may affect the packaging stability.
In view of the above, it is necessary to provide a technical solution to the above problems.
SUMMERY OF THE UTILITY MODEL
One of the objects of the present invention is: the novel air exhaust structure of the secondary sealing equipment of the polymer flexible package lithium battery is provided, the problem that electrolyte is exhausted in the air exhaust process of the battery in the prior art is solved, and the technical effects of less electrolyte injection and less exhaust and reduction of electrolyte waste are achieved; meanwhile, the phenomenon of poor battery appearance caused by the fact that a bayonet pierces the air bag and splashes electrolyte is improved, and the fatal bad risk that the thickness of a packaging seal is too thick due to the fact that the splashed electrolyte is crystallized and dropped is reduced.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an air exhaust structure for battery secondary sealing equipment comprises:
a first suction cup;
the second sucker and the first sucker are respectively arranged on two sides of the battery air bag;
the suction needle is arranged on the first sucker and/or the second sucker and is used for puncturing the battery air bag; a first channel is arranged in the suction needle and is used for pumping out gas in the battery;
and the driving piece is electrically connected with the suction needle and is used for controlling the extension and retraction of the suction needle.
Preferably, the driving member is a cylinder, and the extension and retraction of the suction needle are controlled by using the air pressure difference between the cylinder and the battery air bag.
Preferably, the air exhaust structure further comprises a vacuum pump, and the first channel is communicated with the vacuum pump through a vacuum pipeline. During vacuumizing, the needle opening of the suction needle is arranged in the battery air bag and is not in contact with the battery air bag, so that the liquid electrolyte can smoothly enter the first channel, the vacuum pipeline and the vacuum pump in sequence, the vacuumizing process is smooth, and the vacuumizing efficiency is improved.
Preferably, the diameter of one end of the suction needle close to the battery air bag is gradually reduced along the direction close to the battery air bag to form a sharp needle head, so that the aluminum plastic film can be conveniently punctured and the aluminum plastic film can enter the battery air bag.
Preferably, the first suction cup and/or the second suction cup are/is provided with at least 2 division bars along the gas extraction direction on one side facing the battery airbag, and the first suction cup and/or the second suction cup are/is sequentially divided into a first part, a second part and a third part. The parting bead is used for preventing that suction needle first sucking disc and second sucking disc from droing at the evacuation in-process, causes vacuum to reduce, and first portion and third portion are used for adsorbing the plastic-aluminum membrane surface prevents to lose heart.
Preferably, the parting bead sets up in same sucking disc with inhaling the needle, and 2 at least parting beads set up respectively in the both sides of inhaling the needle, prevent the condition that one side is lost air.
Preferably, the first part and the third part are tightly attached to the battery air bag, so that the first part and the third part are firmly adsorbed on the surface of the aluminum plastic film.
Preferably, the length ratio of the first portion, the second portion, and the third portion is 1: (1-3): (0.8 to 1.2), and more preferably, the length ratio of the first portion, the second portion, and the third portion is 1: 1: 1.
the second object of the present invention is to: the two-sealing equipment is simple in structure, can effectively solve the problem of electrolyte splashing and reduce the pollution of the surface of the battery cell by the electrolyte.
The third object of the present invention is to: the battery manufacturing equipment comprises the secondary equipment described in the specification, and the battery manufactured by the battery manufacturing equipment is stable in chemical performance.
Compared with the prior art, the utility model has the beneficial effects that: the existing bayonet structure is changed into a structure of a sucker and a suction needle, so that equipment structural members such as a vacuum cavity structure, a bayonet structure, a pressing plate structure and the like can be eliminated, and the equipment structure is simplified. The vacuum degree in the battery cell is ensured through the structure of the sucking disc and the sucking needle, the sucking disc is used for tightly adhering to the surface of the battery cell to prevent air leakage, the air bag is opened, and the sucking needle is inserted into the air bag of the battery cell to provide a space; inhale needle and insert electric core air pocket the inside and bleed, can guarantee simultaneously can not take electrolyte out, prevent that electric core surface from being polluted by electrolyte, promote simultaneously and protect the liquid uniformity, avoid other badly that electrolyte crystallization arouses.
Drawings
FIG. 1 is a schematic structural diagram of the air pumping structure of the present invention.
