CN205900714U - Ultra -thin lithium cell of card formula - Google Patents
Ultra -thin lithium cell of card formula Download PDFInfo
- Publication number
- CN205900714U CN205900714U CN201620855074.8U CN201620855074U CN205900714U CN 205900714 U CN205900714 U CN 205900714U CN 201620855074 U CN201620855074 U CN 201620855074U CN 205900714 U CN205900714 U CN 205900714U
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- China
- Prior art keywords
- layer
- packaging film
- utmost point
- point ear
- corrosive
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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
Abstract
The utility model provides an ultra -thin lithium cell of card formula, including the battery core, packaging film and utmost point ear, the packaging film is used for cladding battery core and has fine cementability with utmost point ear, it is outer including plastics, middle aluminium foil layer and inlayer heat -seal layer, plastics are outer to pass through the compound back of adhesive linkage dry -type with middle aluminium foil layer, nanostructured surface layer preserved handle accepts orders, inlayer heat -seal layer is modified polyethylene of maleic anhydride or maleic anhydride modified polypropylene, when compound, at first preheat nanometer anticorrosive coating surface, reach 100 DEG C as nanometer anticorrosive coating surface temperature 180 DEG C the time compound, utmost point ear metal strip is in the same place with the direct heat -seal of packaging film after being two -sided nanometer preserved handle. Utmost point ear metal strip is very thin, can be for within 20 mu, and nanometer preserved handle is only made on the surface, and two -layer utmost point ear is not glued about not needing. The packaging film direct with the heat -seal of utmost point ear metal strip together, greatly reduced the cost, seal strength is high, efficiency has simply been improved in the location when utmost point ear uses moreover, has reduced the loss of lithium cell.
Description
Technical field
This utility model is related to a kind of lithium battery, particularly a kind of card type ultra-thin lithium battery.
Background technology
Traditional number, bluetooth, electronic cigarette, energy storage, the lithium battery of big low-power, its flexible package aluminum-plastic composite membrane is both needed to
More than cold stamping shaped depth 1mm, and these battery capacities are larger, and can generate heat when discharge and recharge and use generation high temperature etc., this
The structure design that kind of cold punching depth performance and resistance to elevated temperatures determine existing lithium battery flexible packaging film cannot meet card type ultra-thin
The packaging of lithium battery.Traditional lug metal tape is all relatively thick, and is designed with upper and lower two-layer tab, and this will have a strong impact on electricity
The gross thickness in pond and energy density.
Content of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art it is proposed that a kind of making is simple, close
Envelope is reliable, inexpensive card type ultra-thin lithium battery.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of card type ultra-thin lithium
Battery, including battery, packaging film and lug, is characterized in: described packaging film includes pet plastic outer layer, middle aluminium foil layer
With internal layer hot sealing layer, after pet plastic outer layer is combined by adhesive linkage dry type with middle aluminium foil layer, do at single face nano anti-corrosive
Reason, forms nano anti-corrosive layer in the inner surface of middle aluminium foil layer, and internal layer hot sealing layer adopts copolymerization curtain coating or list to squeeze curtain coating and nanometer
Anticorrosive coat is compounded on nano anti-corrosive layer；Lug bonding jumper is two-sided to be equipped with nano anti-corrosive layer and is welded with battery；Weld pole
The battery of ear bonding jumper is placed between two panels packaging film, is formed around sealing edge sealing, double-face nanometer antiseptic lug gold
Belong to bar and the direct heat-sealing of packaging film.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, packaging film
Pet plastic outer layer thickness is 12-15nm, thickness of adhibited layer is 3-5 nm, middle aluminium foil layer thickness is 20-30 nm, internal layer heat-sealing
Thickness degree is 15-30 nm.
The technical problems to be solved in the utility model can also be come to realize further by the following technical programs, and card form surpasses
The gross thickness of thin lithium battery is not more than 1mm.
Because card-type lithium battery is very thin, gross thickness is less than 1mm, area and very little, if using the pole with tab
Ear, is likely to result in two tabs overlaps, causes poor sealing during closedtop.This utility model compared with prior art, to packaging
Film is optimized process, and lug bonding jumper is very thin, can be within 20, and surface is only made nano anti-corrosive and processed it is not necessary to upper and lower two-layer
Tab.Packaging film directly with lug bonding jumper heat-sealing, greatly reduce cost, sealing intensity height, and in lug
Position simple during use, improve efficiency, decrease the loss of lithium battery.
Brief description
Fig. 1 is structure diagram of the present utility model.
Specific embodiment
A kind of card type ultra-thin lithium battery, gross thickness is not more than 1mm.Including battery 2, packaging film 1 and lug 3, described
Packaging film be used for coating battery and having fine cementability with lug, including pet plastic outer layer, middle aluminium foil layer and internal layer heat
Sealing, after pet plastic outer layer is combined by adhesive linkage dry type with middle aluminium foil layer, does single face nano anti-corrosive and processes, in centre
The inner surface of aluminium foil layer forms nano anti-corrosive layer, and internal layer hot sealing layer is maleic anhydride modified polyethylene or maleic anhydride modified poly- third
Alkene, is combined with nano anti-corrosive layer using copolymerization curtain coating or single curtain coating of squeezing, compound tense, first nano anti-corrosive layer surface is carried out pre-
Heat, is combined when nano anti-corrosive layer surface temperature reaches 100 DEG C -180 DEG C；
Lug bonding jumper is welded with battery after doing double-face nanometer preservative treatment；
The battery welding lug bonding jumper is placed between two panels packaging film, carries out sealing edge sealing process, receive two-sided
The antiseptic lug bonding jumper of rice and the direct heat-sealing of packaging film.
Packaging film compound tense, is preheated using hot-rolling mode to described nano anti-corrosive layer surface.
The pet plastic outer layer thickness of packaging film is 12-15nm, thickness of adhibited layer is 3-5 nm, middle aluminium foil layer thickness is
20-30 nm, internal layer hot sealing layer thickness are 15-30 nm.
This utility model substantially adopts manual work, (also being difficult to automatization at present), and pet plastic outer layer can be most common
Very cheap biaxial stretch-formed pet.Middle aluminium foil layer can use generic needle free hole aluminium foil, price within 20,000 yuan/t,
Without the cold stamping shaped aluminum using high request, its price is in 50,000 yuan/t.Adhesive linkage can be using common bi-component bonding
Agent, 20,000 yuan/t of price about, without the bonding agent using cold stamping shaped high performance requirements.Cost substantially reduces.
The battery total capacity of this utility model card type ultra-thin lithium battery < is generated heat very during 100ma, discharge and recharge and use
Little.
Claims (3)
1. a kind of card type ultra-thin lithium battery, including battery, packaging film and lug it is characterised in that: described packaging film bag
Include pet plastic outer layer, middle aluminium foil layer and internal layer hot sealing layer, it is multiple that pet plastic outer layer and middle aluminium foil layer pass through adhesive linkage dry type
After conjunction, do single face nano anti-corrosive and process, form nano anti-corrosive layer in the inner surface of middle aluminium foil layer, internal layer hot sealing layer is using altogether
Conflux is prolonged or single curtain coating of squeezing is compounded on nano anti-corrosive layer with nano anti-corrosive layer；Lug bonding jumper is two-sided to be equipped with nano anti-corrosive layer
And weld with battery；The battery welding lug bonding jumper is placed between two panels packaging film, is formed around sealing edge sealing, two-sided
The lug bonding jumper that nano anti-corrosive is processed and the direct heat-sealing of packaging film.
2. card type ultra-thin lithium battery according to claim 1 it is characterised in that: the pet plastic outer layer thickness of packaging film
For 12-15nm, thickness of adhibited layer be 3-5 nm, middle aluminium foil layer thickness be 20-30 nm, internal layer hot sealing layer thickness be 15-30
nm.
3. card type ultra-thin lithium battery according to claim 1 it is characterised in that: the gross thickness of card type ultra-thin lithium battery
It is not more than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620855074.8U CN205900714U (en) | 2016-08-09 | 2016-08-09 | Ultra -thin lithium cell of card formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620855074.8U CN205900714U (en) | 2016-08-09 | 2016-08-09 | Ultra -thin lithium cell of card formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205900714U true CN205900714U (en) | 2017-01-18 |
Family
ID=57781328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620855074.8U Active CN205900714U (en) | 2016-08-09 | 2016-08-09 | Ultra -thin lithium cell of card formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205900714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10950912B2 (en) | 2017-06-14 | 2021-03-16 | Milwaukee Electric Tool Corporation | Arrangements for inhibiting intrusion into battery pack electrical components |
-
2016
- 2016-08-09 CN CN201620855074.8U patent/CN205900714U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10950912B2 (en) | 2017-06-14 | 2021-03-16 | Milwaukee Electric Tool Corporation | Arrangements for inhibiting intrusion into battery pack electrical components |
| US11031651B2 (en) | 2017-06-14 | 2021-06-08 | Milwaukee Electric Tool Corporation | Arrangements for inhibiting intrusion into battery pack electrical components |
| US11777151B2 (en) | 2017-06-14 | 2023-10-03 | Milwaukee Electric Tool Corporation | Arrangements for inhibiting intrusion into battery pack electrical components |
| US11916203B2 (en) | 2017-06-14 | 2024-02-27 | Milwaukee Electric Tool Corporation | Arrangements for inhibiting intrusion into battery pack electrical components |
| US11923514B2 (en) | 2017-06-14 | 2024-03-05 | Milwaukee Electric Tool Corporation | Arrangements for inhibiting intrusion into battery pack electrical components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 222000 Guangshen science and technology innovation base, No.1 East Road, Dongfang Avenue, Lianyungang Economic and Technological Development Zone, Lianyungang City, Jiangsu Province Patentee after: Jiangsu delixin Electronic Technology Co.,Ltd. Address before: 222000 Guangshen science and technology innovation base, No.1 East Road, Dongfang Avenue, Lianyungang Economic and Technological Development Zone, Lianyungang City, Jiangsu Province Patentee before: LIANYUNGANG DELIXIN ELECTRONIC TECHNOLOGY Co.,Ltd. |