CN107742679A - A kind of lithium battery of plastic-aluminum shell packaging - Google Patents
A kind of lithium battery of plastic-aluminum shell packaging Download PDFInfo
- Publication number
- CN107742679A CN107742679A CN201710948339.8A CN201710948339A CN107742679A CN 107742679 A CN107742679 A CN 107742679A CN 201710948339 A CN201710948339 A CN 201710948339A CN 107742679 A CN107742679 A CN 107742679A
- Authority
- CN
- China
- Prior art keywords
- edge sealing
- plastic
- aluminum shell
- lithium battery
- battery
- 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.)
- Withdrawn
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 66
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 27
- 238000004806 packaging method and process Methods 0.000 title abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 79
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
-
- 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
-
- 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of plastic-aluminum shell packaging lithium battery, including plastic-aluminum shell (1) and battery, described plastic-aluminum shell (1) is provided with the groove (1.1) for set battery core, one side of described plastic-aluminum shell (1) is provided with the first edge sealing (1.2), airbag (1.4) and the second edge sealing (1.3), described airbag (1.4) is between the first edge sealing (1.2) and the second edge sealing (1.3), the side that described plastic-aluminum shell (1) is provided with the first edge sealing (1.2) is provided with the high temperature paper for having effect of heat insulation and not reacted with lithium battery electrolytes, described high temperature paper is between the first edge sealing (1.2) and the second edge sealing (1.3) and close to the first edge sealing (1.2).The different widths of first edge sealing of the width of the first actual edge sealing of the plastic-aluminum shell packaging lithium battery with envisioning are very few.
Description
Technical field
The present invention relates to a kind of plastic-aluminum shell packaging lithium battery.
Background technology
At present, in all kinds lithium battery, plastic-aluminum shell packaging lithium battery by high-energy, it is in light weight, in the form of make by oneself etc. it is excellent
Point, it is widely used in various digital electronic goods.Flexible packing lithium ion battery includes plastic-aluminum shell and battery, described aluminium
Punching has the groove for set battery core in plastic housing.In the production process of plastic-aluminum shell packaging lithium battery, battery is pacified first
Load in the groove of plastic-aluminum shell；Then by plastic-aluminum shell to folding up；First three sides heat-sealing of plastic-aluminum shell is got up after doubling,
Reserve while being used for plastic-aluminum shell internal injection electrolyte；It is first to last side of plastic-aluminum shell after electrolyte injection is over
Carry out once sealing and between battery and the first edge sealing (i.e. the edge sealing of last side of plastic-aluminum shell progress first time sealing)
Airbag is reserved, i.e., has gas generation because lithium ion battery is formed in SE I membrane process in initial charge after injecting electrolyte,
So that air-blowing phenomenon occurs in flexible-packed battery, not only battery performance and safety are made a big impact, equally can also influence outward appearance
Size, therefore, last side of plastic-aluminum shell is needed to reserve airbag and sealed twice；After formation of Li-ion batteries, production
Raw gas is stored in airbag, and battery carries out secondary sealing, and the relieving stagnant Qi bag that stabbed with a bayonet while secondary sealing is just taken out rapidly
The gas in airbag is taken, the plastic-aluminum shell edge sealing process of such flexible-packed battery just completes.
Refer to shown in Fig. 1 and Fig. 2, the plastic-aluminum shell packaging lithium battery of prior art has following defect：Plastic-aluminum shell is last
When one side carries out first time edge sealing, the plastic-aluminum shell near the first edge sealing also can be by heat sealing so that the first actual edge sealing
Width is greater than the width of the first edge sealing of anticipation, so also reduces about 10% airbag usable floor area, and due to
The uncertainty of one edge sealing width, battery stabbed with a bayonet while secondary sealing airbag when, can easily cause bayonet thorn less than
Active position, so as to which the bad product rate of battery can be increased.Therefore, it is past in order to reserve sufficiently large airbag area in practical operation
Toward the width that can increase the airbag between battery and the first edge sealing, so as to also just increase the dosage of plastic-aluminum shell, to flexible package
Lithium ion battery adds cost.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of width of the first actual edge sealing and the first edge sealing of anticipation
The very few plastic-aluminum shell packaging lithium battery of different widths.
