CN2328101Y

CN2328101Y - Punched steel tape for electrode plates of batteries

Info

Publication number: CN2328101Y
Application number: CN 98241335
Authority: CN
Inventors: 周中斌
Original assignee: Tianyou Industry Dev Co ltd Sh
Current assignee: Shenzhen Nonfemet Hi-Power Battery Material Co., Ltd.
Priority date: 1998-10-14
Filing date: 1998-10-14
Publication date: 1999-07-07
Anticipated expiration: 2008-10-14

Abstract

The utility model relates to a punch steel belt for a battery pole plate. The steel belt is punched at one time, and is not made into grouping steel belts which are desired by batteries in different specifications by making use of the grouping distribution of the punching holes of the punch steel belt, the different distribution of hole shape and the design of a transition region. The utility model provides the using convenience for battery manufactories. The hole forming rate is raised under the precondition of not influencing the strength intensity by making use of the shaped hole structure of the punching holes. The hole forming rate of the punching holes using a positive hexagonal type raises 10 percents than the hole forming rate of the circular punching holes. The pressed film is firm, and the finished product degree is raised by making use of a single side regular burr hole structure or a double-side regular burr hole structure. The utility model has the advantages of reasonable design, and is suitable for various requirements for manufacturing the battery pole plate.

Description

Perforated steel band for battery pole plate

The utility model relates to a kind of electrode substrate for battery material.Specifically secondary cell or the used perforated steel ribbon of rechargeable battery substrate.

As battery pole plates, in the past nickel-clad steel plates that adopt more, the back is not high because of its percent opening, burr inevitably appears during perforation, and the active material addition is few, then develops one pole or bipolar expanded material, the corresponding battery pole plates that produces all size of function admirable.But, make a general survey of the evolution of battery industry, punched steel plate still has its irreplaceable advantage, and as the intensity height, cost is low, can discharge and recharge on a large scale to be subjected to user's welcome.Chinese patent 93209412.0 " Ni-H cell with perforation nickel strap squeeze membrane electrode " discloses a kind of Ni-H cell that is made of battery case, sealing ring, battery cover, positive pole ear, barrier film positive pole, negative pole, negative pole is a perforation nickel strap press mold structure, substrate adopts perforation nickel strap or perforation nickel plating band, discloses press mold method and steel band structure simultaneously.But its main purpose is to make battery and press mold material and technology, uses problems such as inconvenience and percent opening are lower when its structure and shape still can not solve nickel-clad steel plate existence manufacturing battery, still has improvements.。Often produce crooked broken belt when existing battery is made, the whole and welding in edge such as is difficult at phenomenon, and the perforated steel ribbon rate of finished products is reduced.Must prepare a lot of steel bands when producing multiple model, very inconvenient.

The utility model provides a kind of employing perforation that distributes in groups for avoiding the existing weak point that exists, and different perforation distributions with minimizing stress, prevent broken belt, convenient welding; Perforation is circle or irregularly-shaped hole, percent opening height; The rule burr makes the firm perforated steel band for battery pole plate of plated film.

The utility model can be realized with the following method, its perforated steel band for battery pole plate, be banded structure, be installed with perforation on the zone face, perforation on the zone face vertically distributes in groups, what is called vertically is steel band when perforation steel band traffic direction, be laterally perpendicular to direction longitudinally, and every group is banded transition region between boring a hole.Every group of perforation is circle or irregularly-shaped hole, vertically, cross-perforating is staggered, the pore diameter range of every group of perforation is 0.5～4.0 millimeter of φ, vertical and the longitudinal pitch of perforation is 1.0～5.0 millimeters, horizontal and horizontal spacing is 1.0～5.0 millimeters, used thickness of strips is 0.01～0.1 millimeter, and width is 10～350 millimeters, and the perforation mouth has burr and/or rule burr.

The utility model is that also the abnormity perforation also can be equilateral triangle or square or rhombus for regular hexagon.

The hole of perforated steel ribbon can have the rule burr, and the hole count of rule burr is more than 4% of total hole count, rule burr hole height＜0.5 millimeter.Perforated steel ribbon can two-sidedly have rule burr hole.

The horizontal and vertical spacing of boring a hole: when piercing aperture is 1.5 millimeters, vertically apart from being 1.73～1.77 millimeters; Laterally distance is 1.0～1.02 millimeters.When piercing aperture was 1.7 millimeters, vertically distance was 2.0 millimeters; Laterally distance is 1.15 millimeters.

It is 0.0001～0.008 millimeter nickel coating that perforation inwall and steel band face two sides have thickness, or does not have nickel coating.Used thickness of strips is 0.06 millimeter or 0.08 millimeter.Used width of steel band is 210 millimeters or 220 millimeters.

The utility model has following advantage compared to existing technology, because the perforation of perforated steel ribbon distributes in groups, has transition region, makes that side cut is straight, can effectively utilize steel band, conservation consumption, particularly straight side cut makes soldering polar ear easy, and stress equilibrium, easy fracture not when crooked, rate of finished products height.Can design the distribution in groups of multiple same widths to the steel band once perforated, to improve the manufacturing efficient of battery pole plates, also can design the distribution in groups of different in width, be used to make the different model battery, battery manufactory purchases a coil band can satisfy the needs of making multiple size battery, very easy to use.Perforation adopts irregularly-shaped hole that the percent opening of perforated steel ribbon is improved a lot, and has improved the performance of battery.Processing to the burr hole has changed traditional view, initiatively makes burr hole clocklike, becomes shortcoming into favourable, thereby makes the press mold of perforated steel band for battery pole plate firm, has improved rate of finished products.Steel band perforation inwall and steel band face both sides have nickel coating, to guarantee that perforated steel ribbon does not corrode in battery pole plates manufacture process and battery use, replace traditional perforation nickel strap thus, reduce the manufacturing cost of battery pole plates greatly.

The accompanying drawing drawing is described as follows: Fig. 1 is the distribution map in groups of the utility model perforated steel band for battery pole plate perforation;

Fig. 2 is horizontal and vertical hole shape distribution map when being circular port with the perforated steel ribbon;

Fig. 3 is the schematic diagram of various irregularly-shaped holes except that circular hole;

Fig. 4 is a shoulder shape spill lower bolster structure chart of making the rule burr;

Fig. 5 is the perforated steel ribbon schematic diagram with two-sided rule burr hole.

The visible Fig. 1 of embodiment of the present utility model, existing steel band 3 is bored a hole continuously when making battery, cut edge and will cut out circular hole inevitably, the edge irregularity, manufacturing is made troubles to battery, the vertical gang punching of the utility model, vertically having transition region 2, cut out use in transition region 2, it is straight to cut edge, increase the intensity at edge, for operations such as assemble soldering polar ear bring convenience.In order to enhance productivity or to adapt to different batteries required, can design distribute in groups 1 perforated steel ribbon 3 of the plurality of specifications with the combination of same widths or different in width, laterally, vertically perforation is staggered, by adjusting different arrangements on the punch press towards pin, or use and to have 1 the template of distributing in groups, just can form the vertically serial in groups of different size.Distribute explanation as Fig. 2 for adapting to the required perforated steel ribbon of the utility model 3 its hole shapes, its 1～1 ' be lateral separation; 2～2 ' be fore-and-aft distance.1.5 millimeters of φ can be used in the aperture of perforation, and the horizontal and horizontal spacing of perforation is 1.02 millimeters, and vertical and longitudinal pitch is 1.77 millimeters.1.7 millimeters of φ can be used in the aperture of perforation, and the horizontal and horizontal spacing of perforation is 1.15 millimeters, and vertical and longitudinal pitch is 2.0 millimeters.Used steel band 3 thickness are 0.08 millimeter, and width is 220 millimeters.Used steel band 3 thickness are 0.06 millimeter, and width is 210 millimeters.It is 0.004 millimeter nickel coating that perforation inwall and 3 two sides of steel band have thickness.Need to prove that if perforated steel ribbon 3 not nickel plating also can be manufactured battery pole plates, result of use, life-span and performance all will be affected certainly.

