CN205790219U - A kind of full lug cylindrical steel case lithium ion battery - Google Patents
A kind of full lug cylindrical steel case lithium ion battery Download PDFInfo
- Publication number
- CN205790219U CN205790219U CN201620536723.8U CN201620536723U CN205790219U CN 205790219 U CN205790219 U CN 205790219U CN 201620536723 U CN201620536723 U CN 201620536723U CN 205790219 U CN205790219 U CN 205790219U
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- CN
- China
- Prior art keywords
- negative pole
- sheet
- lithium ion
- ion battery
- cylindrical steel
- Prior art date
- 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.)
- Expired - Fee Related
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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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
This utility model belongs to cell art, particularly to one full lug cylindrical steel case lithium ion battery, conflux sheet and negative pole connecting stud including conflux sheet, box hat, battery core, negative pole of block, positive pole, battery core is arranged in box hat, the positive pole sheet that confluxes is arranged between the head of battery core and block, the negative pole sheet that confluxes is arranged between the bottom of battery core and the bottom of box hat, negative pole connecting stud is connected with the bottom of box hat, conflux the first central part of sheet of negative pole is set to female thread structure, and the negative pole sheet that confluxes is spirally connected with negative pole connecting stud and is connected.Relative to prior art, the sheet that confluxes of the negative pole in this utility model is spirally connected with negative pole connecting stud and is connected, and contact area is big, and it is firm to contact, and without rosin joint solder skip phenomenon, internal resistance is little, and temperature rise is low, and high rate performance has the biggest lifting；Additionally this utility model uses box hat as housing, low cost, and welding sequence is few, and operation is simple, and processing procedure is easy to control, and production efficiency is high, it is easy to realize automatization.
Description
Technical field
This utility model belongs to cell art, particularly to one full lug cylindrical steel case lithium ion battery.
Background technology
Lithium ion battery, as environmental protection new forms of energy, has good reliability, that safety is high, volume is little, lightweight etc. is excellent
Point, has been widely used in the fields such as digital products, electric automobile, war products.Along with country is to new forms of energy
Vigorously support, the development of lithium ion battery is like a raging fire, but the requirement to lithium ion battery is more and more higher, at present, lithium from
Sub-battery just develops towards high-energy, high life, high safety and powerful direction.
Cylindrical battery uses takeup type to process because of it, simple in construction, and production efficiency is high and is generalized.The most small-sized circle
Post battery many employings gap coating method, needs soldering polar ear, and typically has 1-4 lug, finally by all poles before electric core winding
Ear is welded to together, and this process is complicated, the longest, and production efficiency is low, and cost is high, and is difficult to automatization, is also easy to
Rosin joint, solder skip occur or cross welding phenomena, causing battery core internal resistance big, concordance is poor.According to full lug end face weld technique, and adopt
With aluminum hull as housing, then welding sequence is more, and complex procedures is relatively costly.
In view of this, a kind of full lug cylindrical steel case lithium ion battery of necessary offer, it can improve battery
High power charging-discharging ability, reduces the welding sequence during battery structure assembles, improves homogeneity of product, it is ensured that conforming product rate.
Utility model content
The purpose of this utility model is: for the deficiencies in the prior art, and provides a kind of full lug cylindrical steel lithium
Ion battery, it can improve the high power charging-discharging ability of battery, reduce the welding sequence during battery structure assembles, improve and produce
Product concordance, it is ensured that conforming product rate.
To achieve these goals, this utility model is adopted the following technical scheme that
A kind of full lug cylindrical steel case lithium ion battery, confluxes including conflux sheet, box hat, battery core, negative pole of block, positive pole
Sheet and negative pole connecting stud, described battery core is arranged in described box hat, and the described positive pole sheet that confluxes is arranged at the head of described battery core
With between described block, the described negative pole sheet that confluxes is arranged between the bottom of described battery core and the bottom of described box hat, described negative
Pole connecting stud is connected with the bottom of described box hat, and conflux the first central part of sheet of described negative pole is set to female thread structure, institute
State the negative pole sheet that confluxes to be spirally connected with described negative pole connecting stud and be connected.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, the described negative pole sheet that confluxes includes
First substrate and be folded up by described first substrate, first weld part with the bathtub construction that Open Side Down, described
One weld part is set at least two, and one end of described first weld part is all connected with described first central part.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, at the circle of described first substrate
In circumferential direction, described first weld part is uniformly distributed, and the upper surface of described first weld part and described first central part
Top is concordant.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, described first substrate is arranged
There are several the first waist through hole.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, the described positive pole sheet that confluxes includes
Second substrate, the second central part and rolled over downwards, have second weld part of bathtub construction of opening upwards by described second substrate,
Described second weld part is set at least two, and one end of described second weld part is all connected with described second central part.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, at the circle of described second substrate
In circumferential direction, described second weld part is uniformly distributed, and the upper surface of described second weld part and described second central part
Top is concordant.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, described second substrate is arranged
There are several the second waist through hole.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, the edge of described second substrate
Place is extended with, towards the second central part of described second substrate, the portable plate that one end can be freely movable.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, the top of described battery core is formed
Have the first cell body mated with described first weld part, described battery core be centrally formed with centre bore.
As a kind of improvement of this utility model full lug cylindrical steel case lithium ion battery, the bottom of described battery core is formed
There is the second cell body mated with described second weld part.
Relative to prior art, the sheet that confluxes of the negative pole in this utility model is spirally connected with negative pole connecting stud and is connected, contact surface
Long-pending big, it is firm to contact, and without rosin joint solder skip phenomenon, internal resistance is little, and temperature rise is low, and high rate performance has the biggest lifting；Additionally the present invention gets rid of
Having abandoned the aluminum hull housing that traditional full lug end face weld is used, used box hat as housing, low cost, welding sequence is few, work
Sequence is simple, and processing procedure is easy to control, and production efficiency is high, it is easy to realizes automatization, has the biggest using value.
Accompanying drawing explanation
Fig. 1 is assembling sectional structure chart of the present utility model.
Fig. 2 is that in this utility model, negative pole confluxes the structural representation of sheet.
Fig. 3 is the profile after box hat welds with negative pole connecting stud in this utility model.
Fig. 4 is that in this utility model, positive pole confluxes the structural representation of sheet.
Fig. 5 be this utility model shakes flat after the structural representation of battery core.
Detailed description of the invention
Below in conjunction with embodiment, this utility model and beneficial effect thereof are described in further detail, but this utility model
Embodiment be not limited to this.
As shown in Figures 1 to 5, a kind of full lug cylindrical steel case lithium ion battery that this utility model provides, including lid
Conflux sheet 2, box hat 3, battery core 4, negative pole of cap 1, positive pole confluxes sheet 5 and negative pole connecting stud 6, and battery core 4 is arranged in box hat 3, just
The pole sheet 2 that confluxes is arranged between the head of battery core 4 and block 1, and the negative pole sheet 5 that confluxes is arranged at bottom and the end of box hat 3 of battery core 4
Between portion, negative pole connecting stud 6 is connected with the bottom of box hat 3, is preferably and uses electric resistance welding or ultrasonic welding process, negative
Conflux the first central part 54 of sheet 5 of pole is set to female thread structure, and the negative pole sheet 5 that confluxes is spirally connected with negative pole connecting stud 6 and is connected.Its
In, conflux the first central part 54 of sheet 5 of negative pole is female thread structure, and negative pole connecting stud 6 be external thread structure, the two screw thread company
Connect, and the length >=3mm of screw thread, to ensure the intensity and the contact area that connect.The material of negative pole connecting stud 6 is copper nickel plating,
The material of box hat 3 is nickel-plated steel, and thickness is 0.2-0.8mm.The two ends lug of battery core 4 is the flat structure that shakes, shake flat after for rice word, ten
Word, herringbone or plane rub flat structure, be respectively welded positive pole conflux sheet 2 and negative pole converges at the both positive and negative polarity end face flat place that shakes when battery assembles
Flow 5, the bottom welding of negative pole connecting stud 6 and box hat 3, then the negative pole sheet 5 that confluxes is threadeded with negative pole connecting stud 6,
The positive pole sheet 2 that confluxes is connected with block 1, seals afterwards and i.e. completes battery core and make.This utility model is by threadably
Make negative current collector be connected with housing, thus solve traditional side making negative pole be connected with housing with the some end of centre bore
Formula, mode contact area at the bottom of traditional point is little, and rosin joint is serious, and battery core high rate performance is poor, this utility model not only base contact surface
Long-pending big, and without rosin joint phenomenon, the high rate performance of battery core significantly improves；The most traditional end face weld battery core typically uses aluminum hull, aluminum
Shell cost is high, and welding sequence is many, and this utility model then uses box hat, not only reduces cost, and decreases operation, technique letter
Single, there is the biggest actual application value.
Box hat 3 uses twice impact style, to ensure the sealing of battery core with the sealing part of block 1.The fixing of battery core 4 is adopted
By roller groove technique, roller groove depth is 1.8-2.3mm.
Negative pole conflux sheet 5 include first substrate 51 and be folded up by first substrate 51, there is the flute profile that Open Side Down
First weld part 53 of structure 52, the first weld part 53 is set at least two, and one end of the first weld part 53 is all with
One central part 54 connects.On the circumferencial direction of first substrate 51, the first weld part 53 is uniformly distributed, and the first weld part 53
Upper surface and the top of the first central part 54 concordant, the first weld part 53 is for being connected with negative lug.In the present embodiment, the
One weld part 53 is set to three, two-by-two mutually in hexagonal angle.
Several the first waist through hole 55 it are provided with on first substrate 51.
Positive pole conflux sheet 2 include second substrate the 21, second central part 22 and rolled over downwards by second substrate 21, have opening to
On the second weld part 24 of bathtub construction 23, the second weld part 24 is set at least two, and the one of the second weld part 24
End is all connected with the second central part 22.On the circumferencial direction of second substrate 21, the second weld part 24 is uniformly distributed, and second
The upper surface of weld part 24 and the top of the second central part 22 are concordant, and the second weld part 24 is for being connected with positive pole ear.This reality
Executing in example, the second weld part 24 is set to three, two-by-two mutually in hexagonal angle.
Several the second waist through hole 25 it are provided with on second substrate 21.
The edge of second substrate 21 is extended with one end towards the second central part 22 of second substrate 21 can be freely movable
Portable plate 26.
The top of battery core 4 is formed with the first cell body 41 mated with the first weld part 53, battery core 4 be centrally formed with center
Hole 42.
The bottom of battery core 4 is formed with the second cell body mated with the second weld part 24.
Concrete assembling process of the present utility model is as follows:
The first step, forms battery core 4 through winding, then by fixture by battery core 4 two ends by positive/negative plate and isolating membrane
Collector shakes flat or rubs flat, to facilitate welding both positive and negative polarity pole lug；
Second step, is shaking flat or is rubbing and weld positive pole at the positive pole ear of flat battery core 4 and conflux at sheet 2, negative lug
Welding negative pole confluxes sheet 5；
3rd step, is welded to the bottom centre of box hat 3 by the way of electric resistance welding or supersonic welding by negative pole connecting stud 6
Place；
4th step, the negative pole of the battery core the 3rd step obtained confluxes sheet 5 and negative pole connecting stud 6 downlink connection threadably
Getting up, i.e. complete battery core 4 enters shell.
5th step, carries out box hat 3 roller groove afterwards, and the degree of depth of roller groove is 1.8-2.3mm.
6th step, the sheet 2 that confluxed by positive pole welds with block 1.
7th step, fluid injection after the battery core completing above operation being toasted, punching press afterwards is sealed, is i.e. completed battery core
Make.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be to above-mentioned reality
The mode of executing changes and revises.Therefore, this utility model is not limited to detailed description of the invention disclosed and described above, right
Modifications and changes more of the present utility model should also be as falling in scope of the claims of the present utility model.Additionally, to the greatest extent
Pipe this specification employs some specific terms, but these terms are merely for convenience of description, not to this utility model
Constitute any restriction.
