CN206040722U - Battery negative pole connection structure and coiling formula cylinder battery - Google Patents
Battery negative pole connection structure and coiling formula cylinder battery Download PDFInfo
- Publication number
- CN206040722U CN206040722U CN201621093763.6U CN201621093763U CN206040722U CN 206040722 U CN206040722 U CN 206040722U CN 201621093763 U CN201621093763 U CN 201621093763U CN 206040722 U CN206040722 U CN 206040722U
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- Prior art keywords
- box hat
- battery
- film layer
- insulating film
- negative pole
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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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- 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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a battery negative pole connection structure and coiling formula cylinder battery, including the box hat of the built -in article that curl and the negative pole utmost point ear of being connected with the negative pole piece of the article that curl, the coating of box hat bottom has an annular insulating rete, should insulating rete with the box hat bottom with to curl article isolated, the middle zone who is somebody's turn to do the insulation rete is spotwelding area, bears the welding of negative pole utmost point ear be in the spotwelding area of box hat bottom. Its advantage is: the insulating film is scribbled to the box hat bottom, has saved the use of negative pole end insulating piece, has saved the material, has also saved the space simultaneously, can hold more active material, has improved the capacity of battery, and simplified production processes, saved manufacturing cost, avoided since the negative pole insulating piece leak put, the production of landing, the battery defective products that leads to of bending, improved the yield of battery.
Description
Technical field
The utility model is related to a kind of field of lithium, more particularly to coiled cylindrical battery and negative pole attachment structure.
Background technology
Coiled battery includes box hat, and coiling body, electrolyte and seal body, coiling body include positive plate, barrier film and negative pole
Piece, coiling body wind after being laminated by three and are formed, and positive plate is connected with the positive terminal of seal body by positive pole ear, negative plate
It is connected with box hat bottom by negative lug, negative lug is welded on the bottom of box hat.
After coiling body loads box hat, in order to prevent the positive plate on coiling body from contacting with box hat bottom, negative terminal and volume
Contact around body, place insulating trip between coiling body and negative terminal and electrically insulated.The addition generation of insulating trip is following not
Good impact：1st, place insulating trip, need an extra procedure, meanwhile, when insulating trip is put, due to insulating trip it is softer,
It is possible that leakage is put, slide or the situation of insulating trip bending occurs, this can increase the fraction defective of battery.2nd, insulating trip itself tool
There is certain height (0.3-0.5 millimeters), in the case of box hat constant height, the height loss of coiling body has fallen a part,
There is certain impact on the capacitance of battery.
Utility model content
Technical problem to be solved in the utility model is to provide one kind and coats insulated paint to omit insulation in box hat bottom
The GND attachment structure of piece.The utility model further provides tool structured coiled cylindrical battery.
Solve the technical scheme that technical problem of the present utility model needs to provide：GND attachment structure, including built-in
The box hat of curling product and the negative lug being connected with the negative plate of curling product, described box hat bottom is coated with the dielectric film of ring-type
Box hat bottom is isolated by layer, the insulating film layer with curling condition, and the zone line of the insulating film layer is Welding Area, described negative pole
Welding Area of the tab welding in described box hat bottom.
Further preferred scheme of the present utility model：The material of described dielectric film is pitch, polytetrafluoroethylene (PTFE), natural tree
Fat or synthetic resin are made.Described dielectric film can be curable or not curable insulating materials, and described dielectric film is removed
Box hat bottom is annularly uniformly adhered in the middle of box hat outside Welding Area, good and stable insulating effect is played.
Further preferred scheme of the present utility model：The thickness of described insulating film layer is 0.05～0.15mm.This thickness
Interior insulating film layer can play insulating effect, again will not (less than 0.05mm) too thin because of insulating film layer there is defective insulation,
Also will not (more than 0.15mm) too thick because of insulating film layer cause insulating materials waste and take box hat in more spaces and reduce
The capacity of battery, so that reach the reasonable combination of insulating materials consumption, production technology and properties of product.Described insulating film layer will
Box hat bottom is isolated with curling condition, prevents negative plate with positive plate short circuit.
Further preferred scheme of the present utility model：Described curling product are by positive plate, diaphragm paper and described negative plate
Three is co-wound to be formed.Described diaphragm paper is located between positive plate and negative plate, and described diaphragm paper is insulating materials, is risen
To the effect of isolation positive plate and negative plate, the short circuit of positive plate and negative plate is prevented.Described negative lug is born from described
Draw on pole piece, described positive pole ear is drawn from described positive plate.
Further preferred scheme of the present utility model：Described negative lug is made up of nickel sheet.Described negative lug is used
Described negative lug adhesive tape wraps up and reserves the Welding Area of termination sub-fraction nickel sheet and box hat bottom and mutually welds, box hat just into
For the negative pole of battery, described negative lug adhesive tape is insulating tape, described negative lug adhesive tape play negative lug with
The effect that the positive plate of described curling product is isolated.
Coiled cylindrical battery, including box hat, curling product and electrolyte, curling product are built in described box hat, volume
The negative plate of Qu Pin is connected with negative lug, and described box hat bottom is coated with the insulating film layer of ring-type, and the insulating film layer is by steel
Shell bottom is isolated with curling condition, and the zone line of the insulating film layer is Welding Area, and described negative lug is welded on described
The Welding Area of box hat bottom.
Further preferred scheme of the present utility model：The material of described dielectric film is pitch, polytetrafluoroethylene (PTFE), natural tree
Fat or synthetic resin are made.Described dielectric film can be curable or not curable insulating materials, and described dielectric film is removed
Box hat bottom is annularly uniformly adhered in the middle of box hat outside Welding Area, good and stable insulating effect is played.
Further preferred scheme of the present utility model：The thickness of described insulating film layer is 0.05～0.15mm.This thickness
Interior insulating film layer can play insulating effect, again will not (less than 0.05mm) too thin because of insulating film layer there is defective insulation,
Also will not (more than 0.15mm) too thick because of insulating film layer cause insulating materials waste and take box hat in more spaces and reduce
The capacity of battery, so that reach the reasonable combination of insulating materials consumption, production technology and properties of product.Described insulating film layer will
Box hat bottom is isolated with curling condition, prevents negative plate with positive plate short circuit.
Further preferred scheme of the present utility model：Described curling product are by positive plate, diaphragm paper and described negative plate
Three is co-wound to be formed.Described diaphragm paper is located between positive plate and negative plate, and described diaphragm paper is insulating materials, is risen
To the effect of isolation positive plate and negative plate, the short circuit of positive plate and negative plate is prevented.Described negative lug is born from described
Draw on pole piece, described positive pole ear is drawn from described positive plate.
Further preferred scheme of the present utility model：Described negative lug is made up of nickel sheet.Described negative lug is used
Described negative lug adhesive tape wraps up and reserves the Welding Area of termination sub-fraction nickel sheet and box hat bottom and mutually welds, box hat just into
For the negative pole of battery, described negative lug adhesive tape is insulating tape, described negative lug adhesive tape play negative lug with
The effect that the positive plate of described curling product is isolated.
Compared with prior art, the utility model has the advantages that：Box hat bottom coated insulating film, eliminates negative pole end insulating trip
Use, save material, while also saving space, more active materials can be accommodated, improve the capacity of battery；And
And production process is simplified, save production cost, it is to avoid put, slide due to the leakage of negative insulation piece, battery caused by bending
The generation of defective products, improves the yield rate of battery.
Description of the drawings
Fig. 1 is box hat schematic diagram of the present utility model；
Fig. 2 is box hat bottom plan view of the present utility model；
Fig. 3 is curling product stereogram of the present utility model；
Fig. 4 is curling product top view of the present utility model；
Fig. 5 is cylindrical cell sectional view of the present utility model；
Fig. 6 is the enlarged drawing at A in Fig. 4.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figs 1 to 6, GND attachment structure, box hat 1 including built-in curling product 3 and negative with curling product 3
The negative lug 31 of the connection of pole piece 35,1 bottom of box hat is coated with the insulating film layer 2 of ring-type, and the insulating film layer 2 is by 1 bottom of box hat
It is isolated with curling product 3, the zone line of the insulating film layer 2 is Welding Area 11, and negative lug 31 is by the Welding Area 11 and steel
1 bottom welding of shell.Negative lug 31 is welded on the Welding Area 11 of 1 bottom of box hat.
