CN203760574U - Polymer lithium ion battery - Google Patents
Polymer lithium ion battery Download PDFInfo
- Publication number
- CN203760574U CN203760574U CN201320643230.0U CN201320643230U CN203760574U CN 203760574 U CN203760574 U CN 203760574U CN 201320643230 U CN201320643230 U CN 201320643230U CN 203760574 U CN203760574 U CN 203760574U
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- Prior art keywords
- plastic layer
- baffle
- angle
- ion battery
- battery
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- Expired - Lifetime
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 33
- 229920000642 polymer Polymers 0.000 title claims abstract description 33
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title abstract 4
- 230000001154 acute effect Effects 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 23
- 238000002347 injection Methods 0.000 abstract description 12
- 239000007924 injection Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 5
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 15
- 210000002808 connective tissue Anatomy 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 4
- 206010017076 Fracture Diseases 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The utility model particularly relates to a polymer lithium ion battery. The polymer lithium ion battery comprises a battery core and a protective plate, wherein a positive lug and a negative lug of the battery core are connected with the protective plate and the protective plate is connected with an output piece. The polymer lithium ion battery is characterized by also comprising a top plastic layer by which the protective plate, the positive lug and the negative lug are wrapped. Due to the arrangement of the top plastic layer, troublesome work procedures of gluing insulating tapes for multiple times are omitted, and the one-step plastic injection molding is achieved and is beneficial to rapid production; uneven parts of the protective plate are filled to be flat, so that the appearance is optimized; the thickness of plastic injection can be controlled correctly, so that various requirements for assembly with a machine housing are satisfied; a lead is fixed by the top plastic layer, so that the risk of lead breakage is reduced and the quality is good.
Description
[technical field]
The utility model relates to polymer Li-ion battery, especially output lead or FPC Soft Roll polymer Li-ion battery.
[background technology]
In recent years, along with the develop rapidly of information technology, the update of electronic product is very fast.The continuous release of intelligent machine, makes the power consumption of machine also increasing.
In order to increase the flying power of machine, need to remove as possible to increase the capacity of battery.Under identical volume, except material and technology that adopt to upgrade, to come raising capacity, another method is by improving structure, battery core is taken up space reach maximization to carry out raising capacity.Glue frame originally adds the detachable battery of injection moulding, because its glue frame takes up space greatly, and needs label parcel to take thickness, so capacity is less than normal; The internal battery that Soft Roll PACK forms does not add glue frame, need not wrap label yet, is more and more applied to intelligent machine field.
As depicted in figs. 1 and 2, at present, internal battery comprises battery core 1 and baffle 2, battery core 1 comprises volume core and adventitia, volume core comprises positive plate, negative plate, anode ear 21 and negative electrode lug 22, anode ear 21, negative electrode lug S22 are connected respectively positive plate, negative plate, and adventitia wraps volume core and exposes anode ear and negative electrode lug at the top of battery core; The anode ear 21 of battery core S1 and negative electrode lug 22 are welded on baffle 2, and baffle 2 is connected with output 3 (output is wire or FPC).As shown in Figure 3, for safety, can adopt insulating tape 4 that baffle and the anode ear 21, the negative electrode lug 22 that expose are carried out to multilayer parcel.
There is following defect in the battery of said structure:
1, adopt insulating tape that baffle and the anode ear exposing, negative electrode lug are carried out to multilayer parcel, complex procedures, efficiency is low;
2, insulating tape is normally transparent, appearance poor;
3, because baffle is provided with components and parts and be welded with anode ear, negative electrode lug, cause the front-back of baffle to occur being uneven, cause after encapsulate before and after out-of-flatness;
4,, when wire or FPC under tension, easily rupture in wire or FPC and baffle welding position;
5, adopt insulating tape to carry out multilayer parcel, be difficult to hold the thickness after parcel, be unfavorable for controlling thickness;
6, soft-package battery dimensional tolerance large (the best tolerance of length and width is+0/-0.8mm at present): size battery less than normal is too large in shell intermediate gap, not attractive in appearance.
[utility model content]
The technical problems to be solved in the utility model is to provide a kind of polymer Li-ion battery, can optimize quick and precisely production of outward appearance, utilization and quality good.
Above-mentioned technical problem solves by the following technical programs:
A polymer Li-ion battery, comprises battery core and baffle, and the anode ear of battery core and negative electrode lug are connected on baffle, connects output on baffle; It is characterized in that, also comprise top plastic layer, top plastic layer wraps baffle, anode ear and negative electrode lug.
The utility model, by top plastic layer is set, has saved the loaded down with trivial details operation of repeatedly pasting insulating tape, and an injecting glue moulding, is beneficial to quick production; Fill and lead up baffle place uneven, optimize outward appearance; Injection moulding thickness can relatively accurately be controlled, and meets the various matching requirements with casing; Top plastic layer is fixed wire, reduces wire fracture risk, and quality is good.
Further scheme is between top plastic layer and baffle, anode ear, negative electrode lug, to be provided with top insulating tape.This programme has been strengthened fail safe.
Further scheme is, also comprises right side plastic layer and left side plastic layer, and right side plastic layer and left side plastic layer wrap respectively the left and right sides of battery core.This programme is applicable to being applied to very thin (2.5mm is following) can not folding side battery.
Further scheme is, also comprises bottom plastic layer, and bottom plastic layer wraps the bottom of battery core.This programme is applicable to being applied to thicker battery, and surrounding injection moulding can reduce battery length and width dimensional tolerance.
Further scheme is, the outer shape of right side plastic layer and left side plastic layer is: outside be up and down fillet, or outside is oblique angle, outside is perigon angle, or outside is wedge angle, or outside is right angle, and the radius of described fillet is from 0.5mm to 3mm, the angle at described oblique angle is from 60 ° to 120 °, and the drift angle at described oblique angle is acute angle or fillet.
Another kind of scheme is, a kind of polymer Li-ion battery, comprises battery core and baffle, and the anode ear of battery core and negative electrode lug are connected on baffle, connect output on baffle; It is characterized in that, also comprise whole plastic layer, whole plastic layer wraps battery core and baffle.This programme is applicable to being applied to the battery that hardness is higher, can reduce equally battery length and width dimensional tolerance.
Further scheme is, the outer shape of the left and right sides of described whole plastic layer is: outside be up and down fillet, or outside is oblique angle, outside is perigon angle, or outside is wedge angle, or outside is right angle, and the radius of described fillet is from 0.5mm to 3mm, the angle at described oblique angle is from 60 ° to 120 °, and the drift angle at described oblique angle is acute angle or fillet.
Further scheme is between whole plastic layer and baffle, anode ear, negative electrode lug, to be provided with top insulating tape.This programme has been strengthened fail safe.
[accompanying drawing explanation]
Fig. 1 is the connection diagram of the angle from top to bottom of battery core and baffle;
Fig. 2 is the connection diagram of the angle from the bottom up of battery core and baffle;
Fig. 3 is the structural representation of current internal battery;
Fig. 4 is the structural representation of the polymer Li-ion battery of embodiment mono-;
Fig. 5 is the battery core of embodiment bis-and the connection diagram of baffle;
Fig. 6 is the structural representation of the polymer Li-ion battery of embodiment bis-;
Fig. 7 is the labeled structural representation of the polymer Li-ion battery of Fig. 6;
Fig. 8 to Figure 11 is four kinds of structural representations of outer shape of both sides plastic layer of the polymer Li-ion battery of embodiment bis-;
Figure 12 is the structural representation of the polymer Li-ion battery of embodiment tri-;
Figure 13 to Figure 18 is six kinds of structural representations of outer shape of both sides plastic layer of the polymer Li-ion battery of embodiment tri-;
Figure 19 is the structural representation of the polymer Li-ion battery of embodiment tetra-.
[embodiment]
Embodiment mono-
Shown in Fig. 1, Fig. 2 and Fig. 4, a kind of polymer Li-ion battery, comprises battery core and 1 baffle 2, and the anode ear 21 of battery core and negative electrode lug 22 are connected on baffle 2, connect output 3 on baffle 2, and output 3 is wire; Also comprise top plastic layer 5, top plastic layer 5 wraps baffle 2, anode ear 21 and negative electrode lug 22.
For safety, between top plastic layer 5 and baffle 2, anode ear 21, negative electrode lug 22, be provided with top insulating tape.Owing to there being top plastic layer, the use amount of top insulating tape can be seldom.In addition, in the bonding place of the adventitia of battery core, stick insulating cement, conventionally, in the bonding place of the adventitia of battery core, be distributed in top, the both sides of battery, because the protection of top plastic layer is arranged at top, generally just in the both sides of battery core, stick sidepiece plastic layer.
The manufacture method of above-mentioned polymer Li-ion battery, comprises the following steps:
1) anode ear 21 of output 3, battery core 1 and negative electrode lug 22 are welded on baffle 2;
2) with top insulating tape, wrap baffle 2, anode ear 21 and negative electrode lug 22, obtain the battery before injection moulding;
3) put the battery before injection moulding into injection molding machine, an injecting glue forms top plastic layer 5 thereon, and top plastic layer 5 wraps baffle 2, anode ear 21 and negative electrode lug 22.
Further comprise 4) the both sides of battery core part, stick respectively sidepiece plastic layer 41,42.
Above method is simplified the loaded down with trivial details operation of repeatedly pasting insulating tape, an injecting glue moulding; Fill and lead up baffle place uneven, optimize outward appearance, injection moulding thickness can relatively accurately be controlled, and meets the various matching requirements with casing; Top plastic layer is fixed wire, reduces wire fracture risk; The method is applicable to thinner (2.0mm-3.0mm) battery, and top plastic layer can reduce and too much causes baffle place super thick because of top insulating tape; The method is applicable to the less demanding battery of width tolerance, and side is without injecting glue; The method is applicable to battery core tail without injecting glue.
Embodiment bis-
Shown in Fig. 5, Fig. 6 and Fig. 7, in some occasions, require cell thickness thinner (2.5mm is following), therefore, in battery, after the adventitia edge of battery core is bonding, do not carry out flanging; For this, need, the present embodiment provides a kind of polymer Li-ion battery, comprises battery core 301 and baffle 302, and the anode ear 311 of battery core 301 and negative electrode lug 312 are connected on baffle 302, connect output 303 on baffle 302, and output is wire; Also comprise top plastic layer 341, right side plastic layer 342 and left side plastic layer 343, top plastic layer 341 wraps baffle 302, anode ear 311 and negative electrode lug 312, and right side plastic layer 342 and left side plastic layer 343 wrap respectively the left and right sides of battery core 301.For safety, between top plastic layer 341 and baffle 302, anode ear 311, negative electrode lug 312, be provided with top insulating tape.For the attractive in appearance and description of product, labelled at the upper surface of battery, this label covers the inner side of top plastic layer 341, right side plastic layer 342 and left side plastic layer 343.
The manufacture method of above-mentioned polymer Li-ion battery, comprises the following steps:
1) anode ear of output 303, battery core 311 and negative electrode lug 312 are welded on baffle 302;
2) with top insulating tape, wrap baffle 302, anode ear 311 and negative electrode lug 312, obtain the battery before injection moulding;
3) put the battery before injection moulding into injection molding machine; an injecting glue forms top plastic layer 341, right side plastic layer 342 and left side plastic layer 343 thereon; top plastic layer 341 wraps top insulating cement, baffle 302, anode ear 311 and negative electrode lug 312, and right side plastic layer 342 and left side plastic layer 343 wrap respectively the left and right sides of battery core 301.
Said method is simplified the loaded down with trivial details operation of repeatedly pasting insulating tape, an injecting glue moulding; Fill and lead up baffle place uneven, optimize outward appearance; Injection moulding thickness can relatively accurately be controlled, and meets the various matching requirements with casing; Wire is fixed in the method injection moulding, reduces wire fracture risk; The method is applicable to very thin (2.5mm is following) can not folding side battery, injection moulding can be by dual-side expanding unit dispensing in glue-line.
The outer shape of right side plastic layer 342 and left side plastic layer 343 can be injection molded into difformity as required.As shown in Figure 8, outside is injection molded into respectively fillet up and down, and the radius of fillet is from 0.5mm to 2.5mm.As shown in Figure 9, outside is injection molded into perigon angle.As shown in figure 10, outside is injection molded into the oblique angle of different angles, and angle of bevel can be from 60 ° to 120 °.As shown in figure 11, outside is injection molded into wedge angle.
