CN201397860Y - Novel Lithium ion power battery - Google Patents
Novel Lithium ion power battery Download PDFInfo
- Publication number
- CN201397860Y CN201397860Y CN2009200966261U CN200920096626U CN201397860Y CN 201397860 Y CN201397860 Y CN 201397860Y CN 2009200966261 U CN2009200966261 U CN 2009200966261U CN 200920096626 U CN200920096626 U CN 200920096626U CN 201397860 Y CN201397860 Y CN 201397860Y
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- Prior art keywords
- battery
- utmost point
- point group
- lithium ion
- electrokinetic cell
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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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a novel lithium ion power battery, which comprises a battery pole group (10) placed in a polymer packaging membrane (20); pole group end surfaces (8) are arranged at the upper end and the lower end of the battery pole group (10); and a battery tab (9) is laser welded at each pole group end surface (8). Compared with the prior art, the novel lithium ion power battery disclosed by the utility model can further reduce the cost of a traditional circular battery, has good current collecting effect, and can meet the utilization request of a working condition of high-current discharge of an electric tool, thereby achieving a significant production practice.
Description
Technical field
The utility model relates to the battery technology field, particularly relates to a kind of new type lithium ion electrokinetic cell.
Background technology
Lithium ion battery compare with the battery of other types such as plumbic acid, cadmium nickel have that specific capacity is big, operating voltage is high, charging rate is fast, operating temperature range is wide, have extended cycle life, volume is little, advantage such as in light weight.At present, be widely used in fields such as mobile phone, notebook computer, electric tool, and its range of application more and more widely.
Expansion along with the lithium ion battery scope of application, traditionally the chemical power source that is applied to dynamic power system is called electrokinetic cell, as be applied to fields such as electric tool, electric motor car, electrokinetic cell service condition complexity also requires battery to have higher volumetric properties and power-performance and excellent safety energy simultaneously.Employing lead-acid battery and ickel-cadmium cell that present traditional electrokinetic cell is more, instructions for use when these two kinds of batteries can provide bigger output current often to need high-power output to be suitable for electric tool and electric motor car wants to adopt lithium ion battery must further improve the power-performance of battery to satisfy the instructions for use of electrokinetic cell on present basis as electrokinetic cell.
Electric tool generally adopts round ickel-cadmium cell as power source at present, high manufacturing cost and security performance hamper the application prospect of lithium ion battery always, lithium ion battery wants being applied on the electric tool of success, need further reduce cost, improve the ability and the security performance of heavy-current discharge.
The utility model content
In view of this, the purpose of this utility model provides a kind of new type lithium ion electrokinetic cell, can further reduce traditional circular battery cost, and catchment effect is good, can satisfy the instructions for use of electric tool heavy-current discharge operating mode, be of great practical significance.
For this reason, the utility model provides a kind of new type lithium ion electrokinetic cell, includes battery utmost point group 10, and the two ends up and down of this battery utmost point group 10 have utmost point group end face 8, Laser Welding is connected to battery pole ear 9 on the described utmost point group end face 8, and described battery utmost point group 10 is placed in the polymer encapsulated film 20.
Preferably, the top of described battery pole ear 9 has metal collector 6, is with heat-seal adhesive 7 on this metal collector 6, and described battery pole ear 9 bottoms have area and utmost point group end face 8 corresponding to circular metal plates 11.
Preferably, the circular metal plate 11 of described battery pole ear 9 bottoms and utmost point group end face 8 laser welding mutually.
Preferably, described battery utmost point group 10 is reeled and is formed by positive plate reservation aluminium foil 1, positive plate 2, barrier film 3, negative plate 4, negative plate reservation Copper Foil 5.
Preferably, described positive plate is reserved aluminium foil 1 and is connected with the lower edge of positive plate 2, described positive plate 2 is positioned at the left end upper surface of described barrier film 3, and the right-hand member upper surface parcel of described barrier film 3 is provided with negative plate 4, and the fixedly connected described negative plate in the upper edge of described negative plate 4 is reserved Copper Foil 5.
The technical scheme that is provided by above the utility model as seen, compared with prior art, the utility model provides a kind of new type lithium ion electrokinetic cell, can further reduce traditional circular battery cost, catchment effect is good, can satisfy the instructions for use of electric tool heavy-current discharge operating mode, be of great practical significance.
Description of drawings
Pole piece shape and coiling stack the structural representation of order in a kind of new type lithium ion electrokinetic cell that Fig. 1 provides for the utility model;
The shape and structure schematic diagram of lug in a kind of new type lithium ion electrokinetic cell that Fig. 2 provides for the utility model;
The effect schematic diagram of utmost point bond pads lug in a kind of new type lithium ion electrokinetic cell that Fig. 3 provides for the utility model;
Fig. 4 is for the overall schematic of back a kind of new type lithium ion electrokinetic cell of providing of the utility model is provided;
Among the figure, 1 is positive plate reservation aluminium foil, and 2 is positive plate, and 3 is barrier film, and 4 is negative plate, and 5 for negative plate reservation Copper Foil 5,6 is a metal collector, and 7 are the heat-sealing school, and 8 is utmost point group end face, and 9 is battery pole ear, and 10 is battery utmost point group, and 11 is circular metal plate, and 20 is encapsulating film.
Embodiment
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with drawings and embodiments.
The effect schematic diagram of utmost point bond pads lug in a kind of new type lithium ion electrokinetic cell that Fig. 3 provides for the utility model.
Referring to Fig. 3, the utility model provides a kind of new type lithium ion electrokinetic cell, and this battery includes battery utmost point group 10, and the two ends up and down of this battery utmost point group 10 have utmost point group end face 8, and Laser Welding is connected to battery pole ear 9 on the described utmost point group end face 8.
Referring to Fig. 2, the top of described battery pole ear 9 has metal collector 6, be with heat-seal adhesive 7 on this metal collector 6, described battery pole ear 9 bottoms have area and utmost point group end face 8 corresponding to circular metal plates 11, in the utility model, the circular metal plate 11 of described battery pole ear 9 bottoms and utmost point group end face 8 be laser welding mutually.
Referring to Fig. 4, described battery utmost point group 10 is placed in the polymer encapsulated film 20.On concrete the enforcement, by battery pole ear 9 is bent, plastic-aluminum combined encapsulating film 20 is washed into two semicircle column type zones, overall volume is consistent with round battery utmost point group 10, battery utmost point group 10 is packed in the polymer encapsulated film 20, the both sides up and down of battery utmost point group 10 are lived in heat-sealing, stay side to carry out fluid injection and seal, at last the new type lithium ion electrokinetic cell that provides of the utility model of Xing Chenging.
Referring to Fig. 1, described battery utmost point group 10 is reserved aluminium foil 1 by positive plate, positive plate 2, barrier film 3, negative plate 4, negative plate is reserved Copper Foil 5 coilings and is formed, winding method such as round utmost point group, positive plate 2 before being involved in, negative plate 4 and barrier film 3 stack order as shown in Figure 1, utmost point group behind the coiling as shown in Figure 3, described positive plate is reserved aluminium foil 1 and is connected with the lower edge of positive plate 2, described positive plate 2 is positioned at the left end upper surface of described barrier film 3, the right-hand member upper surface parcel of described barrier film 3 is provided with negative plate 4, and the fixedly connected described negative plate in the upper edge of described negative plate 4 is reserved Copper Foil 5.
In the utility model, described positive plate 2 and negative plate 4 all adopt the continuous coating method of constant width, and described battery pole ear 9 is a polymer pole ear.
Need to prove that described utmost point group end face 8 is reserved Copper Foil 5 and formed by applying the certain pressure compacting by positive plate being reserved aluminium foil 1, negative plate behind coiling.
The utility model is to improve on existing round battery basis, adopt the outer enclosure mode of the afflux structure aluminum plastic film flexible package of end face welding, battery structure is simple, reduction by a relatively large margin traditional round battery cost, catchment effect is good, can satisfy the instructions for use of electric tool heavy-current discharge operating mode.
Utmost point group in a kind of new type lithium ion electrokinetic cell that the utility model provides adopts the round structure design, two end faces are reserved Copper Foil, aluminium foil, adopt the mode of end face welding to be welded on two end faces polymer pole ear as outside afflux structure, polymer pole ear is directly extracted, overall structure has only two places to be welded to connect a little, reduce the connection internal resistance that battery cover caused of the round battery of conventional combination capping type, helped improving the high rate performance of battery.The outside aluminum-plastic composite membrane encapsulating material that adopts reduced battery cost greatly, and the material characteristics of self can play good safety anti-explosive effect.Integral battery door is simple in structure, round winding method is easy to realize automation size production with existing processes, battery is with low cost, can be fit to heavy-current discharge, outside combination can directly realize the lug welding, and easy to connect, security performance is good, want to be more suitable for the instructions for use of electric tool than traditional round box hat battery.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1, a kind of new type lithium ion electrokinetic cell, it is characterized in that, include battery utmost point group (10), the two ends up and down of this battery utmost point group (10) have utmost point group end face (8), described utmost point group end face (8) is gone up Laser Welding and is connected to battery pole ear (9), and described battery utmost point group (10) is placed in the polymer encapsulated film (20).
2, new type lithium ion electrokinetic cell as claimed in claim 1, it is characterized in that, the top of described battery pole ear (9) has metal collector (6), be with heat-seal adhesive (7) on this metal collector (6), described battery pole ear (9) bottom has area and the corresponding to circular metal plate of utmost point group end face (8) (11).
3, new type lithium ion electrokinetic cell as claimed in claim 2 is characterized in that, the circular metal plate (11) of described battery pole ear (9) bottom and utmost point group end face (8) be laser welding mutually.
4, new type lithium ion electrokinetic cell as claimed in claim 1 is characterized in that, described battery utmost point group (10) is reserved Copper Foil (5) coiling and formed by positive plate reservation aluminium foil (1), positive plate (2), barrier film (3), negative plate (4), negative plate.
5, new type lithium ion electrokinetic cell as claimed in claim 4, it is characterized in that, described positive plate is reserved aluminium foil (1) and is connected with the lower edge of positive plate (2), described positive plate (2) is positioned at the left end upper surface of described barrier film (3), the right-hand member upper surface parcel of described barrier film (3) is provided with negative plate (4), and the fixedly connected described negative plate in the upper edge of described negative plate (4) is reserved Copper Foil (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200966261U CN201397860Y (en) | 2009-05-05 | 2009-05-05 | Novel Lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200966261U CN201397860Y (en) | 2009-05-05 | 2009-05-05 | Novel Lithium ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397860Y true CN201397860Y (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200966261U Expired - Lifetime CN201397860Y (en) | 2009-05-05 | 2009-05-05 | Novel Lithium ion power battery |
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| CN (1) | CN201397860Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771142A (en) * | 2010-02-10 | 2010-07-07 | 力佳电源科技(深圳)有限公司 | Tab material of flexible-packaging lithium battery as well as electroplating method and application method thereof |
-
2009
- 2009-05-05 CN CN2009200966261U patent/CN201397860Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101771142A (en) * | 2010-02-10 | 2010-07-07 | 力佳电源科技(深圳)有限公司 | Tab material of flexible-packaging lithium battery as well as electroplating method and application method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100203 |
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| CX01 | Expiry of patent term |