Shown in Fig. 3 be steel band 3 structures of improved various irregularly-shaped holes, replace the circular port of using always.As circular port, its mould is processed well, and is rolling easily, the virial equilibrium, rule burr hole is less relatively, but its percent opening is relatively low, and perforation spacings causes the waste of stress utilization, for this reason from not waiting, change hole shape into abnormity, can under the condition of pitch of holes maintenance and the same intensity of circular hole, increase percent opening, improve the battery serviceability, as utilize regular hexagon, pitch of holes is when beeline equates between the circular hole of circular hole with perforation, be staggered, can improve percent opening 10%.Irregularly-shaped hole can be with shapes such as regular hexagon or square, equilateral triangle, rhombuses.Certainly this method the template of perforated die, in the manufacturing of pin specification requirement than higher.

For the burr 4 that perforation the time brings, having constantly held is a shortcoming, but some battery manufactories think and guaranteeing especially two sides hairiness acanthopore 4 all of burr hole 4 under the certain rule condition recently, to filming, guarantees that press mold firmly is of great benefit to.Therefore, when selecting for use shoulder shape spill lower bolster 6 to make except that common punching, the utility model the normal burr hole 4 that forms, still has rule burr hole 5, and the height in control law burr hole 5, shoulder shape spill lower bolster 6 is as shown in Figure 4.The hole count with rule burr hole 5 except that having general burr hole 4 can be more than 8% of total hole count, and the height of rule burr 5 is controlled at below 0.5 millimeter.Rule burr hole 5 staggered mean allocation.In order to make two-sided press mold all firm, can all make the hole 5 of the band rule burr of some on steel band 3 two sides, promptly carry out can achieving the above object towards needle construction to twice punching with different, there are two-sided burr and rule burr hole 5 to be illustrated in Fig. 5.Certainly, still need polish processing to perforated steel ribbon product surface at last, to keep overall level and smooth of battery pole plates with rule burr hole 5.

Claims

1, a kind of perforated steel band for battery pole plate, be banded structure, has perforation on the zone face, it is characterized in that the vertically distribution (1) in groups of perforation on the zone face, between every group of perforation is banded transition region (2), every group of perforation is circle or irregularly-shaped hole, vertically, cross-perforating is staggered, the pore diameter range of every group of perforation is 0.5～4.0 millimeter of φ, vertical and the longitudinal pitch of perforation is 1.0～5.0 millimeters, and horizontal and horizontal spacing is 1.0～5.0 millimeters, and used steel band (3) thickness is 0.01～0.1 millimeter, width is 10～350 millimeters, and the perforation mouth has burr (4) and/or rule burr (5).

2, perforated steel band for battery pole plate according to claim 1 is characterized in that the abnormity perforation is regular hexagon or equilateral triangle or square or rhombus.

3, perforated steel band for battery pole plate according to claim 1 is characterized in that the hole of perforated steel ribbon (3) has rule burr (5), and the hole count in rule burr hole (5) is more than 4% of total hole count, and rule burr hole (5) highly＜0.5 millimeter.

4, as the perforated steel band for battery pole plate as described in claim 1 or 3, it is characterized in that perforated steel ribbon (3) has two-sided rule burr hole (5).

5, perforated steel band for battery pole plate according to claim 1 is characterized in that boring a hole vertically and horizontal spacing: when piercing aperture was 1.5 millimeters, vertically distance was 1.73～1.77 millimeters; Laterally distance is 1.0～1.02 millimeters.

6, perforated steel band for battery pole plate according to claim 1, it is characterized in that perforation laterally with spacing longitudinally: when piercing aperture is 1.7 millimeters, vertically apart from being 2.0 millimeters; Laterally distance is 1.15 millimeters.

7, it is 0.0001～0.008 millimeter nickel coating that perforated steel band for battery pole plate according to claim 1, it is characterized in that boring a hole inwall and steel band (3) face two sides have thickness, does not perhaps have nickel coating.

8, perforated steel band for battery pole plate according to claim 1 is characterized in that used steel band (3) thickness is 0.06 millimeter or 0.08 millimeter.

9, perforated steel band for battery pole plate according to claim 1 is characterized in that used steel band (3) width is 210 millimeters or 220 millimeters.