CN205231195U - Box hat cylindrical lithium ion battery - Google Patents
Box hat cylindrical lithium ion battery Download PDFInfo
- Publication number
- CN205231195U CN205231195U CN201520931902.7U CN201520931902U CN205231195U CN 205231195 U CN205231195 U CN 205231195U CN 201520931902 U CN201520931902 U CN 201520931902U CN 205231195 U CN205231195 U CN 205231195U
- Authority
- CN
- China
- Prior art keywords
- box hat
- negative pole
- diapire
- connection piece
- pole connection
- 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
Links
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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a box hat cylindrical lithium ion battery, includes the box hat, and the box hat has ascending opening, is equipped with electric core in the box hat, and the opening part of box hat is connected with the block, is connected with the nickel strap below the electric core, is connected with the negative pole connection piece below the nickel strap, is connected with the soldering tin layer between the diapire of box hat and the negative pole connection piece. Swell towards the diapire of box hat at the bottom surface center of negative pole connection piece, the bottom surface center of negative pole connection piece and bottom surface edge that the distance between the box hat diapire is less than the negative pole connection piece and the distance between the box hat diapire. The integrative fixedly connected with separation blade in bottom surface edge of negative pole connection piece, the lower extreme of separation blade flushes with the bottom surface center of negative pole connection piece mutually. The lower extreme of separation blade leans out the setting. The utility model discloses under the strip nickel strap in present box hat cylindrical lithium ion battery the face bonding flaky nickel piece, this operation can be gone on before the shell is gone into to electric core, in advance with the welding of negative pole connection piece below the nickel strap because this operation goes on in the box hat outside, the operation of consequently being convenient for, and weld effectually.
Description
Technical field
The utility model relates to a kind of lithium ion battery, particularly relates to a kind of box hat cylindrical lithium ion battery.
Background technology
Lithium ion battery energy density is large, good rate capability, and safety, environmental protection, be widely used in electronics and power energy field.Due to the employing of production box hat cylindrical lithium ion battery is that nickel strap is connected with the shell bottom wall of battery, therefore in process of production unstable at the bottom of ubiquity point, consistency is poor, some end rosin joint and the some end cross the problems such as weldering, mainly because some back welding machine stability is wayward with some end copper pin consistency, and some end effect not easily detects.Point end process Problems existing directly affects the performance of box hat cylindrical lithium ion battery, battery consistency and battery qualification rate.
Summary of the invention
The purpose of this utility model is to provide a kind of diapire welding consistency and good stability, box hat cylindrical lithium ion battery that qualification rate is high.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of box hat cylindrical lithium ion battery, comprise box hat, box hat is with opening upwards, battery core is provided with in box hat, the opening part of box hat is connected with block, is connected with nickel strap below battery core, it is characterized in that, be connected with negative straps below nickel strap, between the diapire of box hat and negative straps, be connected with soldering-tin layer.
According to described a kind of box hat cylindrical lithium ion battery, it is characterized in that, the bottom center of described negative straps swells towards the diapire of described box hat, and the distance between the bottom center of negative straps and box hat diapire is less than the distance between the bottom edge of negative straps and box hat diapire.
According to described a kind of box hat cylindrical lithium ion battery, it is characterized in that, the bottom edge of described negative straps is integrally fixedly connected with catch, and the lower end of catch and the bottom center of negative straps flush.
According to described a kind of box hat cylindrical lithium ion battery, it is characterized in that, the outward-dipping setting in lower end of described catch.
The nickel sheet (i.e. negative straps) of sheet has been welded below the strip nickel strap of the utility model in existing box hat cylindrical lithium ion battery, this operation can be carried out before battery core enters shell, in advance negative straps is welded on below nickel strap, because this operation carries out in box hat outside, therefore convenient operation, and welding effect is good, simultaneously, hot melt liquid solder is added dropwise in advance above box hat diapire, and then battery core is put into box hat, negative straps is made to push down liquid solder, treat that soldering tin binds just completes the connection of negative straps and box hat, and welding consistency, good stability, improve conforming product rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of negative straps in the utility model.
In accompanying drawing:
1, block a shot; 2, box hat; 3, battery core; 4, soldering-tin layer; 5, negative straps; 6, nickel strap; 7, catch.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of box hat cylindrical lithium ion battery, as depicted in figs. 1 and 2, comprise box hat 2, box hat 2 is with opening upwards, be provided with battery core 3 in box hat 2, the opening part of box hat 2 is connected with block 1, and battery core 3 is connected with nickel strap 6 below, nickel strap 6 is connected with negative straps 5 below, is connected with soldering-tin layer 4 between the diapire of box hat 2 and negative straps 5.
The bottom center of described negative straps 5 swells towards the diapire of described box hat 2, and the distance between the bottom center of negative straps 5 and box hat 2 diapire is less than the distance between the bottom edge of negative straps 5 and box hat 2 diapire.The bottom edge of described negative straps 5 is integrally fixedly connected with catch 7, and the lower end of catch 7 and the bottom center of negative straps 5 flush.The outward-dipping setting in lower end of described catch 7.
The utility model forms primarily of box hat, block, battery core, negative straps and soldering-tin layer, this box hat is conventional outer nickel plating box hat, block is conventional combination cover cap, battery core is the traditional lithium-ion battery volume heart, negative straps is nickel or copper nickel plating material sheet metal, battery core negative lug and negative straps, by ultrasonic or together with being laser-welded to, accompanied soldering-tin layer between negative straps and box hat diapire, and are connected by soldering-tin layer.Battery core negative lug point is burn-on after metallic nickel sheet, hot melt liquid solder can be added dropwise to above box hat diapire, battery core is put into box hat, metal nickel sheet pushes down liquid solder, treat soldering tin binds, just complete the connection of negative straps and box hat, this box hat cylindrical lithium ion battery consistency and good stability, it is high that qualification rate prepared by battery.
In the utility model, distance between the bottom center of negative straps and box hat diapire is less than the distance between the bottom edge of negative straps and box hat diapire, first contact with liquid solder after hot melt to make the bottom center of negative straps, and then scolding tin is outwards extruded, make the Contact of the diapire of negative straps and box hat closely knit.The bottom edge of negative straps is integrally fixedly connected with catch, when the consumption of hot melt liquid solder is too much, avoids scolding tin outwardly, affects battery quality.
Claims (4)
1. a box hat cylindrical lithium ion battery, comprise box hat (2), box hat (2) is with opening upwards, battery core (3) is provided with in box hat (2), the opening part of box hat (2) is connected with block (1), and battery core (3) is connected with nickel strap (6) below, it is characterized in that, nickel strap (6) is connected with negative straps (5) below, is connected with soldering-tin layer (4) between the diapire of box hat (2) and negative straps (5).
2. a kind of box hat cylindrical lithium ion battery according to claim 1, it is characterized in that, the bottom center of described negative straps (5) swells towards the diapire of described box hat (2), and the distance between the bottom center of negative straps (5) and box hat (2) diapire is less than the distance between the bottom edge of negative straps (5) and box hat (2) diapire.
3. a kind of box hat cylindrical lithium ion battery according to claim 2, is characterized in that, the bottom edge of described negative straps (5) is integrally fixedly connected with catch (7), and the lower end of catch (7) and the bottom center of negative straps (5) flush.
4. a kind of box hat cylindrical lithium ion battery according to claim 3, is characterized in that, the outward-dipping setting in lower end of described catch (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520931902.7U CN205231195U (en) | 2015-11-23 | 2015-11-23 | Box hat cylindrical lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520931902.7U CN205231195U (en) | 2015-11-23 | 2015-11-23 | Box hat cylindrical lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205231195U true CN205231195U (en) | 2016-05-11 |
Family
ID=55906241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520931902.7U Expired - Fee Related CN205231195U (en) | 2015-11-23 | 2015-11-23 | Box hat cylindrical lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205231195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113991260A (en) * | 2021-10-20 | 2022-01-28 | 三一技术装备有限公司 | Battery with a battery cell |
| WO2022206894A1 (en) * | 2021-03-31 | 2022-10-06 | 蜂巢能源科技(无锡)有限公司 | Cylindrical battery |
-
2015
- 2015-11-23 CN CN201520931902.7U patent/CN205231195U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206894A1 (en) * | 2021-03-31 | 2022-10-06 | 蜂巢能源科技(无锡)有限公司 | Cylindrical battery |
| CN113991260A (en) * | 2021-10-20 | 2022-01-28 | 三一技术装备有限公司 | Battery with a battery cell |
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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 |
Granted publication date: 20160511 Termination date: 20161123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |