CN204361180U - A kind of cylinder lithium ion battery - Google Patents
A kind of cylinder lithium ion battery Download PDFInfo
- Publication number
- CN204361180U CN204361180U CN201420468827.0U CN201420468827U CN204361180U CN 204361180 U CN204361180 U CN 204361180U CN 201420468827 U CN201420468827 U CN 201420468827U CN 204361180 U CN204361180 U CN 204361180U
- Authority
- CN
- China
- Prior art keywords
- negative electrode
- electrode lug
- battery
- lithium ion
- opening
- 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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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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a kind of cylinder lithium ion battery, belongs to lithium ion battery field.Concrete technical scheme is: a kind of cylinder lithium ion battery, comprises battery core, be provided with cylindrical housings outside battery core, anode ear and negative electrode lug is provided with in housing, described housing upper is provided with opening, is provided with block in opening, negative electrode lug housing upper sidewall and block between and draw from opening.It is avoiding the contact stabilization strengthening negative electrode lug and housing under the prerequisite damaging battery core, and negative electrode lug and shell wall contact area increase 4-8 doubly, and internal resistance reduces about 1-10m Ω, and contact area increases, and battery anti-vibration or collision impact ability increase greatly.
Description
Technical field
The utility model relates to a kind of lithium battery.
Background technology
Lithium battery is a class is negative material by lithium metal or lithium alloy, uses the battery of non-aqueous electrolytic solution.The lithium battery occurred the earliest comes from great inventor Edison, uses following reaction: this reaction of Li+MnO2=LiMnO2 is redox reaction, electric discharge.Cylindrical lithium ion battery structure on existing market is that negative electrode lug is drawn from housing bottom, and negative electrode lug is connected to housing bottom by the mode of carrying out spot welding by inserting a some capillary in the middle of battery core.There are three distinct disadvantage in this processing mode: operating efficiency is low, the fashionable fragile battery core of spot welding cushion; Because pad is the round dot that diameter is about 1mm, negative lug and housing direct contact surface amass little, and contact internal resistance is larger; Battery is shaken or after sharp impacts impact, this solder joint easily comes off.Thus cause battery functi on to lose efficacy.
Utility model content
In order to overcome the deficiencies in the prior art, the technical problems to be solved in the utility model is at the contact stabilization avoiding strengthening under the prerequisite damaging battery core negative electrode lug and housing.
For solving the problem, the technical scheme that the utility model adopts is as follows: a kind of cylinder lithium ion battery, comprise battery core, cylindrical housings is provided with outside battery core, anode ear and negative electrode lug is provided with in housing, described housing upper is provided with opening, is provided with block in opening, negative electrode lug housing upper sidewall and block between and draw from opening.
Compared to existing technology, the beneficial effects of the utility model are: improve for defect of the prior art, after improvement, negative electrode lug is drawn from housing oral area, negative electrode lug is between block and shell wall, by mechanical external force effect, negative electrode lug is sealed to faucal position during sealing, negative electrode lug and shell wall close contact.Owing to not needing insertion point capillary in the middle of battery core to carry out spot welding, substantially increase production efficiency.Negative electrode lug and shell wall contact area increase 4-8 doubly simultaneously, and internal resistance reduces about 1-10m Ω, and contact area increases, and battery anti-vibration or collision impact ability improve greatly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, mark is described as follows:
1, housing; 2, block a shot; 3, anode ear; 4, negative electrode lug; 5, opening.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of cylinder lithium ion battery, comprises battery core, be provided with cylindrical housings 1 outside battery core, be provided with anode ear 3 and negative electrode lug 4 in housing 1, housing 1 top is provided with opening 5, be provided with block 2 in opening 5, negative electrode lug 4 housing 1 upper portion side wall and block 2 between and draw from opening 5.
By mechanical external force effect, negative electrode lug is sealed to shell nozzle position during sealing, negative electrode lug and shell wall close contact.Do not need insertion point capillary in the middle of battery core to carry out spot welding, improve production efficiency.And negative electrode lug and shell wall contact area increase 4-8 doubly, internal resistance reduces about 1-10m Ω.Simultaneously because contact area increases, battery anti-vibration or collision impact ability improve greatly.
Lug is a kind of raw material of lithium ion polymer battery product.The battery of mobile phone such as, used in our life, Notebook Battery etc. all need to use lug.Battery is a point both positive and negative polarity, and lug is exactly the metallic conductor extracted by both positive and negative polarity from battery core, and the ear of battery positive and negative polarities is the contact points when carrying out discharge and recharge in popular saying.This contact point is not that copper sheet of the battery appearance that we see, but the one of inside battery connects.Lug is divided into three kinds of materials, and the positive pole of battery uses aluminium (Al) material, and negative pole uses nickel (Ni) material, and negative pole also has copper nickel plating (Ni-Cu) material, and they are all be composited by film and metal tape two parts.
Cylindrical lithium ion battery structure on existing market is that negative electrode lug is drawn from housing bottom, and play welding stability strong not, and cause damage to battery core, internal resistance is also larger.Adopt structure as shown in Figure 1, just can avoid the damage to battery core, the contact area of negative electrode lug and housing can also be increased, both connective stabilities while reducing internal resistance, can also be strengthened.
Above-mentioned execution mode is only preferred implementation of the present utility model; can not limit the scope of the utility model protection with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present utility model all belong to the utility model scope required for protection.
Claims (1)
1. a cylinder lithium ion battery, comprises battery core, is provided with cylindrical housings outside battery core, anode ear and negative electrode lug is provided with in housing, it is characterized in that: described housing upper is provided with opening, is provided with block in opening, negative electrode lug housing upper sidewall and block between and draw from opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468827.0U CN204361180U (en) | 2014-08-19 | 2014-08-19 | A kind of cylinder lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468827.0U CN204361180U (en) | 2014-08-19 | 2014-08-19 | A kind of cylinder lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361180U true CN204361180U (en) | 2015-05-27 |
Family
ID=53262633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420468827.0U Expired - Fee Related CN204361180U (en) | 2014-08-19 | 2014-08-19 | A kind of cylinder lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204361180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514480A (en) * | 2016-02-01 | 2016-04-20 | 陈佩 | Cylindrical lithium ion battery and method for packaging negative terminal |
-
2014
- 2014-08-19 CN CN201420468827.0U patent/CN204361180U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514480A (en) * | 2016-02-01 | 2016-04-20 | 陈佩 | Cylindrical lithium ion battery and method for packaging negative terminal |
| CN105514480B (en) * | 2016-02-01 | 2019-01-15 | 陈佩 | The packaging method of column lithium ion battery and negative pole end |
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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: 20150527 Termination date: 20150819 |
|
| EXPY | Termination of patent right or utility model |