CN210403776U - Electrochemical energy storage device - Google Patents
Electrochemical energy storage device Download PDFInfo
- Publication number
- CN210403776U CN210403776U CN201921327754.2U CN201921327754U CN210403776U CN 210403776 U CN210403776 U CN 210403776U CN 201921327754 U CN201921327754 U CN 201921327754U CN 210403776 U CN210403776 U CN 210403776U
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- sealing
- energy storage
- storage device
- electrochemical energy
- sealing plug
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- 238000012983 electrochemical energy storage Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 113
- 238000001125 extrusion Methods 0.000 claims abstract description 3
- 239000003292 glue Substances 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 7
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000005518 electrochemistry Effects 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 description 13
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to an electrochemical energy storage device, which comprises a shell, an electric core and an elastic sealing plug, wherein the electric core is sealed in the shell by mechanical extrusion between the sealing plug and the shell; the end face, away from the battery core, of the sealing plug is provided with a sealing piece, the outer side face of the sealing piece is abutted to the shell, and the hardness of the sealing piece is larger than that of the sealing plug. The setting of sealing member both can prevent to seal the stopper and warp and the weeping, itself can prevent the weeping with the shell cooperation again, makes the utility model discloses an electrochemistry energy storage device's weeping prevention ability obtains further promotion. The arrangement of the lug boss on the sealing plug can prevent the sealing plug from being deformed due to external force to cause liquid leakage when the waist is restrained, and can also provide convenience for the member or assembly of the sealing element and facilitate production.
Description
Technical Field
The utility model belongs to the energy storage equipment field relates to an electrochemistry energy memory device.
Background
An electrochemical energy storage device is generally formed by housing an element impregnated with an electrolyte in a cylindrical case and sealing the element with an elastic plug provided with positive and negative electrodes, and the elastic plug is generally made of a rubber material having good insulation and airtightness and corrosion resistance.
In the existing electrochemical energy storage device, the sealing is generally realized by a rubber plug, and the rubber plug is easy to deform to cause electrolyte leakage. Patent CN201220346794 discloses a lithium ion battery, which comprises a battery core, a cap and a housing, wherein the battery core is filled in the housing, and is formed by winding or laminating positive and negative electrode sheets and a diaphragm, and positive and negative electrode tabs respectively connected with the positive and negative electrode sheets are led out, the cap is made of rubber or plastic, a cover plate made of rubber is easy to deform and leak, so that the yield is reduced, and the cap made of plastic is not beneficial to the improvement of explosion-proof performance; patent CN204696162U discloses a sealing body and an electrochemical energy device using the same, wherein the sealing body comprises an elastic rubber body and a rigid panel arranged on the top surface of the elastic rubber body and integrated with the elastic rubber body, the elastic rubber body is coated on the side surface and at least one end surface of the rigid panel, so that the leakage probability of a finished product caused by the deformation of the elastic rubber body can be reduced to a certain extent, but the arrangement of positive and negative electrodes and explosion-proof measures is inconvenient, and at least 3 holes need to be formed in the rigid panel to meet the arrangement of the positive and negative electrodes and the explosion-proof valve, thereby complicating the production process; in addition, the elastic rubber body covers the side surface of the rigid panel, and when the elastic rubber body is extruded, the elastic rubber body part positioned at the periphery of the rigid panel can still generate micro deformation, so that the leakage cannot be effectively prevented.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the present invention is to provide an electrochemical energy storage device to further improve the anti-leakage capability of the electrochemical energy storage device.
In order to solve the technical problem, the utility model discloses a technical scheme does:
an electrochemical energy storage device comprises a shell, a battery cell and an elastic sealing plug, wherein the battery cell is sealed in the shell through mechanical extrusion between the sealing plug and the shell; the end face, away from the battery core, of the sealing plug is provided with a sealing piece, the outer side face of the sealing piece is abutted to the shell, and the hardness of the sealing piece is larger than that of the sealing plug.
Optionally, the sealing element is an annular element, a boss is arranged on the end face, away from the battery core, of the sealing plug, and the inner annular face of the annular element is abutted to the outer side face of the boss. So, the setting of boss, the stopper is sealed when can preventing to beam waist on the one hand and is out of shape because of the external force, forms the bad and weeping of outward appearance, and on the other hand, the boss, seal stopper terminal surface, the inboard surface of casing enclose into the recess that holds the sealing member, during production, can be directly in this recess interior point structure glue, need not worry that liquid structure glue flows into other regions such as explosion-proof valve, also need not to carry out extra operation of punching, treat that the structure glues the solidification back, can form the sealing member, convenient production. Alternatively, the seal may be prefabricated and assembled directly at the production stage.
The hardness of the seal is preferably 2 times or more, more preferably 5 times or more the hardness of the seal plug.
In one embodiment, the sealing plug is provided with an explosion-proof valve. The specific structure of the explosion-proof valve can refer to the prior art.
Preferably, the position of the explosion-proof valve corresponds to the position of the boss, so that the sealing element is prevented from having adverse effects on the performance of the explosion-proof valve.
Optionally, the sealing plug is made of ethylene propylene diene monomer or butyl rubber.
In one embodiment, the sealing element covers the end face of the sealing plug, and the bottom of the casing is provided with an explosion-proof indentation, so that the safety of the electrochemical energy storage device can be ensured while the leakage is prevented.
Optionally, the seal is made of structural glue.
Optionally, the sealing member is made by epoxy glue, and epoxy glue application scope is wide, uses the curing intensity higher with the curing agent cooperation, can satisfy the deformation demand of preapring for an unfavorable turn of events well.
Optionally, 2 through holes are formed in the sealing plug, positive and negative guide pins are respectively inserted into the 2 through holes, one ends of the positive and negative guide pins are connected with the battery cell, and the other ends of the positive and negative guide pins are led out through positive and negative lead-out wires.
Optionally, the electric connector further comprises a control panel, the leading-out ends of the positive and negative electrode leading-out wires are connected with the control panel, the shell extends to the upper portion of the control panel and is sealed through the cover plate, the top surface of the cover plate is provided with a first leading-out contact connected with one of the 2 positive and negative electrode leading-out wires, and the outer side surface of the shell is provided with a second leading-out contact connected with the other 1 positive and negative electrode leading-out wires.
Optionally, the open end of casing is buckled towards the sealing member and is supported with the top surface butt of sealing member, so, can guarantee that the sealing member all the time with seal stopper in close contact with, the performance is prevented the shape ability.
Optionally, the housing is cylindrical or block-shaped as a whole, and further, is prismatic or cylindrical, and may be specifically selected according to needs.
Optionally, the electrochemical energy storage device is one of a primary battery, a secondary battery, a super capacitor and an electrolytic capacitor. Preferably a capacitive lithium ion battery or a supercapacitor.
The electrochemical energy storage device can not increase the difficulty or complexity of the production process, can still realize mature automatic production, has simple process and few process steps, and reduces the processing control difficulty; the sealing plug is additionally provided with the boss, so that the sealing plug can be prevented from deforming due to external force when the waist is restrained, the sealing plug is provided with the explosion-proof valve, explosion prevention is realized, and the safety and reliability of devices are improved; in addition, the sealing element on the sealing plug is hard and tightly abutted with the shell to form sealing contact so as to play a role in preventing liquid leakage, and the sealing element can effectively prevent the sealing plug from deforming and leaking liquid so as to form multiple protection and further ensure the safety and reliability of the battery.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the setting of sealing member both can prevent to seal the stopper and warp and the weeping, itself can prevent the weeping with the shell cooperation again, makes the utility model discloses an electrochemistry energy storage device's weeping prevention ability obtains further promotion.
(2) The arrangement of the lug boss on the sealing plug can prevent the sealing plug from being deformed due to external force to cause liquid leakage when the waist is restrained, and can also provide convenience for the member or assembly of the sealing element and facilitate production.
Drawings
Fig. 1 is a schematic diagram of an electrochemical energy storage device according to embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of another electrochemical energy storage device according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of an electrochemical energy storage device according to embodiment 2 of the present invention.
Fig. 4 is a schematic structural view (overall) of an electrochemical energy storage device according to embodiment 3 of the present invention.
Fig. 5 is a schematic structural view (partial) of an electrochemical energy storage device according to embodiment 3 of the present invention.
In the figure, 1-shell, 2-battery core, 3-adhesive tape, 4-sealing plug, 5-through hole, 6-sealing piece, 7-bending part, 8-explosion-proof valve, 9-positive and negative leading-out wire, 10-control board, 11-first leading-out contact, 12-second leading-out contact, 13-mechanical sealing position, and 14-cover plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
Example 1
Referring to fig. 1 or fig. 2, an electrochemical energy storage device includes a casing 1, a cell 2 and an elastic sealing plug 4, where the cell 2 is sealed in the casing 1 by mechanical compression between the sealing plug 4 and the casing 1; the end face, away from the battery core 2, of the sealing plug 4 is provided with a sealing element 6, the outer side face of the sealing element 6 is abutted to the shell 1, and the hardness of the sealing element 6 is greater than that of the sealing plug 4.
The sealing element 6 is a circular ring-shaped element, the sealing plug 4 is provided with a boss on the end face away from the battery core 2, the inner ring face of the circular ring-shaped element is abutted to the outer side face of the boss, and optionally, the top face of the boss is flush with the top face of the sealing element 6. An explosion-proof valve 8 is arranged in the area where the boss is arranged on the sealing plug 4. The seal 6 is made of structural glue. The tip end surface of the sealing plug is circular, and the difference between the outer diameter and the inner diameter of the sealing member 6 is 1/2 of the radius of the tip end surface of the sealing plug. Optionally, the battery cell is formed by connecting a positive plate and a negative plate with a positive guide pin and a negative guide pin through riveting or ultrasonic welding and winding a diaphragm.
A mechanical compression in the form of a recess is formed between the side of the sealing plug 4 and the housing 1, which is generally referred to as a mechanical sealing point 13.
The sealing plug 4 is provided with 2 through holes 5, the inside of each through hole 5 is respectively inserted with a positive guide pin and a negative guide pin, one end of each positive guide pin is connected with the battery cell, and the other end of each positive guide pin is led out through a positive lead-out wire 9 and a negative lead-out wire 9.
The open end of the housing 1 is bent toward the sealing member 6 (forming a bent portion 7), and abuts against the top surface of the sealing member 6. The electrochemical energy storage device is a lithium ion battery or a super capacitor.
The shell is integrally cylindrical.
Example 2
Referring to fig. 3, an electrochemical energy storage device includes a casing 1, a cell 2, and an elastic sealing plug 4, where the cell 2 is sealed in the casing 1 by mechanical squeezing between the sealing plug 4 and the casing 1; the end face, away from the battery core 2, of the sealing plug 4 is provided with a sealing element 6, the outer side face of the sealing element 6 is abutted to the shell 1, and the hardness of the sealing element 6 is greater than that of the sealing plug 4.
Wherein, the sealing element 6 covers the top end surface of the sealing plug 4, and the bottom of the shell 1 is provided with an explosion-proof indentation 12. The sealing plug 4 is provided with an explosion-proof valve 8. The seal 6 is made of structural glue. A mechanical compression in the form of a recess is formed between the side of the closure 4 and the housing 1.
The sealing plug 4 is provided with 2 through holes 5, the inside of each through hole 5 is respectively inserted with a positive guide pin and a negative guide pin, one end of each positive guide pin is connected with the battery cell, and the other end of each positive guide pin is led out through a positive lead-out wire 9 and a negative lead-out wire 9.
The open end of the housing 1 is bent toward the sealing member 6 (forming a bent portion 7), and abuts against the top surface of the sealing member 6. The electrochemical energy storage device is a lithium ion battery or a super capacitor. The shell is integrally cylindrical.
Example 3
As shown in fig. 4 and 5, an electrochemical energy storage device includes a casing 1, a cell 2 and an elastic sealing plug 4, wherein the cell 2 is sealed in the casing 1 by mechanical compression between the sealing plug 4 and the casing 1; the end face, away from the battery core 2, of the sealing plug 4 is provided with a sealing element 6, the outer side face of the sealing element 6 is abutted to the shell 1, and the hardness of the sealing element 6 is greater than that of the sealing plug 4.
The sealing element 6 is an annular element, a boss is arranged on the end face, away from the battery core 2, of the sealing plug 4, and the inner annular face of the annular element is abutted to the outer side face of the boss. The sealing plug 4 is provided with an explosion-proof valve 8. The seal 6 is made of structural glue.
A mechanical compression in the form of a recess is formed between the side of the closure 4 and the housing 1.
The sealing plug 4 is provided with 2 through holes 5, the inside of each through hole 5 is respectively inserted with a positive guide pin and a negative guide pin, one end of each positive guide pin is connected with the battery cell, and the other end of each positive guide pin is led out through a positive lead-out wire 9 and a negative lead-out wire 9.
The open end of the housing 1 is bent toward the sealing member 6 (forming a bent portion 7), and abuts against the top surface of the sealing member 6. The shell is integrally cylindrical.
The improved structure of the battery shell is characterized by further comprising a control panel 10, leading-out ends of the positive and negative electrode leading-out wires 9 are connected with the control panel 10, the shell 1 extends to the upper portion of the control panel 10 and is sealed through a cover plate 14, a first leading-out contact 11 (a negative leading-out contact) connected with one of the 2 positive and negative electrode leading-out wires 9 is arranged on the top surface of the cover plate 14, and a second leading-out contact 12 (a positive leading-out contact) connected with the other 1 positive and negative electrode leading-out wire. Optionally, various circuit components can be integrated on the control board 10 to meet the actual requirement.
The electrochemical energy storage device is a lithium ion battery or a super capacitor.
The above-mentioned embodiments are illustrative and should not be construed as limiting the scope of the invention, which is defined by the appended claims, and all modifications of the equivalent forms of the present invention which are obvious to those skilled in the art after reading the present invention.
Claims (10)
1. An electrochemical energy storage device comprises a shell (1), an electric core (2) and an elastic sealing plug (4), wherein the electric core (2) is sealed in the shell (1) through mechanical extrusion between the sealing plug (4) and the shell (1); the battery sealing plug is characterized in that a sealing piece (6) is arranged on the end face, away from the battery core (2), of the sealing plug (4), the outer side face of the sealing piece (6) is abutted to the shell (1), and the hardness of the sealing piece (6) is greater than that of the sealing plug (4).
2. An electrochemical energy storage device according to claim 1, characterized in that the sealing member (6) is a ring-shaped member, a boss is arranged on the end surface of the sealing plug (4) far away from the battery core (2), and the inner ring surface of the ring-shaped member is abutted with the outer side surface of the boss.
3. An electrochemical energy storage device according to claim 1 or 2, characterized in that said sealing plug (4) is provided with an explosion-proof valve (8).
4. Electrochemical energy storage device according to claim 1, characterized in that the sealing element (6) covers the end face of the closure plug (4), and the bottom of the housing (1) is provided with an explosion-proof indentation.
5. Electrochemical energy storage device according to any of claims 1, 2, 4, characterized in that the sealing member (6) is made of structural glue.
6. Electrochemical energy storage device according to any of claims 1, 2, 4, characterized in that the sealing (6) is made of epoxy glue.
7. The electrochemical energy storage device according to any one of claims 1, 2 and 4, wherein 2 through holes (5) are formed in the sealing plug (4), positive and negative guide pins are respectively inserted into the 2 through holes (5), one end of each positive and negative guide pin is connected with the battery cell, and the other end of each positive and negative guide pin is led out through a positive and negative lead-out wire (9).
8. An electrochemical energy storage device as claimed in claim 7, further comprising a control board (10), wherein the leading ends of the positive and negative electrode lead wires (9) are connected to the control board (10), the casing (1) extends above the control board (10) and is sealed by a cover plate (14), the cover plate (14) is provided with a first leading contact (11) connected to one of the 2 positive and negative electrode lead wires (9) on the top surface, and the casing (1) is provided with a second leading contact (12) connected to the other 1 positive and negative electrode lead wires (9) on the outer side surface.
9. An electrochemical energy storage device according to any of claims 1, 2, 4, 8, characterized in that the open end of the casing (1) is bent towards the sealing member (6) and abuts the top surface of the sealing member (6).
10. An electrochemical energy storage device as in any of claims 1, 2, 4, 8, wherein said electrochemical energy storage device is one of a primary battery, a secondary battery, a super capacitor, an electrolytic capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921327754.2U CN210403776U (en) | 2019-08-16 | 2019-08-16 | Electrochemical energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921327754.2U CN210403776U (en) | 2019-08-16 | 2019-08-16 | Electrochemical energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210403776U true CN210403776U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921327754.2U Active CN210403776U (en) | 2019-08-16 | 2019-08-16 | Electrochemical energy storage device |
Country Status (1)
| Country | Link |
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| CN (1) | CN210403776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584253A (en) * | 2020-05-08 | 2020-08-25 | 肇庆绿宝石电子科技股份有限公司 | Super capacitor and glue filling method and application thereof |
-
2019
- 2019-08-16 CN CN201921327754.2U patent/CN210403776U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584253A (en) * | 2020-05-08 | 2020-08-25 | 肇庆绿宝石电子科技股份有限公司 | Super capacitor and glue filling method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210428 Address after: 442000 No.1, Industrial Park North Road, Chengguan Town, Yunxi County, Shiyan City, Hubei Province Patentee after: Hubei new endurance Power Technology Co.,Ltd. Address before: No.38, group 2, Yuexing village, gupei Town, Miluo City, Yueyang City, Hunan Province Patentee before: Li Jianfeng |
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| TR01 | Transfer of patent right |