CN202616336U

CN202616336U - Positive pole tab tape for lithium-ion battery

Info

Publication number: CN202616336U
Application number: CN2012201716551U
Authority: CN
Inventors: 凌万秾; 张福年; 谯建琼
Original assignee: Jiangmen City Tuo Lian Electronic Science And Technology Co Ltd
Current assignee: Jiangmen City Tuo Lian Electronic Science And Technology Co Ltd
Priority date: 2012-04-20
Filing date: 2012-04-20
Publication date: 2012-12-19
Anticipated expiration: 2022-04-20

Abstract

The utility model discloses a positive pole tab tape for a lithium-ion battery. The positive pole tab tape comprises a tape body made from aluminum; and non-aluminum metal layers and pole tab soft adhesives corresponding to the non-aluminum metal layers are arranged on the tape body at intervals, wherein the non-aluminum metal layers are easily tinned. According to the positive pole tab tape for the lithium-ion battery, the non-aluminum metal layers which are easily tinned and the pole soft adhesives are arranged on a positive pole tab of the lithium-ion battery at intervals, so that the positive pole tab can be applied to a fully-automatic winding machine, the fully-automatic production that the positive pole tab with the non-aluminum metal layers is welded to a pole piece of the battery is realized, the self nickel transferring by lithium-ion battery manufacturers is avoided, and the production efficiency of finished batteries of the lithium-ion battery manufacturers is greatly increased; and meanwhile, the ratio of fracture of positive pole tab piece bodies during self transferring and the occurrence of scald to a circuit board or cells caused by long welding time and high temperature during the processes of tinning and welding of the lithium-ion battery manufacturers are reduced, and then, the production yield of the lithium-ion battery manufacturers is increased.

Description

The winding of a kind of lithium ion cell positive ear

Technical field

The utility model relates to the winding of a kind of lithium ion cell positive ear, belongs to lithium ion battery design and manufacturing technology field.

Background technology

When using the aluminum plastic film material as the lithium ion battery of packing; All to use with the lug flexible glue be seal and the lug of insulating material as the conductive current collector of electric core, the production efficiency that the welding performance of this kind lug current-carrying part metal material directly has influence on the finished product lithium ion battery with produce excellent rate.When producing or use lithium ion battery; All need the electric core of lithium ion battery is welded with protective circuit plate or electric wire; The lug that is about to lithium ion battery is welded on protective circuit plate or the electric wire; The anode ear of lithium ion battery generally all adopts aluminum material to process at present, because aluminum material is poor with metallic tin affinity, is not easy on the anode ear of aluminum, directly to carry out soldering; So lithium ion battery in use need one section nickel strap of welding or aluminium nickel composite band (promptly changeing nickel) on the anode ear bared end make its with protective circuit plate or electric wire between easy soldering; But change nickel troublesome poeration, process complicacy, change the nickel inefficiency, influenced the production efficiency of anode ear commentaries on classics nickel speed and lithium ion battery producer greatly; In addition, the anode ear behind the commentaries on classics nickel is sealing-off and frangible very easily, thus the rate of finished products that influence is produced and the normal useful life of product.

The utility model content

In order to overcome the deficiency of prior art, the utility model provides a kind of production efficiency and the excellent rate of production that improves the finished product lithium ion battery, accelerates the lithium ion cell positive ear winding that anode ear changes nickel speed.

The utility model solves the technical scheme that its technical problem adopted:

The winding of a kind of lithium ion cell positive ear, it comprises with the winding body of aluminium as material, be spaced on its said winding body the non-aluminum metal layer that is easy to tin and with the corresponding lug flexible glue of non-aluminum metal layer.

As the improvement of technique scheme, the winding body at said non-aluminum metal layer two ends is through one-body molded connection.

As the further improvement of technique scheme, the winding body at said non-aluminum metal layer two ends couples together through non-aluminum metal layer.

Preferably, an end of said non-aluminum metal layer is arranged in the lug flexible glue.

Further, said non-aluminum metal layer is positioned at the front and/or the reverse side of winding body.

The beneficial effect of the utility model is: the utility model is through at non-aluminum metal layer that tin on spaced being easy to is set on the lithium ion cell positive ear and lug flexible glue; It can be applicable on the automatic winding-machine; The anode ear that realization has a non-aluminum metal layer is welded on the fully-automatic production on the pole piece of battery; Avoid lithium ion battery manufacturer to change nickel voluntarily, improved the production efficiency of lithium ion battery manufacturer finished product battery greatly; Also reduced simultaneously the fracture ratio of lithium ion battery manufacturer anode ear lamellar body in switching process voluntarily and in last soldering termination process, occur weld time long, temperature is high and to the generation of wiring board or electric core scald phenomenon, improved the excellent rate of production of lithium ion battery manufacturer.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is another structural representation of the utility model;

Fig. 3 is the structural representation of the winding body at non-aluminum metal layer two ends in the utility model when being connected by non-aluminum metal layer.

Embodiment

With reference to Fig. 1 ~ Fig. 3; A kind of lithium ion cell positive ear winding of the utility model; It comprises with the winding body 1 of aluminium as material; Be spaced on the said winding body 1 the non-aluminum metal layer 2 that is easy to tin and with non-aluminum metal layer 2 corresponding lug flexible glues 3, the winding body 1 at said non-aluminum metal layer 2 two ends can be through one-body molded connection, promptly winding body 1 is continuously unremitting; The winding body 1 at non-aluminum metal layer 2 two ends also can couple together through non-aluminum metal layer 2, and promptly winding body 1 itself breaks off, and gap couples together through non-aluminum metal layer 2.The non-aluminum metal layer 2 that is easy to tin can be nickel metal layer, copper metal layer or aluminium nickel composite metal layer or the like; When the winding body 1 at said non-aluminum metal layer 2 two ends passes through one-body molded connection; Non-aluminum metal layer 2 can adopt welding manners such as resistance welded, laser welding or high-frequency welding that non-aluminum metal layer 2 is transferred on winding body 1, also can it be plated on the winding body 1 through the mode of plating or chemical plating; When the winding body 1 at non-aluminum metal layer 2 two ends couples together through non-aluminum metal layer 2; Can non-aluminum metal layer 2 be transferred on the winding body 1 at non-aluminum metal layer 2 two ends through welding manner, non-aluminum metal layer 2 couples together the winding body 1 at non-aluminum metal layer 2 two ends and constitutes the winding of lithium ion cell positive ear.Non-aluminum metal layer 2 can be arranged on front, the reverse side of winding body 1; Perhaps positive and negative all is provided with non-aluminum metal layer 2.Spacing distance between the two whenever adjacent non-aluminum metal layers 2 can be decided according to the battery sizes of using anode ear.

Preferably, an end of said non-aluminum metal layer 2 is arranged in lug flexible glue 3, and in order to increase the mechanical strength of anode ear, to avoid battery in welding or moving process, anode ear is fractureed, and preferably the end with non-aluminum metal layer 2 is inserted in the lug flexible glue 3.Double-level-metal can strengthen the mechanical strength of anode ear.

The above; It is the preferred embodiments of the utility model; But the utility model is not limited to the foregoing description, as long as it reaches the technique effect of the utility model with any same or analogous means, all should fall within the protection range of the utility model.

Claims

1. lithium ion cell positive ear winding; Comprise with the winding body (1) of aluminium, it is characterized in that as material: be spaced on the said winding body (1) the non-aluminum metal layer (2) that is easy to tin and with the corresponding lug flexible glue of non-aluminum metal layer (2) (3).

2. a kind of lithium ion cell positive ear according to claim 1 winding is characterized in that: the winding body (1) at said non-aluminum metal layer (2) two ends is through one-body molded connection.

3. a kind of lithium ion cell positive ear according to claim 1 winding is characterized in that: the winding body (1) at said non-aluminum metal layer (2) two ends couples together through non-aluminum metal layer (2).

4. according to each described a kind of lithium ion cell positive ear winding in the claim 1 ~ 3, it is characterized in that: an end of said non-aluminum metal layer (2) is arranged in lug flexible glue (3).

5. a kind of lithium ion cell positive ear according to claim 4 winding is characterized in that: said non-aluminum metal layer (2) is positioned at the front and/or the reverse side of winding body (1).