The technical solution of the present invention is to provide a kind of plastic-aluminum shell packaging lithium battery with following structure, including aluminium
Plastic housing and battery, described plastic-aluminum shell are provided with the groove for set battery core, and a side of described plastic-aluminum shell is provided with
First edge sealing, airbag and the second edge sealing, between the first edge sealing and the second edge sealing, described plastic-aluminum shell is provided with described airbag
The side of first edge sealing is provided with the high temperature paper for having effect of heat insulation and not reacted with lithium battery electrolytes, described high temperature
Paper is between the first edge sealing and the second edge sealing and close to the first edge sealing.
After above structure, plastic-aluminum shell packaging lithium battery of the present invention compared with prior art, has advantages below：
There is heat-insulated effect because side of the plastic-aluminum shell provided with the first edge sealing of plastic-aluminum shell packaging lithium battery of the present invention is provided with
Fruit and the high temperature paper not reacted with lithium battery electrolytes, the high temperature paper are between the first edge sealing and the second edge sealing and close
In the first edge sealing, so, when the side to plastic-aluminum shell carries out first time edge sealing, due to the effect of high temperature paper, first time edge sealing
When heat will not nearby spread and come to the plastic-aluminum shell near the first edge sealing, therefore, the plastic-aluminum shell near the first edge sealing is not yet
It can be sealed so that the different widths of first edge sealing of the width of the first actual edge sealing with envisioning are very few, so also would not
Reduce the area of airbag, so as to will not also increase the dosage of plastic-aluminum shell, plastic-aluminum shell packaging lithium battery will not be made to increase cost；Piercing
When lancination airbag, it will not also pierce less than active position, so as to reduce the bad product rate of battery.
As a modification of the present invention, described high temperature paper is high tempreture tape, and described high tempreture tape is attached to described
On the inner surface of the side of first edge sealing of plastic-aluminum shell.Because described high temperature paper is high tempreture tape, as long as being pasted onto during use
On the inner surface of plastic-aluminum shell, use is more convenient；Again because described high tempreture tape is attached to the first envelope of described plastic-aluminum shell
On the inner surface of the side on side, thermal insulation effect is better.
There is a kind of improvement as the present invention, described high tempreture tape is parallel to the first described edge sealing.Described height
The width of warm gummed paper is 1~1.5 times of the first edge sealing width.The described edge sealing of high tempreture tape distance first inner side sideline 3~
5mm.The length of described high tempreture tape is 1/2~2/3 times of the length of described groove.It is such a to be designed as the optimal of the present invention
Embodiment.
Brief description of the drawings
Fig. 1 is the structural representation of the plastic-aluminum shell deployed condition of the plastic-aluminum shell packaging lithium battery of prior art.
Fig. 2 is the deployed condition after a side of the plastic-aluminum shell of the plastic-aluminum shell packaging lithium battery of prior art is sealed twice
Structural representation.
Fig. 3 is the structural representation of the plastic-aluminum shell deployed condition of plastic-aluminum shell packaging lithium battery of the present invention
Fig. 4 is the structure of the deployed condition after a side of the plastic-aluminum shell of plastic-aluminum shell packaging lithium battery of the present invention is sealed twice
Schematic diagram.
Shown in figure：1st, plastic-aluminum shell, 1.1, groove, the 1.2, first edge sealing, the 1.3, second edge sealing, 1.4, airbag, 1.5, high
Warm gummed paper.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
It please join shown in Fig. 3 and Fig. 4, plastic-aluminum shell packaging lithium battery of the present invention includes plastic-aluminum shell 1 and battery.Described plastic-aluminum
Shell 1 is provided with the groove 1.1 for set battery core, and in this specific embodiment, described plastic-aluminum shell 1 is provided with symmetrical two
Individual groove 1.1, during heat-sealing, for plastic-aluminum shell 1 to folding up, two grooves 1.1 collectively form an appearance for being used for set battery core
Receive space.One side of described plastic-aluminum shell 1 is provided with the first edge sealing 1.2, and (i.e. the side of plastic-aluminum shell one carries out first time sealing
Edge sealing), the edge sealing 1.3 of airbag 1.4 and second (i.e. the side of plastic-aluminum shell one carries out the edge sealing of second of sealing), described airbag 1.4
Between the first edge sealing 1.2 and the second edge sealing 1.3.Side of the described plastic-aluminum shell 1 provided with the first edge sealing 1.2, which is provided with, to be had
Effect of heat insulation and the high temperature paper not reacted with the electrolyte of lithium battery, described high temperature paper are located at the first edge sealing 1.2 and
Between two edge sealing 1.3 and close to the first edge sealing 1.2.In this specific embodiment, described high temperature paper is high tempreture tape 1.5, institute
The film for the high tempreture tape 1.5 stated is Kapton, and the glutinous agent of described high tempreture tape is silicone pressure sensitive gluing agent, institute
The high tempreture tape 1.5 stated is attached on the inner surface for the side that described plastic-aluminum shell 1 is provided with the first edge sealing 1.2.Described high-temp glue
Paper 1.5 parallel to 3~5mm of sideline on the inside of the first described edge sealing 1.2 and the edge sealing of distance first, described high tempreture tape 1.5
Width is 1~1.5 times of the width of the first edge sealing 1.2, and the length of described high tempreture tape 1.5 is the length of a groove 1.1
1/2~2/3 times.
Claims (3)
1. a kind of flexible package lithium cell, including plastic-aluminum shell (1) and battery, described plastic-aluminum shell (1), which is provided with, is used for set battery
The groove (1.1) of core, a side of described plastic-aluminum shell (1) are provided with the first edge sealing (1.2), airbag (1.4) and the second edge sealing
(1.3), described airbag (1.4) is between the first edge sealing (1.2) and the second edge sealing (1.3), it is characterised in that：Described aluminium
The side that plastic housing (1) is provided with the first edge sealing (1.2) is provided with what is had effect of heat insulation and do not reacted with lithium battery electrolytes
High temperature paper, described high temperature paper is between the first edge sealing (1.2) and the second edge sealing (1.3) and close to the first edge sealing (1.2).
2. flexible package lithium cell according to claim 1, it is characterised in that：Described high temperature paper is high tempreture tape (1.5),
Described high tempreture tape (1.5) is attached on the inner surface of the side of the first edge sealing (1.2) of described plastic-aluminum shell (1).
3. flexible package lithium cell according to claim 2, it is characterised in that：Described high tempreture tape (1.5) is parallel to institute
The first edge sealing (1.2) stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948339.8A CN107742679A (en) | 2017-10-12 | 2017-10-12 | A kind of lithium battery of plastic-aluminum shell packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948339.8A CN107742679A (en) | 2017-10-12 | 2017-10-12 | A kind of lithium battery of plastic-aluminum shell packaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107742679A true CN107742679A (en) | 2018-02-27 |
Family
ID=61237432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710948339.8A Withdrawn CN107742679A (en) | 2017-10-12 | 2017-10-12 | A kind of lithium battery of plastic-aluminum shell packaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107742679A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048034A (en) * | 2019-04-01 | 2019-07-23 | 桑顿新能源科技有限公司 | Soft pack cell aluminum plastic film thermal radiation resistant encapsulating method and structure |
| CN112821007A (en) * | 2019-10-30 | 2021-05-18 | 宁德新能源科技有限公司 | Unformed battery, preparation method of battery and formation equipment |
-
2017
- 2017-10-12 CN CN201710948339.8A patent/CN107742679A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048034A (en) * | 2019-04-01 | 2019-07-23 | 桑顿新能源科技有限公司 | Soft pack cell aluminum plastic film thermal radiation resistant encapsulating method and structure |
| CN110048034B (en) * | 2019-04-01 | 2023-04-18 | 桑顿新能源科技(长沙)有限公司 | Heat radiation prevention packaging method and packaging structure for aluminum plastic film of soft-package battery cell |
| CN112821007A (en) * | 2019-10-30 | 2021-05-18 | 宁德新能源科技有限公司 | Unformed battery, preparation method of battery and formation equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180227 |