As Figure 1-Figure 2, the material of dielectric film 2 is made up of pitch, polytetrafluoroethylene (PTFE), natural resin or synthetic resin.
Dielectric film 2 can be curable or not curable insulating materials, dielectric film 2 in addition to 1 middle Welding Area 11 of box hat it is annular in shape
Even is attached to 1 bottom of box hat, plays good and stable insulating effect.
As shown in Figure 1, Figure 2 with shown in Fig. 5, the thickness of insulating film layer 2 is 0.05～0.15mm.Insulating film layer 2 in this thickness
Insulating effect can be played, defective insulation will not occur because of insulating film layer 2 too thin (less than 0.05mm) again, also will not be because of exhausted
Velum layer 2 too thick (more than 0.15mm) causes insulating materials to waste and take more spaces in box hat 1 and reduce the capacity of battery,
So as to reach the reasonable combination of insulating materials consumption, production technology and properties of product.Insulating film layer 2 is by 1 bottom of box hat and curling
Product 3 are isolated, and prevent negative plate 35 short-circuit with positive plate 33.
As shown in figures 3 to 6, curling product 3 are by positive plate 33, diaphragm paper 34 and 35 three of negative plate is co-wound forms.
Diaphragm paper 34 is located between positive plate 33 and negative plate 35, and diaphragm paper 34 is insulating materials, plays isolation positive plate 33 and negative pole
The effect of piece 35, prevents the short circuit of positive plate 33 and negative plate 35.Negative lug 31 is drawn from negative plate 35, positive pole ear 32
Draw from positive plate 33.Middle inside the insertion box hat 1 of electrode bar 4, for being welded on box hat bottom by negative lug.
As shown in Figure 3, Figure 5 and Figure 6, negative lug 31 is made up of nickel sheet.Negative lug 31 is wrapped with negative lug adhesive tape 311
The Welding Area 11 that termination sub-fraction nickel sheet is wrapped up in and is reserved with 1 bottom of box hat is mutually welded, and box hat 1 just becomes the negative pole of battery,
Negative lug adhesive tape 311 is insulating tape, and negative lug adhesive tape 311 plays 33 phase of positive plate of negative lug 31 and curling product 3
The effect of isolation.
Coiled cylindrical battery, including box hat 1, curling product 3 and electrolyte 5, curling product 3 are built in box hat 1, are crimped
The negative plate 35 of product 3 is connected with negative lug 31, and 1 bottom of box hat is coated with the insulating film layer 2 of ring-type, and the insulating film layer 2 is by steel
1 bottom of shell is isolated with curling product 3, and the zone line of the insulating film layer 2 is Welding Area 11, and negative lug 31 is welded on box hat bottom
The Welding Area 11 in portion.
As Figure 1-Figure 2, the material of dielectric film 2 is made up of pitch, polytetrafluoroethylene (PTFE), natural resin or synthetic resin.
Dielectric film 2 can be curable or not curable insulating materials, dielectric film 2 in addition to 1 middle Welding Area 11 of box hat it is annular in shape
Even is attached to 1 bottom of box hat, plays good and stable insulating effect.
As shown in Figure 1, Figure 2 with shown in Fig. 5, the thickness of insulating film layer 2 is 0.05～0.15mm.Insulating film layer 2 in this thickness
Insulating effect can be played, defective insulation will not occur because of insulating film layer 2 too thin (less than 0.05mm) again, also will not be because of exhausted
Velum layer 2 too thick (more than 0.15mm) causes insulating materials to waste and take more spaces in box hat 1 and reduce the capacity of battery,
So as to reach the reasonable combination of insulating materials consumption, production technology and properties of product.Insulating film layer 2 is by 1 bottom of box hat and curling
Product 3 are isolated, and prevent negative plate 35 short-circuit with positive plate 33.
As shown in figures 3 to 6, curling product 3 are by positive plate 33, diaphragm paper 34 and 35 three of negative plate is co-wound forms.