FIG. 2 is a schematic structural diagram of embodiment 1 of the present invention.
FIG. 3 is a schematic structural diagram of embodiment 2 of the present invention.
FIG. 4 is a schematic structural diagram of embodiment 3 of the present invention.
FIG. 5 is a schematic view showing a state of use in the present invention.
Fig. 6 is a plan view of a state of use in the present invention.
In the figure: 1-a first suction cup; 2-a second suction cup; 3-battery airbag; 4-sucking needle; 41-a first channel; 5-vacuum pipeline; 6-a vacuum pump; 7-parting beads; 8-a first section; 9-a second section; 10-third section; 11-electric core; 12-pole ear.
Detailed Description
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
The air exhaust structure for the secondary battery sealing equipment comprises a first sucker 1, a second sucker 2, a suction needle 4 and a driving piece, wherein the first sucker is connected with the second sucker 2; the second sucker and the first sucker 2 are respectively arranged at two sides of the battery air bag 3; the suction needle 4 is arranged on the first sucker 1 and/or the second sucker 2 and is used for puncturing the battery air bag 3; a first channel 41 is arranged in the suction needle 4 and is used for pumping gas in the battery; the driving member is electrically connected to the suction needle 4 for controlling the extension and retraction of the suction needle 4.
Preferably, the driving member is a cylinder, and the extension and retraction of the suction needle 4 are controlled by the air pressure difference between the cylinder and the battery air bag 3.
Preferably, the air-extracting structure further comprises a vacuum pump 6, and the first passage 41 is communicated with the vacuum pump 6 through a vacuum pipe 5. During the evacuation, the needle mouth of the suction needle 4 is arranged in the battery air bag 3 and is not in contact with the battery air bag 3, so that the liquid electrolyte can smoothly enter the first channel 41, the vacuum pipeline 5 and the vacuum pump 6 in sequence, the evacuation process is smooth, and the evacuation efficiency is improved.
Preferably, the diameter of one end of the suction needle 4 close to the battery air bag 3 is gradually reduced along the direction close to the battery air bag 3 to form a sharp needle head, so that the aluminum plastic film can be conveniently punctured and enter the battery air bag 3.
Preferably, the suction cup is provided with 2 division bars 7 in the gas extraction direction on the side facing the battery airbag 3, and the suction cup is divided into a first portion 8, a second portion 9, and a third portion 10 in this order. The parting bead 7 is used for preventing that suction needle 4 sucking disc drops in evacuation process, causes the vacuum to reduce, and first portion 8 and third portion 10 are used for adsorbing on the plastic-aluminum membrane surface, prevent losing air.
Preferably, parting bead 7 and suction needle 4 set up in same sucking disc, and 2 parting beads 7 set up respectively in the both sides of suction needle 4, prevent the condition that one side is lost air.
Preferably, the first portion 8 and the third portion 10 are tightly attached to the battery bag 3, so that the first portion 8 and the third portion 10 are firmly attached to the surface of the aluminum plastic film.
Preferably, the length ratio of the first portion 8, the second portion 9, and the third portion 10 is 1: (1-3): (0.8 to 1.2), and more preferably, the length ratio of the first portion 8, the second portion 9, and the third portion 10 is 1: 1: 1.
in order to make the technical solutions and advantages of the present invention clearer, the present invention and its advantages will be described in further detail below with reference to the following detailed description and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
Example 1
Fig. 2 shows an air exhaust structure for a secondary battery sealing device according to the present invention, which comprises a first suction cup 1, a second suction cup 2, a suction needle 4 and a driving member; the second sucking disc 2 and the first sucking disc 1 are respectively arranged at two sides of the battery air bag 3; the suction needle 4 is arranged on the first sucker 1 and the second sucker 2 and is used for puncturing the battery air bag 3; a first channel 41 is arranged in the suction needle 4 and is used for pumping gas in the battery; and the driving piece is electrically connected with the suction needle 4 and is used for controlling the extension and retraction of the suction needle 4.
The driving part is a cylinder, and the extending and retracting of the suction needle 4 are controlled by the air pressure difference between the cylinder and the battery air bag 3.
The air exhaust structure further comprises a vacuum pump 6, and the first passage 41 is communicated with the vacuum pump 6 through a vacuum pipeline 5. During the evacuation, the needle mouth of the suction needle 4 is arranged in the battery air bag 3 and is not in contact with the battery air bag 3, so that the liquid electrolyte can smoothly enter the first channel 41, the vacuum pipeline 5 and the vacuum pump 6 in sequence, the evacuation process is smooth, and the evacuation efficiency is improved.
The diameter of one end of the suction needle 4 close to the battery air bag 3 is gradually reduced along the direction close to the battery air bag 3 to form a sharp needle head, so that the aluminum plastic film can be conveniently punctured and the aluminum plastic film can enter the battery air bag 3.
The first suction cup 1 and the second suction cup 2 are provided with 2 division bars 7 along the gas extraction direction on the sides facing the battery airbag 3, and the first suction cup 1 and the second suction cup 2 are sequentially divided into a first portion 8, a second portion 9, and a third portion 10. The parting bead 7 is used for preventing that suction needle 4 drops at first sucking disc 1 and second sucking disc 2 in the evacuation process, causes vacuum to reduce, and first portion 8 and third portion 10 are used for adsorbing on the plastic-aluminum membrane surface, prevent losing heart.
Parting bead 7 and suction needle 4 set up in first sucking disc 1 and second sucking disc 2, and 2 parting beads 7 set up respectively in the both sides of sucking needle 4, prevent the condition that one side is lost heart.
The first part 8 and the third part 10 are tightly attached to the battery air bag 3, and the first part 8 and the third part 10 are ensured to be firmly adsorbed on the surface of the aluminum plastic film.
Preferably, the length ratio of the first portion 8, the second portion 9, and the third portion 10 is 1: (1-3): (0.8 to 1.2), and more preferably, the length ratio of the first portion 8, the second portion 9, and the third portion 10 is 1: 1: 1.
as shown in fig. 5 to 6, when the vacuum suction device is used, the vacuum suction device is respectively installed on two sides of a battery air bag 3, a first suction cup 1 and a second suction cup 2 are enabled to adsorb an aluminum plastic film through vacuum negative pressure, the first suction cup 1 and the second suction cup 2 move towards two sides to pull apart the battery air bag 3, so that the aluminum plastic film is opened, a suction needle 4 is pushed by a driving part to puncture the aluminum plastic film and enter the battery air bag 3, a vacuum pump 6 is started, gas in a battery enters the vacuum pump 6 through a first channel 41 and a vacuum pipeline 5 in sequence, vacuumizing is completed, after the gas is pumped out, the suction needle 4 is retracted through the driving part, the suction cups are broken to be vacuum and leave the battery air bag 3, and the air pumping flow is completed.
Example 2
Fig. 3 shows an air exhaust structure for a secondary battery sealing device according to the present invention, which comprises a first suction cup 1, a second suction cup 2, a suction needle 4 and a driving member; the second sucking disc 2 and the first sucking disc 1 are respectively arranged at two sides of the battery air bag 3; the suction needle 4 is arranged on the first sucker 1 and used for puncturing the battery air bag 3; a first channel 41 is arranged in the suction needle 4 and is used for pumping gas in the battery; and the driving piece is electrically connected with the suction needle 4 and is used for controlling the extension and retraction of the suction needle 4. And the suction needle 4 is not arranged in the second suction cup 2, and the second suction cup is a conventional suction cup.
Specifically, the driving member is a cylinder, and the extension and retraction of the suction needle 4 are controlled by using the air pressure difference between the cylinder and the battery air bag 3.
The air exhaust structure further comprises a vacuum pump 6, and the first passage 41 is communicated with the vacuum pump 6 through a vacuum pipeline 5. During the evacuation, the needle mouth of the suction needle 4 is arranged in the battery air bag 3 and is not in contact with the battery air bag 3, so that the liquid electrolyte can smoothly enter the first channel 41, the vacuum pipeline 5 and the vacuum pump 6 in sequence, the evacuation process is smooth, and the evacuation efficiency is improved.
The diameter of one end of the suction needle 4 close to the battery air bag 3 is gradually reduced along the direction close to the battery air bag 3 to form a sharp needle head, so that the aluminum plastic film can be conveniently punctured and the aluminum plastic film can enter the battery air bag 3.
The first suction cup 1 is provided with 2 division bars 7 in the gas extraction direction on the side facing the battery airbag 3, and divides the first suction cup 1 into a first portion 8, a second portion 9, and a third portion 10 in this order. The parting bead 7 is used for preventing that suction needle 4 drops at first sucking disc 1 of evacuation in-process, causes vacuum to reduce, and first portion 8 and third portion 10 are used for adsorbing on the plastic-aluminum membrane surface, prevent losing air.
Parting bead 7 and suction needle 4 set up in first sucking disc 1, and 2 parting beads 7 set up respectively in the both sides of suction needle 4, prevent the condition that one side is lost heart.
The first part 8 and the third part 10 are tightly attached to the battery air bag 3, and the first part 8 and the third part 10 are ensured to be firmly adsorbed on the surface of the aluminum plastic film.
Preferably, the length ratio of the first portion 8, the second portion 9, and the third portion 10 is 1: (1-3): (0.8-1.2), and more preferably, the length ratio of the first portion 8, the second portion 9, and the third portion 10 is 1: 1: 1.
when the vacuum suction device is used, the vacuum suction device is respectively arranged at two sides of a battery air bag 3, so that an aluminum-plastic film is adsorbed by a first suction disc 1 and a second suction disc 2, the battery air bag 3 is pulled open by the first suction disc 1 and the second suction disc 2, the aluminum-plastic film is opened, a suction needle 4 is pushed by a driving piece to pierce the aluminum-plastic film and enter the battery air bag 3, a vacuum pump 6 is started, gas in a battery sequentially passes through a first channel 41 and a vacuum pipeline 5 and enters the vacuum pump 6 to complete vacuumizing, after the gas is pumped out, the suction needle 4 is retracted by the driving piece, the suction discs break the vacuum and leave the battery air bag 3, and the air pumping process is completed.
Example 3
Fig. 4 shows an air exhaust structure for a secondary battery sealing device according to the present invention, which comprises a first suction cup 1, a second suction cup 2, a suction needle 4 and a driving member; the second sucking disc 2 and the first sucking disc 1 are respectively arranged at two sides of the battery air bag 3; the suction needle 4 is arranged on the second sucker 2 and is used for puncturing the battery air bag 3; a first channel 41 is arranged in the suction needle 4 and is used for pumping gas in the battery; and the driving piece is electrically connected with the suction needle 4 and is used for controlling the extension and retraction of the suction needle 4. The first suction cup 1 is a conventional suction cup without the suction needle 4.
Specifically, the driving member is a cylinder, and the extension and retraction of the suction needle 4 are controlled by using the air pressure difference between the cylinder and the battery air bag 3.
The air exhaust structure further comprises a vacuum pump 6, and the first channel 41 is communicated with the vacuum pump 6 through a vacuum pipeline 5. During the evacuation, the needle mouth of the suction needle 4 is arranged in the battery air bag 3 and is not in contact with the battery air bag 3, so that the liquid electrolyte can smoothly enter the first channel 41, the vacuum pipeline 5 and the vacuum pump 6 in sequence, the evacuation process is smooth, and the evacuation efficiency is improved.
The diameter of one end of the suction needle 4 close to the battery air bag 3 is gradually reduced along the direction close to the battery air bag 3 to form a sharp needle head, so that the aluminum plastic film can be conveniently punctured and the aluminum plastic film can enter the battery air bag 3.
The second suction cup 2 is provided with 2 division bars 7 along the gas extraction direction on the side facing the battery airbag 3, and the second suction cup 2 is divided into a first portion 8, a second portion 9, and a third portion 10 in this order. The parting bead 7 is used for preventing that suction needle 4 drops at evacuation in-process second sucking disc 2, causes vacuum to reduce, and first portion 8 and third portion 10 are used for adsorbing on the plastic-aluminum membrane surface, prevent losing air.
Parting bead 7 and suction needle 4 set up in second sucking disc 2, and 2 parting beads 7 set up respectively in the both sides of suction needle 4, prevent the condition that one side is lost heart.
The first part 8 and the third part 10 are tightly attached to the battery air bag 3, and the first part 8 and the third part 10 are ensured to be firmly adsorbed on the surface of the aluminum plastic film.
