CN202513214U - Insulating structure for square lithium battery - Google Patents
Insulating structure for square lithium battery Download PDFInfo
- Publication number
- CN202513214U CN202513214U CN2012201739568U CN201220173956U CN202513214U CN 202513214 U CN202513214 U CN 202513214U CN 2012201739568 U CN2012201739568 U CN 2012201739568U CN 201220173956 U CN201220173956 U CN 201220173956U CN 202513214 U CN202513214 U CN 202513214U
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- insulating part
- insulation system
- electrode column
- cap
- 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
Abstract
The utility model provides an insulating structure for a square lithium battery, belongs to the technical field of lithium batteries, and solves the problem that a short circuit is caused by the contact of an electrode post and a shell cover in the conventional lithium battery. The insulating structure of the square lithium battery is arranged in the shell, close to the shell cover, of the lithium battery, and comprises an insulating piece which is used for supporting the electrode post and is used for isolating the electrode post from the shell cover; the insulating piece is closely matched with the inner wall of the shell; a through hole is formed in the insulating piece; and the electrode post is arranged in the through hole in a penetrating way. The insulating structure for the square lithium battery has the advantages of simple structure, reasonable design, good insulating effect and the like.
Description
Technical field
The utility model belongs to technical field of lithium batteries, relates to a kind of insulation system of quadrate 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.Perhaps the electrode lug is screwed on the metal electric pole, and electrode column is screwed on cap and draws.This structure in use because electrode slice is connected with cap, when the electrode slice of lithium battery is put, also has electric current on the cap, very easily cause the short circuit of lithium battery, causes lithium battery to be scrapped.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of effectively with the insulation system of electrode slice with the quadrate lithium battery of cap isolation.
The purpose of the utility model can realize through following technical proposal:
A kind of insulation system of quadrate lithium battery; Be arranged in the housing of lithium battery near the cap place; It is characterized in that described insulation system comprises and is used for insulating part that electrode column is played a supportive role and is used for electrode column and cap are isolated, the inwall tight fit of described insulating part and housing; Have through hole on the described insulating part, above-mentioned electrode column is worn and is penetrated in this through hole.Through insulating part is set, prevent that effectively electrode column from contacting with cap, avoids the generation of lithium battery short circuit.
In the insulation system of above-mentioned quadrate lithium battery, the shape of said insulating part and the shape of inner walls adapt, and shown in insulating part utilize the effect of self elastic force to be fixed on the inwall of lithium battery housing.
In the insulation system of above-mentioned quadrate lithium battery, the shape of said insulating part is tabular, and the edge of said tabular insulating part has the shirt rim that extends internally along the electrode column direction, and described shirt rim abuts on the inwall of above-mentioned housing.
In the insulation system of above-mentioned quadrate lithium battery, described insulating part is resisted against on the medial surface of cap away from a side of shirt rim.
In the insulation system of above-mentioned quadrate lithium battery; Described insulation system also comprises the insulation spacer that is sheathed on the electrode column; And described insulation spacer is two; A described insulation spacer is resisted against on the lateral surface of cap, and its another insulation spacer is resisted against insulating part to have on the side of shirt rim.
In the insulation system of above-mentioned quadrate lithium battery, described insulating part is processed by plastic material.
In the insulation system of above-mentioned quadrate lithium battery, described insulation spacer is processed by plastic material.
The insulation system of this square lithium battery when mounted; Owing to have screw thread on the electrode column, at first an insulation spacer cover is set on the electrode column, be set to the insulating part cover on the electrode column then and insulating part is put in the housing of lithium battery; The cap cover is set on the electrode column; At last second insulation spacer cover is set on the electrode column, fastening nut makes above-mentioned some structure tight fits.This insulation system is effectively isolated electrode column and cap and housing, avoids the generation of short circuit during use.
Compared with prior art, the insulation system of this square lithium battery has the following advantages: it is simple in structure, reasonable in design, through insulating part is set, prevents that effectively electrode column from contacting with cap, avoids the generation of lithium battery short circuit; And this insulation system also comprises the insulation spacer that is sheathed on the electrode column, makes that its structural strength is high, insulating properties is better.
Description of drawings
Fig. 1 is the structural representation of the insulation system of quadrate lithium battery.
Among the figure, 1, insulating part; 11, through hole; 12, shirt rim; 3, insulation spacer.
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.
The shell of quadrate lithium battery comprises the housing that is square and is located at place, housing both ends respectively to the cap that this housing seals, on cap, has the liquid injection hole with housing 1 internal communication.As shown in Figure 1; The insulation system of this square lithium battery; Be arranged in the housing of lithium battery near the cap place, insulation system comprises and is used for insulating part 1 that electrode column is played a supportive role and is used for electrode column and cap are isolated, the inwall tight fit of insulating part 1 and housing; Have through hole 11 on the insulating part 1, electrode column is worn and is penetrated in this through hole 11.Through insulating part 1 is set, prevent that effectively electrode column from contacting with cap, avoids the generation of lithium battery short circuit.
As shown in Figure 1, the shape of this insulating part 1 and the shape of inner walls adapt, and insulating part 1 utilizes the effect of self elastic force to be fixed on the inwall of lithium battery housing; Concrete; As shown in Figure 1, the shape of this insulating part 1 is tabular, and the edge of tabular insulating part 1 has along the shirt rim 12 that the electrode column direction extends internally; Shirt rim 12 abuts on the inwall of housing, and insulating part 1 is resisted against on the medial surface of cap away from a side of shirt rim 12.
As shown in Figure 1; For the reinforced insulation performance, this insulation system also comprises the insulation spacer 3 that is sheathed on the electrode column, and insulation spacer 3 is two; An insulation spacer 3 is resisted against on the lateral surface of cap, and its another insulation spacer 3 is resisted against insulating part 1 to have on the side of shirt rim 12.Insulating part 1 in the present embodiment is processed by plastic material; Insulation spacer 3 is processed by plastic material.
The insulation system of this square lithium battery when mounted; Owing to have screw thread on the electrode column, at first an insulation spacer 3 covers are set on the electrode column, be set to insulating part 1 cover on the electrode column then and insulating part 1 is put in the housing of lithium battery; The cap cover is set on the electrode column; At last second insulation spacer, 3 covers are set on the electrode column, fastening nut makes above-mentioned some structure tight fits.This insulation system is effectively isolated electrode column and cap and housing, avoids the generation of short circuit during use.
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 insulating part 1, through hole 11, shirt rim 12, insulation spacer 3 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 (7)
1. the insulation system of a quadrate lithium battery; Be arranged in the housing of lithium battery near the cap place; It is characterized in that described insulation system comprises and be used for insulating part (1) that electrode column is played a supportive role and is used for electrode column and cap are isolated, the inwall tight fit of described insulating part (1) and housing; Have through hole (11) on the described insulating part (1), above-mentioned electrode column is worn and is penetrated in this through hole (11).
2. the insulation system of a kind of quadrate lithium battery according to claim 1 is characterized in that, the shape of said insulating part (1) and the shape of inner walls adapt, and shown in insulating part (1) utilize the effect of self elastic force to be fixed on the inwall of lithium battery housing.
3. the insulation system of a kind of quadrate lithium battery according to claim 2; It is characterized in that; The shape of said insulating part (1) is tabular, and the edge of said tabular insulating part (1) has along the shirt rim (12) that the electrode column direction extends internally, and described shirt rim (12) abut on the inwall of above-mentioned housing.
4. the insulation system of a kind of quadrate lithium battery according to claim 3 is characterized in that, described insulating part (1) is resisted against on the medial surface of cap away from a side of shirt rim (12).
5. according to the insulation system of claim 3 or 4 described a kind of quadrate lithium batteries; It is characterized in that; Described insulation system also comprises the insulation spacer (3) that is sheathed on the electrode column; And described insulation spacer (3) is two, and a described insulation spacer (3) is resisted against on the lateral surface of cap, and its another insulation spacer (3) is resisted against insulating part (1) to have on the side of shirt rim (12).
6. according to the insulation system of claim 1 or 2 or 3 or 4 described a kind of quadrate lithium batteries, it is characterized in that described insulating part (1) is processed by plastic material.
7. the insulation system of a kind of quadrate lithium battery according to claim 5 is characterized in that, described insulation spacer (3) is processed by plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201739568U CN202513214U (en) | 2012-04-09 | 2012-04-09 | Insulating structure for square lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201739568U CN202513214U (en) | 2012-04-09 | 2012-04-09 | Insulating structure for square lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513214U true CN202513214U (en) | 2012-10-31 |
Family
ID=47065672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201739568U Expired - Fee Related CN202513214U (en) | 2012-04-09 | 2012-04-09 | Insulating structure for square lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202513214U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299167A (en) * | 2016-09-29 | 2017-01-04 | 中航锂电（洛阳）有限公司 | Li battery shell and use lithium battery and the lithium battery manufacture method of this shell |
-
2012
- 2012-04-09 CN CN2012201739568U patent/CN202513214U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299167A (en) * | 2016-09-29 | 2017-01-04 | 中航锂电（洛阳）有限公司 | Li battery shell and use lithium battery and the lithium battery manufacture method of this shell |
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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 |