Diaphragm paper 34 is located between positive plate 33 and negative plate 35, and diaphragm paper 34 is insulating materials, plays isolation positive plate 33 and negative pole
The effect of piece 35, prevents the short circuit of positive plate 33 and negative plate 35.Negative lug 31 is drawn from negative plate 35, positive pole ear 32
Draw from positive plate 33.
As shown in Figure 3, Figure 5 and Figure 6, negative lug 31 is made up of nickel sheet.Negative lug 31 is wrapped with negative lug adhesive tape 311
The Welding Area 11 that termination sub-fraction nickel sheet is wrapped up in and is reserved with 1 bottom of box hat is mutually welded, and box hat 1 just becomes the negative pole of battery,
Negative lug adhesive tape 311 is insulating tape, and negative lug adhesive tape 311 plays 33 phase of positive plate of negative lug 31 and curling product 3
The effect of isolation.
Above GND attachment structure provided by the utility model and coiled cylindrical battery have been carried out in detail
Introduce, specific case used herein is set forth to principle of the present utility model and embodiment, above example
Illustrate that being only intended to help understands the utility model and core concept.It should be pointed out that for the ordinary skill people of the art
For member, on the premise of without departing from the utility model principle, some improvement and modification can also be carried out to the utility model, this
A little improvement and modification are also fallen in the utility model scope of the claims.
Claims (10)
1. GND attachment structure, the box hat including built-in curling product and the negative lug being connected with the negative plate of curling product,
It is characterized in that described box hat bottom is coated with the insulating film layer of ring-type, the insulating film layer by box hat bottom and curling condition every
It is Welding Area from the zone line of, the insulating film layer, described negative lug is welded on the Welding Area of described box hat bottom.
2. GND attachment structure according to claim 1, it is characterised in that the material of described dielectric film be pitch,
Polytetrafluoroethylene (PTFE), natural resin or synthetic resin are made.
3. GND attachment structure according to claim 1, it is characterised in that the thickness of described insulating film layer is
0.05～0.15mm.
4. GND attachment structure according to claim 1, it is characterised in that described curling product are by positive plate, barrier film
Paper and described negative plate three is co-wound forms.
5. GND attachment structure according to claim 1, it is characterised in that described negative lug is made up of nickel sheet.
6. coiled cylindrical battery, including box hat, crimps product and electrolyte, and curling product are built in described box hat, curling
The negative plate of product is connected with negative lug, it is characterised in that described box hat bottom is coated with the insulating film layer of ring-type, the insulation
Box hat bottom is isolated by film layer with curling condition, and the zone line of the insulating film layer is Welding Area, described negative lug welding
In the Welding Area of described box hat bottom.
7. coiled cylindrical battery according to claim 1, it is characterised in that the material of described dielectric film be pitch,
Polytetrafluoroethylene (PTFE), natural resin or synthetic resin are made.
8. coiled cylindrical battery according to claim 1, it is characterised in that the thickness of described insulating film layer is
0.05～0.15mm.
9. coiled cylindrical battery according to claim 1, it is characterised in that described curling product are by positive plate, barrier film
Paper and described negative plate three is co-wound forms.
10. coiled cylindrical battery according to claim 1, it is characterised in that described negative lug is by nickel sheet system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093763.6U CN206040722U (en) | 2016-09-30 | 2016-09-30 | Battery negative pole connection structure and coiling formula cylinder battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621093763.6U CN206040722U (en) | 2016-09-30 | 2016-09-30 | Battery negative pole connection structure and coiling formula cylinder battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206040722U true CN206040722U (en) | 2017-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621093763.6U Active CN206040722U (en) | 2016-09-30 | 2016-09-30 | Battery negative pole connection structure and coiling formula cylinder battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206040722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229428A (en) * | 2016-09-30 | 2016-12-14 | 宁波超霸能源有限公司 | Battery cathode attachment structure and coiled cylindrical battery |
-
2016
- 2016-09-30 CN CN201621093763.6U patent/CN206040722U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229428A (en) * | 2016-09-30 | 2016-12-14 | 宁波超霸能源有限公司 | Battery cathode attachment structure and coiled cylindrical battery |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |