CN209561463U - A kind of aluminum plastic film, encapsulating structure and flexible-packaged lithium secondary cell - Google Patents
A kind of aluminum plastic film, encapsulating structure and flexible-packaged lithium secondary cell Download PDFInfo
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- CN209561463U CN209561463U CN201920203719.3U CN201920203719U CN209561463U CN 209561463 U CN209561463 U CN 209561463U CN 201920203719 U CN201920203719 U CN 201920203719U CN 209561463 U CN209561463 U CN 209561463U
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- punching hole
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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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Abstract
The utility model discloses a kind of aluminum plastic films, encapsulating structure and flexible-packaged lithium secondary cell, including punch forming in the first punching hole and the second punching hole on aluminum plastic film, the aluminum plastic film is integral type, first punching hole is adjacent with the second punching hole and is provided with lattice between the two, the lattice includes the first divider, second divider and the arc strip for connecting the first divider and the second divider, wherein the first divider and the second divider are arranged in parallel and spacing between the two is 1 ~ 3mm, the radian of the arc strip is π, first punching hole and second punching hole it is near coal-mine be in same level on and the horizontal plane and arc strip it is tangent, reduce a wherein edge sealing as fold position by lattice when packaged, and then it is increased under the premise of aluminum plastic film dosage is constant and rushes pit body product, suitable for conventional liquid flexible-packaged lithium Battery, mixing solid-liquid electrolyte flexible-packaged lithium battery, solid-state flexible-packaged lithium battery, promote the energy density of entire flexible-packaged lithium secondary cell.
Description
Technical field
The utility model relates to the technical fields of secondary cell, more particularly, to a kind of aluminum plastic film, encapsulating structure and Soft Roll
Fill lithium secondary battery.
Background technique
Secondary cell is also known as rechargeable battery or battery, and activity can be made after battery discharge by way of charging by referring to
Substance activating and the battery continued to use.Main secondary cell type has " ni-mh ", " ni-Cd " " plumbic acid (lead electric power storage in the market
Pond) " and " lithium ion battery " etc..With the development of lithium ion battery technology, occur solid state lithium battery in the market, uses
Glass compound made of lithium, sodium replaces the electrolyte of previous lithium battery, greatly improves energy density as transmitter.
Wherein it is higher with energy density, voltage is higher, body as secondary cell a kind of for flexible-packaged lithium secondary cell
The advantages that product is smaller, environmentally friendly is widely used in the industries such as electronic communication technology and new-energy automobile.Aluminum plastic film is flexible package
The main packaging material of lithium secondary battery, as shown in Figures 1 and 2, when flexible-packaged lithium secondary cell is packaged, in advance to two
Aluminum plastic film carries out die stamp respectively, obtains rushing hole 1a accordingly, rushes in the 1a of hole at any one and be put into battery core 2 then by two
Aluminum plastic film merges to be packaged using traditional hot pressing mode.Such plastic-aluminum membrane structure is needed in packaging by hot pressing to battery core 2
Surrounding is sealed, and aluminum plastic film is necessarily required to have the heat-sealing region of one fixed width in heat seal process, and four envelopes are formed after heat-sealing
While being respectively closedtop 1b, underseal 1c and two side seal 1d.And since secondary cell installation space has on major applications product
Limit, limits aluminum plastic film dosage, to guarantee that enough heat-sealing regions have to reduce the effective volume in punching hole, thereby reduces whole
The energy density of a secondary battery of soft package.
Utility model content
First purpose of the utility model is to provide a kind of with aluminum plastic film, it is possible to increase to effective packaging volume of battery core,
And then improve the energy density of flexible-packaged lithium secondary cell.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of aluminum plastic film cheats in the first punching on aluminum plastic film including punch forming and the second punching hole, the aluminum plastic film is
Integral type, first punching hole is adjacent with the second punching hole and is provided with lattice between the two, and the lattice includes first point
Parting bead, the second divider and the arc strip for connecting the first divider and the second divider, wherein the first divider and second point
Parting bead is arranged in parallel and spacing between the two is 1 ~ 3mm, and the radian of the arc strip is π, the first punching hole and the second punching hole
It is near coal-mine in the same level and the horizontal plane and arc strip are tangent.
By using above-mentioned technical proposal, the first punching hole and the second punching hole are gone out respectively on the aluminum plastic film of integral type,
It is installed and used as subsequent battery core, pair when set lattice is as an encapsulation between the first punching hole and the second punching hole
Folding part position provides certain doubling surplus, and the plane at the near coal-mine place in the first punching hole and the second punching hole and arc strip are tangent, protects
It is completely closed, is improved pair by the first punching hole and the cavity surrounding that is formed combined by the second punching hole when having demonstrate,proved aluminum plastic film encapsulation doubling
The leakproofness of battery core；The first divider and the second divider are as entire since spacing between the two is arranged in parallel in lattice
The width of lattice, this width reduces the first punching hole the/the second punching hole surface area, and then the surface area of corresponding battery core
Also reduce, influence energy density, increased when width is too small punching hole difficulty it is excessive and easily lead to the first punching hole with second punching cheat
The case where interpenetrating, and arc strip included in lattice is while connecting the first divider and the second divider
π, i.e. section semicircular in shape are set by its radian, the stress on the one hand reducing entire lattice in corner is concentrated, another
For aspect aluminum plastic film after encapsulation fold, the first divider and the second divider, which are on same perpendicular, reduces wherein one
Edge sealing enables under the aluminum plastic film dosage of restriction the volume in first punching hole the/the second punching hole to reach maximization, that is, improves pair
Effective packaging area of battery core improves the energy density of secondary cell, while after the first divider and the fold of the second divider
On same perpendicular, fit-state can be reached with the side wall of battery core, better guarantor is played for the battery core after encapsulation
Shield effect, and lattice fold rear arc item forms two sections of highest points using original arc strip as connecting line, arc strip by
There is certain draftability in being divided into two sections, secondary cell will necessarily expand in charge and discharge process, and then aluminum plastic film is same
Step is being swollen, and since being arranged in for arc strip provides certain stretching surplus during aluminum plastic film swells, effectively avoid
Aluminum plastic film swell during in lattice side there is a situation where rupturing, improve safety when using and using reliable
Property, additionally due to reducing a wherein edge sealing in subsequent encapsulation process, packaging technology is simplified, improves production efficiency.
Preferably: the thickness of first divider, the second divider and arc strip is all the same.
By using above-mentioned technical proposal, the setting of uniform wall thickness first being capable of the first separation when aluminum plastic film is encapsulated and turned down
The ipsilateral of item and the second divider is on a perpendicular, and more preferable improve improves encapsulation matter with the compactness of battery core side wall
Amount, and better protective effect is played to battery core.
Preferably: first punching, which is cheated, has the first bottom surface, and the junction of first bottom surface and side wall is provided with
End to end first leads cambered surface；Second punching hole has the second bottom surface, the junction setting of second bottom surface and side wall
There is end to end second to lead cambered surface, first leads cambered surface, and with second to lead the radian of cambered surface identical.
By using above-mentioned technical proposal, first leads the setting that cambered surface leads cambered surface with second can be by the first punching hole and the second punching
Four seamed edges and the stress dispersion of angle position for cheating bottom, avoid breakage especially at the position of angle, secondly improve the aesthetic feeling of appearance.
Preferably: described first, which leads cambered surface, leads the radian of cambered surface with second as π/4 ~ π/3.
By using above-mentioned technical proposal, radian crosses conference and reduces the volume in the first punching hole and the second punching hole, and then drops
The low energy density of secondary cell；Radian setting is too small not to have preferable stress dispersion.
Preferably: the aluminum plastic film further includes heat-sealing portion, and the outer rim that the heat-sealing portion is in aluminum plastic film includes two the
Two second heat-sealing items of two first heat-sealing items of one heat-sealing item and connection, first punching hole cheat that four sides are stupefied is all provided with the second punching
It is equipped with rounded corner.
By using above-mentioned technical proposal, the first punching hole is rushed the near coal-mine angle position stress point cheated by the setting of rounded corner with second
It dissipates, occurs to rupture the safety improved when using in package position after avoiding encapsulation, secondly beautify overall appearance.
Preferably: the depth in first punching hole is between 0.8 ~ 8mm, the depth in the second punching hole and the first punching hole
Depth is identical.
By using above-mentioned technical proposal, the first punching hole is identical as the second scour hole depth so that each half is set when battery core is installed
In in hole, and depth can carry out the flexibility that punching press improve subsequent encapsulation with the type of battery core.
Preferably: there are differences in height for the bottom surface that the bottom surface in first punching hole is cheated with the second punching.
By using above-mentioned technical proposal, the bottom surface in the first punching hole and the second punching hole is two near coal-mine in same there are difference in height
On one horizontal plane, i.e., the first punching hole and the depth in the second punching hole are different, and since the whole height of battery core is constant, the first punching is cheated and the
The height of whole depth and battery core matches after two punching hole combinations, and battery core can choose opposite scour hole depth before packaging
Biggish to be used as initial installation position, after improving battery core installation stability, another punching hole is turned over to be rushed with initial installation position
Hole is combined.
Preferably: the bottom surface that the bottom surface in first punching hole is cheated with the second punching is arcwall face, the arc of the arcwall face
Degree is between π/100 ~ π/10.
By using above-mentioned technical proposal, secondary cell expands in subsequent charge and discharge process, and first punching hole with
Second punching hole bottom surface is disposed as the arcwall face with certain radian, so that the first punching hole has certain deformation with the second punching hole
Amount extenuates the expansion due to secondary cell to the stress of aluminum plastic film.
Second purpose of the utility model is to provide a kind of encapsulating structure, and effective packaging volume of battery core can be improved, into
And increase the energy density of flexible-packaged lithium secondary cell.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of encapsulating structure, including a kind of aluminum plastic film, first punching hole is combined formation one with the second punching hole and is held
Chamber, wherein lattice is the one side wall of cavity, and the first divider and the second divider are on same perpendicular.
By using above-mentioned technical proposal, battery core, which can be packaged in, is rushed in cavity composed by hole by the first punching hole with second,
Lattice reduces a wherein edge sealing for original 4 edge sealing as the one side wall of cavity in turn, in the premise that aluminum plastic film dosage is constant
Under increase the volume of cavity, and then improve encapsulation after secondary cell energy density；Secondly lattice as cavity one
Side wall, the first divider and the second divider be on same perpendicular can be reduced encapsulation after be located at lattice side plastic-aluminum
The phenomenon that film protrusion, fold, the friction destruction with outside is reduced, the reliability used is improved.
The third purpose of the utility model is to provide a kind of flexible-packaged lithium secondary cell, energy density with higher.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of flexible-packaged lithium secondary cell including battery core and is packaged in the aluminum plastic film of battery core periphery.
By using above-mentioned technical proposal, aluminum plastic film eliminates wherein the one of subsequent encapsulation under the premise of dosage is constant
Edge sealing so that the pit body product of rushing of installation battery core increases, and then increases the volume of battery core, improves the secondary electricity of whole flexible-packaged lithium
The energy density in pond.
In conclusion the advantageous effects of the utility model are as follows:
1, by the lattice between the first punching hole and the second punching hole, lattice is used as fold position to reduce when packaged
A wherein edge sealing, and then increase aluminum plastic film dosage is constant under the premise of and rush pit body product, and then promote entire flexible-packaged lithium
The energy density of secondary cell；
2, lattice is by being arranged to two parallel the first dividers and the second divider, and the arc for being π using radian
Shape item is attached, and carries out fold in lattice and wait the first divider being on same perpendicular with the second divider and mentioning first
The high compactness with battery core, improves package quality, next reduces the appearance of external protrusion and fold, and then reduces and use
Collision or scraping in the process or in assembling process avoid aluminum plastic film from rupturing, and improve making for flexible-packaged lithium secondary cell
Use reliability；
3, first punching hole with second punching hole bottom surface be set as arcwall face preferably extenuate due to battery core expand and to plastic-aluminum
Internal stress produced by film improves the service life of entire flexible-packaged lithium secondary cell.
Detailed description of the invention
Fig. 1 rushes hole structure for aluminum plastic film in the prior art；
Fig. 2 is the structural schematic diagram of flexible-packaged lithium secondary cell in the prior art；
Fig. 3 is the structural schematic diagram of aluminum plastic film in embodiment one；
Fig. 4 is the schematic cross-section of aluminum plastic film in embodiment one；
Fig. 5 is the schematic cross-section of aluminum plastic film in embodiment two；
Fig. 6 is the front view of encapsulating structure in embodiment three；
Fig. 7 is the schematic diagram of encapsulating structure in embodiment three；
Fig. 8 is the portion the A enlarged drawing of Fig. 7；
Fig. 9 is the structural schematic diagram of flexible-packaged lithium secondary cell in example IV；
Figure 10 is the structural schematic diagram of aluminum plastic film in embodiment five；
Figure 11 is the schematic diagram of encapsulating structure in embodiment six；
Figure 12 is the structural schematic diagram of flexible-packaged lithium secondary cell in embodiment seven.
In figure, 1, aluminum plastic film；1a, punching hole；1b, closedtop；1c, underseal；1d, side seal；11, the first punching hole；111, the first bottom
Face；12, the second punching hole；121, the second bottom surface；13, lattice；131, the first divider；132, the second divider；133, arc
Item；1331, segmental arc；14, the first heat-sealing item；15, the second heat-sealing item；16, first cambered surface is led；17, second cambered surface is led；18, it falls
Fillet；2, battery core；21, anode ear；22, negative electrode lug；3, cavity；4, preformed groove.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment one
Refering to Fig. 3, a kind of aluminum plastic film, 1 outer profile of aluminum plastic film is in rectangle and is integral type, passes through in its ipsilateral end face
It is stamped and formed out adjacent the first punching hole 11 and the second punching hole 12, the first punching hole 11 is identical as the second punching 12 surface areas of hole and two
The periphery of person is provided with heat-sealing portion, and heat-sealing portion includes two first heat-sealing items 14 and two second heat-sealing items 15, two first heat
Strip of paper used for sealing 14 is attached using two second heat-sealing items 15.
Jointly refering to Fig. 3 and Fig. 4, it is provided with lattice 13 between the first punching hole 11 and the second punching hole 12, lattice 13 wraps
The first divider 131, the second divider 132 and arc strip 133 are included, the first divider 131 is parallel with the second divider 132 to be set
It sets and the two cheats 11 and second respectively as the first punching and rushes the side wall in hole 12.First divider 131 and the second divider 132 utilize
Arc strip 133 connects, and the radian of arc strip 133 is that π i.e. cross sectional shape is semicircle.
First punching hole 11 and the second the near coal-mine of punching hole 12 are on same level L1, and the upper surface in entire heat-sealing portion
On horizontal plane L1, horizontal plane L1 simultaneously pass through arc strip 133 highest point and arc strip 133 it is tangent, first punching cheat 11
Stupefied rounded corner 18 is provided with four sides in the second punching hole 12.
First punching hole 11 has the first bottom surface 111, offers first in the junction of the first bottom surface 111 and side wall and leads cambered surface
16, first, which leads cambered surface 16, joins end to end in closed；Second impact has the second bottom surface 121, in the second bottom surface 121 and side wall
Junction offers second and leads cambered surface 17, and second, which leads cambered surface 17, joins end to end in closed, wherein first leads cambered surface 16 and second
The radian for leading cambered surface 17 is identical between π/4 ~ π/3.
First bottom surface 111 and the second bottom surface 121 are the identical arcwall face of radian, and arcwall face is convex towards the side horizontal plane L1
If radian, between π/100 ~ π/10, preferably radian is π/50.
First punching hole 11 is identical as the depth in the second punching hole 12, between 0.8 ~ 8mm.
Embodiment two
Refering to Fig. 5, a kind of aluminum plastic film, the difference with embodiment one is that there are one for the first bottom surface 111 and the second bottom surface 121
Fixed difference in height, so that the depth in the first punching hole 11 is different from the depth in the second punching hole 12, the first punching hole 11 in the present embodiment
Depth is greater than the depth in the second punching hole 12.
Embodiment three
In conjunction with Fig. 6 and Fig. 7, a kind of encapsulating structure, including the aluminum plastic film 1 in embodiment one or embodiment two, the first punching hole
11 and second punching hole 12 be combined with each other to form a cavity 3, the outer rim of cavity 3 passes through heat-sealing respectively and forms a closedtop 1b and two
Side seal 1d, the side of opposite closedtop 1b are lattice 13.
Closedtop 1b after the mutual heat-sealing that coincides of two first heat-sealing items 14 by forming, and side seal 1d is by the second ipsilateral heat-sealing item
15 form after the mutual heat-sealing that coincides of length direction fold of lattice 13.
