CN201397858Y - Novel square lithium ion battery capable of preventing glue overflow - Google Patents
Novel square lithium ion battery capable of preventing glue overflow Download PDFInfo
- Publication number
- CN201397858Y CN201397858Y CN2009200960481U CN200920096048U CN201397858Y CN 201397858 Y CN201397858 Y CN 201397858Y CN 2009200960481 U CN2009200960481 U CN 2009200960481U CN 200920096048 U CN200920096048 U CN 200920096048U CN 201397858 Y CN201397858 Y CN 201397858Y
- Authority
- CN
- China
- Prior art keywords
- battery
- basic unit
- adhesive tape
- lithium ion
- faced adhesive
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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 discloses a novel square lithium ion battery capable of preventing glue overflow. The battery comprises a battery cell (1), a double-faced adhesive tape (2) adhered to the top of thebattery cell, and a PTC (3) adhered to the other side of the double-faced adhesive tape. The battery is characterized in that the double-faced adhesive tape (2) comprises a first base layer (4) and asecond base layer (2), wherein the upper and the lower surfaces of the first base layer (4) are coated by adhesive layers (6, 7) respectively, and the upper and the lower surfaces of the second baselayer (5) are coated by adhesive layers (8, 9) respectively; a thermoplastic layer (10) is arranged between the adhesive layer (7) and the adhesive layer (8); and the first base layer (4) and the second base layer (5) are made of a material with the friction coefficient larger than 0.29. The material with the larger friction coefficient is adopted in the utility model as the base material of the adhesive layers, so that the coarser surfaces can achieve strong coating ability and avoid glue overflow of the double-faced adhesive tape in the lithium ion battery production process due to high temperature or long storage, thereby eliminating the pollution to a negative pole cap, the surface of the battery and a formatting device point.
Description
Technical field
The utility model relates to a kind of rectangular lithium ion battery, particularly relates to a kind of novel rectangular lithium ion battery that prevents excessive glue.
Background technology
Lithium ion battery has been widely used in mobile products such as MP3, MP4, personal digital assistant, mobile phone, digital camera, electric tool, toy, advantage such as have that voltage height, electricity capacity are big, long circulation life, memory-less effect, light weight, working range are wide.In the assembling process of battery, a kind of short two-sided tape (as Fig. 1) need be pasted in the battery top, and its effect is to prevent the both positive and negative polarity short circuit, has also played the effect of pasting PTC in later stage PACK process.Used two-sided tape comprises basic unit in the rectangular lithium ion battery at present, and the glue-line that is coated on basic unit's upper and lower surface, and described base material adopts high molecular polymer more, as PET, PP, PS etc.But the double faced adhesive tape of employing high molecular polymer base material in process of production, and glue outwards overflows easily, and anticathode cap, battery surface and formation device point all can pollute, thereby have influenced outward appearance, insulation effect and the negative pole cap of battery and contacting of equipment point; And also have the injection moulding operation in the later stage PACK process, can produce moment high temperature, cause that also the glue that overflows is bad, influence the battery outward appearance.
The utility model content
The purpose of this utility model is to provide a kind of novel rectangular lithium ion battery that prevents excessive glue, solves the problem of the excessive glue of double faced adhesive tape in battery production and packaging process.
The technical solution of the utility model is: a kind of novel rectangular lithium ion battery that prevents excessive glue, comprise battery, stick in the double faced adhesive tape at battery top and the PTC that pastes with the double faced adhesive tape opposite side, described double faced adhesive tape comprises first basic unit and second basic unit, described first basic unit and second basic unit's upper and lower surface are coated with glue-line respectively, be provided with the thermoplastic plastic layer between described first basic unit's lower surface glue-line and the second basic unit's upper surface glue-line, described first basic unit and second basic unit are a kind of coefficient of friction greater than 0.29 material.
The range of friction coefficients of described double faced adhesive tape first basic unit and second base material is 0.35-0.45.Described double faced adhesive tape first basic unit and second base material can be tissue material.Described thermoplastic plastic layer is the PC material.
The beneficial effects of the utility model are: with the base material of the big material of cotton paper or other coefficient of frictions as glue-line, its surface is more coarse, therefore the kiss-coating ability is strong, make double faced adhesive tape can Yin Gaowen in the production process of lithium ion battery or long reason of resting period cause the glue phenomenon of overflowing, thereby eliminated the pollution that anticathode cap, battery surface and formation device point cause.Because glue-line does not change, so the viscosity of adhesive tape can not be affected yet.Thermoplastic material layer between first basic unit and second basic unit has excellent electric insulation, better plays the effect that prevents the both positive and negative polarity short circuit.
Description of drawings
Fig. 1 prevents the novel rectangular lithium ion battery schematic diagram of excessive glue for the utility model;
Fig. 2 is the profile of double faced adhesive tape in the utility model lithium ion battery.
Wherein: 1---battery, 2---short two-sided tape, 3---PTC, 4---first basic unit, 5---second basic unit, 6,7,8,9---glue-line, 10---the thermoplastic plastic layer.
Embodiment
As shown in Figure 1, in the assembling process of battery, a kind of short two-sided tape 2 need be pasted in battery 1 top, is used for preventing the both positive and negative polarity short circuit, has also played the effect of stickup PTC (semistor) 3 in the later stage packaging process.The novel rectangular lithium ion battery that prevents excessive glue of the present utility model comprises battery 1, sticks in the double faced adhesive tape 2 at battery top and the PTC layer of pasting with the double faced adhesive tape opposite side 3.As shown in Figure 2, double faced adhesive tape 2 comprises first basic unit 4 and second basic unit 5, described first basic unit 4 and second basic unit, 5 upper and lower surfaces are coated with glue-line 6 respectively, 7,8,9, the glue-line 7 of described first basic unit 4 and second basic unit 5, be provided with the thermoplastic plastic layer between 8, first basic unit 4 and second basic unit, 5 materials are tissue material.The thermoplastic plastic layer is preferably the PC layer.Also have release liners on first basic unit of double faced adhesive tape, during use, peel off release liners and can be affixed on the battery top.First basic unit 4 and second basic unit, 5 materials can also for other coefficient of frictions greater than 0.29 material.
Adopt tissue material to replace polymeric material as basic unit, its coefficient of friction is big, and it is strong to tie up the glue ability, can effectively avoid the glue phenomenon of overflowing in the production process of battery, and is simple and effective in actual production, and strong operability has been improved the outward appearance and the inherent quality of battery greatly.
Claims (4)
1. the novel rectangular lithium ion battery of the glue that prevents to overflow, comprise battery (1), stick in the double faced adhesive tape (2) at battery top and the PTC (3) that pastes with the double faced adhesive tape opposite side, it is characterized in that, described double faced adhesive tape (2) comprises first basic unit (4) and second basic unit (5), described first basic unit (4) is coated with glue-line (6 respectively with second basic unit (5) upper and lower surface, 7,8,9), be provided with thermoplastic plastic layer (10) between described glue-line (7) and the glue-line (8), described first basic unit (4) and second basic unit (5) are a kind of coefficient of friction greater than 0.29 material.
2. according to the described novel rectangular lithium ion battery that prevents excessive glue of claim 1, it is characterized in that the range of friction coefficients of described double faced adhesive tape (2) first basic units (4) and second basic unit (5) material is 0.35-0.45.
3. according to the described novel rectangular lithium ion battery that prevents excessive glue of claim 1, it is characterized in that described double faced adhesive tape (2) first basic units (4) and second basic unit (5) material are tissue material.
4. according to the described novel rectangular lithium ion battery that prevents excessive glue of claim 1, it is characterized in that described thermoplastic plastic layer (10) is the PC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200960481U CN201397858Y (en) | 2009-03-26 | 2009-03-26 | Novel square lithium ion battery capable of preventing glue overflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200960481U CN201397858Y (en) | 2009-03-26 | 2009-03-26 | Novel square lithium ion battery capable of preventing glue overflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397858Y true CN201397858Y (en) | 2010-02-03 |
Family
ID=41620385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200960481U Expired - Fee Related CN201397858Y (en) | 2009-03-26 | 2009-03-26 | Novel square lithium ion battery capable of preventing glue overflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397858Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104620422A (en) * | 2012-09-12 | 2015-05-13 | Nec能源元器件株式会社 | Electrode roll and method for producing electrode roll |
| CN110023434A (en) * | 2016-11-22 | 2019-07-16 | 株式会社寺冈制作所 | Battery adhesive tape |
-
2009
- 2009-03-26 CN CN2009200960481U patent/CN201397858Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104620422A (en) * | 2012-09-12 | 2015-05-13 | Nec能源元器件株式会社 | Electrode roll and method for producing electrode roll |
| EP2897199A4 (en) * | 2012-09-12 | 2016-05-18 | Nec Energy Devices Ltd | Electrode roll and method for producing electrode roll |
| US10424808B2 (en) | 2012-09-12 | 2019-09-24 | Envision Aesc Energy Devices, Ltd. | Electrode roll and manufacturing method for electrode roll |
| CN110023434A (en) * | 2016-11-22 | 2019-07-16 | 株式会社寺冈制作所 | Battery adhesive tape |
| CN110023434B (en) * | 2016-11-22 | 2021-10-26 | 株式会社寺冈制作所 | Adhesive tape for battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20100326 |