CN105845880A - Aluminum-plastic film laminated lithium ion battery equipped with positioning protective device - Google Patents
Aluminum-plastic film laminated lithium ion battery equipped with positioning protective device Download PDFInfo
- Publication number
- CN105845880A CN105845880A CN201510020441.2A CN201510020441A CN105845880A CN 105845880 A CN105845880 A CN 105845880A CN 201510020441 A CN201510020441 A CN 201510020441A CN 105845880 A CN105845880 A CN 105845880A
- Authority
- CN
- China
- Prior art keywords
- plastic film
- lithium ion
- aluminum plastic
- ion battery
- lamellar body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
-
- 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
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to an aluminum-plastic film laminated lithium ion battery equipped with a positioning protective device. The aluminum-plastic film laminated lithium ion battery comprises: a laminated body, which includes laminated pole pieces and diaphragms, wherein at least one tab welding part stretches out of the width end part of each pole piece respectively; an aluminum-plastic film shell, which is encapsulated outside the laminated body; an electrolyte solution, which is sealed in the aluminum-plastic film shell; tabs, one ends of which are connected to the mutually stacked tab welding part on the laminated body, and the other ends of which stretch out of the aluminum-plastic film shell; the positioning protective device, which is encapsulated in the aluminum-plastic film shell and is located at the laminated body's head connecting the tabs, with the connecting end between the tabs and the tab welding part being located on the rigid positioning protective device. The technical scheme provided by the invention is conducive to protecting the battery, improving the battery shape consistency, and enhancing the liquid retainability of the battery.
Description
Technical field
The present invention relates to lithium ion and manufacture field, particularly relate to a kind of plastic-aluminum being provided with location preventer
Film laminated lithium ion battery.
Background technology
In recent years, lithium ion battery have that running voltage is high, lightweight, volume is little, memory-less effect,
The features such as self discharge is little, have extended cycle life, lithium ion battery is fast-developing, is widely used in various shifting
Dynamic equipment.
Laminated lithium ion battery is a kind of lithium ion battery currently mainly, its be particularly well-suited to Large Copacity,
High-multiplying-power battery is applied.Current laminated lithium ion battery mainly uses plastic molding package.
The structure of current aluminum plastic film laminated lithium ion battery is as follows, it positive plate including being layered on top of each other,
Negative plate and barrier film, be respectively separated a barrier film between the positive plate, negative plate of any biphase neighbour,
Width end at positive plate, negative plate is extended with for the tab welding portion of tab welding respectively,
In vertical direction, the tab welding portion stretched out is the most just to stacking, and the width end in lamellar body is formed
Have two row opposite polarity tab welding portion, by the most just to tab welding portion be welded to each other together,
And jointly weld mutually with lug, wherein the lug being connected with the tab welding portion of positive plate is designated as positive pole
Ear, is designated as negative electrode lug by the lug being connected with the tab welding portion of negative plate, by place, tab welding portion
Width end is designated as the head of lamellar body.After obtaining lamellar body, by the fixing lamellar body of adhesive plaster binding
The surrounding of length direction, at the head sticking cloth of lamellar body, make adhesive plaster wrap up this head and surrounding from
And fix lamellar body and the head of fixing lamellar body.
Lamellar body obtained above is inserted in the recess that aluminum plastic film is the most made, carry out aluminum plastic film heat-sealing,
Perfusion, chemical conversion, the technique such as evacuation secondary heat-sealing, obtain aluminum plastic film laminated lithium ion battery.
The present inventor finds in the research process carrying out the present invention, and prior art at least exists following lacking
Fall into:
In use, the head of existing aluminum plastic film laminated lithium ion battery easily occurs that lug shakes to battery
, easily there are the problems such as burning or lug fracture in dynamic phenomenon, affect the life-span of battery；
It addition, the position, head position of existing aluminum plastic film laminated lithium ion battery easily encapsulates at aluminum plastic film evacuation
Depression occurs, affects battery outward appearance and waste inside battery space.
Summary of the invention
One of purpose of the embodiment of the present invention is to provide a kind of aluminum plastic film being provided with location preventer to fold
Sheet lithium ion battery.Apply this technical scheme to be conducive to protecting battery, improve battery appearance concordance, with
And improve the water retainability of battery.
