CN200953365Y - Square secondary lithium battery core structure - Google Patents
Square secondary lithium battery core structure Download PDFInfo
- Publication number
- CN200953365Y CN200953365Y CNU2006201209725U CN200620120972U CN200953365Y CN 200953365 Y CN200953365 Y CN 200953365Y CN U2006201209725 U CNU2006201209725 U CN U2006201209725U CN 200620120972 U CN200620120972 U CN 200620120972U CN 200953365 Y CN200953365 Y CN 200953365Y
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- negative
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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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Abstract
A square secondary lithium battery core is provided, which mainly comprises a basal plate, a pole coil and two conduction sets. With the conductive compressed tablet of the conducting set, the utility model compressed all layers of connecting areas of the pole coil anode or cathode for one time, and complete electrical connection. All layers are directly and tightly conductive and compress. In terms of component quantity, all layers direct conductive compression is simpler than layer by layer compression mode. In addition, as all layers of the pole coil anode or cathode are directly compressed to contact and conduct electricity, compared to existing technique of layer by layer compression through several main pads and assistant pads. The battery adopted the utility model structure has a lower internal impedance, and the structure is much more applicable to high voltage battery.
Description
Technical field
A kind of core strueture of quadrate secondary lithium battery is meant the utmost point volume conduction connecting structure design that serondary lithium battery inside should the electricity core especially.
Background technology
Existing square serondary lithium battery, be used filling as low electric weight more, the discharge purposes, for example: No. 6844109 patent of the U.S., be an existing quite general low electric weight square serondary lithium battery structure, see also shown in Figure 1, wherein, the main composition of this electricity core 10, comprise: utmost point volume 11, a plurality of positive poles and negative pole conduction handle 121,122 and two conductive sleeves 13 constitute, wherein, this utmost point volume is usually by an anodal layer, one separator and a negative electrode layer repeatedly put mutually constitute, this utmost point volume and seeing through is repeatedly put or winding method constitutes the structure kenel of a multilayer, and respectively draw several positive poles and negative pole conduction handle respectively in each anodal layer and the negative electrode layer in this, see through of the integrated derivation of this two conductive clip again as this each negative or positive electrode conduction handle;
Aforementioned serondary lithium battery structure composition is quite simplified, but structure is too fragile, only be suitable as the battery structure of low electric weight, for the electrokinetic cell of high electric weight, and it is inapplicable, see also Fig. 2, shown in Figure 3, this is the square battery utmost point volume integrated morphology of the Republic of China's 0 patent I233227 number, wherein this utmost point volume 20 is by an anodal layer, one separator and a negative electrode layer repeatedly put mutually constitute, it is outside and be configured as the volute structure of multilayer that this utmost point volume 20 is wound in a substrate 21, anodal layer and the distolateral uncoated section portion 22 that respectively is provided with of negative electrode layer in this utmost point volume 20, and be able to a plurality of main pads 23, a plurality of times pad 24 correspondences are arranged in the section portion 22 of these utmost point volume 20 each layers, and see through a plurality of tightening latches 25 and wore this main pad 23 in regular turn, inferior pad 24 and substrate 21, and constitute the conduction integrated morphology that this utmost point is rolled up;
What deserves to be mentioned is that owing to be provided with a substrate component in the aforementioned electric pool structure, not only overall structure is comparatively strong not yielding, and this substrate outside can be for firmly reeling the utmost point layer of the more number of plies, and can be suitable as the structure of high electric weight battery;
Yet, in the aforementioned existing square battery structure applicable to high electric weight, see through section portion that this main pad and time pad and this utmost point roll up each layer respectively clamping connect, though can exempt existing conduction handle structure, and the welding or the molding procedure of saving the conduction handle, it should be noted that, in this battery structure, must in each utmost point layer of this utmost point volume, all dispose a main pad and a pad, when the quantity of utmost point layer is huge, the quantity of this main pad and time pad certainly will increase relatively, so not only can cause the member cost to raise, assembling procedure increases and is complicated, the more important thing is that the main pad that is arranged in this utmost point layer respectively can make the whole internal resistance of electric core raise (contact resistance), and cause temperature to rise, the problem of power consumption, and for filling of high-capacity battery, discharge, high contact resistance can cause the Yin Gaowen of section portion of this utmost point volume and the serious problems of oxidation especially;
This shows that the structural design of existing square serondary lithium battery is not obviously attained perfectly, and significantly necessity of improvement is arranged further in addition; Therefore, research and development center of gravity of the present utility model, be at the member of existing high-capacitance quadrate secondary lithium battery form complicated, assembly is difficult and the contact resistance of deriving is crossed problems such as height, do a breakthrough improvement, the utility model sees through structural design, the contact resistance of its conduction integrated morphology is significantly reduced, and the structure composition is more simplified, in the hope of more meeting the actual demand of high-capacity battery.
The utility model content
Main purpose of the present utility model, be to provide a kind of core strueture of quadrate secondary lithium battery, the utility model sees through this and connects the conduction compressing tablet of assembly, directly the negative or positive electrode with this utmost point volume connects each floor one step press in district and finishes electric connection, the utility model not only structure is formed and to be simplified, and after this negative or positive electrode connects each floor in district directly pressing is conducted electricity, the battery that is constituted, its internal driving is obviously low than existing structure, is suitable for the battery structure demand of high electric weight.
Another purpose of the present utility model, be to provide a kind of core strueture of quadrate secondary lithium battery, the utility model sees through this and connects the conduction compressing tablet of assembly, directly the negative or positive electrode with this utmost point volume connects each floor one step press in district and finishes electric connection, because forming, member simplifies, for the processing procedure difficulty and cost of battery, can significantly reduce undoubtedly, and realistic demand.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of core strueture of quadrate secondary lithium battery, this electricity core is mounted on a rectangular cell jar inside, and through a connection piece and distolateral positive pole and the electrically connection of negative pole leading-out terminal do of this battery can, it is characterized in that, mainly comprise:
One substrate is an insulation system, is located at this battery can inside;
One utmost point volume, repeatedly putting the outside that is wound in substrate in regular turn mutually with at least one anodal layer, at least one separator and at least one negative electrode layer is constituted, an one distolateral positive pole that is provided with a uncoated positive electrode coating of this positive pole floor connects the district, connect the distolateral in addition of district in this negative electrode layer with respect to positive pole, a negative pole that is provided with a uncoated negative pole coating connects the district, and makes this positive pole and this negative pole connect the district rolling up two distolateral protruding out from the utmost point respectively and expose;
Two connect assembly, respectively has at least one gim peg and at least one conduction compressing tablet constitutes, the corresponding setting of this conduction compressing tablet is positioned at the outside that this negative or positive electrode connects the district, the perforation of passing this conduction compressing tablet through this gim peg is fixedly arranged on this substrate again, and making this conduction compressing tablet and negative or positive electrode connect district's closely contact and electrically combination mutually, this connects assembly and sees through a connection piece and connect the terminal electric connection with negative or positive electrode.
The core strueture of described quadrate secondary lithium battery, distolateral in this substrate two, respectively be provided with a conductive sleeve, this conduction is placed in this conduction compressing tablet pressing negative or positive electrode when connecting each floor in district, and the negative or positive electrode in the substrate two sides connects the district can further cross over connection.
The core strueture of described quadrate secondary lithium battery, this connector is constituted by the lead of a tool around property.
The employing the beneficial effects of the utility model are: the utility model sees through this and connects the conduction compressing tablet of assembly, directly the negative or positive electrode with this utmost point volume connects each floor one step press of district and finishes electric connection, this each layer is closely conduction pressing directly, with regard to the number of components, structure of the present utility model is formed obviously more existing pressing successively and is simplified, in addition, each floor that connects the district owing to this negative or positive electrode is that direct pressing contacts conduction, must be compared to prior art through successively pressing the structure kenel of establishing with several main pads and time pad, the battery that the utility model structure is constituted, its internal driving is obviously lower, is suitable for the battery structure as high electric weight.
Description of drawings
Fig. 1 is the existing rectangular cell structural upright schematic diagram of No. 6844109 patent of the U.S..
Fig. 2 is the rectangular cell core strueture perspective exploded view of TaiWan, China I233227 patent.
Fig. 3 is that the rectangular cell core strueture solid of TaiWan, China I233227 patent is in conjunction with schematic diagram.
Fig. 4 is the utility model core strueture perspective exploded view.
Fig. 5 is that the utility model core strueture is in conjunction with schematic perspective view.
Fig. 6 is that the utility model core strueture is in conjunction with cross-sectional schematic.
Fig. 7 is the perspective exploded view before the utility model electricity core and battery can set.
Fig. 8 is that the utility model electricity core and battery can group are established the state cross-sectional schematic.
Fig. 9 is that the utility model electricity core is set up a conductive sleeve structure cross-sectional schematic.
[primary clustering symbol description]
10 electric core 11 utmost points volumes
121 anodal conduction handle 122 negative poles conduction handles
13 conductive sleeves, 20 utmost points volume
22 sections portions of 21 substrates
24 pads of 23 main pads
25 tightening latches
30 battery cans, 31 anodal leading-out terminals
32 negative pole leading-out terminals, 40 substrates
50 utmost points volume, 51 anodal layers
511 positive poles connect district's 52 separators
53 negative electrode layers, 531 negative poles connect the district
60 connect assembly 61 gim pegs
621 perforation of 62 conduction compressing tablets
70 connectors, 80 conductive sleeves
Embodiment
About the utility model for reaching above-mentioned purpose, the technology that is adopted, means and effect, lift a preferable possible embodiments now and cooperate graphic detailed description as after; At first, please cooperate and consult Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, the core strueture of a kind of quadrate secondary lithium battery that the utility model embodiment is provided, this electricity core is mainly connected assembly 60 and is constituted by a substrate 40, utmost point volume 50 and two, this electricity core is mounted on a rectangular cell jar 30 inside, and see through two connectors 70 with distolateral positive pole of this battery can 30 and negative pole leading-out terminal 31,32 and do electrically to connect, wherein:
This substrate 40 is located at this battery can 30 inside;
This utmost point volume 50, with an anodal layer 51, one separator 52 and a negative electrode layer 53 are repeatedly put mutually in regular turn and are wound in that this substrate 40 is outside to be constituted, this just, negative electrode layer 51,53 surfaces are coated with the negative or positive electrode material respectively, and these separator 52 settings just are positioned at, negative electrode layer 51, between 53, the positive pole that these positive pole floor 51 1 ends are provided with a uncoated positive electrode coating connects district 511, in this negative electrode layer 53 with respect to positive pole connect district 511 another is distolateral, a negative pole that is provided with a uncoated negative pole coating connects the district, and make positive pole and negative pole connect district 511,531 expose from two distolateral protruding out respectively, after constituting this utmost point volume 50 in order to do the outside that is wound in center bar when each layer circle circle, and should positive pole and negative pole connect district 511,531 expose from two distolateral protruding out of this utmost point volume 50 respectively;
This connects assembly 60, have a gim peg 61 and two conduction compressing tablets 62, these conduction compressing tablet 62 1 end faces are provided with a perforation 621, this two conductions compressing tablet 62 is provided with and is positioned at the outside relative position that this negative or positive electrode connects district 511,531, this gim peg 61 can be a bolt, pass the wherein perforation 621 of perforation 621, substrate 40 and another conduction compressing tablet 62 of a conduction compressing tablet 62 in regular turn, and see through lock, and see through this conduction compressing tablet 62 and the utmost point and roll up 50 negative or positive electrode and connect and distinguish 511,531 tight mutually pressings and electrical combination if this conduction compressing tablet 62 is fixedly arranged on this substrate 40;
This connector 70, be a conduction and form a warp architecture around the property member, the conduction compressing tablet 62 on an end and this utmost point volume 50 electrically connects, and holds in addition then to electrically connect with this negative or positive electrode leading-out terminal 31,32.
The above, the core strueture composition and the member assembly that are the utility model quadrate secondary lithium battery concern the position, see through the utility model technology, each lamination that the negative or positive electrode that can be directly carries out this utmost point volume with this conduction compressing tablet that connects assembly connects the district closes and electrically connects operation, by this, not only the structure of battery form simplify and constitute battery after, the internal resistance of this battery can reduce because of member reduces relatively significantly, now its actual user mode is described in detail as follows:
Please consult Fig. 4 again, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, the utility model leaves the uncoated positive pole of large tracts of land and negative pole connects district 511 this utmost point volume 50 distolateral, 531, this negative or positive electrode connects district 511,531 is multilayer structure repeatedly mutually, this conduction compressing tablet 62 that connects assembly 60 is equipped on this positive pole and negative pole connects district 511,531 is corresponding outside, and wore the perforation 621 of this conduction compressing tablet 62 and substrate 40 and locking with this gim peg 61, make part and this negative or positive electrode of this conduction compressing tablet 62 connect district 511,531 each layers are closely packing clamping mutually, each floor that meets the district all closely coincides, mat makes, and the electric energy of this utmost point volume 50 can connect district 511 from negative or positive electrode, this conduction compressing tablet 62 of 531 processes and derivation smoothly;
It should be noted that, the negative or positive electrode of this utmost point volume 50 connects district 511,531 each layers, be to see through one group of conduction compressing tablet 62 directly each layer once closely conducts electricity pressing with this, with regard to the number of components and structure kenel, member of the present utility model and structure composition are obviously comparatively simplified, in addition, this negative or positive electrode of the utility model connects district 511, each of 531 layer is direct pressing contact conduction, must see through with main pad compared to existing structure, members such as inferior pad are successively pressed the structure kenel of establishing, the battery that the utility model structure is constituted, its internal driving (contact resistance) is obviously lower, is suitable for the battery structure of high-capacitance;
In addition, see also shown in Figure 9, wherein can be distolateral in this substrate 40 2, respectively be arranged with a conductive sleeve 80, when this conductive sleeve 80 connects each floor in district 511,531 in these conduction compressing tablet 62 pressing negative or positive electrodes, the negative or positive electrode that is positioned at substrate 40 two sides can be connected district 511,531 and further cross over connection, the current path when the increase battery carries out the charge and discharge operation is used further reduction inside battery resistance.
Claims (3)
1. the core strueture of a quadrate secondary lithium battery, this electricity core is mounted on a rectangular cell jar inside, and sees through a connection piece and this battery can distolateral positive pole and negative pole leading-out terminal and do electrically connection, it is characterized in that, mainly comprises:
One substrate is an insulation system, is located at this battery can inside;
One utmost point volume, repeatedly putting the outside that is wound in substrate in regular turn mutually with at least one anodal layer, at least one separator and at least one negative electrode layer is constituted, an one distolateral positive pole that is provided with a uncoated positive electrode coating of this positive pole floor connects the district, connect the distolateral in addition of district in this negative electrode layer with respect to positive pole, a negative pole that is provided with a uncoated negative pole coating connects the district, and makes this positive pole and this negative pole connect the district rolling up two distolateral protruding out from the utmost point respectively and expose;
Two connect assembly, respectively has at least one gim peg and at least one conduction compressing tablet constitutes, the corresponding setting of this conduction compressing tablet is positioned at the outside that this negative or positive electrode connects the district, the perforation of passing this conduction compressing tablet through this gim peg is fixedly arranged on this substrate again, and making this conduction compressing tablet and negative or positive electrode connect district's closely contact and electrically combination mutually, this connects assembly and sees through a connection piece and connect the terminal electric connection with negative or positive electrode.
2. the core strueture of quadrate secondary lithium battery according to claim 1, it is characterized in that: distolateral in this substrate two, respectively be provided with a conductive sleeve, this conduction is placed in this conduction compressing tablet pressing negative or positive electrode when connecting each floor in district, and the negative or positive electrode in the substrate two sides connects the district can further cross over connection.
3. the core strueture of quadrate secondary lithium battery according to claim 1, it is characterized in that: this connector is constituted by the lead of a tool around property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201209725U CN200953365Y (en) | 2006-09-22 | 2006-09-22 | Square secondary lithium battery core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201209725U CN200953365Y (en) | 2006-09-22 | 2006-09-22 | Square secondary lithium battery core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953365Y true CN200953365Y (en) | 2007-09-26 |
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ID=38811667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201209725U Expired - Lifetime CN200953365Y (en) | 2006-09-22 | 2006-09-22 | Square secondary lithium battery core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953365Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044698A (en) * | 2010-12-06 | 2011-05-04 | 中南大学 | High-power lithium ion battery and preparation method thereof |
| CN102903882A (en) * | 2011-07-27 | 2013-01-30 | 松下能源(无锡)有限公司 | Terminal connection structure and circuit assembly with terminal connection structure |
-
2006
- 2006-09-22 CN CNU2006201209725U patent/CN200953365Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044698A (en) * | 2010-12-06 | 2011-05-04 | 中南大学 | High-power lithium ion battery and preparation method thereof |
| CN102044698B (en) * | 2010-12-06 | 2013-09-04 | 中南大学 | High-power lithium ion battery and preparation method thereof |
| CN102903882A (en) * | 2011-07-27 | 2013-01-30 | 松下能源(无锡)有限公司 | Terminal connection structure and circuit assembly with terminal connection structure |
| CN102903882B (en) * | 2011-07-27 | 2015-04-15 | 松下能源(无锡)有限公司 | Terminal connection structure and circuit assembly with terminal connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060922 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060922 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |