CN214542315U - Novel structure soft package long-life battery - Google Patents
Novel structure soft package long-life battery Download PDFInfo
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- CN214542315U CN214542315U CN202120408245.3U CN202120408245U CN214542315U CN 214542315 U CN214542315 U CN 214542315U CN 202120408245 U CN202120408245 U CN 202120408245U CN 214542315 U CN214542315 U CN 214542315U
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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
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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
- 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
Abstract
The utility model provides a novel soft packet of long-life battery of structure, including naked electric core, gluey frame, anodal ear, negative pole ear, anodal utmost point ear trench, negative pole utmost point ear trench, plastic-aluminum membrane hole, plastic-aluminum membrane gasbag and gas-liquid hole, naked electric core outer fringe face is equipped with anodal ear and negative pole ear respectively, and anodal ear and negative pole ear are connected with naked electric core ultrasonic welding respectively. The utility model discloses an use at naked electric core periphery and glue the frame, through the mode that splices the anchor, make naked electric core form the naked electric core frame body of certain rigidity, protect electric core pole piece structure for the battery outward appearance roughness that the preparation was come out is high, electric core structural dimension relatively stable all around, restriction thermal expansion displacement, long-term circulation back accumulative deformation volume is little, improve the edge and separate the lithium condition, reduce the security and the cyclicity ability that hot bulging and edge were separated lithium and are bloated and promote whole product appear.
Description
Technical Field
The utility model relates to a lithium ion battery electricity core structure and process optimization technical field specifically are a novel structure soft packet of long-life battery.
Background
The lithium ion battery energy storage is a relatively mature energy storage mode at present, and with the large application of the lithium ion battery in the energy storage industry, the market puts new and higher requirements on high safety, long service life and low cost of the lithium ion battery.
The traditional soft package battery assembly mode is that after positive and negative pole pieces and a diaphragm are laminated into a naked battery core, an adhesive tape is pasted for fixation, welding of positive and negative lugs is carried out, then the whole battery core is placed into a punched aluminum-plastic film pit for top sealing and side sealing, the battery core is assembled, and then the battery core is baked, injected with liquid, formed, subjected to capacity grading and other subsequent process steps. The manufactured finished product battery cell binds the positive and negative pole pieces through the packaged aluminum-plastic film, and the aluminum-plastic film has small thickness, weak rigidity, easy deformation under stress and small constraint force on the battery cell main body. Along with the long-term cyclic use and the influence of complex use environment stress of the battery, the inevitable phenomenon that the battery expands due to the increase of internal pressure of the battery, so that the separation change of the distance between the positive and negative pole pieces occurs, the migration distance of lithium ions between the original positive and negative pole pieces is increased, the polarization of the battery is increased, lithium precipitation at the peripheral edge can occur in serious cases, a dead lithium accumulation area is formed, the phenomenon of bulging at the edge of the battery cell occurs, and the long-term cyclic service life and the safety performance of the battery are directly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be not enough to prior art exists, the utility model aims at providing a novel soft packet of long-life battery of structure to solve the problem that proposes in the above-mentioned background, the utility model discloses an use at naked electric core periphery and glue the frame, through the mode that splices the anchor, make naked electric core form the naked electric core frame body of certain rigidity, protect electric core pole piece structure, make the battery outward appearance roughness of making out high, it is relatively stable to possess electric core structural dimension all around, restriction thermal expansion displacement, long-term circulation back cumulative deformation volume is little, improve the edge and analyse the lithium condition, reduce the security that hot drum and edge are analysed lithium and swell and promote whole product and the advantage of cyclicity ability, solved the problem among the prior art.
In order to achieve the above purpose, the present invention is realized by the following technical solution: in order to achieve the above purpose, the present invention is realized by the following technical solution: a soft package long-life battery with a novel structure comprises a naked battery core, a rubber frame, a positive electrode lug, a negative electrode lug, a positive electrode lug groove position, a negative electrode lug groove position, an aluminum-plastic film pit, an aluminum-plastic film air bag and a gas-liquid hole, wherein,
the outer edge surface of the bare cell is respectively provided with a positive electrode lug and a negative electrode lug, and the positive electrode lug and the negative electrode lug are respectively connected with the bare cell in an ultrasonic welding way;
the positive electrode lug penetrates through and protrudes out of the positive electrode lug slot position, and the negative electrode lug penetrates through and protrudes out of the negative electrode lug slot position;
the positive pole lug groove and the negative pole lug groove are respectively and fixedly arranged on the outer edge surface of the rubber frame;
the rubber frame is fixedly arranged on the periphery of the outer part of the naked electric core through a PI adhesive tape, and glue is coated on the joint formed by the combination of the rubber frame and the naked electric core in a sealing manner;
the aluminum-plastic film pit is positioned vertically below the rubber frame and used for wrapping the bare cell and carrying out top sealing and side sealing treatment on the bare cell;
the aluminum-plastic film air bag is fixedly arranged on the other outer edge surface of the aluminum-plastic film pit opposite to the rubber frame, and the positive lug is close to one side of the aluminum-plastic film air bag;
the gas-liquid hole is fixedly arranged at two side positions of the outer edge face of the rubber frame, and the PI adhesive tape is arranged in a staggered mode to improve the liquid absorption capacity and ensure that the porous structure of the internal diaphragm of the battery can quickly wet and absorb electrolyte when liquid is injected.
As right the utility model discloses in the improvement of a novel structure soft-packaged long-life battery, naked electric core is lamination electricity core, naked electric core outer fringe face unilateral goes out anodal ear and negative pole ear or two sides play anodal ear and negative pole ear of naked electric core outer fringe face.
As right the utility model discloses in the improvement of a novel structure soft packet of long-life battery, glue the frame and adopt PP or PTFE material, its wall thickness 0.4mm ~ 1.2 mm.
As right the utility model discloses in the improvement of a novel structure soft packet of long-life battery, the plastic-aluminum membrane hole is in what plastic-aluminum membrane air bag outer fringe face formed dashes the hole and dashes the hole for single hole or two holes dash hole or the hole is dashed to the pit of depth.
As right the utility model discloses in a novel structure soft packet of long-life battery's improvement, the PI sticky tape is fixed gluey frame and naked electric core respectively with the mode of pasting is twined to U type.
As right the utility model discloses in the improvement of a novel structure soft packet of long-life battery, anodal ear is aluminium utmost point ear, the negative pole ear is copper nickel plating utmost point ear.
As right the utility model discloses in the improvement of a novel structure soft packet of long-life battery, the gas-liquid hole is in the unilateral distribution quantity of gluing the frame is 4 ~ 6.
As right the utility model discloses in a novel structure soft packet of long-life battery's improvement, naked electric core, gluey frame, anodal ear, negative pole ear, anodal utmost point ear trench, negative pole utmost point ear trench, plastic-aluminum membrane hole, plastic-aluminum membrane air bag and gas-liquid hole are the integral type installation.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a novel laminate polymer battery structure, through using gluey frame at above-mentioned naked electric core periphery, through the mode that splices the anchor, make naked electric core form the naked electric core frame body of certain rigidity, protect electric core pole piece structure, make the battery outward appearance roughness of making out high, simultaneously through the frame that splices the anchor, retrain all around, thereby it resists electric core thermal expansion deformation to be distinguished from prior art possesses, electric core structural dimension relatively stable all around, restriction thermal expansion displacement, long-term circulation back cumulative deformation is little, improve the marginal lithium condition of separating, the advantage that hot bulging and marginal lithium of separating bloated appears in the reduction, promote the security and the cycling performance of whole product.
Drawings
The disclosure of the present invention is explained with reference to the drawings. It is to be understood that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention, for which reference should be made to the appended drawings in which like elements are designated by like reference numerals. Wherein:
fig. 1 is an exploded view of the overall structure of an embodiment of the present invention;
fig. 2 is a partial schematic view of an embodiment of the present invention.
The figures are labeled as follows: 1-naked battery cell, 2-glue frame, 3-positive pole lug, 4-negative pole lug, 5-positive pole lug slot, 6-negative pole lug slot, 7-aluminum plastic film pit, 8-aluminum plastic film air bag, 9-gas-liquid hole and 10-PI adhesive tape.
Detailed Description
It is easily understood that, according to the technical solution of the present invention, a plurality of alternative structural modes and implementation modes can be proposed by those skilled in the art without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.
