CN207602676U - Lug, battery core and soft bag lithium ionic cell - Google Patents
Lug, battery core and soft bag lithium ionic cell Download PDFInfo
- Publication number
- CN207602676U CN207602676U CN201721798461.3U CN201721798461U CN207602676U CN 207602676 U CN207602676 U CN 207602676U CN 201721798461 U CN201721798461 U CN 201721798461U CN 207602676 U CN207602676 U CN 207602676U
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- Prior art keywords
- connecting portion
- lug
- exposed portion
- battery core
- thickness
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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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Abstract
The utility model is related to a kind of lug, battery core and soft bag lithium ionic cells.The lug includes connecting portion and the exposed portion being connect with described connecting portion one end, and the thickness of the connecting portion is less than the thickness in the exposed portion, and the area of section in the exposed portion is equal with the area of section of the connecting portion.Above-mentioned lug, including exposed portion and connecting portion, the thickness of connecting portion is less than the thickness in exposed portion, and the area of section of connecting portion is equal to the area of section in exposed portion.So, the smaller connecting portion of thickness is used to be electrically connected positive plate or negative plate, so as to reduce battery core thickness, it is and equal by the way that connecting portion is designed as with the area of section in exposed portion, i.e. the width of connecting portion is more than the width in exposed portion, not only it ensure that lug bore the ability of electric current, but also reduces the internal resistance of battery core.
Description
Technical field
The utility model is related to technical field of lithium ion, more particularly to a kind of lug, battery core and Soft Roll lithium ion
Battery.
Background technology
In recent years, for lithium ion battery as a kind of secondary cell, application is more and more extensive.But with the development of industry,
The especially equipment such as unmanned plane, model plane, startup power supply need lithium ion battery to have the electric current of bigger and smaller internal resistance.Electricity
The design of the lug of core needs to consider that it bears the ability of electric current and its influence to battery core internal resistance.
At present, the lug of battery core is flake on the market, and the size-constrained size in battery, what is be commonly designed is smaller,
Usually, the thickness of lug is thinner, and the thickness of battery core is thinner, and battery volume is smaller, but lug is thinner, and battery core internal resistance is but got over
Greatly, thinner thickness and the relatively low design requirement of internal resistance can not be met.
Utility model content
Based on this, it is necessary to cannot meet battery core thinner thickness and the relatively low design requirement of internal resistance for general lug
Problem provides a kind of lug, battery core and Soft Roll lithium ion that disclosure satisfy that battery core thinner thickness and the relatively low setting requirements of internal resistance
Battery.
Lug, the exposed portion being connect including connecting portion and with described connecting portion one end, the thickness of the connecting portion are less than institute
The thickness in exposed portion is stated, and the area of section in the exposed portion is equal with the area of section of the connecting portion.
Above-mentioned lug, including exposed portion and connecting portion, the thickness of connecting portion is less than the thickness in exposed portion, and section of connecting portion
Face area is equal to the area of section in exposed portion.In this way, the smaller connecting portion of thickness is used to be electrically connected positive plate or negative plate, so as to
Battery core thickness is reduced, and equal by the way that connecting portion is designed as with the area of section in exposed portion, i.e. the width of connecting portion is big
Width in exposed portion not only ensure that lug bore the ability of electric current, but also reduces the internal resistance of battery core.
In one embodiment, the connecting portion is integrally formed with the exposed portion.
In one embodiment, the connecting portion and the exposed portion are rectangular；
The thickness in the exposed portion is 0.08~0.12 millimeter, and the width in the exposed portion is 4~6 millimeters；
The thickness of the connecting portion is 0.04~0.06 millimeter, and the width of the connecting portion is 8~12 millimeters.
Battery core, including positive plate, negative plate, diaphragm and two, as above any lug, the diaphragm are set to institute
It states between positive plate and the negative plate, the connecting portion of one of them lug is electrically connected to the positive plate, another
The connecting portion of a lug is electrically connected to the negative plate.
Above-mentioned battery core, the thickness of the connecting portion of lug is less than the thickness in exposed portion, and the area of section of connecting portion is equal to outer
The area of section in dew portion.In this way, the smaller connecting portion of thickness is electrically connected to positive plate or negative plate, so as to reduce battery core thickness
Degree, and it is equal by the way that connecting portion is designed as with the area of section in exposed portion, i.e., and the width of connecting portion is more than the width in exposed portion
Degree, not only ensure that the ability for bearing electric current, but also reduce the internal resistance of battery core.
In one embodiment, the positive plate, the diaphragm and the negative plate wind to form core in the same direction,
The exposed portion of two lugs is convexly equipped in one end of the core.
In one embodiment, the positive plate, the diaphragm and the negative plate form core, two institutes by lamination
The exposed portion for stating lug is convexly equipped in one end of the core.