Embodiment tri-
Shown in Fig. 1, Fig. 2 and Figure 12, the present embodiment provides a kind of polymer Li-ion battery, comprises battery core 1 and baffle 2, and the anode ear 21 of battery core 1 and negative electrode lug 22 are connected on baffle 2, connect output 3 on baffle 2, and output 3 is wire; Also comprise top plastic layer 61, right side plastic layer 62, left side plastic layer 63 and bottom plastic layer 64; top plastic layer 61 wraps baffle 2, anode ear 21 and negative electrode lug 22; right side plastic layer 62 and left side plastic layer 63 wrap respectively the left and right sides of battery core 1, and bottom plastic layer 64 wraps the bottom of battery core 1.For safety, between top plastic layer 61 and baffle 2, anode ear 21, negative electrode lug 22, be provided with top insulating tape.For the attractive in appearance and description of product, labelled at the upper surface of battery, this label covers the inner side of top plastic layer 61, right side plastic layer 62, left side plastic layer 63, bottom plastic layer 64.
The manufacture method of above-mentioned polymer Li-ion battery, comprises the following steps:
1) anode ear 21 of output 3, battery core 1 and negative electrode lug 22 are welded on baffle 2;
2) with top insulating tape, wrap baffle 2, anode ear 21 and negative electrode lug 22, obtain the battery before injection moulding;
3) put the battery before injection moulding into injection molding machine; an injecting glue forms top plastic layer 61, right side plastic layer 62, left side plastic layer 63 and bottom plastic layer 64 thereon; top plastic layer 61 wraps baffle 2, anode ear 21 and negative electrode lug 22; right side plastic layer 62 and left side plastic layer 63 wrap respectively the left and right sides of battery core 1, and bottom plastic layer 64 wraps the bottom of battery core 1.
Said method is simplified the loaded down with trivial details operation of repeatedly pasting insulating tape, an injecting glue moulding; Fill and lead up baffle place uneven, optimize outward appearance; Injection moulding thickness can relatively accurately be controlled, and meets the various matching requirements with casing; Wire is fixed in the method injection moulding, reduces wire fracture risk; The method is applicable to thicker battery, surrounding injection moulding can reduce battery length and width dimensional tolerance, and can only accomplish at present+0/-0.8mm of soft-package battery width and length tolerance adopts surrounding injection moulding mode, can accomplish ± 0.1mm of length and width tolerance, it is tightr that closed tolerance makes battery coordinate with casing; The method is applicable to thicker (more than 2.5mm) battery, and injection moulding can make surrounding smooth; The method is applicable to the width tolerance battery of having relatively high expectations, and side needs injecting glue; The method is applicable to battery core afterbody out-of-flatness battery, and afterbody needs injecting glue.
The outer shape of right side plastic layer 62 and left side plastic layer 63 can be injection molded into difformity as required.As shown in figure 13, outside is injection molded into respectively fillet up and down, and the radius of fillet is from 0.5mm to 3mm.As shown in figure 14, outside is injection molded into perigon angle.Outside is injection molded into the oblique angle of different angles, and angle of bevel can be from 60 ° to 120 °, and as shown in figure 15, oblique angle drift angle is acute angle; As shown in figure 16, oblique angle drift angle is fillet.As shown in figure 17, outside is injection molded into wedge angle; As shown in figure 18, outside is injection molded into right angle.
Embodiment tetra-
Shown in Fig. 1, Fig. 2 and Figure 19, the present embodiment provides a kind of polymer Li-ion battery, comprises battery core 1 and baffle 2, and the anode ear 21 of battery core 1 and negative electrode lug 22 are connected on baffle 2, connect output 3 on baffle 2, and output 3 is wire; Also comprise whole plastic layer 7, whole plastic layer 7 wraps battery core 1 and baffle 2.For safety, between whole plastic layer 7 and baffle 2, anode ear 21, negative electrode lug 22, be provided with top insulating tape.
The manufacture method of above-mentioned polymer Li-ion battery, comprises the following steps:
1) anode ear of battery core 1 21 and negative electrode lug 22 are welded on baffle 2;
2) with top insulating tape, wrap baffle 2, anode ear 21 and negative electrode lug 22, obtain the battery before injection moulding;
3) put the battery before injection moulding into injection molding machine, injecting glue forms whole plastic layer 7 thereon, and whole plastic layer 7 wraps battery core 1 and baffle 2.
