CN202513227U - Electrode leading-out structure for lithium battery - Google Patents
Electrode leading-out structure for lithium battery Download PDFInfo
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- CN202513227U CN202513227U CN2012201739619U CN201220173961U CN202513227U CN 202513227 U CN202513227 U CN 202513227U CN 2012201739619 U CN2012201739619 U CN 2012201739619U CN 201220173961 U CN201220173961 U CN 201220173961U CN 202513227 U CN202513227 U CN 202513227U
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- electrode
- lithium battery
- electrode column
- connecting portion
- deriving structure
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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 provides an electrode leading-out structure for a lithium battery, belongs to the technical field of lithium batteries, and solves the problem that heat cannot be radiated because of high resistance and large heat amount of the conventional lithium battery. According to the electrode leading-out structure for the lithium battery, the lithium battery comprises a shell, a battery core arranged in the shell and an electrode leading-out structure which is connected with the battery core and partially extends out of the shell, wherein the electrode leading-out structure comprises a cylindrical electrode post; a thread is formed on the part, which extends out of the shell, of the outer end of the electrode post; the inner end of the electrode post is provided with a connecting part which is used for increasing the connecting area between the electrode post and the battery core; and the electrode post is connected with the battery core through the connecting part. The electrode leading-out structure for the lithium battery has the advantages of simple structure, small heat amount and the like.
Description
Technical field
The utility model belongs to technical field of lithium batteries, relates to a kind of electrode deriving structure of lithium battery.
Background technology
Lithium battery is owing to have advantages such as in light weight, that volume is little, capacitance is big, charging rate is very fast, is widely used on all kinds of numbers, the communication product such as notebook computer.Yet, lithium battery is used for moving occasion or the more violent occasion of vibration, when for example being used for motor vehicle, military use etc., the wild effect of battery quality has but taken place.Through long-term use, the wild effect of lithium battery quality when finding in this type occasion, to use, quality Control during Production problem no thanks to, and relevant with the structure of lithium battery.
The lithium battery of this type occasion use at present is generally quadrate lithium battery, comprises housing and the both positive and negative polarity pole piece, barrier film and the electrolyte that are contained in the housing; Pole piece is provided with lug, housing one end opening, and cover opening by cap; Cap and housing are asked through welding and are formed hermetically-sealed construction; Said cap is provided with two electrode fairleads, is connected with anode electrode deriving structure and negative electrode deriving structure respectively, wherein; Described electrode deriving structure is that electrode lug, sealing ring, electrode punching are fastened on the cap with screw.
In the above-mentioned lithium battery, because the electrode of lithium cell deriving structure contacts for point with electric core, its contact area is little, and resistance is bigger, and is more through the heat of out-of-date generation at electric current, and the radiating effect difference causes the temperature of lithium battery high, reduces useful life.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed the electrode deriving structure of the lithium battery that a kind of resistance is little, caloric value is few.
The purpose of the utility model can realize through following technical proposal:
A kind of electrode deriving structure of lithium battery; Lithium battery comprises housing, be located in the housing electric core be connected with electric core and part is stretched out the electrode deriving structure of housing; It is characterized in that described electrode deriving structure comprises cylindrical electrode column, the outer end of said electrode column is stretched out on the part of housing and is had screw thread; The inner of said electrode column has and is used to increase the connecting portion that is connected area with electric core, and above-mentioned electrode column is connected with described electric core through this connecting portion.
The electrode deriving structure of lithium battery has increased the contact area of electrode column and electric core, makes resistance, and caloric value is little, has effectively prolonged the useful life of lithium battery.
In the electrode deriving structure of above-mentioned lithium battery, described connecting portion is bar shaped and described connecting portion perpendicular to the electrode column setting.Being connected of convenient and electric core is set like this.
In the electrode deriving structure of above-mentioned lithium battery, the inner of said electrode column is positioned at the middle part of said connecting portion, and described electrode column and connecting portion are integral structure.
In the electrode deriving structure of above-mentioned lithium battery, also have the restriction electrode column on the described electrode column with respect to the limiting section of the circumferential rotation of lithium battery housing, described limiting section be square and with above-mentioned electrode column be integral structure.
Limiting section can improve the shake-proof ability of this lithium battery, prolongs its useful life.
In the electrode deriving structure of above-mentioned lithium battery, described electrode column adopts aluminium or copper to become.When as anodal the use, adopt aluminium to process; When using, adopt copper to become as negative pole.
Compared with prior art, the electrode deriving structure of this lithium battery has the following advantages:
The electrode deriving structure of lithium battery has increased the contact area of electrode column and electric core, makes resistance, and caloric value is little, has effectively prolonged the useful life of lithium battery; And it is simple in structure, reasonable in design, low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of the electrode deriving structure of this lithium battery.
Among the figure, 1, electrode column; 11, connecting portion; 12, limiting section.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Lithium battery comprises housing, be located in the housing electric core be connected with electric core and part is stretched out the electrode deriving structure of housing.
As shown in Figure 1, the electrode deriving structure comprises cylindrical electrode column 1, and the outer end of electrode column 1 is stretched out on the part of housing and had screw thread, and this screw thread can sheathed nut.The inner of electrode column 1 has and is used to increase the connecting portion 11 that is connected area with electric core; Electrode column 1 is connected with electric core through this connecting portion 11, and the electrode deriving structure of lithium battery has increased the contact area of electrode column 1 with electric core, makes resistance; Caloric value is little, effectively prolongs the useful life of lithium battery.
As shown in Figure 1, this connecting portion 11 is bar shaped and connecting portion 11 and is provided with perpendicular to electrode column 1, and being connected of convenient and electric core is set like this.Concrete, as shown in Figure 1, the inner of electrode column 1 is positioned at the middle part of connecting portion 11, and electrode column 1 is an integral structure with connecting portion 11.
As shown in Figure 1, also have the limiting section 12 of restriction electrode column 1 on the electrode column 1 with respect to the circumferential rotation of lithium battery housing, limiting section 12 is square and is integral structure with electrode column 1.Limiting section 12 can improve the shake-proof ability of this lithium battery, prolongs its useful life.
In the present embodiment, when electrode column 1 conduct is anodal, adopt aluminium to process; When electrode column 1 during, adopt copper to become as negative pole.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as electrode column 1, connecting portion 11, limiting section 12 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (5)
1. the electrode deriving structure of a lithium battery; Lithium battery comprises housing, be located in the housing electric core be connected with electric core and part is stretched out the electrode deriving structure of housing; It is characterized in that; Described electrode deriving structure comprises cylindrical electrode column (1); The outer end of said electrode column (1) is stretched out on the part of housing and is had screw thread, and the inner of said electrode column (1) has and is used to increase the connecting portion (11) that is connected area with electric core, and above-mentioned electrode column (1) is connected with described electric core through this connecting portion (11).
2. the electrode deriving structure of a kind of lithium battery according to claim 1 is characterized in that, described connecting portion (11) is bar shaped and described connecting portion (11) is provided with perpendicular to electrode column (1).
3. the electrode deriving structure of a kind of lithium battery according to claim 2 is characterized in that, the inner of said electrode column (1) is positioned at the middle part of said connecting portion (11), and described electrode column (1) is an integral structure with connecting portion (11).
4. according to the electrode deriving structure of claim 1 or 2 or 3 described a kind of lithium batteries; It is characterized in that; Also have the limiting section (12) of restriction electrode column (1) on the described electrode column (1) with respect to the circumferential rotation of lithium battery housing, described limiting section (12) be square and with above-mentioned electrode column (1) be integral structure.
5. according to the electrode deriving structure of claim 1 or 2 or 3 described a kind of lithium batteries, it is characterized in that described electrode column (1) adopts aluminium or copper to become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201739619U CN202513227U (en) | 2012-04-09 | 2012-04-09 | Electrode leading-out structure for lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201739619U CN202513227U (en) | 2012-04-09 | 2012-04-09 | Electrode leading-out structure for lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513227U true CN202513227U (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201739619U Expired - Fee Related CN202513227U (en) | 2012-04-09 | 2012-04-09 | Electrode leading-out structure for lithium battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN202513227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332579A (en) * | 2014-09-04 | 2015-02-04 | 中天储能科技有限公司 | Lithium ion battery negative pole leading structure and resistance butt welding method |
| CN106684305A (en) * | 2016-12-23 | 2017-05-17 | 惠州市亿能电子有限公司 | Electrode component and battery module with replaceable electrode component |
-
2012
- 2012-04-09 CN CN2012201739619U patent/CN202513227U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332579A (en) * | 2014-09-04 | 2015-02-04 | 中天储能科技有限公司 | Lithium ion battery negative pole leading structure and resistance butt welding method |
| CN104332579B (en) * | 2014-09-04 | 2016-06-29 | 中天储能科技有限公司 | A kind of lithium-ion battery cathode-post deriving structure and resistance butt-joint method |
| CN106684305A (en) * | 2016-12-23 | 2017-05-17 | 惠州市亿能电子有限公司 | Electrode component and battery module with replaceable electrode component |
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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: 20121031 Termination date: 20150409 |
|
| EXPY | Termination of patent right or utility model |