As shown in fig. 1-2, as an embodiment of the present invention, the present invention provides a technical solution: a soft package long-life battery with a novel structure comprises a naked battery core 1, a rubber frame 2, a positive electrode tab 3, a negative electrode tab 4, a positive electrode tab slot 5, a negative electrode tab slot 6, an aluminum plastic film pit 7, an aluminum plastic film air bag 8 and a gas-liquid hole 9, wherein,
the outer edge surface of the naked electric core 1 is respectively provided with a positive electrode tab 3 and a negative electrode tab 4, and the positive electrode tab 3 and the negative electrode tab 4 are respectively connected with the naked electric core 1 through ultrasonic welding;
the positive electrode tab 3 penetrates through and protrudes out of the positive electrode tab slot position 5, and the negative electrode tab 4 penetrates through and protrudes out of the negative electrode tab slot position 6;
the positive pole lug groove position 5 and the negative pole lug groove position 6 are respectively fixedly arranged on the outer edge surface of the rubber frame 2, the arranging position of the positive pole lug groove position 5 corresponds to the positive pole lugs 3 one by one, and the arranging position of the negative pole lug groove position 6 corresponds to the negative pole lugs 4 one by one;
the glue frame 2 is fixedly installed around the outside of the bare cell 1 through the PI adhesive tape 10, the glue frame 2 is integrated with the bare cell 1, the glue frame 2 is tightly attached to the bare cell 1, the glue frame 2 is combined with the bare cell 1, and the airtight joint is coated with glue which has the performances of insulation, high temperature resistance, flame retardance, electrolyte resistance and the like;
the aluminum-plastic film pit 7 is positioned vertically below the rubber frame 2 and used for wrapping the naked electric core 1 and carrying out top sealing and side sealing treatment on the naked electric core;
the aluminum plastic film air bag 8 is fixedly arranged on the other outer edge surface of the aluminum plastic film pit 7 opposite to the rubber frame 2, and the positive lug 3 is close to one side of the aluminum plastic film air bag 8;
the gas-liquid hole 9 is fixedly arranged at two side positions of the outer edge surface of the rubber frame 2, and is staggered with the PI adhesive tape 10, so that the liquid absorption capacity is improved, the porous structure of the internal diaphragm of the battery can quickly wet and absorb electrolyte when liquid injection is guaranteed, and meanwhile, the gas-liquid hole 9 is used as an exhaust auxiliary channel of the battery.
As an embodiment of the utility model, naked electric core 1 is the lamination electricity core, and 1 unilateral of naked electric core goes out anodal ear 3 and negative pole ear 4 or two sides of naked electric core 1 go out anodal ear 3 and negative pole ear 4.
As an embodiment of the utility model, the rubber frame 2 is made of PP or PTFE material, and the wall thickness is 0.4 mm-1.2 mm.
As an embodiment of the utility model, the aluminum-plastic film pit 7 is a single pit or a double pit or a deep and shallow pit on the outer edge surface of the aluminum-plastic film airbag 8.
As an embodiment of the present invention, the PI adhesive tape 10 is fixed with the adhesive frame 2 and the bare cell 1 respectively by a U-shaped winding and pasting method.
As an embodiment of the present invention, the positive electrode tab 3 is an aluminum tab, and the negative electrode tab 4 is a copper nickel-plated tab.
As an embodiment of the utility model, the gas-liquid hole 9 is 4 ~ 6 in the unilateral distribution quantity of gluing frame 2.
As an embodiment of the utility model, naked electric core 1, glue frame 2, anodal ear 3, negative pole ear 4, anodal utmost point ear trench 5, negative pole utmost point ear trench 6, plastic-aluminum membrane hole 7, plastic-aluminum membrane sack 8 and gas-liquid hole 9 are the integral type installation.
The utility model discloses an in the embodiment, the utility model discloses in the equipment, the staff carries out ultrasonic welding with the utmost point ear of adjusting the negative pole after becoming naked electric core 1 with positive and negative pole piece and diaphragm lamination, again in naked electric core 1 sheathe in the integral type all around and glue frame 2, wear out positive negative pole ear and utmost point ear glue from gluing 2 top utmost point ear trench of frame, glue frame 2 and naked electric core 1 within a definite time through PI sticky tape 10 pre-fixity, glue is glued the water and is fixed again, and simultaneously with this, the glue of chooseing for use needs to possess insulating, high temperature resistant, it is fire-retardant, electrolyte resistance etc. performance, will put into the aluminium-plastic film 7 that has been washed through gluing naked electric core 1 that frame 2 is fixed, carry out top seal and side seal, accomplish subsequent electric core equipment, be close to aluminium-plastic film gasbag bag 8 limit one side with the positive ear 3 of naked electric core 1, the follow-up toasts, annotate the liquid, become, the process steps such as partial capacity.
The utility model discloses an in the embodiment, the utility model discloses an use frame 2 at naked electric core 1 periphery, through the mode that splices the anchor, make naked electric core 1 of electric core 1 formation certain rigidity 1 frame body, protect electric core pole piece structure, make the battery outward appearance roughness of making out high, it is relatively stable to possess electric core structural dimension all around, restriction thermal expansion displacement, long-term circulation back accumulation deflection is little, improve the edge and analyse the lithium condition, reduce the security and the advantage of cycling performance that hot bulging and edge were analysed lithium and expand and promote whole product appear.
The technical scope of the present invention is not limited to the content in the above description, and those skilled in the art can make various modifications and alterations to the above embodiments without departing from the technical spirit of the present invention, and these modifications and alterations should fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a soft packet of long-life battery of novel structure which characterized in that: comprises a naked battery cell, a rubber frame, a positive electrode lug, a negative electrode lug, a positive electrode lug slot position, a negative electrode lug slot position, an aluminum-plastic film pit, an aluminum-plastic film air bag and a gas-liquid hole, wherein,
the outer edge surface of the bare cell is respectively provided with a positive electrode lug and a negative electrode lug, and the positive electrode lug and the negative electrode lug are respectively connected with the bare cell in an ultrasonic welding way;
the positive electrode lug penetrates through and protrudes out of the positive electrode lug slot position, and the negative electrode lug penetrates through and protrudes out of the negative electrode lug slot position;
the positive pole lug groove and the negative pole lug groove are respectively and fixedly arranged on the outer edge surface of the rubber frame;
the rubber frame is fixedly arranged on the periphery of the outer part of the naked electric core through a PI adhesive tape, and glue is coated on the joint formed by the combination of the rubber frame and the naked electric core in a sealing manner;
the aluminum-plastic film pit is positioned vertically below the rubber frame and used for wrapping the bare cell and carrying out top sealing and side sealing treatment on the bare cell;
the aluminum-plastic film air bag is fixedly arranged on the other outer edge surface of the aluminum-plastic film pit opposite to the rubber frame, and the positive lug is close to one side of the aluminum-plastic film air bag;
the gas-liquid hole is fixedly arranged at two side positions of the outer edge face of the rubber frame, and the PI adhesive tape is arranged in a staggered mode to improve the liquid absorption capacity and ensure that the porous structure of the internal diaphragm of the battery can quickly wet and absorb electrolyte when liquid is injected.
2. The novel structure soft package long-life battery of claim 1, characterized in that: the naked electric core is the lamination electricity core, positive ear and negative pole ear are gone out to naked electric core outer fringe face unilateral, or
And positive lugs and negative lugs are arranged on the outer edge surface of the bare cell on two sides.
3. The novel structure soft package long-life battery of claim 1, characterized in that: the rubber frame is made of PP or PTFE material, and the wall thickness of the rubber frame is 0.4 mm-1.2 mm.
4. The novel structure soft package long-life battery of claim 1, characterized in that: the punching pit formed by the aluminum-plastic film pit on the outer edge surface of the aluminum-plastic film air bag is a single pit punching pit, or
Double pits are punched, or
And (5) deep and shallow pit punching.
5. The novel structure soft package long-life battery of claim 1, characterized in that: the PI adhesive tape is used for respectively fixing the adhesive frame and the bare cell in a U-shaped winding and adhering mode.
6. The novel structure soft package long-life battery of claim 1, characterized in that: the positive electrode lug is an aluminum lug, and the negative electrode lug is a copper nickel-plated lug.
7. The novel structure soft package long-life battery of claim 1, characterized in that: the number of the gas-liquid holes is 4-6 on one side of the rubber frame.
8. The novel structure soft package long-life battery of claim 1, characterized in that: naked electric core, gluey frame, anodal ear, negative pole ear, anodal utmost point ear trench, negative pole utmost point ear trench, plastic-aluminum membrane hole, plastic-aluminum membrane gasbag and gas-liquid hole are the integral type installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120408245.3U CN214542315U (en) | 2021-02-24 | 2021-02-24 | Novel structure soft package long-life battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120408245.3U CN214542315U (en) | 2021-02-24 | 2021-02-24 | Novel structure soft package long-life battery |
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| Publication Number | Publication Date |
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| CN214542315U true CN214542315U (en) | 2021-10-29 |
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| CN202120408245.3U Active CN214542315U (en) | 2021-02-24 | 2021-02-24 | Novel structure soft package long-life battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115207554A (en) * | 2022-09-15 | 2022-10-18 | 广东奥德迈新能源有限责任公司 | Soft packet of lithium cell of ear heat seal mode |
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2021
- 2021-02-24 CN CN202120408245.3U patent/CN214542315U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115207554A (en) * | 2022-09-15 | 2022-10-18 | 广东奥德迈新能源有限责任公司 | Soft packet of lithium cell of ear heat seal mode |
| CN115207554B (en) * | 2022-09-15 | 2022-12-27 | 广东奥德迈新能源有限责任公司 | Soft packet of lithium cell of ear heat seal mode |
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