In one embodiment, the battery core further includes encapsulating film and two gels, and the encapsulating film is coated on described
Core, and two gels are respectively coated in the exposed portion of two lugs close to one end of the connecting portion, so that
The encapsulating film insulate with the lug.
In one embodiment, the material of the lug being electrically connected with the positive plate is aluminium, with negative plate electricity
The material of the lug of connection is at least one of copper, nickel, copper nickel plating.
In one embodiment, one side surface of positive plate includes anode bonding pad and anode coating area, the anode
Coating area for coat the positive active material containing lithium ion, wherein the connecting portion of a lug be electrically connected to it is described just
Pole bonding pad；
One side surface of negative plate includes cathode bonding pad and cathode coating area, and the cathode coating area is negative for coating
Pole active material, the connecting portion of another lug are electrically connected to the cathode bonding pad.
Soft bag lithium ionic cell, including as above any battery core.
Above-mentioned soft bag lithium ionic cell, including battery core, which includes the lug with exposed portion and connecting portion, and connects
The thickness in portion is less than the thickness in exposed portion, and the area of section of connecting portion is equal to the sectional area in exposed portion.In this way, thickness is smaller
Connection is electrically connected to pole piece, so as to reduce battery core thickness, and by the way that connecting portion and the area of section in exposed portion are designed as
Equal, i.e., the width of connecting portion is more than the width in exposed portion, not only ensure that battery core bore the ability of electric current, but also reduces battery core
Internal resistance.
Description of the drawings
Fig. 1 is the structure diagram of the lug in one embodiment of the utility model；
Fig. 2 is the attachment structure schematic diagram of the lug and positive plate in one embodiment of the utility model；
Fig. 3 is the structure diagram of the battery core in one embodiment of the utility model.
Specific embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments makes to the utility model
The understanding of disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to the technology of the utility model
The normally understood meaning of technical staff in domain is identical.It is only in the term used in the description of the utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more relevant Listed Items.
As shown in Figure 1, the lug 10 in one embodiment of the application, connect including connecting portion 103 and with 103 one end of connecting portion
Exposed portion 101, specifically, connecting portion 103 with positive plate or negative plate for connect, and the thickness of connecting portion 103 is less than exposed
The thickness in portion 101, and the area of section in exposed portion 101 is equal with the area of section of connecting portion 103.
Specifically, connecting portion 103 is integrally formed with exposed portion 101.The thickness of connecting portion 103 is less than the thickness in exposed portion 101
Degree, and the area of section in exposed portion 101 is equal with the area of section of connecting portion 103, i.e., the width of connecting portion 103 is more than exposed portion
101 width.More specifically, exposed portion 101 and connecting portion 103 are sheet metal.
Above-mentioned lug 10, including exposed portion 101 and connecting portion 103, the thickness of connecting portion 103 is less than the thickness in exposed portion 101
Degree, and the area of section of connecting portion 103 is equal to the area of section in exposed portion 101.In this way, the smaller connecting portion 103 of thickness is used for
Positive plate or negative plate are electrically connected, reduces battery core thickness, and by by the area of section of connecting portion 103 and exposed portion 101
It is designed as equal, i.e., the width of connecting portion 103 is more than the width in exposed portion 101, not only ensure that the ability for bearing electric current, but also reduces
The internal resistance of battery core.
It should be noted that the section of the connecting portion 103 is mutually hangs down with being directed toward the direction in exposed portion 101 by connecting portion 103
Straight cross section, the section in the exposed portion 101 is the cross section perpendicular with being directed toward the direction in exposed portion 101 by connecting portion 103.
In one embodiment, connecting portion 103 and exposed portion 101 are rectangular.The thickness in exposed portion 101 for 0.08~
0.12 millimeter, the width in exposed portion 101 is 4~6 millimeters.The thickness of connecting portion 103 is 0.04~0.06 millimeter, connecting portion 103
Width be 8~12 millimeters.
Optionally, the thickness in exposed portion 101 is 0.1 millimeter, and the width in exposed portion 101 is 5 millimeters.The thickness of connecting portion 103
It is 0.05 millimeter to spend, and the width of connecting portion 103 is 10 millimeters.In this way, since lug is thicker, battery core is also thicker, does not meet battery core
Design requirement.Meanwhile lug is thinner, the internal resistance of battery core is bigger, does not also meet the design requirement of battery core.Therefore, above-mentioned size
Connecting portion 103 and exposed portion 101 can meet battery core thinner thickness but also meet the relatively low design requirement of battery core internal resistance.
Specifically, the length in exposed portion 101 is 30~50 millimeters, and the length of connecting portion 103 is 30~50 millimeters.It is optional
Ground, the length in exposed portion 101 is 40 millimeters, and the length of connecting portion 103 is 40 millimeters.
