CN106207276A - Lithium cell core - Google Patents
Lithium cell core Download PDFInfo
- Publication number
- CN106207276A CN106207276A CN201510295863.0A CN201510295863A CN106207276A CN 106207276 A CN106207276 A CN 106207276A CN 201510295863 A CN201510295863 A CN 201510295863A CN 106207276 A CN106207276 A CN 106207276A
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- CN
- China
- Prior art keywords
- extension
- location division
- core
- lithium cell
- connector assembly
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- 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.)
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Classifications
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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
-
- 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
A kind of lithium cell core, it is that core two side in a lower house forms positive and negative electrode lug group respectively, a cover plate connects first, second connector assembly, wherein, first connector assembly is electrically connected with the first location division of cathode conductive film, and the second connector assembly is electrically connected with the second location division of cathode conductive film.And downwardly extended one first extension by the side of the first location-plate in the direction of the first location-plate with diagrammatic vertical, first extension connects negative lug group, being downwardly extended one second extension with diagrammatic vertical in the direction of the second location-plate by the side of the second location-plate, the second extension connects positive pole ear group.Whereby, positive and negative electrode conducting strip can be allowed to be electrically connected with the positive and negative electrode lug group of large area mode with core respectively, to meet the charge and discharge use demand of the big electric current of high magnification.
Description
Technical field
The present invention is relevant a kind of lithium cell core, and a kind of energy is suitable for the charge and discharge of the big electric current of high magnification and uses, and guarantees to use safety.
Background technology
The lithium cell core used at present, mainly includes a housing, and housing is built-in is placed with electrolyte solution and lithium battery coiling core, and lithium battery coiling core is wound continuously by positive plate, isolating membrane and negative plate and forms.Wherein, positive plate welding positive pole ear, positive pole ear is welded in inner walls again, allows housing with positive terminal in electrically connecting.And negative plate welding negative lug, negative lug is the most upwards welded on the bottom of the negative terminal of housing.Consequently, it is possible to after a nut can being screwed togather respectively via the external screw thread of positive terminal and negative terminal column top, different binding posts is fixed respectively, to export positive and negative electricity respectively.
But, above-mentioned negative lug is additionally drawn by negative plate, then is welded in the bottom of negative terminal, and its processor is numerous and diverse；And positive pole ear is welded in inner walls and negative lug is welded in negative terminal, the quality of its pad is wayward, and be often the contact of point-like, therefore, easily cause conduction and bad problem of dispelling the heat, it is suitable for the energy storage electricity consumption of small area analysis, and the charge and discharge being not suitable for the big electric current of high magnification use.
Summary of the invention
In view of this, in order to provide a kind of structure being different from prior art, and improving above-mentioned shortcoming, inventor amasss experience for many years and constantly researches and develops improvement, then has the generation of the present invention.
One purpose of the present invention is to provide a kind of lithium cell core, negative lug group and positive pole ear group is formed respectively by two sides in core, and make the structure that cathode conductive film and cathode conductive film be electrically connected with negative lug group and positive pole ear group respectively in large area mode, and the conduction of existing lithium battery and bad problem of dispelling the heat can be solved, and can effectively conduct electricity and dispel the heat, to guarantee to use safety.
One purpose of the present invention is to provide a kind of lithium cell core, negative lug group and positive pole ear group is formed respectively by two sides in core, and make the structure that cathode conductive film and cathode conductive film be electrically connected with negative lug group and positive pole ear group respectively in large area mode, and the pad that can solve existing lithium battery is point-like contacts, its quality is wayward, and it is suitable only for the problem of small area analysis energy storage electricity consumption, and the charge and discharge that can meet the big electric current of high magnification use demand.
