CN112151870A - Packaging process of ultrathin soft package battery - Google Patents
Packaging process of ultrathin soft package battery Download PDFInfo
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- CN112151870A CN112151870A CN202010993493.9A CN202010993493A CN112151870A CN 112151870 A CN112151870 A CN 112151870A CN 202010993493 A CN202010993493 A CN 202010993493A CN 112151870 A CN112151870 A CN 112151870A
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- battery
- package battery
- soft package
- soft
- packaging process
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a packaging process of an ultrathin soft package battery. The packaging process of the ultrathin soft package battery comprises the following steps: laminate polymer battery outsourcing plastic-aluminum membrane, the battery core, the stainless steel iron strip, the spacing draw-in groove in utmost point ear position, the pressure is pressed from both sides, the adhesive tape, encapsulation heating strip and laminate polymer battery body, through battery core hole position of punching press on the laminate polymer battery body, install and fix the battery core, battery core and laminate polymer battery body parcel have one deck laminate polymer battery outsourcing plastic-aluminum membrane, thickness and laminate polymer battery body top side thickness drop through square frame, top side seal equipment heats the encapsulation through encapsulation heating strip to the laminate polymer battery body in the top banding direction of battery utmost point ear one side, overcome the not enough of fund and human input, easy operation is reasonable, quick convenient ultra-thin battery top seal, thereby the side seal encapsulation technology is fine has solved conventional encapsulation inefficiency, it is crooked to encapsulate easily, the inaccurate problem of counterpointing.
Description
Technical Field
The invention belongs to the technical field of soft package battery packaging, and particularly relates to a packaging process of an ultrathin soft package battery.
Background
The lithium ion battery is a new generation battery with higher scientific and technological content, wide application and wide development prospect in the world at present. Lithium ion batteries can be classified into liquid lithium ion batteries and polymer lithium ion batteries according to the state of an electrolyte. The liquid lithium ion battery adopts liquid electrolyte, and is usually packaged by using a metal shell or an aluminum plastic film, and the metal shell packaging has the defects of poor plasticity, difficulty in light weight, high cost and the like. The liquid soft package lithium ion battery is packaged by the aluminum-plastic composite film, and has the advantages of light weight, simple process, flexible and convenient appearance design, low cost and the like, and the soft package lithium ion battery is only coated with a polymer shell. Structurally, the aluminum-plastic film is adopted for packaging, and the soft package battery can only blow and crack at most under the condition of potential safety hazard.
The existing general packaging technology in the soft package lithium battery industry can be used for packaging the soft package lithium battery with the battery thickness of more than 2.0mm quickly, effectively, reliably and firmly, and has good packaging strength and excellent sealing property; however, when the soft package battery with the packaging thickness below 2.0mm is packaged, the difference between the thickness of the main body part of the battery and the thickness of the top side edge is not obvious, and the battery cannot be clamped well according to the difference between the thicknesses of the main body of the battery during packaging, so that the defect that the battery cannot be packaged well, quickly and effectively is caused.
Disclosure of Invention
The invention aims to: in order to solve the problems, the packaging process of the ultrathin soft package battery is provided.
The technical scheme adopted by the invention is as follows: the packaging process of the ultrathin soft package battery comprises the following structures: the laminate polymer battery outsourcing plastic-aluminum membrane, battery core, stainless steel iron strip, the spacing draw-in groove in utmost point ear position, pressure clamp, adhesive tape, encapsulation strip and laminate polymer battery body of heating.
In a preferred embodiment, the packaging process of the ultrathin soft package battery comprises the following steps:
s1, wrapping a layer of soft-package battery outer aluminum-plastic film at the outer end of the soft-package battery body, then stamping the body position of the soft-package battery body through a special stamping die, and forming a pit for placing a battery core after stamping;
s2, preparing a plurality of soft-package battery outer-wrapping aluminum-plastic films, and then cutting each soft-package battery outer-wrapping aluminum-plastic film to the size which is the same as the pit position length, width and R angle position of the battery core in length and width through a special cutting device;
s3: the battery core and the soft package battery body are wrapped by a plurality of soft package battery outer wrapping aluminum plastic films, and then a fixed limiting clamp can be welded and manufactured according to the size of the soft package battery body which is cut and wrapped into the battery core by the soft package battery outer wrapping aluminum plastic films;
s4: preparing a plurality of stainless steel strips with the thickness of 5-8 mm and the width of 10mm according to the size of a soft package battery body wrapped in a battery core, and welding the plurality of stainless steel strips into a square frame through a welding device to form a fixed limiting clamp;
s5: two groups of lug position limiting clamping grooves are additionally arranged on a stainless steel strip in the direction of one side of a battery lug of a soft package battery body, the battery lug on the soft package battery body is clamped into the lug position limiting clamping grooves, and the battery lug is fixed through the lug position limiting clamping grooves;
s6: preparing a pressing clamp, then fixedly installing the pressing clamp in the bottom direction of the soft package battery body, and fixing and clamping the soft package battery body through the pressing clamp;
s7: manufacturing a packaging heating strip which is suitable for the size of the soft package battery body and the size of the fixed limiting clamp according to the size of the soft package battery body and the size of the fixed limiting clamp;
s8: the packaging heating strip is arranged on the top side sealing device, the packaging heating strip is heated through the top side sealing device, the top side sealing device heats the soft package battery body through the packaging heating strip in the top sealing edge direction of one side of the battery tab, and therefore the whole packaging of the ultrathin soft package battery can be achieved.
In a preferred embodiment, in step S1, the pouch battery body used in the packaging process is a pouch battery with a thickness of 1.04mm, a width of 30.0mm, a height of 53.0mm, and a capacity of 90 mAh.
In a preferred embodiment, in step S6, a piece of adhesive paper such as teflon needs to be prepared, and then the two side pressing heads on the pressing clamp are wrapped with the piece of adhesive paper such as teflon to avoid the soft package battery body being pinched.
In a preferred embodiment, in step S5, the width of the through hole opened in the tab position limiting slot is the same as the width of the battery tab, and the length of the battery tab is greater than the length of the tab position limiting slot.
In a preferred embodiment, the heating temperature of the top sealing device used in step S8 is about 140 degrees.
In a preferred embodiment, the pit punched in step S1 is matched with the battery cell having the same length and width as the length, width and R-angle position of the battery cell.
In a preferred embodiment, the width of the square box in step S4 is preferably just laterally placed toward the soft package battery body, and the top sealed edge on the side with the battery tab is left at a width of about 10mm from the top sealed edge of the soft package battery body.
In a preferred embodiment, the width of the pressing head of the pressing clamp used in the step S6 is greater than or equal to the width of the soft package battery body.
In a preferred embodiment, in step S5, a film is disposed on a battery tab connected to a battery core.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the battery core pit position is punched on the soft package battery body, the battery core pit position is matched with the size of the battery core, the battery core is convenient to mount and fix, meanwhile, the battery core and the soft package battery body are wrapped with a layer of soft package battery outer wrapping aluminum-plastic film, the aluminum-plastic film has larger deformation space, is not easy to break, and the safety and the stability of the device are improved.
2. According to the invention, through the difference between the thickness of the square frame and the thickness of the top side of the soft package battery body, clamping is conveniently carried out during packaging, the battery tab on the soft package battery body is clamped into the tab position limiting clamping groove, the tab position limiting clamping groove is used for fixing the battery tab, the soft package battery body is fixed and clamped by the pressing clamp, the two side pressing heads on the pressing clamp are wrapped by the Teflon adhesive paper on the pressing clamp, the soft package battery body is prevented from being damaged by clamping, the stability and the safety during packaging are improved, and the problems of low packaging efficiency, easiness in packaging deflection and inaccurate alignment of the packaging of a battery main body in the conventional packaging technology are solved.
3. According to the invention, the packaging heating strip is manufactured according to the size of the soft package battery body and the size of the fixing and limiting clamp, the packaging heating strip is heated through the top side sealing equipment, and the top side sealing equipment heats and packages the soft package battery body through the packaging heating strip in the top edge sealing direction of one side of the battery tab, so that the packaging accuracy is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The packaging process of the ultrathin soft package battery comprises the following steps: the laminate polymer battery outsourcing plastic-aluminum membrane, battery core, stainless steel iron strip, the spacing draw-in groove in utmost point ear position, pressure clamp, adhesive tape, encapsulation strip and laminate polymer battery body of heating.
The packaging process of the ultrathin soft package battery comprises the following steps:
s1, wrapping a layer of soft package battery outer wrapping aluminum plastic film at the outer end of the soft package battery body, then stamping the body position of the soft package battery through a special stamping die, and forming a pit for placing a battery core after stamping, wherein in the step S1, the model of the soft package battery body used by the packaging process is the soft package battery with the thickness of 1.04mm, the width of 30.0mm, the height of 53.0mm and the capacity of 90mAh, and the pit position of the battery core is matched with the length, the width and the R angle position of the battery core in the same length and width dimension;
s2, preparing a plurality of soft-package battery outer-wrapping aluminum-plastic films, and then cutting each soft-package battery outer-wrapping aluminum-plastic film to the size which is the same as the pit position length, width and R angle position of the battery core in length and width through a special cutting device;
s3: the battery core and the soft package battery body are wrapped by a plurality of soft package battery outer wrapping aluminum plastic films, and then a fixed limiting clamp can be welded and manufactured according to the size of the soft package battery body which is cut and wrapped into the battery core by the soft package battery outer wrapping aluminum plastic films;
s4: preparing a plurality of stainless steel strips with the thickness of 5-8 mm and the width of 10mm according to the size of a soft package battery body wrapped in a battery core, welding the plurality of stainless steel strips into a square frame through a welding device, and forming a fixed limiting clamp, wherein in the step S4, the width of the frame is suitable for placing the soft package battery body in a right side face direction, and the top edge sealing direction of one side of a lug of a battery is kept about 10mm wide away from the top edge sealing direction of the soft package battery body;
s5: two groups of lug position limiting clamping grooves are additionally arranged on a stainless steel strip in the direction of one side of a battery lug of a soft package battery body, the battery lug on the soft package battery body is clamped into the lug position limiting clamping grooves, and the battery lug is fixed through the lug position limiting clamping grooves, in step S5, the width of a through hole formed in the lug position limiting clamping grooves is the same as the width of the battery lug, the length of the battery lug is larger than that of the lug position limiting clamping grooves, a film is arranged on the battery lug, and the battery lug is connected with a battery core;
s6: preparing a pressing clamp, fixedly installing the pressing clamp in the bottom direction of the soft package battery body, fixing and clamping the soft package battery body through the pressing clamp, preparing Teflon adhesive paper in step S6, wrapping pressure heads on two sides of the pressing clamp with the Teflon adhesive paper to avoid damaging the soft package battery body by clamping, wherein the width of the pressure head of the pressing clamp is more than or equal to that of the soft package battery body;
s7: manufacturing a packaging heating strip which is suitable for the size of the soft package battery body and the size of the fixed limiting clamp according to the size of the soft package battery body and the size of the fixed limiting clamp;
s8: the packaging heating strip is arranged on the top side sealing device, the packaging heating strip is heated through the top side sealing device, the top side sealing device heats the soft package battery body through the packaging heating strip in the top sealing edge direction of one side of a battery tab, the whole packaging of the ultrathin soft package battery can be realized, and the heating temperature of the top side sealing device used in the step S8 is about 140 degrees.