Preferably, the length ratio of the first portion 8, the second portion 9, and the third portion 10 is 1: (1-3): (0.8 to 1.2), and more preferably, the length ratio of the first portion 8, the second portion 9, and the third portion 10 is 1: 1: 1.
when the vacuum suction device is used, the vacuum suction device is respectively arranged at two sides of a battery air bag 3, so that an aluminum-plastic film is adsorbed by a first suction disc 1 and a second suction disc 2, the battery air bag 3 is pulled open by the first suction disc 1 and the second suction disc 2, the aluminum-plastic film is opened, a suction needle 4 is pushed by a driving piece to pierce the aluminum-plastic film and enter the battery air bag 3, a vacuum pump 6 is started, gas in a battery sequentially passes through a first channel 41 and a vacuum pipeline 5 and enters the vacuum pump 6 to complete vacuumizing, after the gas is pumped out, the suction needle 4 is retracted by the driving piece, the suction discs break the vacuum and leave the battery air bag 3, and the air pumping process is completed.
Variations and modifications to the above-described embodiments may also occur to those skilled in the art, which fall within the scope of the utility model as disclosed and taught herein. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious improvement, replacement or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (10)

1. The utility model provides a two equipment of battery are with structure of bleeding which characterized in that includes:
a first suction cup;
the second sucking disc and the first sucking disc are respectively arranged at two sides of the battery air bag;
the suction needle is arranged on the first sucker and/or the second sucker and is used for puncturing the battery air bag; a first channel is arranged in the suction needle and is used for pumping out gas in the battery;
and the driving piece is electrically connected with the suction needle and is used for controlling the extension and retraction of the suction needle.
2. The air exhaust structure for the secondary battery sealing equipment as claimed in claim 1, wherein the driving member is a cylinder.
3. The evacuation structure for a battery secondary sealing device according to claim 1, further comprising a vacuum pump, wherein the first channel is communicated with the vacuum pump through a vacuum pipeline.
4. The air exhaust structure for a battery secondary sealing device according to claim 1, wherein the diameter of the end of the suction needle near the battery air bag is gradually reduced in a direction near the battery air bag.
5. The air exhaust structure for a battery secondary sealing device according to claim 1, wherein at least 2 division bars are provided on the side of the first suction cup and/or the second suction cup facing the battery airbag in the air exhaust direction, and the first suction cup and/or the second suction cup are divided into a first portion, a second portion, and a third portion in this order.
6. The air exhaust structure for the secondary battery sealing equipment according to claim 5, wherein the division bars and the suction needles are arranged in the same suction cup, and at least 2 division bars are respectively arranged on two sides of the suction needles.
7. The air extraction structure for a secondary battery pack according to claim 6, wherein the first portion and the third portion are closely attached to the battery bag.
8. The air extraction structure for the secondary battery sealing equipment according to any one of claims 5 to 7, wherein the length ratio of the first portion to the second portion to the third portion is 1: (1-3): (0.8 to 1.2).
9. A secondary battery sealing apparatus comprising the gas exhaust structure for a secondary battery sealing apparatus according to any one of claims 1 to 8.
10. A battery manufacturing apparatus comprising the secondary battery apparatus of claim 9.
CN202122207423.9U 2021-09-13 2021-09-13 Air exhaust structure for battery secondary sealing equipment, secondary sealing equipment and battery manufacturing equipment Active CN216450776U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122207423.9U CN216450776U (en) 2021-09-13 2021-09-13 Air exhaust structure for battery secondary sealing equipment, secondary sealing equipment and battery manufacturing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122207423.9U CN216450776U (en) 2021-09-13 2021-09-13 Air exhaust structure for battery secondary sealing equipment, secondary sealing equipment and battery manufacturing equipment

Publications (1)

Publication Number Publication Date
CN216450776U true CN216450776U (en) 2022-05-06

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Application Number Title Priority Date Filing Date
CN202122207423.9U Active CN216450776U (en) 2021-09-13 2021-09-13 Air exhaust structure for battery secondary sealing equipment, secondary sealing equipment and battery manufacturing equipment

Country Status (1)

Country Link
CN (1) CN216450776U (en)

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