In order to achieve the above object, a kind of lithium cell core set by the present invention includes lower house and is covered on the cover plate on lower house top, cover plate is provided with the first connector assembly and the second connector assembly, accommodating electrolyte solution and at least one core in lower house, core has negative lug group and positive pole ear group, negative lug group is electrically connected with the first connector assembly, positive pole ear group is electrically connected with the second connector assembly, and its main technical characterstic is: negative lug group and positive pole ear group lay respectively at two sides of core；The bottom of the first connector assembly combines cathode conductive film, cathode conductive film includes the first location division and the first extension, first location division is electrically connected with the first connector assembly, first extension is downwardly extended in the direction of the first location division with diagrammatic vertical by the side of the first location division, and the first extension connects negative lug group；And, the bottom of the second connector assembly combines cathode conductive film, cathode conductive film includes the second location division and the second extension, second location division is electrically connected with the second connector assembly, second extension is downwardly extended in the direction of the second location division with diagrammatic vertical by the side of the second location division, and the second extension connects positive pole ear group.
During enforcement, the cross section of the first extension and the cross section of the second extension are the most u-shaped；First location division and the first extension are inverted L-shaped.
During enforcement, negative straps further includes the 3rd extension, and the direction that the 3rd extension is perpendicular to the first location division by the opposite side of the first location division with entirety downwardly extends, and the first location division, the first extension and the 3rd extension are reverse U shape.
During enforcement, the second location division and the second extension are inverted L-shaped.Positive strap further includes the 4th extension, and the 4th extension is downwardly extended in the direction of the second location division with diagrammatic vertical by the opposite side of the second location division, and the second location division, the second extension and the 4th extension are reverse U shape.
During enforcement, this creation further includes the first conducting strip and the second conducting strip, and the first conducting strip fits on the first location division of cathode conductive film, and the second conducting strip fits on the second location division of cathode conductive film.
During enforcement, the top of negative lug group forms unfilled corner on first, and the bottom of negative lug group forms first time unfilled corner；And the top of positive pole ear group forms unfilled corner on second, the bottom of positive pole ear group forms second time unfilled corner.
During enforcement, this creation further includes an insulating gum cover, and lower house is metal material, and insulating gum cover fit core, and be folded between core and lower house.
For further appreciating that the present invention, below lift preferred embodiment, coordinate graphic, figure number, the concrete constitution content of the present invention and effect of being reached thereof are described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the element exploded view of the first embodiment of the present invention.
Fig. 2 is the three-dimensional appearance schematic diagram of the first embodiment of the present invention.
Fig. 3 is the three-dimensional appearance schematic diagram of first, second conducting strip of the second embodiment of the present invention.
Fig. 4 is the three-dimensional appearance schematic diagram of first, second conducting strip of the third embodiment of the present invention.
Fig. 5 is the three-dimensional appearance schematic diagram of the fourth embodiment of the present invention.
[main element symbol description]
Lithium cell core 1 lower house 2
Cover plate 3 top board 31
Insulating trip 32 first connector assembly 4
Second connector assembly 5 core 6
Negative lug group 61 negative lug 611
612 first times unfilled corners 613 of unfilled corner on first
Positive pole ear group 62 positive pole ear 621
622 second times unfilled corners 623 of unfilled corner on second
Cathode conductive film 7 first location division 71
First extension 72 first conducting strip 73
3rd extension 74 cathode conductive film 8
Second location division 81 second extension 82
Second conducting strip 83 the 4th extension 84
Insulating gum cover 9 insulation board 91.
Detailed description of the invention
Referring to shown in Fig. 1, Fig. 2, it is the first embodiment of lithium cell core 1 of the present invention, including lower house 2, cover plate 3,1 first connector assembly 4,1 second connector assembly 5, an at least core 6, cathode conductive film 7 and a cathode conductive film 8.
This lower house 2 has the hollow rectangular body of opening for top, is equipped with electrolyte solution in lower house 2, and this cover plate 3 covers on lower house 2 top to close this opening.This cover plate 3 includes top board 31 and an insulating trip 32, top board 31 and insulating trip 32 upper-lower overlapping.This first, second connector assembly (4,5) lays respectively at the top of two gum covers on cover plate 3 plate face.
This core 6 is placed in lower house 2, this core 6 preferably forms with a strip positive plate, one first isolating membrane, a strip negative plate and one second separating film layer poststack winding, forming a plurality of negative lug 611 with the side in core 6, this plurality of negative lug 611 stacking is also pressurizeed in a negative lug group 61；And forming a plurality of positive pole ear 621 at the opposite side of core 6, this plurality of positive pole ear 621 stacking is also pressurizeed in a positive pole ear group 62.Negative lug group 61 and the top of positive pole ear group 62 and bottom give corner cut respectively and process, so that the top of negative lug group 61 forms unfilled corner 612 on one first, the bottom of negative lug group 61 forms one first time unfilled corner 613, and making the top of positive pole ear group 62 form unfilled corner 622 on one second, the bottom of positive pole ear group 62 forms one second time unfilled corner 623.
This cathode conductive film 7 is that a flat plate buckling forms, including one first location division 71 and one first extension 72, first extension 72 is downwardly extended in the direction of the first location division 71 with diagrammatic vertical by the side of the first location division 71, so that the first location division 71 and the first extension 72 outline are inverted L-shaped, the vertical length of the first extension 72 is preferably more than the 1/3 of the vertical height of negative lug group 61.First location division 71 and the one first upper and lower laminating of conducting strip 73, first location division 71 and the first conducting strip 73 are positioned at the lower section of cover plate 3, and connect up with riveting method simultaneously and fix the first connector assembly 4, make first location division the 71, first conducting strip 73 and the first connector assembly 4 electrically connect.First extension 72 then connects the negative lug group 61 of core 6 side with welding manner.
And this cathode conductive film 8 is that a flat plate buckling forms, including one second location division 81 and one second extension 82, second extension 82 is downwardly extended in the direction of the second location division 81 with diagrammatic vertical by the side of the second location division 81, so that the second location division 81 and the second extension 82 outline are inverted L-shaped, the vertical length of the second extension 82 is preferably more than the 1/3 of the vertical height of positive pole ear group 62.Second location division 81 and the one second upper and lower laminating of conducting strip 83, second location division 81 and the second conducting strip 83 are positioned at the lower section of cover plate 3, and connect up with riveting method simultaneously and fix the second connector assembly 5, make second location division the 81, second conducting strip 83 and the second connector assembly 5 electrically connect.Second extension 82 then connects the positive pole ear group 62 of core 6 opposite side with welding manner.
Refer to shown in Fig. 3, it is the second embodiment of lithium cell core 1 of the present invention, it is with first embodiment difference: after the first extension 72 and the second extension 82 are respectively through bending, the cross section of the first extension 72 and the cross section of the second extension 82 is made to distinguish the most u-shaped, so as to increasing the bonding area of the first extension 72 and negative lug group 61, and increase the bonding area of the second extension 82 and positive pole ear group 62.
Refer to shown in Fig. 4, it is the 3rd embodiment of lithium cell core 1 of the present invention, wherein, cathode conductive film 7 further includes one the 3rd extension 74,3rd extension 74 is downwardly extended in the direction of the first location division 71 with diagrammatic vertical by the opposite side of the first location division 71, makes first location division the 71, first extension 72 and the 3rd extension 74 in reverse U shape.Cathode conductive film 8 further includes one the 4th extension 84, and the 4th extension 84 is downwardly extended in the direction of the second location division 81 with diagrammatic vertical by the opposite side of the second location division 81, makes second location division the 81, second extension 82 and the 4th extension 84 in reverse U shape.Whereby, i.e. can extend in 74 negative lug groups 61 being welded in different core 6 side respectively by the first extension 72 and the 3rd, and make the second extension 82 and the 4th extension 84 be respectively welded in the positive pole ear group 62 of different core 6 opposite sides, to increase the quantity of core 6 in lower house 2.