A kind of aluminum plastic film laminated lithium ion battery that the embodiment of the present invention provides, including:
Lamellar body, including pole piece and the barrier film of stacking, the width end of each described pole piece is extended with respectively
At least one tab welding portion；
Aluminum plastic film housing, is encapsulated in outside described lamellar body；
Electrolyte, is sealed in described aluminum plastic film housing；
Lug, one end is connected with the tab welding portion being layered on top of each other on described duplexer, and the other end stretches out
Outside described aluminum plastic film housing；
Location preventer, is encapsulated in described aluminum plastic film housing, is positioned at described lamellar body and described lug
On the head connected, the connection end between described lug and described tab welding portion is positioned at described location to be prevented
On protection unit, described location preventer is rigidity.
Alternatively, described location preventer is provided with groove,
Described lug is bending with the connection end in described tab welding portion, and bending connects end tip edge
Inlay card position is fixed in described groove.
Alternatively, described lug is downward bending with the connection end in described tab welding portion, bending
The angle connected between end end and described tab welding position less than 90 degree.
Alternatively, the angle connected between end end and described tab welding position of bending is 60 degree.
Alternatively, on the preventer of described location, just described lamination side is additionally provided with hole portion, respectively
The one end in described hole portion is the first opening, and described first opening is towards described lamellar body, in each described hole portion
Endosmosis have described electrolyte.
Alternatively, the blind end that the other end is non-opening in each described hole portion.
Alternatively, the other end in each described hole portion is the second opening.
Alternatively, the axial direction in each described hole portion is parallel with the length direction of described lamellar body.
Alternatively, described location preventer is made up of plastic cement.
Alternatively, the length direction surrounding in described lamellar body is enclosed with adhesive plaster, at the head of described lamellar body
Portion is not enclosed with adhesive plaster.
Therefore, apply the present embodiment technical scheme, due to the head of lamellar body in aluminum plastic film housing
It is further fixed on a location preventer with fixing lug, is avoided that lug rocks and avoids open circuit or short circuit.
Making it addition, this location preventer is rigid material, it covers the head in lamellar body, with folded
The assembly of lamellar body composition, in rule shape, makes the head of aluminum plastic film laminated lithium ion battery seal through evacuation
Still in straight rule shape after dress, without caving in cause battery cephalosome due to the encapsulation of evacuation aluminum plastic film
The problems such as depressed deformation.It puts up the technical scheme of adhesive plaster parcel relative to prior art at lamellar body top,
Use the present embodiment technical scheme to it is advantageously ensured that battery with two side terminals and profile systematicness, improve battery
Quality.
It addition, it is rigidity that the present embodiment covers the location preventer at lamellar body head, it can be effective
The head of protection lamellar body, it is to avoid the collision infringement to lamellar body head, it is to avoid lug piece loosens and causes breaking
The situation such as road or short circuit occurs, and is conducive to extending the service life of battery.
In the present embodiment owing to being coated with the location preventer of rigidity at the head of lamellar body to protect it
Head and the connection of location lug, therefore at the head of lamellar body without putting up parcel adhesive plaster, and eliminate
The step of lamellar body head parcel adhesive plaster, and it practice, owing to the head of lamellar body is extended with lug,
Nose shape is irregular, is not easy to operation in its head parcel adhesive plaster operation, and uses the present embodiment technology
Scheme can omit this process, is conducive to improving the process efficiency that battery makes.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the application
Point, it is not intended that inappropriate limitation of the present invention.
The aluminum plastic film laminated lithium ion battery being provided with location preventer that Fig. 1 provides for the present embodiment 1
Perspective view；
Fig. 2 is the plan structure schematic diagram of Fig. 1 in the present embodiment 1；
Fig. 3 is the side-looking structural representation of Fig. 1 in the present embodiment 1；
Fig. 4 is the main TV structure schematic diagram of Fig. 1 in the present embodiment 1；
Fig. 5 is the A-A section of the connecting portion of Fig. 4 lamellar body and location preventer in the present embodiment 1
Structural representation.
Reference:
101: lamellar body；104: aluminum plastic film housing；103: lug；
102: location preventer；105: tab welding portion.
Detailed description of the invention
The present invention is described in detail, in the signal of this present invention below in conjunction with accompanying drawing and specific embodiment
Property embodiment and explanation be used for explaining the present invention, but not as a limitation of the invention.
See shown in Fig. 1-5, present embodiments provide a kind of aluminum plastic film laminated lithium ion battery, comprising:
Lamellar body 101, aluminum plastic film housing 104, electrolyte (being not drawn in figure), lug 103, location protection
Device 102.
Wherein lamellar body 101 is made up of with barrier film stacked on top of one another pole piece, and pole piece includes positive plate, negative plate,
Between any two positive plates, negative plate all between be separated with barrier film.Each pole piece is respectively by being coated with polar material layer
Pole piece body and stretching out constitute in the tab welding portion 105 of the width end of pole piece body, this lug
Weld part 105 is metal base, for being coated with polar material layer, for being welded to connect with lug 103.
It is formed with at least two row in lamellar body 101 the most just the tab welding portion 105 of stacking to be arranged, will be each
Tab welding portion 105 row are welded to each other together, and are respectively welded on each tab welding portion 105 row
Lug 103, thus connect in lamellar body 101 have respectively with lug 103, wherein with the pole of positive plate
The lug 103 that ear weld part 105 row connect is anode ear 103, with the tab welding portion 105 of negative plate
The lug 103 that row connect is negative electrode lug 103.
The location preventer 102 of the present embodiment is made for rigid material, is fixed on the lamellar body of the present embodiment
101 heads being connected with lug 103, between lamellar body 101 head and aluminum plastic film housing 104, make to fold
Connection end location between tab welding portion 105 and the lug 103 of lamellar body 101 head is fixed on location protection
On device 102, for fixing the installation of lug 103 of lamellar body 101 head, it is to avoid lug 103 rock and
Cause the problem such as short circuit or short circuit.
Aluminum plastic film housing 104 is as the encapsulating housing of battery, by anti-to lamellar body 101, electrolyte and location
Protection unit 102 is encapsulated in aluminum plastic film housing 104, and the end that lug 103 is connected with lamellar body 101 is packed
In aluminum plastic film housing 104, another free end stretches out outside aluminum plastic film housing 104.On lug 103 admittedly
Surely having tab 105, when aluminum plastic film encapsulates, this tab 105 is combined in one with aluminum plastic film melted by heating
Rise, it is achieved be tightly connected.
Therefore, apply the present embodiment technical scheme, due to lamellar body 101 in aluminum plastic film housing 104
Head be further fixed on a location preventer 102 with fixing lug 103, be avoided that lug 103 rock and
Avoid open circuit or short circuit.
It addition, this location preventer 102 is made for rigid material, it covers the head in lamellar body 101,
With the assembly of lamellar body 101 composition in regular shape, make the head of aluminum plastic film laminated lithium ion battery through taking out
Still in straight rule shape after Vacuum Package, without caving in cause electricity due to the encapsulation of evacuation aluminum plastic film
The problems such as pond head recess deformation.It puts up what adhesive plaster wrapped up relative to prior art at lamellar body 101 top
Technical scheme, uses the present embodiment technical scheme to it is advantageously ensured that battery with two side terminals and profile systematicness,
Improve the quality of battery.
It addition, it is rigidity that the present embodiment covers the location preventer 102 at lamellar body 101 head, it can
Effectively to protect the head of lamellar body 101, it is to avoid the collision infringement to lamellar body 101 head, it is to avoid lug
103 loosen cause the situation such as open circuit or short circuit to occur, be conducive to prolongation battery service life.
In the present embodiment due to be coated with at the head of lamellar body 101 the location preventer 102 of rigidity with
Protect its head and the connection of location lug 103, therefore at the head of lamellar body 101 without putting up parcel glue
Cloth, and eliminate the step of lamellar body 101 head parcel adhesive plaster, and it practice, due to lamellar body 101
Head is extended with lug 103, irregular at nose shape, is not easy to operation in its head parcel adhesive plaster operation,
And use the present embodiment technical scheme can omit this process, be conducive to improving the technique that battery makes
Efficiency.
As the signal of the present embodiment, the location preventer 102 of the present embodiment is provided with groove, folded
The end connecting end between weld part and the lug 103 of lamellar body 101 head is inlayed screens and is fixed on groove
In, with the connecting portion between fixing lug 103 and lamellar body 101, it is to avoid lug 103 rocks.
As the signal of the present embodiment, the connection between tab welding portion 105 and the lug 103 of the present embodiment
End tip bends, accordingly, and the groove shapes on the preventer 102 of location and tab welding portion 105
And the shape of the connection end tip between lug 103 is suitable, its end is inlayed screens and is fixed on groove
In, deform upon owing to connecting the end of end, under the effect of this deformation elastic force, its end firmly supports
In the recess edge of location preventer 102, and it is not easy to displacement, can preferably avoid tab welding portion 105
And the connection end dislocation between lug 103.