Refering to Fig. 8, lattice 13 after fold the first divider 131 and the second divider 132 be in perpendicular
On L2, the fold of arc strip 133 forms two symmetrical segmental arcs 1331, connects between two segmental arcs 1331 for line and the two is formed
One preformed groove 4, the preformed groove 4 are connected to cavity 3, and preformed groove 4 has certain distortion allowance.
Example IV
Refering to Fig. 9, a kind of flexible-packaged lithium secondary cell can be liquid flexible packing lithium storage battery, mixing solid-liquid electrolyte
Flexible-packaged lithium battery or solid-state flexible-packaged lithium battery any one, the present embodiment by taking solid-state flexible-packaged lithium battery as an example,
Including battery core 2 and it is encapsulated in the peripheral aluminum plastic film 1 of battery core 2, aluminum plastic film uses the aluminium in embodiment one or embodiment two
Plastic film 1.This flexible-packaged lithium secondary cell has anode ear 21 and negative electrode lug 22, and anode ear 21 and negative electrode lug 22 are in together
Side.
Battery core 2 stretches lattice after packaging, so that the outer surface of entire lattice 13 reduces lattice close to plane
Situations such as 13 outer surfaces are prominent, collapse, fold appearance.
Embodiment five
Refering to fig. 10, a kind of aluminum plastic film, the difference with embodiment one is the encapsulation suitable for strip battery core 2.
Embodiment six
Refering to fig. 11, a kind of encapsulating structure, including the aluminum plastic film 1 in embodiment five, the difference with embodiment two is, only
With a side seal 1d, which is surveyed by being formed after the mutual heat-sealing that coincides of two second heat-sealing items 15, and closedtop 1b is by the first ipsilateral heat-sealing
Item 14 is formed after turning down coincidence heat-sealing along its length from lattice 13, underseal 1c by ipsilateral another first heat-sealing item 14 from point
It is formed after portion 13 turns down coincidence heat-sealing along its length.
Embodiment seven
Refering to fig. 12, a kind of flexible-packaged lithium secondary cell including battery core 2 and is encapsulated in the aluminum plastic film 1 of 2 periphery of battery core,
Aluminum plastic film 1 uses the aluminum plastic film 1 in embodiment five.Difference with example IV is the anode ear 21 and cathode of battery core 2
Ear 22 is located at two sides.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of aluminum plastic film, special including punch forming in the first punching hole (11) and the second punching hole (12) on aluminum plastic film (1)
Sign is that the aluminum plastic film (1) is integral type, and the first punching hole (11) is adjacent with the second punching hole (12) and is arranged between the two
Have lattice (13), the lattice (13) includes first point of the first divider (131), the second divider (132) and connection
The arc strip (133) of parting bead (131) and the second divider (132), wherein the first divider (131) and the second divider (132)
It is arranged in parallel and spacing between the two is 1 ~ 3mm, the radian of the arc strip (133) is π, the first punching hole (11) and the second punching
Cheat the near coal-mine in the same level and the horizontal plane and arc strip (133) are tangent of (12).
2. a kind of aluminum plastic film according to claim 1, which is characterized in that first divider (131), the second divider
(132) and the thickness of arc strip (133) is all the same.
3. a kind of aluminum plastic film according to claim 1, which is characterized in that the first punching hole (11) has the first bottom surface
(111), the junction of first bottom surface (111) and side wall is provided with end to end first and leads cambered surface (16)；Described second
Punching hole (12) has the second bottom surface (121), and the junction of second bottom surface (121) and side wall is provided with end to end second
It leads cambered surface (17), first leads cambered surface (16), and with second to lead the radian of cambered surface (17) identical.
4. a kind of aluminum plastic film according to claim 3, which is characterized in that described first, which leads cambered surface (16) and second, leads cambered surface
(17) radian is π/4 ~ π/3.
5. a kind of aluminum plastic film according to claim 1, which is characterized in that the aluminum plastic film (1) further includes heat-sealing portion, described
The outer rim that heat-sealing portion is in aluminum plastic film (1) includes the two second of two first heat-sealing item (14) of two first heat-sealings item (14) and connection
It seals item (15), (12) four sides are stupefied is provided with rounded corner (18) with the second punching hole in the first punching hole (11).
6. a kind of aluminum plastic film according to claim 1, which is characterized in that it is described first punching hole (11) depth be 0.8 ~
Between 8mm, the depth in the second punching hole (12) is identical as the first punching hole depth of (11).
7. a kind of aluminum plastic film according to claim 1, which is characterized in that the bottom surface in the first punching hole (11) and the second punching
There are differences in height for the bottom surface in hole (12).
8. a kind of aluminum plastic film according to claim 1, which is characterized in that the bottom surface in the first punching hole (11) and the second punching
The bottom surface for cheating (12) is arcwall face, and the radian of the arcwall face is between π/100 ~ π/10.
9. a kind of encapsulating structure, which is characterized in that including a kind of described in any item aluminum plastic films of such as claim 1 ~ 8, described
One punching hole (11) combines with the second punching hole (12) and forms a cavity (3), and wherein lattice (13) is the one side wall of cavity (3), the
One divider (131) and the second divider (132) are on same perpendicular.
10. a kind of flexible-packaged lithium secondary cell, which is characterized in that including battery core (2) and be packaged in battery core (2) periphery as power
Benefit requires a kind of 1 ~ 8 described in any item aluminum plastic films (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920203719.3U CN209561463U (en) | 2019-02-13 | 2019-02-13 | A kind of aluminum plastic film, encapsulating structure and flexible-packaged lithium secondary cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920203719.3U CN209561463U (en) | 2019-02-13 | 2019-02-13 | A kind of aluminum plastic film, encapsulating structure and flexible-packaged lithium secondary cell |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668397A (en) * | 2020-06-24 | 2020-09-15 | 远景动力技术(江苏)有限公司 | Aluminum plastic film of soft package lithium ion battery and soft package lithium ion battery |
| CN112736288A (en) * | 2021-01-06 | 2021-04-30 | 曙鹏科技（深圳）有限公司 | Battery packaging method, battery and electronic equipment |
| CN113054293A (en) * | 2021-03-16 | 2021-06-29 | 东莞新能安科技有限公司 | Packaging film and battery |
| CN113707945A (en) * | 2021-07-26 | 2021-11-26 | 曙鹏科技（深圳）有限公司 | Preparation method of lithium ion battery |
| CN113910354A (en) * | 2021-09-22 | 2022-01-11 | 曙鹏科技（深圳）有限公司 | Cutting method and cutting equipment for aluminum-plastic foil, battery and manufacturing method of battery |
| CN114361663A (en) * | 2021-12-04 | 2022-04-15 | 万向一二三股份公司 | Power battery soft package material gentle-inclination double-pit shell punching method and battery thereof |
| CN116780052A (en) * | 2022-03-07 | 2023-09-19 | 比亚迪股份有限公司 | Plastic-aluminum film of battery and battery |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668397A (en) * | 2020-06-24 | 2020-09-15 | 远景动力技术(江苏)有限公司 | Aluminum plastic film of soft package lithium ion battery and soft package lithium ion battery |
| CN112736288A (en) * | 2021-01-06 | 2021-04-30 | 曙鹏科技（深圳）有限公司 | Battery packaging method, battery and electronic equipment |
| CN113054293A (en) * | 2021-03-16 | 2021-06-29 | 东莞新能安科技有限公司 | Packaging film and battery |
| CN113707945A (en) * | 2021-07-26 | 2021-11-26 | 曙鹏科技（深圳）有限公司 | Preparation method of lithium ion battery |
| CN113707945B (en) * | 2021-07-26 | 2024-03-22 | 曙鹏科技（深圳）有限公司 | Preparation method of lithium ion battery |
| CN113910354A (en) * | 2021-09-22 | 2022-01-11 | 曙鹏科技（深圳）有限公司 | Cutting method and cutting equipment for aluminum-plastic foil, battery and manufacturing method of battery |
| CN113910354B (en) * | 2021-09-22 | 2023-03-21 | 曙鹏科技（深圳）有限公司 | Cutting method and cutting equipment for aluminum-plastic foil, battery and manufacturing method of battery |
| CN114361663A (en) * | 2021-12-04 | 2022-04-15 | 万向一二三股份公司 | Power battery soft package material gentle-inclination double-pit shell punching method and battery thereof |
| CN116780052A (en) * | 2022-03-07 | 2023-09-19 | 比亚迪股份有限公司 | Plastic-aluminum film of battery and battery |
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