And as shown in Figure 5, it is the 4th embodiment of lithium cell core 1 of the present invention, wherein, lower house 2 is made by metal material, one insulating gum cover 9 is sleeved on the outer peripheral edge of core 6, and be folded between core 6 and lower house 2, and an insulation board 91 is positioned bottom cover plate 3 and between core 6 top, to prevent short circuit.
Therefore, the present invention has the advantage that
1, core two side of the present invention forms negative lug group and positive pole ear group respectively, cathode conductive film and cathode conductive film are electrically connected with negative lug group and positive pole ear group in large area mode respectively, therefore, not only can allow conduction voltage and current stabilization, the charge and discharge meeting the big electric current of high magnification use demand, and can effectively dispel the heat, to increase product service life, and guarantee to use safety.
2, the core of the present invention is to give corner cut respectively on negative lug group and the top of positive pole ear group and both sides, bottom to process, therefore, when can fill electrolyte in housing, it is simple to electrolyte is quickly absorbed by positive and negative plate, and prevents short circuit.
3, the negative straps of the present invention can extend the first extension, the 3rd extension simultaneously, positive strap can extend the second extension, the 4th extension simultaneously, therefore, can be respectively welded in the negative lug group and positive pole ear group of different core, to increase the quantity of core, it is provided that the product demand of the big electric current of high magnification.
In sum, according to content disclosed above, the present invention really can reach intended purpose, a kind of charge and discharge that can not only meet the big electric current of high magnification are provided to use demand, can effectively promote conduction and radiating effect, and can ensure that the lithium cell core using safety, the value that great industry utilizes, whence proposes application for a patent for invention in accordance with the law.
Claims (10)
1. a lithium cell core, including a lower house and the cover plate that is covered on this lower house top, this cover plate is provided with one first connector assembly and one second connector assembly, accommodating electrolyte solution and at least one core in this lower house, this core has a negative lug group and a positive pole ear group, this negative lug group is electrically connected with the first connector assembly, and this positive pole ear group is electrically connected with the second connector assembly, it is characterised in that:
This negative lug group and this positive pole ear group lay respectively at two sides of this core；
The bottom of this first connector assembly combines a cathode conductive film, this cathode conductive film includes one first location division and one first extension, this first location division is electrically connected with this first connector assembly, this first extension is downwardly extended in the direction of this first location division with diagrammatic vertical by the side of this first location division, and this first extension connects this negative lug group；And
The bottom of this second connector assembly combines a cathode conductive film, this cathode conductive film includes one second location division and one second extension, this second location division is electrically connected with this second connector assembly, this second extension is downwardly extended in the direction of this second location division with diagrammatic vertical by the side of this second location division, and this second extension connects this positive pole ear group.
2. lithium cell core as claimed in claim 1, it is characterised in that: the cross section of this first extension and the cross section of this second extension are the most u-shaped.
3. lithium cell core as claimed in claim 1 or 2, it is characterised in that: this first location division and this first extension are inverted L-shaped.
4. lithium cell core as claimed in claim 3, it is characterized in that: this negative straps further includes one the 3rd extension, 3rd extension is downwardly extended in the direction of this first location division with diagrammatic vertical by the opposite side of this first location division, and this first location division, this first extension and the 3rd extension are reverse U shape.
5. lithium cell core as claimed in claim 1 or 2, it is characterised in that: this second location division and this second extension are inverted L-shaped.
6. lithium cell core as claimed in claim 5, it is characterized in that: this positive strap further includes one the 4th extension, 4th extension is downwardly extended in the direction of this second location division with diagrammatic vertical by the opposite side of this second location division, and this second location division, this second extension and the 4th extension are reverse U shape.
7. lithium cell core as claimed in claim 1, it is characterized in that: it further includes one first conducting strip and one second conducting strip, this first conducting strip fits on this first location division of this cathode conductive film, and this second conducting strip fits on this second location division of this cathode conductive film.
8. lithium cell core as claimed in claim 1, it is characterised in that: the top of this negative lug group forms unfilled corner on one first, and the bottom of this negative lug group forms one first time unfilled corner.
9. lithium cell core as claimed in claim 1, it is characterised in that: the top of this positive pole ear group forms unfilled corner on one second, and the bottom of this positive pole ear group forms one second time unfilled corner.
10. lithium cell core as claimed in claim 1, it is characterised in that: it further includes an insulating gum cover, and this lower house is metal material, and this this core of insulating gum cover fit, and be folded between this core and this lower house.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295863.0A CN106207276A (en) | 2015-06-02 | 2015-06-02 | Lithium cell core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295863.0A CN106207276A (en) | 2015-06-02 | 2015-06-02 | Lithium cell core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106207276A true CN106207276A (en) | 2016-12-07 |
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ID=57460236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510295863.0A Pending CN106207276A (en) | 2015-06-02 | 2015-06-02 | Lithium cell core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106207276A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428921A (en) * | 2018-02-01 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| EP3719873A4 (en) * | 2017-11-28 | 2020-12-30 | Changzhou Red Fairy Precision Technology Co., Ltd. | Lateral-weld soft connector having pole column |
| WO2022068018A1 (en) * | 2020-09-30 | 2022-04-07 | 广州市凯捷电源实业有限公司 | Storage battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102024988A (en) * | 2010-11-11 | 2011-04-20 | 上海唐一新能源科技有限公司 | Coiled lithium-ion power battery core and manufacturing method thereof |
| CN102544577A (en) * | 2012-03-01 | 2012-07-04 | 宁德新能源科技有限公司 | Special-shaped lithium ion battery and manufacturing method therefor |
| CN202855832U (en) * | 2012-09-21 | 2013-04-03 | 迪吉亚节能科技股份有限公司 | Lithium battery structure |
| CN103296241A (en) * | 2012-03-02 | 2013-09-11 | 深圳市比亚迪锂电池有限公司 | Electrical connector and cell |
| CN204696211U (en) * | 2015-06-02 | 2015-10-07 | 东莞乔登节能科技有限公司 | Lithium cell core |
-
2015
- 2015-06-02 CN CN201510295863.0A patent/CN106207276A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024988A (en) * | 2010-11-11 | 2011-04-20 | 上海唐一新能源科技有限公司 | Coiled lithium-ion power battery core and manufacturing method thereof |
| CN102544577A (en) * | 2012-03-01 | 2012-07-04 | 宁德新能源科技有限公司 | Special-shaped lithium ion battery and manufacturing method therefor |
| CN103296241A (en) * | 2012-03-02 | 2013-09-11 | 深圳市比亚迪锂电池有限公司 | Electrical connector and cell |
| CN202855832U (en) * | 2012-09-21 | 2013-04-03 | 迪吉亚节能科技股份有限公司 | Lithium battery structure |
| CN204696211U (en) * | 2015-06-02 | 2015-10-07 | 东莞乔登节能科技有限公司 | Lithium cell core |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3719873A4 (en) * | 2017-11-28 | 2020-12-30 | Changzhou Red Fairy Precision Technology Co., Ltd. | Lateral-weld soft connector having pole column |
| US11557817B2 (en) | 2017-11-28 | 2023-01-17 | Changzhou Red Fairy Precision Technology Co., Ltd. | Lateral-weld soft connector having pole column |
| CN108428921A (en) * | 2018-02-01 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| US11831028B2 (en) | 2018-02-01 | 2023-11-28 | Contemporary Amperex Technology Co., Limited | Secondary battery |
| WO2022068018A1 (en) * | 2020-09-30 | 2022-04-07 | 广州市凯捷电源实业有限公司 | Storage battery |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |
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