As the further signal of the present embodiment, between tab welding portion 105 and the lug 103 of the present embodiment
Connection end tip bend downwards, be bent into and make the angle between its end and lug 103 welding position be less than
90 degree, extremely the angle of end bending is more than 90 degree, and the deformation elastic force making end is bigger, more closely supports
In the recess edge of location preventer 102, and it is not easy to displacement.Such as tab welding portion 105 and lug
The angle that connection end tip between 103 bends downwards is 120 degree, makes end and tab welding portion 105
Between angle be 60 degree.
As the signal of the present embodiment, on the location preventer 102 of the present embodiment, just to described lamination
Body 101 side is additionally provided with multiple hole portion, and the one end in each hole portion is opening (being the first opening), and first opens
Mouth, towards lamellar body 101 head, is impregnated with electrolyte in the portion of each hole.It is relative to prior art, and application is originally
Embodiment technical scheme can better profit from aluminum plastic film housing 104 on lamellar body 101 head due to lug
103 connect and cause in the space of head as storage electrolyte space, being folded during battery applications
Lamellar body 101 supplements electrolyte, recovers battery capacity, improves the cycle performance of battery.
Test proves, owing to the electrolyte of the present embodiment is stored at the rigidity location protection of lamellar body 101 head
(rich solution inserts can be filled with in hole portion), at aluminum plastic film evacuation plastic packaging in hole portion in device 102
During, the outer surface of location preventer 102 bears most evacuation negative pressure, and hole portion
Interior negative pressure pressure is less, and its interior electrolyte is not easy to be pumped, and preferably realizes the function of liquid storage,
Realize to the protection of lamellar body 101 head and lug 103 fixing while, also add the storage of battery
Fluidity energy.
The technical scheme of rich solution packing material storage electrolyte is set relative to the head in lamellar body 101, should
Rich solution packing material is flexible material, it is impossible to realize the protection to lamellar body 101 head and lug 103 is solid
Fixed effect.
As the signal of the present embodiment, this enforcement location preventer 102 on each hole portion can be two
Equal opening is held to fill, it is also possible to be designed as single-ended opening shape, the most only one end and be provided with the first opening, the other end
In non-closure of openings shape.Test proves, uses single-ended opening shape can be conducive to the storage of electrolyte.
As the signal of the present embodiment, the hole portion of the present embodiment can not be linearity, it is also possible to preferably but not
It is limited to curve-like.Test proves, is set to curve convoluted and is more beneficial for the storage of electrolyte.
As the signal of the present embodiment, the hole portion of the present embodiment could be arranged to just to lamellar body 101 head
The aperture of in the middle part of opening relative opening portion or other positions is narrower, and test proves, uses this design more favourable
Storage in electrolyte.
The location preventer 102 of the present embodiment can be made up of plastic cement, it is also possible to etch-proof just by other
Property insulant is made.
It addition, as seen from Figure 5, in the present embodiment, the end making lug 103 be connected with lamellar body is positioned at
After the end profile opposite welding in tab welding portion 105, make end and the tab welding portion of lug 103
The end of 105 bends downwards, relative to lug end towards near tab welding portion 105 with
The connected mode of the external part of lamellar body, it is demonstrated experimentally that use the present embodiment technical scheme to be both avoided that
Lug 103 and tab welding portion 105 to be welded to connect part bending Impact direction identical, be not easy to due to curved
Roll over and ftracture and cause loose contact, and it is shared in aluminum plastic film battery to be more beneficial for reducing this welding portion
Space, improve the utilization rate of its inner space, and so welding easily make its end be easier to be embedded in
In the location preventer 102 of the present embodiment.
Test data analyzer:
Test example 1:
Stretching out the contrary lug of bipolarity (anode ear, negative electrode lug) with the width end in lamellar body is
Signal, the effect of this present embodiment carries out analysis of experiments.
The specification of this aluminum plastic film laminated lithium ion battery sample of this test example is: AP8542126-G2A
-4500mAh.Wherein, AP represents pure cobalt system, 8542126 thickness representing these polymer Li-ion batteries,
A size of 8.5mm, 42mm, 126mm wide, long, G represents that nominal multiplying power is 15C, and 2 represent battery
For high capacity type, A represents the purest cobalt acid lithium, and 4500 represent the nominal capacity of battery.
Being coated with location preventer on the present embodiment lamellar body head, this location preventer is for being reality
Heart body, is not provided with storing the hole portion of electrolyte.
Test example 2:
The specification of the aluminum plastic film laminated lithium ion battery sample of the present embodiment with test example 1, its structure and test
1 difference of example is only in that: be provided with many rounds portion, hole on the location preventer in this test example
The most through shape in portion, the first opening is arranged on just head side to lamellar body, and the second opening is just arranged on
To aluminum plastic film side.
Test example 3:
The specification of the aluminum plastic film laminated lithium ion battery sample of the present embodiment with test example 1, its structure and test
2 differences of example are only in that: the many rounds portion on the preventer of location in this test example is curve
The through shape of line, the first opening is arranged on just head side to lamellar body, and the second opening is arranged on just to plastic-aluminum
Film side.
Test example 4:
The specification of the aluminum plastic film laminated lithium ion battery sample of the present embodiment with test example 1, its structure and test
2 differences of example are only in that: the many rounds portion on the preventer of location in this test example is straight line
Non-penetrating shape, each hole portion is provided with the first opening, the other end in hole portion in just head side to lamellar body
For the non-opening shape closed.
Test example 5:
The specification of the aluminum plastic film laminated lithium ion battery sample of the present embodiment with test example 1, its structure and test
2 differences of example are only in that: the many rounds portion on the preventer of location in this test example is curve
Non-penetrating shape, each hole portion is provided with the first opening, the other end in hole portion in just head side to lamellar body
For the non-opening shape closed, each hole portion is serpentine.
Reference examples 1:
The specification of the aluminum plastic film laminated lithium ion battery sample of the present embodiment is with test example 1, at the head of lamellar body
Portion is not covered with positioning preventer, but is wrapped between lug and tab welding portion by adhesive plaster
Connect.
Reference examples 2:
The specification of the aluminum plastic film laminated lithium ion battery sample of the present embodiment is with test example 1, and it is with reference examples 1
Difference be, the head in lamellar body is also filled with the rich solution implant that material is identical with barrier film.
Above-mentioned each reference examples and the production environment of test example, main technique and test technology are as follows:
1, positive pole one side surface density 117 ± 2g/m2, two-sided surface density 234 ± 3g/m2 (send out in coating process
The existing phenomenon that lays particular stress on, temperature 23.0 DEG C, humidity 35.1%, dew point 6.76 DEG C, production time JIUYUE 22
6:06-9:36).Negative pole one side surface density 54 ± 2g/m2, two-sided surface density 108 ± 2g/m2 (temperature 23.5 DEG C,
Humidity 33.3%, dew point 6.44 DEG C, No. 22 0:32-2:37 of production time JIUYUE)；
2, No. 24 8:12-10:33 of lamination production time JIUYUE, produce (workshop temperature with automatic laminating machine
25.6 DEG C, humidity 41.9%, dew point 11.7 DEG C)；
3, encapsulation No. 25 9:38-11:42 of production time JIUYUE, (workshop temperature 26.3 DEG C, humidity 38.3%,
Dew point 10.97 DEG C)；
4, No. 27 10:26-11:46 of fluid injection production time JIUYUE (workshop temperature 26.1 DEG C, humidity 28.4%,
Dew point 6.38 DEG C)；
5, chemical conversion production time JIUYUE 8:12-17:23 (workshop temperature 28.5 DEG C, humidity 42.4%, dew on the 28th
Point 14.49 DEG C)；
6, production time JIUYUE of bleeding 13:13-15:36 on the 29th, during find the thinnest (the workshop temperature of battery core body
Spend 23.5 DEG C, humidity 65.4%, dew point 16.64 DEG C)；
7, battery performance detection 30 8:41-12 months 10 of time JIUYUE 9:53, detection equipment is new prestige multiplying power
Detecting box (workshop temperature 24.5 DEG C, humidity 65.8%, dew point 17.68 DEG C).
According to the preparation technology of above-mentioned aluminum plastic film lamellar body lithium ion battery, prepare above-mentioned experimental example respectively
1-5,10, the sample of reference examples 1-2, in cell manufacturing process, the mistake liquid rate of lithium ion battery is carried out
Test, obtains the liquid vector test tables of data shown in table one, two.
Battery vacuum-pumping encapsulation is complete obtain lithium aluminum plastic film laminated lithium ion battery after, observe outside sample
See, obtain the sample finished appearance quality controls table shown in table three.
Taking reference examples 1-2, in test example 1-5, each spec battery 3PCS is circulated detection；Circulate 200 weeks
After record the capability retention of battery, capability retention is the best, shows that liquid storage capacity is the strongest, can promote
Cycle performance of battery.
In table one, two, three, four:
Sequence number 1-10 is that the laminated lithium ion battery of the rigidity location preventer not adding the present embodiment is (the most right
The battery of 1 as usual)；
Sequence number 11-20 is that to be filled with the laminated lithium ion battery of rich solution implant at the head of lamellar body (the most right
The battery of 2 as usual).
Sequence number 21-30 is to have added the laminated lithium ion battery sample of location preventer at the head of lamellar body
(i.e. the battery of test example 1)；
Sequence number 31-40 is the laminated lithium ion battery of the location preventer having added band straight line through shape hole portion
Sample (i.e. the battery of test example 2)；
Sequence number 41-50 is that the laminated lithium ion battery sample of the location preventer of the through shape of band curve (i.e. tries
Test the battery of example 3)；
Sequence number 51-60 be the non-penetrating shape of band straight line location preventer laminated lithium ion battery sample (i.e.
The battery of test example 4)；
The laminated lithium ion battery sample of the location preventer that sequence number 61-70 is the non-penetrating shape of band curve
(i.e. the battery of test example 5).
Table one: liquid vector test tables of data
Table two is that table one data arrange the data analysis obtained:
Table two
| Project | Lose liquid rate meansigma methods | The rate of unemployment reduction amount of hinge structure | The rate of unemployment reduction rate of hinge structure |
| Comparison 1 | 2.36% | - | - |
| Comparison 2 | 2.16% | 0.20% | 8.36% |
| Implement 1 | 2.12% | 0.24% | 11.19% |
| Implement 2 | 1.52% | 0.83% | 39.36% |
| Implement 3 | 1.46% | 0.90% | 58.99% |
| Implement 4 | 1.46% | 0.90% | 61.69% |
| Implement 5 | 1.27% | 1.08% | 74.22% |
From table one, two, use technical scheme shown in this test example 2-5, in the encapsulation of aluminum plastic film battery
Process is conducive to being substantially reduced the mistake liquid rate of battery, and the mistake liquid rate of battery is the least, the cyclicity of its battery
Can be the best.Therefore use technical scheme shown in the present embodiment 2-5 to be conducive to covering the cycle performance of battery.See
Table one is visible, uses test example 5 technical scheme can obtain beyond thought beneficial effect.
Table three: sample finished appearance quality controls table
From table three, the location protection dress of the present embodiment is set in aluminum plastic film lamellar body lithium ion battery
Put, be conducive to improving the flat appearance of battery, reduce the bad order rate of battery.
Table four: circulate 200 weeks capability retention tables
From table four, the present embodiment technical scheme is used to be conducive to improving the cycle performance of battery.Especially
Be use the desirable purpose of test example 5 less than excellent results.
Embodiments described above, is not intended that the restriction to this technical scheme protection domain.Any
Amendment, equivalent and the improvement etc. made within the spirit of above-mentioned embodiment and principle, all should comprise
Within the protection domain of this technical scheme.
Claims (10)
1. an aluminum plastic film laminated lithium ion battery, is characterized in that, including:
Lamellar body, including pole piece and the barrier film of stacking, the width end of each described pole piece is extended with respectively
At least one tab welding portion；
Aluminum plastic film housing, is encapsulated in outside described lamellar body；
Electrolyte, is sealed in described aluminum plastic film housing；
Lug, one end is connected with the tab welding portion being layered on top of each other on described duplexer, and the other end stretches out
Outside described aluminum plastic film housing；
Location preventer, is encapsulated in described aluminum plastic film housing, is positioned at described lamellar body and described lug
On the head connected, the connection end between described lug and described tab welding portion is positioned at described location to be prevented
On protection unit, described location preventer is rigidity.
Aluminum plastic film laminated lithium ion battery the most according to claim 1, is characterized in that,
Described location preventer is provided with groove,
Described lug is bending with the connection end in described tab welding portion, and bending connects end tip edge
Inlay card position is fixed in described groove.