Claims (10)
1. a full lug cylindrical steel case lithium ion battery, it is characterised in that: include that block, positive pole are confluxed sheet, box hat, electricity
Core, negative pole conflux sheet and negative pole connecting stud, and described battery core is arranged in described box hat, and the described positive pole sheet that confluxes is arranged at described
Between head and the described block of battery core, described negative pole conflux sheet be arranged at the bottom of described battery core and described box hat bottom it
Between, described negative pole connecting stud is connected with the bottom of described box hat, and conflux the first central part of sheet of described negative pole is set to interior spiral shell
Stricture of vagina structure, the described negative pole sheet that confluxes is spirally connected with described negative pole connecting stud and is connected.
Full lug cylindrical steel case lithium ion battery the most according to claim 1, it is characterised in that: described negative pole confluxes sheet
Including first substrate and be folded up by described first substrate, first weld part with the bathtub construction that Open Side Down, institute
State the first weld part and be set at least two, and one end of described first weld part is all connected with described first central part.
Full lug cylindrical steel case lithium ion battery the most according to claim 2, it is characterised in that: at described first substrate
Circumferencial direction on, described first weld part is uniformly distributed, and the upper surface of described first weld part and described first center
The top in portion is concordant.
Full lug cylindrical steel case lithium ion battery the most according to claim 2, it is characterised in that: on described first substrate
It is provided with several the first waist through hole.
Full lug cylindrical steel case lithium ion battery the most according to claim 1, it is characterised in that: described positive pole confluxes sheet
Including second substrate, the second central part and the second weldering of the bathtub construction being rolled over downwards, having opening upwards by described second substrate
Meeting portion, described second weld part is set at least two, and one end of described second weld part all with described second central part
Connect.
Full lug cylindrical steel case lithium ion battery the most according to claim 5, it is characterised in that: at described second substrate
Circumferencial direction on, described second weld part is uniformly distributed, and the upper surface of described second weld part and described second center
The top in portion is concordant.
Full lug cylindrical steel case lithium ion battery the most according to claim 5, it is characterised in that: on described second substrate
It is provided with several the second waist through hole.
Full lug cylindrical steel case lithium ion battery the most according to claim 5, it is characterised in that: described second substrate
Edge is extended with, towards the second central part of described second substrate, the portable plate that one end can be freely movable.
Full lug cylindrical steel case lithium ion battery the most according to claim 2, it is characterised in that: the top of described battery core
Be formed with the first cell body mated with described first weld part, described battery core be centrally formed with centre bore.
Full lug cylindrical steel case lithium ion battery the most according to claim 5, it is characterised in that: the end of described battery core
Portion is formed with the second cell body mated with described second weld part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536723.8U CN205790219U (en) | 2016-06-02 | 2016-06-02 | A kind of full lug cylindrical steel case lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536723.8U CN205790219U (en) | 2016-06-02 | 2016-06-02 | A kind of full lug cylindrical steel case lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205790219U true CN205790219U (en) | 2016-12-07 |
Family
ID=58134106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620536723.8U Expired - Fee Related CN205790219U (en) | 2016-06-02 | 2016-06-02 | A kind of full lug cylindrical steel case lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205790219U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848170A (en) * | 2017-03-24 | 2017-06-13 | 苏州工业园区恒量咨询有限公司 | Electrochemical device and preparation method thereof |
| CN107968165A (en) * | 2017-11-13 | 2018-04-27 | 泰兴市振兴电子有限公司 | A kind of screw-type lithium battery cap |
| CN109755453A (en) * | 2017-11-07 | 2019-05-14 | 横店集团东磁股份有限公司 | A kind of cylindrical battery that negative lug is no-welding |
| CN109904380A (en) * | 2019-03-26 | 2019-06-18 | 阮孟雪 | A kind of circle high power lithium ion cell structure and preparation method thereof |
| CN111900452A (en) * | 2020-06-24 | 2020-11-06 | 湖南科霸汽车动力电池有限责任公司 | Vertical sealed cylindrical battery and preparation method thereof |
| CN112290168A (en) * | 2020-10-16 | 2021-01-29 | 武汉逸飞激光设备有限公司 | Full-tab lithium battery and preparation method thereof |
| CN112993491A (en) * | 2021-02-05 | 2021-06-18 | 刘昌国 | Lithium battery, battery cell and assembly method |
| CN113067061A (en) * | 2021-03-11 | 2021-07-02 | 惠州亿纬锂能股份有限公司 | Lithium ion battery and preparation method thereof |
| CN113517519A (en) * | 2021-03-19 | 2021-10-19 | 天津荣盛盟固利新能源科技有限公司 | Bus bar structure and welding method |
| CN115347329A (en) * | 2022-06-30 | 2022-11-15 | 广西宁福新能源科技有限公司 | Novel cylindrical lithium battery busbar structure, battery cell and manufacturing process thereof |
| WO2023185493A1 (en) * | 2022-03-28 | 2023-10-05 | 蓝京新能源(嘉兴)有限公司 | Cylindrical battery and assembly process therefor |
-
2016
- 2016-06-02 CN CN201620536723.8U patent/CN205790219U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848170B (en) * | 2017-03-24 | 2023-04-18 | 苏州景尊企业管理合伙企业(有限合伙) | Electrochemical device and method for manufacturing the same |
| CN106848170A (en) * | 2017-03-24 | 2017-06-13 | 苏州工业园区恒量咨询有限公司 | Electrochemical device and preparation method thereof |
| CN109755453A (en) * | 2017-11-07 | 2019-05-14 | 横店集团东磁股份有限公司 | A kind of cylindrical battery that negative lug is no-welding |
| CN107968165A (en) * | 2017-11-13 | 2018-04-27 | 泰兴市振兴电子有限公司 | A kind of screw-type lithium battery cap |
| CN109904380A (en) * | 2019-03-26 | 2019-06-18 | 阮孟雪 | A kind of circle high power lithium ion cell structure and preparation method thereof |
| CN111900452A (en) * | 2020-06-24 | 2020-11-06 | 湖南科霸汽车动力电池有限责任公司 | Vertical sealed cylindrical battery and preparation method thereof |
| CN112290168B (en) * | 2020-10-16 | 2022-11-08 | 武汉逸飞激光股份有限公司 | Full-tab lithium battery and preparation method thereof |
| CN112290168A (en) * | 2020-10-16 | 2021-01-29 | 武汉逸飞激光设备有限公司 | Full-tab lithium battery and preparation method thereof |
| CN112993491A (en) * | 2021-02-05 | 2021-06-18 | 刘昌国 | Lithium battery, battery cell and assembly method |
| CN113067061A (en) * | 2021-03-11 | 2021-07-02 | 惠州亿纬锂能股份有限公司 | Lithium ion battery and preparation method thereof |
| CN113067061B (en) * | 2021-03-11 | 2023-06-30 | 惠州亿纬锂能股份有限公司 | Lithium ion battery and preparation method thereof |
| CN113517519A (en) * | 2021-03-19 | 2021-10-19 | 天津荣盛盟固利新能源科技有限公司 | Bus bar structure and welding method |
| CN113517519B (en) * | 2021-03-19 | 2023-02-17 | 天津荣盛盟固利新能源科技有限公司 | Welding method |
| WO2023185493A1 (en) * | 2022-03-28 | 2023-10-05 | 蓝京新能源(嘉兴)有限公司 | Cylindrical battery and assembly process therefor |
| CN115347329A (en) * | 2022-06-30 | 2022-11-15 | 广西宁福新能源科技有限公司 | Novel cylindrical lithium battery busbar structure, battery cell and manufacturing process thereof |
| CN115347329B (en) * | 2022-06-30 | 2024-04-26 | 广西宁福新能源科技有限公司 | Novel busbar structure of cylindrical lithium battery, battery core and manufacturing process of novel busbar structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20190602 |