Please also refer to Fig. 2 and Fig. 3, based on above-mentioned lug 10, the application also provides a kind of battery core, including positive plate 20,
The lug 10 of negative plate (not shown), diaphragm (not shown) and two any of the above-described embodiments, diaphragm are set to positive plate and bear
Between pole piece, the connecting portion 103 of one of lug 10 is electrically connected to positive plate 20,103 electricity of connecting portion of another lug 10
It is connected to negative plate.Specifically, diaphragm be polyethylene porous membrane, polypropylene porous film, polyethylene and polyacrylic compound porous
Film or glass fibre perforated membrane etc..
As shown in figure 3, further, positive plate 20, diaphragm and negative plate wind to form core 200 in the same direction, two
The exposed portion 101 of lug 10 is convexly equipped in one end of core 200.It is appreciated that positive plate 20, diaphragm and negative plate form core
200 mode includes but not limited to above-mentioned form, for example, in another embodiment, positive plate 20, diaphragm and negative plate pass through
Lamination forms core 200, and the exposed portion 101 of two lugs 10 is convexly equipped in one end of core 200.
Further, battery core further includes 50 and two gel 30 of encapsulating film, and encapsulating film 50 is coated on core 200, and lug
Glue 30 is coated on exposed portion close to one end of connecting portion 103, so that encapsulating film 50 insulate with lug 10.In this way, the gel 30
Setting so that two lugs 10 are fixed on core 200, and avoid encapsulating film 50 and lug 10 and be in electrical contact and cause short circuit.Tool
Body, encapsulating film 50 can be plastic-aluminum polymer Soft Roll material.
In one embodiment, the connecting portion 103 of lug 10 has a prepsetting gap with gel 30.In another implementation
In example, the connecting portion 103 and gel 30 of lug 10 are very close to each other.
In one embodiment, the material of lug 10 being electrically connected with positive plate 20 be aluminium, the pole being electrically connected with negative plate
The material of ear 10 is one or more in copper, nickel, copper nickel plating.
In one embodiment, 20 1 side surface of positive plate includes anode bonding pad 201 and anode coating area 40, and anode applies
Cover area 40 for coat the positive active material containing lithium ion, wherein the connecting portion 103 of a lug 10 be electrically connected to anode connect
Area 201；One side surface of negative plate includes cathode bonding pad and cathode coating area, and cathode coating area is used to coat negative electrode active material
Matter, the connecting portion 103 of another lug 10 are electrically connected to cathode bonding pad.
Specifically, which can be cobalt acid lithium, LiMn2O4, LiFePO4, nickel-cobalt-manganese ternary
At least one of material etc..Negative electrode active material can be graphite.
Further, two lugs 10 are electrically connected to anode bonding pad 201 and cathode bonding pad by welding respectively.More
Body, two lugs 10 are electrically connected to anode bonding pad 201 and cathode bonding pad by spot welding respectively.
In one embodiment, positive plate 20 is aluminium foil, and negative plate is copper foil.
Based on above-mentioned battery core, the application also provides a kind of lithium ion battery, which includes any of the above-described implementation
The battery core of example.
Above-mentioned lithium ion battery, has the following advantages compared with prior art：The lug 10 of the lithium ion battery includes outer
Dew portion 101 and connecting portion 103, the thickness of connecting portion 103 are less than the thickness in exposed portion 101, and area of section of connecting portion 103 etc.
Area of section in exposed portion 101.In this way, the smaller connecting portion 103 of thickness reduces for being electrically connected positive plate 20 or negative plate
Battery core thickness.The width of connecting portion 103 is more than the width in exposed portion 101, not only ensure that the ability for bearing electric current, but also reduce
The internal resistance of battery core.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. lug, the exposed portion being connect including connecting portion and with described connecting portion one end, which is characterized in that the thickness of the connecting portion
Degree is less than the thickness in the exposed portion, and the area of section in the exposed portion is equal with the area of section of the connecting portion.
2. lug according to claim 1, which is characterized in that the connecting portion is integrally formed with the exposed portion.
3. lug according to claim 1, which is characterized in that it is characterized in that, the connecting portion and the exposed portion are equal
It is rectangular；
The thickness in the exposed portion is 0.08~0.12 millimeter, and the width in the exposed portion is 4~6 millimeters；
The thickness of the connecting portion is 0.04~0.06 millimeter, and the width of the connecting portion is 8~12 millimeters.
4. battery core, which is characterized in that including positive plate, negative plate, diaphragm and two such as claim 1-3 any one of them pole
Ear, the diaphragm are set between the positive plate and the negative plate, and the connecting portion of one of them lug is electrically connected
The positive plate is connected to, the connecting portion of another lug is electrically connected to the negative plate.
5. battery core according to claim 4, which is characterized in that the positive plate, the diaphragm and the negative plate are along together
One direction winds to form core, and the exposed portion of two lugs is convexly equipped in one end of the core.
6. battery core according to claim 4, which is characterized in that the positive plate, the diaphragm and the negative plate pass through
Lamination forms core, and the exposed portion of two lugs is convexly equipped in one end of the core.
7. battery core according to claim 5 or 6, which is characterized in that the battery core further includes encapsulating film and two gels,
The encapsulating film is coated on the core, and two gels are respectively coated in the exposed portion of two lugs close to institute
One end of connecting portion is stated, so that the encapsulating film insulate with the lug.
8. battery core according to claim 4, which is characterized in that the material of the lug being electrically connected with the positive plate is
Aluminium, the material of the lug being electrically connected with the negative plate are at least one of copper, nickel, copper nickel plating.
9. battery core according to claim 4, which is characterized in that one side surface of positive plate is including anode bonding pad and just
Pole coating area, the anode coating area is for coating the positive active material containing lithium ion, wherein the company of a lug
Socket part is electrically connected to the anode bonding pad；
One side surface of negative plate includes cathode bonding pad and cathode coating area, and the cathode coating area is lived for coating cathode
Property substance, the connecting portion of another lug are electrically connected to the cathode bonding pad.
10. soft bag lithium ionic cell, which is characterized in that including the battery core as described in any one of claim 4-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798461.3U CN207602676U (en) | 2017-12-18 | 2017-12-18 | Lug, battery core and soft bag lithium ionic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798461.3U CN207602676U (en) | 2017-12-18 | 2017-12-18 | Lug, battery core and soft bag lithium ionic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207602676U true CN207602676U (en) | 2018-07-10 |
Family
ID=62766419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721798461.3U Active CN207602676U (en) | 2017-12-18 | 2017-12-18 | Lug, battery core and soft bag lithium ionic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207602676U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963176A (en) * | 2018-08-01 | 2018-12-07 | 广州鹏辉能源科技股份有限公司 | Lithium Fe battery positive pole ear and lithium Fe battery |
| CN110137424A (en) * | 2019-06-06 | 2019-08-16 | 东莞市能优能源科技有限公司 | A kind of extreme ear structure and production method of battery |
| CN111725441A (en) * | 2019-03-22 | 2020-09-29 | 宁德新能源科技有限公司 | Battery packaging structure |
-
2017
- 2017-12-18 CN CN201721798461.3U patent/CN207602676U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963176A (en) * | 2018-08-01 | 2018-12-07 | 广州鹏辉能源科技股份有限公司 | Lithium Fe battery positive pole ear and lithium Fe battery |
| CN111725441A (en) * | 2019-03-22 | 2020-09-29 | 宁德新能源科技有限公司 | Battery packaging structure |
| CN111725441B (en) * | 2019-03-22 | 2023-08-11 | 宁德新能源科技有限公司 | Battery packaging structure |
| CN110137424A (en) * | 2019-06-06 | 2019-08-16 | 东莞市能优能源科技有限公司 | A kind of extreme ear structure and production method of battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 516000 63 District, Hui Tai Industrial Park, Zhongkai hi tech Zone, Huizhou, Guangdong Co-patentee after: HUIZHOU TECHNE Corp. Patentee after: HUIZHOU JINNENG BATTERY CO.,LTD. Address before: 516006 63 District, Hui Tai Industrial Park, Zhongkai hi tech Zone, Huizhou, Guangdong Co-patentee before: HUIZHOU TECHNE Corp. Patentee before: HUIZHOU TCL HYPERPOWER BATTERIES Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180824 Address after: 516000 63 District, Hui Tai Industrial Park, Zhongkai hi tech Zone, Huizhou, Guangdong Patentee after: HUIZHOU JINNENG BATTERY CO.,LTD. Address before: 516000 63 District, Hui Tai Industrial Park, Zhongkai hi tech Zone, Huizhou, Guangdong Co-patentee before: HUIZHOU TECHNE Corp. Patentee before: HUIZHOU JINNENG BATTERY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516000 63 District, Hui Tai Industrial Park, Zhongkai hi tech Zone, Huizhou, Guangdong Patentee after: Huizhou Yiwei Energy Battery Co.,Ltd. Address before: 516000 63 District, Hui Tai Industrial Park, Zhongkai hi tech Zone, Huizhou, Guangdong Patentee before: HUIZHOU JINNENG BATTERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230905 Address after: 516000 No. 38, Huifeng 7th Road, Zhongkai High-tech Zone, Huizhou City, Guangdong Province Patentee after: EVE ENERGY Co.,Ltd. Address before: 516000 63 District, Hui Tai Industrial Park, Zhongkai hi tech Zone, Huizhou, Guangdong Patentee before: Huizhou Yiwei Energy Battery Co.,Ltd. |