Aluminum plastic film laminated lithium ion battery the most according to claim 2, is characterized in that,
Described lug is downward bending with the connection end in described tab welding portion, the connection end of bending
Angle between end and described tab welding position is less than 90 degree.
Aluminum plastic film laminated lithium ion battery the most according to claim 3, is characterized in that,
The angle connected between end end and described tab welding position of bending is 60 degree.
Aluminum plastic film laminated lithium ion battery the most according to claim 1, is characterized in that,
On the preventer of described location, just described lamination side is being additionally provided with hole portion, each described hole portion
One end be the first opening, described first opening is towards described lamellar body, endosmosis in each described hole portion
State electrolyte.
Aluminum plastic film laminated lithium ion battery the most according to claim 5, is characterized in that,
The blind end that the other end is non-opening in each described hole portion.
Aluminum plastic film laminated lithium ion battery the most according to claim 5, is characterized in that,
The other end in each described hole portion is the second opening.
8., according to the aluminum plastic film laminated lithium ion battery described in claim 5 or 6 or 7, it is characterized in that,
The axial direction in each described hole portion is parallel with the length direction of described lamellar body.
9., according to arbitrary described aluminum plastic film laminated lithium ion battery of Claims 1-4, it is characterized in that,
Described location preventer is made up of plastic cement.
10., according to arbitrary described aluminum plastic film laminated lithium ion battery of Claims 1-4, it is characterized in that,
Length direction surrounding in described lamellar body is enclosed with adhesive plaster, and the head in described lamellar body does not wraps up
There is adhesive plaster.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052903.2A CN107968183B (en) | 2015-01-15 | 2015-01-15 | Aluminum-plastic film laminated lithium ion battery provided with positioning protection device |
| CN201510020441.2A CN105845880B (en) | 2015-01-15 | 2015-01-15 | It is provided with the aluminum plastic film laminated lithium ion battery of positioning protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510020441.2A CN105845880B (en) | 2015-01-15 | 2015-01-15 | It is provided with the aluminum plastic film laminated lithium ion battery of positioning protective device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810052903.2A Division CN107968183B (en) | 2015-01-15 | 2015-01-15 | Aluminum-plastic film laminated lithium ion battery provided with positioning protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105845880A true CN105845880A (en) | 2016-08-10 |
| CN105845880B CN105845880B (en) | 2018-08-10 |
Family
ID=56580031
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510020441.2A Active CN105845880B (en) | 2015-01-15 | 2015-01-15 | It is provided with the aluminum plastic film laminated lithium ion battery of positioning protective device |
| CN201810052903.2A Active CN107968183B (en) | 2015-01-15 | 2015-01-15 | Aluminum-plastic film laminated lithium ion battery provided with positioning protection device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810052903.2A Active CN107968183B (en) | 2015-01-15 | 2015-01-15 | Aluminum-plastic film laminated lithium ion battery provided with positioning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105845880B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579174A (en) * | 2017-09-08 | 2018-01-12 | 广东天劲新能源科技股份有限公司 | Overlength cycle life high-energy-density Soft Roll polymer power battery |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411081A (en) * | 2002-11-15 | 2003-04-16 | 中信国安盟固利电源技术有限公司 | Flexible package liquid state lithium ion battery |
| CN1787274A (en) * | 2005-10-18 | 2006-06-14 | 天津力神电池股份有限公司 | Soft packed lithium ion battery of resolving deforming and safety problem and mfg. method thereof |
| CN202633450U (en) * | 2012-03-12 | 2012-12-26 | 宁德新能源科技有限公司 | Flexible package lithium ion battery |
| CN103035862A (en) * | 2012-12-14 | 2013-04-10 | 东莞新能德科技有限公司 | Inbuilt frame polymer lithium ion battery |
| CN202905884U (en) * | 2012-04-16 | 2013-04-24 | 宁德新能源科技有限公司 | Welding-packaged flexibly-packaged lithium ion battery |
