CN212485486U - Battery, battery processing device and battery module - Google Patents
Battery, battery processing device and battery module Download PDFInfo
- Publication number
- CN212485486U CN212485486U CN202021044744.0U CN202021044744U CN212485486U CN 212485486 U CN212485486 U CN 212485486U CN 202021044744 U CN202021044744 U CN 202021044744U CN 212485486 U CN212485486 U CN 212485486U
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- battery
- sealing
- pressure relief
- casing
- pressure
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- 238000007789 sealing Methods 0.000 claims abstract description 52
- 238000003466 welding Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 9
- 238000005538 encapsulation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 238000007731 hot pressing Methods 0.000 description 11
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model relates to a new energy automobile power battery's technical field specifically discloses a battery, battery processingequipment and battery module. The battery comprises a shell and an electric core encapsulated in the shell, wherein the two sides of the length direction of the electric core are respectively provided with a pole lug, the two pole lugs are in one-to-one correspondence and respectively extend out of the two opposite sides of the shell, the shell is provided with a sealing area for sealing the shell on one side where the pole lugs extend out, the shell is further provided with a pressure relief opening in the sealing area, the first end of the pressure relief opening is communicated with the inside of the shell, the second end of the pressure relief opening is sealed, and at least part of the second end of. The battery provided by the utility model not only ensures the good performance of battery sealing, but also ensures that when the internal pressure of the battery is increased, the gas is easy to break the pressure relief opening, thereby achieving the purpose of pressure relief inside the battery and improving the safety of the battery; and the pressure in the battery is released directionally, so that the problem of safety out of control of the peripheral battery caused by non-directional pressure release is avoided.
Description
Technical Field
The utility model relates to a new energy automobile power battery's technical field especially relates to a battery, battery processingequipment and battery module.
Background
With the increasing attention of people to the environment, new energy automobiles are rapidly developed. The development of the power battery, which is a core power component of the new energy automobile, will also influence the progress of the new energy automobile. Most of power soft package batteries for new energy automobiles adopt an aluminum plastic film or a steel plastic film as a battery shell, and the side edges of the soft package batteries and the sealing layers of the shells on the polar lug sides are sealed by heating, melting and sealing in a heat sealing mode. However, no safety design is made at the sealing position of the soft package battery, the internal pressure of the soft package battery is increased, the battery swells, and the internal pressure of the battery is released when the internal pressure is continuously increased to the sealing peeling strength of the sealing layer; however, the soft package battery bulges along with the increase of the internal pressure of the battery, and the positive and negative pole pieces at the edge of the battery are extruded, so that the positive and negative pole pieces in the soft package battery are short-circuited, the thermal runaway of a battery core is caused, the safety performance of the soft package battery is reduced, the pressure relief of the battery is not directional, the safety of other peripheral batteries is influenced, and the risk of causing the thermal runaway exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery has improved the security performance of battery, makes the directional release of the inside pressure of battery.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a battery, includes casing and encapsulation electric core in the casing, electric core length direction's both sides are equipped with utmost point ear, two respectively utmost point ear one-to-one stretches out respectively the both sides that the casing is relative, the casing in one side that utmost point ear stretches out has sealedly the seal area of casing, the casing in the pressure release mouth has still been seted up to one side of seal area, the pressure release mouth has relative both ends, the first end of pressure release mouth with the inside intercommunication of casing, the second end of pressure release mouth is sealed, just the second of pressure release mouth hold at least partially with the position overlap of utmost point ear.
Preferably, the sealing area has a welding strength gradually increasing from the pressure relief opening to the edge of the case.
Preferably, the welding area of the sealing area where the pressure relief opening is provided is 25% -75% of the area of the sealing area where the pressure relief opening is provided.
Preferably, the battery is a soft package battery, and the shape of the pressure relief opening is an inverted triangle or an arc.
Preferably, the battery is a square soft package battery.
Preferably, the two opposite ends of the shell are provided with tabs, and the sealing areas of the tabs are provided with the pressure relief openings.
Preferably, the pressure relief openings of the two sealing areas of the tab are arranged in alignment.
An object of the utility model is to provide a battery processingequipment, simple structure, the processingquality of the pressure release mouth of battery is high.
To achieve the purpose, the utility model adopts the following technical proposal:
the battery processing device is used for processing the battery and comprises an upper heat-sealing die head and a lower heat-sealing die head, wherein a heat-pressing groove is formed in the side surface of the upper heat-sealing die head, the depth of the heat-pressing groove is gradually reduced from one side of the upper heat-sealing die head to the other side of the upper heat-sealing die head, and one side, opposite to the heat-pressing groove, of the lower heat-sealing die head is a plane.
Preferably, the cross-sectional shape of the hot-pressing groove is an inverted triangle or a circular arc.
An object of the utility model is to provide a battery module can realize battery cell's directional pressure release, does not influence other batteries, has improved battery module's security performance.
To achieve the purpose, the utility model adopts the following technical proposal:
a battery module comprises a plurality of single batteries which are connected in series and/or in parallel, wherein the single batteries are the batteries.
The utility model has the advantages that:
the utility model provides a battery, the sealed area of its casing equipped with utmost point ear is equipped with the pressure release mouth, has both guaranteed the good performance that the battery is sealed, when guaranteeing again that inside atmospheric pressure of battery increases, gaseous easily breaks through the pressure release mouth to reach the purpose of the inside pressure release of battery, improved the security that the battery used; in addition, the second end of the pressure relief opening is at least partially overlapped with the position of the pole lug, so that the pressure in the battery is released directionally, and the problem of safety runaway of the peripheral battery caused by non-directional pressure relief is avoided.
The utility model provides a battery processing device, simple structure goes up and is equipped with the hot-pressing groove on the heat-seal die head, when going up heat-seal die head and heat-seal die head hot pressing down, forms the pressure release mouth with the sealed area that the hot-pressing groove corresponds, and makes the sealed area by the pressure release mouth crescent to the weld strength at casing edge, the battery sealing performance of processing is good, easily breaks through the pressure release mouth, and has simplified the processing step, the processingquality of the pressure release mouth of battery is high.
The utility model provides a battery module can realize battery cell's directional pressure release, does not influence other batteries, has improved battery module's security performance.
Drawings
Fig. 1 is a structural view of a first shape of a pressure relief vent of a battery according to an embodiment of the present invention;
fig. 2 is a structural diagram of a second shape of a pressure relief opening of a battery according to an embodiment of the present invention;
fig. 3 is a schematic view of a part of a battery processing apparatus provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an upper heat-sealing die head provided by the embodiment of the present invention.
In the figure:
1. a housing; 2. a tab; 3. a sealing zone; 4. a pressure relief port;
100. an upper heat-sealing die head; 101. hot pressing the groove; 200. and a lower heat seal die.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 and fig. 2, this embodiment provides a battery, including casing 1 and the electric core of encapsulation in casing 1, electric core length direction's both sides are equipped with utmost point ear 2 respectively, two utmost point ear 2 one-to-ones are stretched out casing 1 relative both sides respectively, casing 1 has sealed housing 1's seal zone 3 in the one side that utmost point ear 2 stretches out, casing 1 has still seted up pressure relief vent 4 in seal zone 3, pressure relief vent 4 has relative both ends, the first end and the inside intercommunication of casing 1 of pressure relief vent 4, the second end of pressure relief vent 4 is sealed, and the second end of pressure relief vent 4 overlaps with the position of utmost point ear 2 at least partially. The sealing area 3 of the shell 1, which is provided with the pole lugs 2, is provided with the pressure relief opening 4, so that the good sealing performance of the battery is ensured, and the pressure relief opening 4 is easily broken by gas when the internal pressure of the battery is increased, the purpose of relieving the internal pressure of the battery is achieved, and the use safety of the battery is improved; in addition, the second end of the pressure relief opening 4 is at least partially overlapped with the position of the pole lug 2, so that the pressure inside the battery is released directionally, and the problem of safety runaway of the peripheral battery caused by non-directional pressure relief is avoided.
In this embodiment, the sealing area 3 is gradually increased from the pressure relief opening 4 to the welding strength of the edge of the casing 1, so that the pressure relief opening 4 can be smoothly opened, the welding strength from the pressure relief opening 4 to the edge of the casing 1 is gradually increased, when the gas in the battery is less, the part with small welding strength can be flushed away first, then along with the accumulation of the gas, the impact force is also increased, the part with large welding strength can be flushed away, the efficiency of opening the pressure relief opening 4 is improved, the time of opening the pressure relief opening 4 is shortened, and the use safety of the battery is further improved.
In this embodiment, the welding area of the sealing area 3 of the setting pressure relief opening 4 is 25% -75% of the sealing area 3 area of the setting pressure relief opening 4, so that when the inside atmospheric pressure of the battery increases, the pressure relief opening 4 can be smoothly flushed, if the welding area of the sealing area 3 is less than 25%, the battery has the problem of leakage, if the welding area of the sealing area 3 is greater than 75%, the consistency that the pressure relief opening 4 is flushed is poor, the condition that the pressure relief opening 4 is not opened exists, and the use safety coefficient of the battery is reduced. Both ends of the shell 1 of the battery in the embodiment are provided with the pole lugs 2, and the two sealing areas 3 provided with the pole lugs 2 are provided with the pressure relief ports 4, so that the gas inside the battery is discharged directionally. Both ends all are equipped with pressure release mouth 4, have improved gas emission's efficiency, have further improved the security that the battery used. Preferably, the pressure relief ports 4 on the two sealing areas 3 where the tabs 2 are arranged are aligned, so that the pressure relief ports 4 at the two ends are flushed open with consistency.
In this embodiment, the battery is a pouch battery, preferably, the battery is a square pouch battery, and the shape of the pressure relief opening 4 is an inverted triangle or an arc, so that the opening of one end of the pressure relief opening 4 communicated with the inside of the housing 1 is larger, and the other end of the pressure relief opening is gradually smaller, so that the sealing area 3 has good sealing performance. In other embodiments, the pressure relief vent 4 may have other shapes, and is not limited herein.
As shown in fig. 3 and 4, the present embodiment also provides a battery processing apparatus for processing the above-described battery, the battery processing apparatus including an upper heat-seal die 100 and a lower heat-seal die 200, the side of the upper heat-seal die 100 being provided with a heat-pressing groove 101, the depth of the heat-pressing groove 101 being gradually reduced from one side of the upper heat-seal die 100 to the other (see fig. 4), and the side of the lower heat-seal die 200 opposite to the heat-pressing groove 101 being set to be flat. When battery processingequipment processed the battery, place heat-seal die head 200 down with the sealed area 3 of treating the butt fusion of battery, start heat-seal die head 100 and push down and just formed pressure release mouth 4 in sealed area 3 department, and make sealed area 3 by pressure release mouth 4 to the welding strength crescent at casing 1 edge, the battery sealing performance of processing is good, easily breaks pressure release mouth 4, and processing steps is simple, and the processing cost is low, the processingquality of the pressure release mouth 4 of battery is high.
In this embodiment, the cross-sectional shape of the hot-pressing groove 101 is a triangle or an arc, one side of the hot-pressing groove 101 penetrates one side of the upper heat-sealing die 100 so as to form the opening communicating with the inside of the case 1 through the pressure relief opening 4, the other side of the hot-pressing groove 101 extends toward the other side of the upper heat-sealing die 100, and the depth of the hot-pressing groove 101 becomes gradually shallower, and the other side of the hot-pressing groove 101 does not penetrate the other side of the upper heat-sealing die 100 so as to seal the battery. In other embodiments, the cross-sectional shape of the hot pressing groove 101 may be other shapes, and is not limited herein.
The embodiment also provides a battery module, which comprises a plurality of single batteries connected in series and/or in parallel, wherein the single batteries are the batteries provided by the embodiment.
In summary, the present embodiment has the above-mentioned excellent characteristics, so that the present embodiment can enhance the effect of the prior art in use and has practicability, and becomes a product with practical value.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a battery, includes casing (1) and encapsulation electric core in casing (1), electric core length direction's both sides are equipped with utmost point ear (2) respectively, two utmost point ear (2) one-to-one stretches out respectively casing (1) relative both sides, casing (1) in one side that utmost point ear (2) stretch out has sealedly sealed sealing area (3) of casing (1), a serial communication port, casing (1) in pressure release mouth (4) have still been seted up in sealing area (3), pressure release mouth (4) have relative both ends, the first end of pressure release mouth (4) with casing (1) inside intercommunication, the second end of pressure release mouth (4) is sealed, just the second end of pressure release mouth (4) at least part with the position of utmost point ear (2) overlaps.
2. The battery according to claim 1, wherein the sealing region (3) has a welding strength gradually increasing from the pressure relief vent (4) to the edge of the case (1).
3. The battery according to claim 1, wherein the sealing area (3) where the pressure relief vent (4) is provided has a welding area of 25-75% of the area of the sealing area (3) where the pressure relief vent (4) is provided.
4. The battery according to claim 1, wherein the battery is a soft package battery, and the shape of the pressure relief opening (4) is an inverted triangle or an arc.
5. The battery of claim 1, wherein the battery is a square pouch battery.
6. The battery according to claim 5, wherein the opposite ends of the case (1) are provided with tabs (2), and the two sealing areas (3) provided with the tabs (2) are provided with the pressure relief ports (4).
7. The cell according to claim 6, characterized in that the pressure relief vents (4) of the two sealing zones (3) where the tabs (2) are arranged in alignment.
8. A battery processing apparatus for processing the battery according to any one of claims 1 to 7, comprising an upper heat-sealing die (100) and a lower heat-sealing die (200), wherein the upper heat-sealing die (100) is provided with a heat-pressing groove (101) on a side surface thereof, the depth of the heat-pressing groove (101) is gradually reduced from one side of the upper heat-sealing die (100) to the other side thereof, and the side of the lower heat-sealing die (200) opposite to the heat-pressing groove (101) is provided as a plane.
9. The battery processing apparatus according to claim 8, wherein the cross-sectional shape of the hot-pressed groove (101) is an inverted triangle or a circular arc.
10. A battery module comprising a plurality of single batteries connected in series and/or in parallel, wherein the single batteries are the batteries of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021044744.0U CN212485486U (en) | 2020-06-09 | 2020-06-09 | Battery, battery processing device and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021044744.0U CN212485486U (en) | 2020-06-09 | 2020-06-09 | Battery, battery processing device and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212485486U true CN212485486U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021044744.0U Active CN212485486U (en) | 2020-06-09 | 2020-06-09 | Battery, battery processing device and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212485486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013545A (en) * | 2021-03-01 | 2021-06-22 | 苏州清陶新能源科技有限公司 | Laminate polymer battery and battery module |
-
2020
- 2020-06-09 CN CN202021044744.0U patent/CN212485486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013545A (en) * | 2021-03-01 | 2021-06-22 | 苏州清陶新能源科技有限公司 | Laminate polymer battery and battery module |
| CN113013545B (en) * | 2021-03-01 | 2023-10-27 | 苏州清陶新能源科技有限公司 | Soft package battery and battery module |
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