After the technical scheme is adopted, the packaging process of the ultrathin soft package battery is characterized in that a battery core pit position is punched on a soft package battery body, the pit position of the battery core is matched with the length, width and R-angle position of the battery core in the same length and width dimensions, the battery core is convenient to mount and fix, a layer of soft package battery outer aluminum-plastic film wraps the battery core and the soft package battery body, the aluminum-plastic film has larger deformation space and is not easy to break, the safety of the device is improved, a plurality of stainless steel strips with the thickness of 5-8 mm and the width of 10mm can be welded into a square frame, the soft package battery body is placed into the square frame from the side surface, the top sealing edge direction of one side of a battery tab is spaced from the top sealing edge of the soft package battery body by 10mm, and the thickness of the square frame is different from the thickness of the top side edge of the soft package battery body, conveniently carry out the screens during the encapsulation, go into the spacing draw-in groove in utmost point ear position with the battery utmost point ear card on the laminate polymer battery body, the spacing draw-in groove in utmost point ear position is fixed battery utmost point ear, press the clamp to fix and press from both sides the laminate polymer battery body steadily, the both sides pressure head that the teflon on the pressure clamp was pressed from both sides is wrapped up, avoid pressing from both sides the laminate polymer battery body that hinders, stability and security when having improved the encapsulation, produce the encapsulation heating strip according to laminate polymer battery body size and fixed spacing anchor clamps size, heat the encapsulation heating strip through top side seal equipment, top side seal equipment heats the laminate polymer battery body through the encapsulation heating strip in the top banding direction of battery utmost point ear one side, alright realized heating the holistic encapsulation of ultra-thin laminate polymer battery.
Therefore, the packaging process of the ultrathin soft package battery overcomes the defects of capital and manpower investment on the original basis, and is simple, reasonable, rapid and convenient to operate; therefore, the problems that the conventional packaging technology is low in packaging efficiency and prone to packaging deflection, and the battery body is inaccurate in packaging alignment are well solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The packaging process of the ultrathin soft package battery is characterized by comprising the following steps of: the packaging process of the ultrathin soft package battery comprises the following steps: the laminate polymer battery outsourcing plastic-aluminum membrane, battery core, stainless steel iron strip, the spacing draw-in groove in utmost point ear position, pressure clamp, adhesive tape, encapsulation strip and laminate polymer battery body of heating.
2. The packaging process of the ultrathin soft package battery as claimed in claim 1, characterized in that: the packaging process of the ultrathin soft package battery comprises the following steps:
s1, wrapping a layer of soft-package battery outer aluminum-plastic film at the outer end of the soft-package battery body, then stamping the body position of the soft-package battery body through a special stamping die, and forming a pit for placing a battery core after stamping;
s2, preparing a plurality of soft-package battery outer-wrapping aluminum-plastic films, and then cutting each soft-package battery outer-wrapping aluminum-plastic film to the size which is the same as the pit position length, width and R angle position of the battery core in length and width through a special cutting device;
s3, wrapping the battery core and the soft-package battery body by a plurality of soft-package battery outer-wrapping aluminum-plastic films, and then welding and manufacturing a fixed limiting clamp according to the size of the soft-package battery body which is cut and wrapped in the battery core by the soft-package battery outer-wrapping aluminum-plastic films;
s4: preparing a plurality of stainless steel strips with the thickness of 5-8 mm and the width of 10mm according to the size of a soft package battery body wrapped in a battery core, and welding the plurality of stainless steel strips into a square frame through a welding device to form a fixed limiting clamp;
s5: two groups of lug position limiting clamping grooves are additionally arranged on a stainless steel strip in the direction of one side of a battery lug of a soft package battery body, the battery lug on the soft package battery body is clamped into the lug position limiting clamping grooves, and the battery lug is fixed through the lug position limiting clamping grooves;
s6: preparing a pressing clamp, then fixedly installing the pressing clamp in the bottom direction of the soft package battery body, and fixing and clamping the soft package battery body through the pressing clamp;
s7: manufacturing a packaging heating strip which is suitable for the size of the soft package battery body and the size of the fixed limiting clamp according to the size of the soft package battery body and the size of the fixed limiting clamp;
s8: the packaging heating strip is arranged on the top side sealing device, the packaging heating strip is heated through the top side sealing device, the top side sealing device heats the soft package battery body through the packaging heating strip in the top sealing edge direction of one side of the battery tab, and therefore the whole packaging of the ultrathin soft package battery can be achieved.
3. The packaging process of the ultrathin soft package battery as claimed in claim 2, characterized in that: in step S1, the type of the pouch battery body used in the packaging process is a pouch battery with a thickness of 1.04mm, a width of 30.0mm, a height of 53.0mm, and a capacity of 90 mAh.
4. The packaging process of the ultrathin soft package battery as claimed in claim 2, characterized in that: in step S6, it is necessary to prepare a teflon-like adhesive tape, and then wrap the two side pressing heads on the pressing clamp with the teflon-like adhesive tape, so as to avoid damaging the soft package battery body by the clamping.
5. The packaging process of the ultrathin soft package battery as claimed in claim 2, characterized in that: in the step S5, the width of the through hole opened in the tab position limiting slot is the same as the width of the battery tab, and the length of the battery tab is greater than the length of the tab position limiting slot.
6. The packaging process of the ultrathin soft package battery as claimed in claim 2, characterized in that: the heating temperature of the top sealing device used in the step S8 is about 140 degrees.
7. The packaging process of the ultrathin soft package battery as claimed in claim 2, characterized in that: in the step S1, the pit position punched into the battery cell matches with the same length and width dimensions of the battery cell in length, width and R-angle position.
8. The packaging process of the ultrathin soft package battery as claimed in claim 2, characterized in that: and in the step S4, the width of the square frame in the square frame is preferably just that the side face of the square frame is placed into the soft package battery body, and the width of the top edge sealing direction at one side of the lug of the battery is about 10mm away from the top edge sealing of the soft package battery body.
9. The packaging process of the ultrathin soft package battery as claimed in claim 2, characterized in that: the width of the pressing head of the pressing clamp used in the step S6 is greater than or equal to the width of the soft package battery body.
10. The packaging process of the ultrathin soft package battery as claimed in claim 2, characterized in that: and in the step S5, a film is arranged on the battery tab, and the battery tab is connected with the battery core.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010993493.9A CN112151870A (en) | 2020-09-21 | 2020-09-21 | Packaging process of ultrathin soft package battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010993493.9A CN112151870A (en) | 2020-09-21 | 2020-09-21 | Packaging process of ultrathin soft package battery |
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| CN112151870A true CN112151870A (en) | 2020-12-29 |
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| CN202010993493.9A Pending CN112151870A (en) | 2020-09-21 | 2020-09-21 | Packaging process of ultrathin soft package battery |
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Citations (6)
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| CN101183736A (en) * | 2007-11-28 | 2008-05-21 | 万向集团公司 | Method of packaging high capacity polymer lithium battery |
| CN101707263A (en) * | 2009-07-15 | 2010-05-12 | 深圳市海太阳实业有限公司 | Method for packaging cylindrical polymer lithium-ion battery |
| CN201681994U (en) * | 2010-05-31 | 2010-12-22 | 东莞市金赛尔电池科技有限公司 | Device for locating battery polar ear |
| CN208226021U (en) * | 2018-05-24 | 2018-12-11 | 江苏金赛尔电池科技有限公司 | Two envelope seal clamp of poly-lithium battery |
| CN209439603U (en) * | 2018-12-17 | 2019-09-27 | 东莞市金赛尔电池科技有限公司 | A kind of fixture for laser welding |
| CN111313095A (en) * | 2019-05-06 | 2020-06-19 | 萍乡市清安锂硫科技有限公司 | Process for positioning and packaging top side seal of lithium ion soft package battery |
-
2020
- 2020-09-21 CN CN202010993493.9A patent/CN112151870A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183736A (en) * | 2007-11-28 | 2008-05-21 | 万向集团公司 | Method of packaging high capacity polymer lithium battery |
| CN101707263A (en) * | 2009-07-15 | 2010-05-12 | 深圳市海太阳实业有限公司 | Method for packaging cylindrical polymer lithium-ion battery |
| CN201681994U (en) * | 2010-05-31 | 2010-12-22 | 东莞市金赛尔电池科技有限公司 | Device for locating battery polar ear |
| CN208226021U (en) * | 2018-05-24 | 2018-12-11 | 江苏金赛尔电池科技有限公司 | Two envelope seal clamp of poly-lithium battery |
| CN209439603U (en) * | 2018-12-17 | 2019-09-27 | 东莞市金赛尔电池科技有限公司 | A kind of fixture for laser welding |
| CN111313095A (en) * | 2019-05-06 | 2020-06-19 | 萍乡市清安锂硫科技有限公司 | Process for positioning and packaging top side seal of lithium ion soft package battery |
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Application publication date: 20201229 |