CN204793088U - Ultra -thin lithium cell - Google Patents
Ultra -thin lithium cell Download PDFInfo
- Publication number
- CN204793088U CN204793088U CN201520561529.0U CN201520561529U CN204793088U CN 204793088 U CN204793088 U CN 204793088U CN 201520561529 U CN201520561529 U CN 201520561529U CN 204793088 U CN204793088 U CN 204793088U
- Authority
- CN
- China
- Prior art keywords
- compound
- lithium cell
- ultra
- film
- thickness
- 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.)
- Active
Links
Classifications
-
- 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
Abstract
The utility model belongs to the technical field of the lithium cell, the utility model discloses an ultra -thin lithium cell, including encapsulation two -layer compound PP (polypropylene) membrane together, be equipped with the diaphragm between two -layer compound PP membrane, wherein the compound PP membrane of one deck is to stacking gradually aluminium foil and positive active material between the diaphragm, and the compound PP membrane of another layer is to stacking gradually copper foil and negative active material between the diaphragm, the welding of anodal utmost point ear is on the aluminium foil and stretch out compound PP membrane, and negative pole utmost point ear welds on the copper foil and stretches out compound PP membrane. Compare current lithium cell, the utility model discloses a lithium cell is thinner, can adapt to to tend to more and more thinner electronic product demand, and the utility model discloses can free bending, can adapt to current prevailing intelligent wearing equipment, and utilize the utility model discloses can make the product such as different shapes such as square, circular, oval or other dysmorphism as required.
Description
Technical field
The invention belongs to technical field of lithium batteries, be specifically related to a kind of ultra-thin lithium cell.
Background technology
Lithium battery has the advantages such as capacity is high, volume is little, lightweight, in a lot of industry extensive use.But along with the development of science and technology, a lot of electronic product is towards the scraps of paper, ultrathin development, but lithium battery is the thinnest at present can only accomplish 0.6mm, considerably beyond the thickness of printing paper.Meanwhile, various Intelligent worn device comes into vogue, and traditional lithium battery is also not enough to the free bend adapting to these equipment.
Summary of the invention
For achieving the above object, the ultra-thin lithium cell of the present invention's design, is characterized in that: comprise the two-layer compound PP film be packaged together, between two-layer compound PP film, be provided with barrier film; Wherein stack gradually aluminium foil and positive active material between one deck compound PP film to barrier film, between another layer of compound PP film to barrier film, stack gradually Copper Foil and negative electrode active material; Positive pole ear to be welded on aluminium foil and to stretch out compound PP film, and negative lug to be welded on Copper Foil and to stretch out compound PP film.
Preferably, the thickness of described compound PP film is 10 μm ~ 20 μm.
Preferably, the thickness of described aluminium foil is 6 μm ~ 12 μm.
Preferably, the thickness of described positive active material is 2 μm ~ 10 μm.
Preferably, the thickness of described Copper Foil is 4 μm ~ 8 μm.
Preferably, the thickness of described negative electrode active material is 2 μm ~ 10 μm.
Preferably, the thickness of described barrier film is 6 μm ~ 12 μm.
Preferred further, described barrier film is polyalkene diaphragm.
Preferably, the thickness of described positive pole ear is 10 μm ~ 20 μm.
Preferably, the thickness of described negative lug is 10 μm ~ 20 μm.
The invention has the beneficial effects as follows: compare existing lithium battery, lithium battery of the present invention is thinner, can adapt to be tending towards more and more thinner electronic product demand, and the present invention can free bend, can adapt to the Intelligent worn device of current popular; And utilize the present invention can obtain such as square, circular, oval or other difform products such as special-shaped as required.
Accompanying drawing explanation
Fig. 1 is the structural representation of ultra-thin lithium cell of the present invention.
Fig. 2 is encapsulating structure schematic diagram of the present invention.
Embodiment
Below by Fig. 1 and Fig. 2 and the mode enumerating embodiment more of the present invention; be described in further detail technical scheme of the present invention (comprising optimal technical scheme), any technical characteristic once in embodiment and any technical scheme all do not limit the scope of the invention.
As depicted in figs. 1 and 2, the ultra-thin lithium cell manufacture method of the present invention's design, comprises the following steps:
One) positive and negative plate is prepared
A, prepare positive plate
1) by thickness be the rectangle that the compound PP film 1 of 15 μm is cut into 52mm*120mm, 8 μm of thick aluminium foils 2 be cut into the rectangle of 44mm*72mm; Adopt the tape casting or dry method by the outline of described aluminium foil and described compound PP film 1 compound, and respectively reserve the first wide seal location 101 of 4mm on aluminium foil 2 three limits wherein, and the compound PP film limit of the correspondence of remainder is also reserved the wide pre-seal location 103 of 4mm; Then the compound PP film posting aluminium foil is put into vacuum drying chamber and vacuumize drying;
2) be coated with 5 μm of thick positive active materials 3 on the surface of dried aluminium foil 2, and angle surface 3mm*5mm on aluminium foil 2 side is not coated with stays white, use for next step welding positive pole ear 4;
3) again put into vacuum drying chamber, vacuumize the solvent in dry removing positive active material;
4) at blank space welding positive pole ear 4, and clad welded position forms positive plate;
B, prepare negative plate
1) by thickness be the rectangle that the compound PP film 1 of 15 μm is cut into 52mm*120mm, 8 μm of thick Copper Foils 5 be cut into the rectangle of 44mm*72mm; Adopt the tape casting or dry method by the outline of described Copper Foil and described compound PP film 1 compound, and respectively reserve the first wide seal location 101 of 4mm on Copper Foil 5 three limits wherein, and the compound PP film limit of the correspondence of remainder is also reserved the wide pre-seal location 103 of 4mm; Then the compound PP film posting Copper Foil is put into vacuum drying chamber and vacuumize drying;
2) be coated with 5 μm of thick negative electrode active materials 6 on the surface of dried Copper Foil 5, and angle surface 3mm*5mm on Copper Foil 2 side is not coated with stays white, use for next step welding negative lug 7;
3) again put into vacuum drying chamber, vacuumize the solvent in dry removing negative electrode active material;
4) in blank space welding negative lug 7, and clad welded position forms negative plate;
Two) between positive and negative plate, put into barrier film 8,170 DEG C ~ 210 DEG C, utilized by the first seal location 101 under 0.3MPa ~ 0.6MPa heat sealing machine by the encapsulation of stacked for order positive plate, barrier film 8 and negative plate;
Three) vacuumize, injects the electrolyte of 0.2g from pre-seal location 103, one 170 DEG C ~ 210 DEG C, encapsulate pre-seal location 103 under 0.3MPa ~ 0.6MPa, adopt constant-current constant-voltage charging mode to carry out charging to battery to change into, electric current is 0.2mA, and voltage is 3.95V, and binding hours is 12 hours;
Four) 170 DEG C ~ 210 DEG C, utilize vacuum sealer to carry out vacuumizing under encapsulation pressure 0.3MPa ~ 0.6MPa, vacuum values-0.08MPa ~-0.1MPa and encapsulate the second seal location 102.
Just for convenience, not specific implication, they are all seal locations, and after making battery, the width of seal location is 4mm ~ 6mm for first seal location 101 and the second seal location 102.
As shown in Figure 1, the ultra-thin lithium cell of the present invention's design, comprises the two-layer compound PP film 1 be packaged together, between two-layer compound PP film 1, is provided with barrier film 8; Wherein stack gradually aluminium foil 2 and positive active material 3 between one deck compound PP film 1 to barrier film 8, between another layer of compound PP film 1 to barrier film 8, stack gradually Copper Foil 5 and negative electrode active material 6; Positive pole ear weldering 4 to be connected on aluminium foil 2 and to stretch out compound PP film 1, and negative lug 7 to be welded on Copper Foil 5 and to stretch out compound PP film 1.
Preferably, the thickness of described compound PP film 1 is 10 μm ~ 20 μm.
Preferably, the thickness of described aluminium foil 2 is 6 μm ~ 12 μm.
Preferably, the thickness of described positive active material 3 is 2 μm ~ 10 μm.
Preferably, the thickness of described Copper Foil 5 is 4 μm ~ 8 μm.
Preferably, the thickness of described negative electrode active material 6 is 2 μm ~ 10 μm.
Preferably, the thickness of described barrier film 8 is 6 μm ~ 12 μm.
Preferred further, described barrier film is polyalkene diaphragm.
Preferably, the thickness of described positive pole ear 4 is 10 μm ~ 20 μm.
Preferably, the thickness of described negative lug 7 is 10 μm ~ 20 μm.
Claims (10)
1. a ultra-thin lithium cell, is characterized in that: comprise the two-layer compound PP film be packaged together, between two-layer compound PP film, be provided with barrier film; Wherein stack gradually aluminium foil and positive active material between one deck compound PP film to barrier film, between another layer of compound PP film to barrier film, stack gradually Copper Foil and negative electrode active material; Positive pole ear to be welded on aluminium foil and to stretch out compound PP film, and negative lug to be welded on Copper Foil and to stretch out compound PP film.
2. ultra-thin lithium cell according to claim 1, is characterized in that: the thickness of described compound PP film is 10 μm ~ 20 μm.
3. ultra-thin lithium cell according to claim 1, is characterized in that: the thickness of described aluminium foil is 6 μm ~ 12 μm.
4. ultra-thin lithium cell according to claim 1, is characterized in that: the thickness of described positive active material is 2 μm ~ 10 μm.
5. ultra-thin lithium cell according to claim 1, is characterized in that: the thickness of described Copper Foil is 4 μm ~ 8 μm.
6. ultra-thin lithium cell according to claim 1, is characterized in that: the thickness of described negative electrode active material is 2 μm ~ 10 μm.
7. ultra-thin lithium cell according to claim 1, is characterized in that: the thickness of described barrier film is 6 μm ~ 12 μm.
8. the ultra-thin lithium cell according to claim 1 or 7, is characterized in that: described barrier film is polyalkene diaphragm.
9. ultra-thin lithium cell according to claim 1, is characterized in that: the thickness of described positive pole ear is 10 μm ~ 20 μm.
10. ultra-thin lithium cell according to claim 1, is characterized in that: the thickness of described negative lug is 10 μm ~ 20 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520561529.0U CN204793088U (en) | 2015-07-30 | 2015-07-30 | Ultra -thin lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520561529.0U CN204793088U (en) | 2015-07-30 | 2015-07-30 | Ultra -thin lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204793088U true CN204793088U (en) | 2015-11-18 |
Family
ID=54533080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520561529.0U Active CN204793088U (en) | 2015-07-30 | 2015-07-30 | Ultra -thin lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204793088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346779A (en) * | 2018-09-19 | 2019-02-15 | 惠州亿纬锂能股份有限公司 | Battery core main body and preparation method thereof, slimline battery and preparation method thereof |
-
2015
- 2015-07-30 CN CN201520561529.0U patent/CN204793088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346779A (en) * | 2018-09-19 | 2019-02-15 | 惠州亿纬锂能股份有限公司 | Battery core main body and preparation method thereof, slimline battery and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105355962B (en) | A kind of preparation method of takeup type laminated batteries | |
| CN102683752B (en) | Stacked lithium ion power battery and manufacturing method thereof | |
| CN209929401U (en) | Utmost point ear and lithium ion battery with dysmorphism utmost point ear is glued | |
| CN102969539A (en) | Ultra-thin lithium ion secondary battery | |
| CN209472062U (en) | A kind of lithium ion battery with composite negative pole | |
| CN102623667A (en) | Soft package thin and ultrathin cell structure and manufacturing method thereof | |
| CN109768337A (en) | The chargeable button-shaped soft bag lithium ionic cell of one kind and processing method | |
| CN211088322U (en) | Lithium battery structure | |
| CN108365271A (en) | A kind of integrated flexible solid lithium ion battery and preparation method thereof | |
| CN204793088U (en) | Ultra -thin lithium cell | |
| CN202917600U (en) | Aluminum-plastic packed high-power lithium ion battery | |
| CN206558627U (en) | A kind of coiled battery | |
| CN102244290A (en) | Ultrathin lithium ion battery | |
| CN202094230U (en) | Ultrathin polymer lithium ion battery | |
| CN102694210B (en) | Zinc-nickel secondary sealed square alkaline battery and manufacturing method thereof | |
| CN209544535U (en) | A kind of L-type stack type lithium ion battery | |
| CN204760490U (en) | Lithium ion battery cell is used to basic station of soft -packing polymer | |
| CN106356569A (en) | Winding type battery and manufacturing method thereof | |
| CN204243090U (en) | A kind of high-performance power lithium-ion battery | |
| CN105895965A (en) | Fabrication method of ultra-thin lithium battery | |
| CN201766116U (en) | Coiled flexible package lithium ion battery | |
| CN110661035A (en) | Single battery cell, flexible battery pack and preparation method of flexible battery pack | |
| CN202339947U (en) | Ultrathin lithium ion battery | |
| CN201673968U (en) | Miniature polymer lithium ion battery with dissymmetrical assembly structure | |
| CN205004378U (en) | Flexible package lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430206, Hubei, East Lake hi tech Zone, Wuhan hi tech Avenue, No. 999, future city, A4 building, 10 floor Patentee after: WUHAN MEIGE TECHNOLOGY CO., LTD. Address before: 430206, Hubei, East Lake hi tech Zone, Wuhan hi tech Avenue, No. 999, future city, A4 building, 10 floor Patentee before: FLEXTECH COMPANY |