| CN204289590U (en) * | 2015-01-15 | 2015-04-22 | 深圳市格瑞普电池有限公司 | Be provided with the aluminum plastic film laminated lithium ion battery of location protector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4803360B2 (en) * | 2005-12-02 | 2011-10-26 | 三菱自動車工業株式会社 | Lithium ion secondary battery |
| JP2011210662A (en) * | 2010-03-30 | 2011-10-20 | Sanyo Electric Co Ltd | Laminated battery |
| CN202094234U (en) * | 2011-04-30 | 2011-12-28 | 杭州力奥科技有限公司 | Soft packaging lithium ion power battery |
| CN202495548U (en) * | 2012-02-13 | 2012-10-17 | 东莞新能源科技有限公司 | Flexible packaging lithium ion battery |
| KR20140078817A (en) * | 2012-12-18 | 2014-06-26 | 주식회사 엘지화학 | Secondary Battery Employed with Bottom Insulator Having Hole |
-
2015
- 2015-01-15 CN CN201510020441.2A patent/CN105845880B/en active Active
- 2015-01-15 CN CN201810052903.2A patent/CN107968183B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411081A (en) * | 2002-11-15 | 2003-04-16 | 中信国安盟固利电源技术有限公司 | Flexible package liquid state lithium ion battery |
| CN1787274A (en) * | 2005-10-18 | 2006-06-14 | 天津力神电池股份有限公司 | Soft packed lithium ion battery of resolving deforming and safety problem and mfg. method thereof |
| CN202633450U (en) * | 2012-03-12 | 2012-12-26 | 宁德新能源科技有限公司 | Flexible package lithium ion battery |
| CN202905884U (en) * | 2012-04-16 | 2013-04-24 | 宁德新能源科技有限公司 | Welding-packaged flexibly-packaged lithium ion battery |
| CN103035862A (en) * | 2012-12-14 | 2013-04-10 | 东莞新能德科技有限公司 | Inbuilt frame polymer lithium ion battery |
| CN204289590U (en) * | 2015-01-15 | 2015-04-22 | 深圳市格瑞普电池有限公司 | Be provided with the aluminum plastic film laminated lithium ion battery of location protector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579174A (en) * | 2017-09-08 | 2018-01-12 | 广东天劲新能源科技股份有限公司 | Overlength cycle life high-energy-density Soft Roll polymer power battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107968183B (en) | 2020-08-14 |
| CN107968183A (en) | 2018-04-27 |
| CN105845880B (en) | 2018-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106207195B (en) | A kind of stacked flexible battery and preparation method thereof | |
| CN104681858B (en) | Ultrathin flexible lithium ion battery and preparation method thereof | |
| CN100349322C (en) | Cylindrical flexible packed lithium ion storage cell with aluminum-plastic composite film | |
| CN104183798B (en) | Battery cell and battery pack | |
| JP5079782B2 (en) | Soft package large capacity lithium ion battery and method of manufacturing the same | |
| CN111937212B (en) | Battery cell | |
| CN110190340A (en) | Secondary cell | |
| CN209401784U (en) | Secondary cell | |
| CN204144329U (en) | Battery cell and battery pack | |
| CN106898823A (en) | A kind of preparation method of water storage type flexible packing lithium ion electric core and battery | |
| CN112424985A (en) | Pouch case and method of manufacturing pouch type secondary battery including the same | |
| CN107425198A (en) | The polymer Li-ion battery and its manufacture method of monomer vast capacity | |
| JP2015534231A (en) | Current collector with built-in sealing means, bipolar battery including such a current collector, and method of manufacturing such a battery | |
| CN209249528U (en) | A kind of battery pack | |
| CN209104259U (en) | Secondary cell | |
| JP7489406B2 (en) | Cell battery | |
| CN109461974A (en) | A kind of lamination button cell and its production technology | |
| CN105845880A (en) | Aluminum-plastic film laminated lithium ion battery equipped with positioning protective device | |
| CN204289590U (en) | Be provided with the aluminum plastic film laminated lithium ion battery of location protector | |
| CN217903249U (en) | Battery with improved battery capacity | |
| CN103531852B (en) | A kind of bipolar lead-acid accumulator | |
| CN204189831U (en) | Battery cell and battery pack | |
| US20110151319A1 (en) | Secondary battery with enhanced structure | |
| CN213583956U (en) | Polymer battery structure with double folded edges | |
| CN110661035A (en) | Single battery cell, flexible battery pack and preparation method of flexible battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210311 Address after: 423038 Donghe West Road, Chenzhou nonferrous metal Industrial Park (export processing zone), Hunan Province Patentee after: HUNAN GREPOOW NEW ENERGY Co.,Ltd. Address before: 518109 tongfuyu Industrial Zone, Gaofeng community, Dalang street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Grepow Battery Co.,Ltd. |