The method has the advantage of method described in embodiment tri-, makes the intensity of battery better simultaneously; The method is applicable to battery enough spaces, but the high battery of requirement of strength.
The utility model is not limited to above-described embodiment, based on simple replacement above-described embodiment, that do not make creative work, should belong to the scope that the utility model discloses.
Claims (8)
1. a polymer Li-ion battery, comprises battery core and baffle, and the anode ear of battery core and negative electrode lug are connected on baffle, connects output on baffle; It is characterized in that, also comprise top plastic layer, top plastic layer wraps baffle, anode ear and negative electrode lug.
2. polymer Li-ion battery according to claim 1, is characterized in that, is provided with top insulating tape between top plastic layer and baffle, anode ear, negative electrode lug.
3. polymer Li-ion battery according to claim 1, is characterized in that, also comprises right side plastic layer and left side plastic layer, and right side plastic layer and left side plastic layer wrap respectively the left and right sides of battery core.
4. polymer Li-ion battery according to claim 3, is characterized in that, also comprises bottom plastic layer, and bottom plastic layer wraps the bottom of battery core.
5. polymer Li-ion battery according to claim 4, it is characterized in that, the outer shape of right side plastic layer and left side plastic layer is: outside be up and down fillet, or outside is oblique angle, outside is perigon angle, or outside is wedge angle, or outside is right angle, the radius of described fillet is from 0.5mm to 3mm, and the angle at described oblique angle is from 60 ° to 120 °, and the drift angle at described oblique angle is acute angle or fillet.
6. a polymer Li-ion battery, comprises battery core and baffle, and the anode ear of battery core and negative electrode lug are connected on baffle, connects output on baffle; It is characterized in that, also comprise whole plastic layer, whole plastic layer wraps battery core and baffle.
7. polymer Li-ion battery according to claim 6, it is characterized in that, the outer shape of the left and right sides of described whole plastic layer is: outside be up and down fillet, or outside is oblique angle, outside is perigon angle, or outside is wedge angle, or outside is right angle, the radius of described fillet is from 0.5mm to 3mm, and the angle at described oblique angle is from 60 ° to 120 °, and the drift angle at described oblique angle is acute angle or fillet.
8. polymer Li-ion battery according to claim 7, is characterized in that, is provided with top insulating tape between whole plastic layer and baffle, anode ear, negative electrode lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320643230.0U CN203760574U (en) | 2013-10-17 | 2013-10-17 | Polymer lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320643230.0U CN203760574U (en) | 2013-10-17 | 2013-10-17 | Polymer lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760574U true CN203760574U (en) | 2014-08-06 |
Family
ID=51255812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320643230.0U Expired - Lifetime CN203760574U (en) | 2013-10-17 | 2013-10-17 | Polymer lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203760574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514352A (en) * | 2015-12-14 | 2016-04-20 | 东莞新能源科技有限公司 | Electrode assembly and lithium-ion battery cell adopting same |
-
2013
- 2013-10-17 CN CN201320643230.0U patent/CN203760574U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514352A (en) * | 2015-12-14 | 2016-04-20 | 东莞新能源科技有限公司 | Electrode assembly and lithium-ion battery cell adopting same |
| US10283816B2 (en) | 2015-12-14 | 2019-05-07 | Dongguan Amperex Technology Limited | Electrode assembly, and lithium ion electric roll using the electrode assembly |
| US10840557B2 (en) | 2015-12-14 | 2020-11-17 | Dongguan Amperex Technology Limited | Electrode assembly, and lithium ion electric roll using the electrode assembly |
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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: 209 No. 519000 Guangdong province Zhuhai city Doumen District Xinqing Science and Technology Industrial Park, Mount Everest Boulevard Patentee after: Zhuhai CosMX Battery Co.,Ltd. Address before: 209 No. 519000 Guangdong province Zhuhai city Doumen District Xinqing Science and Technology Industrial Park, Mount Everest Boulevard Patentee before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. Address after: 209 No. 519000 Guangdong province Zhuhai city Doumen District Xinqing Science and Technology Industrial Park, Mount Everest Boulevard Patentee after: ZHUHAI COSLIGHT BATTERY Co.,Ltd. Address before: 209 No. 519000 Guangdong province Zhuhai city Doumen District Xinqing Science and Technology Industrial Park, Mount Everest Boulevard Patentee before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |