CN211789035U

CN211789035U - MWT battery piece with improve disconnected bars function of battery

Info

Publication number: CN211789035U
Application number: CN202020667640.9U
Authority: CN
Inventors: 章明; 职森森; 陈伟; 刘锐; 刘晓瑞; 吴仕梁; 路忠林; 张凤鸣
Original assignee: Jiangsu Sunport Power Corp Ltd
Current assignee: Jiangsu Sunport Power Corp Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-10-27
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a MWT battery piece with improve disconnected bars function of battery, including negative pole point, main grid line, thin grid line and prevent disconnected bars; taking the cathode point as the center of a circle and a circular area with the radius of 15mm as a hole plugging slurry residual area; dividing the hole plugging slurry residual area into four fan-shaped areas by using a main grid line taking a negative electrode point as a starting point; four anti-breaking grids are arranged around each electrode point; the vertical distance between each anti-breaking grid and the negative electrode point is larger than 15mm and smaller than 25mm, and each anti-breaking grid is communicated with the thin grid lines in the same fan-shaped area. The utility model discloses avoided the disconnected bars problem that the interference of stifled hole thick liquids arouses, promote and produce line A level rate.

Description

MWT battery piece with improve disconnected bars function of battery

Technical Field

The utility model relates to a MWT battery piece with improve disconnected bars function of battery through positive electrode MWT battery piece design, improves disconnected bars of MWT battery EL.

Background

In the prior art, an MWT battery is formed by punching a silicon wafer, slurry is filled into electrode points, and a negative electrode point is led to the back of the battery; in the electrode processing process of the MWT battery, a used panel is provided with vent holes corresponding to the hole plugging positions of the silicon wafers; during printing, the table is kept at vacuum, and the slurry is pressed into the holes by air pressure. Because the holes are communicated with the vent holes, the slurry can overflow from the holes on the front side of the battery and adhere to the table surface paper. When the battery piece is conveyed, the slurry remained on the table paper can form a tail on the front surface of the battery, and when the next battery piece is conveyed, the front surface of the battery piece is stained with partial slurry.

Disclosure of Invention

Utility model purpose: through statistics of a large amount of data, the size residual area is 15mm at the transverse longest and about 8mm at the longitudinal longest of the negative electrode point, and after the residual size is dried, the height of the grid line can be influenced when the front electrode is printed, so that EL grid breakage is caused.

To the problem that exists among the prior art and not enough, the utility model provides a MWT battery piece with improve disconnected bars function of battery. The method can avoid EL grid breakage caused by residue of hole plugging slurry, and make up for the defect that the EL grid breakage is obviously higher than that of the conventional battery due to the particularity of the MWT battery piece.

The technical scheme is as follows: an MWT battery piece with a function of improving battery grid breakage comprises a negative electrode point, a main grid line, a fine grid line and a breakage-proof grid; taking the cathode point as the center of a circle and a circular area with the radius of 15mm as a hole plugging slurry residual area; dividing the hole plugging slurry residual area into four fan-shaped areas by using a main grid line taking a negative electrode point as a starting point; four anti-breaking grids are arranged around each negative electrode point; the vertical distance between each anti-breaking grid and the negative electrode point is larger than 15mm and smaller than 25mm, and each anti-breaking grid is communicated with the thin grid lines in the same fan-shaped area.

Each anti-breaking grid is perpendicular to three adjacent thin grid lines respectively, is perpendicular to one thin grid line in the middle of the anti-breaking grids, and is connected with two thin grid lines on two sides respectively at two ends.

The width of the anti-breaking grid is the same as that of the thin grid line.

The width of the grid line of the anti-breaking grid is 0.03 mm.

According to the statistics of the position of the broken gate of the MWT battery EL, the broken gate is mainly concentrated at the position of the blocked hole and is parallel to the running direction of the silicon wafer, the proportion of the broken gate is greatly improved due to the interference of the blocked hole slurry at the position, a large amount of data is counted, and the transverse longest length of a slurry residual region at a negative electrode point is 15 mm. The vertical longest about 8mm is regional, for avoiding the influence that results in because of stifled hole thick liquids persist, increase the design of preventing disconnected bars outside this region, prevent that disconnected bars design position transverse distance negative pole point position should be greater than 15mm, the grid line width is unanimous with former thin grid line width, at 0.03mm, for reducing the consumption of thick liquids, prevent the design of disconnected bars perpendicular to thin grid, will link together around thin grid line, can avoid causing EL to turn dark because of the electric current does not switch on here, form the disconnected bars of EL, because main grid width broad, reach 0.185mm, be difficult to cause the disconnection, so main grid department need not to connect.

Has the advantages that: compared with the prior art, the utility model provides a MWT battery piece with improve disconnected bars function of battery has avoided the disconnected bars problem that the interference of stifled hole thick liquids arouses, promotes and produces line A level rate.

Drawings

Fig. 1 is a schematic diagram of a battery cell according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a portion a of fig. 1.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

As shown in fig. 1-2, the MWT battery piece with improved battery grid breaking function includes a negative electrode point 1, a main grid line 2, a thin grid line 3 and a breaking-proof grid 4; taking the cathode point 1 as the center of a circle and a circular area with the radius of 15mm as a hole plugging slurry residual area 5; the main grid line 2 taking the cathode point 1 as a starting point is in a cross shape, and the hole plugging slurry residual region 5 is divided into four right-angle sector regions; four anti-breaking grids 4 are arranged around each negative electrode point 1; the vertical distance between each anti-breaking grid 4 and the cathode point 1 is greater than 16mm, each anti-breaking grid 4 connects three adjacent thin grid lines 3 in the same right-angle sector area, the anti-breaking grid 4 is vertically crossed with one thin grid line 3 in the middle, and two ends of the anti-breaking grid are respectively connected with two thin grid lines 3 on two sides, as shown in fig. 2.

The width of the breakage-proof grid 4 is the same as that of the thin grid line 3, and the width of the grid line is 0.03 mm.

The utility model discloses mainly on the basis of original MWT battery piece positive electrode figure, increased and prevented disconnected bars 4 design, prevent disconnected bars 4 and remain regional 5 peripheral regions at stifled hole thick liquids, stifled hole thick liquids remain regional 5's stifled hole thick liquids residual easily causes this peripheral region, and the grid line does not switch on, under the electroluminescent device condition, causes to darken, forms disconnected bars, the utility model discloses switch on 2 thin grid lines 3 near, can make the electric current conduct on thin grid line 3 near to avoid under EL blacking, reduce the broken string.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a MWT battery piece with improve disconnected bars function of battery which characterized in that: the grid-connected structure comprises a negative electrode point, a main grid line, a thin grid line and an anti-breaking grid; taking the cathode point as the center of a circle and a circular area with the radius of 15mm as a hole plugging slurry residual area; dividing the hole plugging slurry residual area into four fan-shaped areas by using a main grid line taking a negative electrode point as a starting point; four anti-breaking grids are arranged around each negative electrode point; the vertical distance between each anti-breaking grid and the negative electrode point is larger than 15mm and smaller than 25mm, and each anti-breaking grid is communicated with the thin grid lines in the same fan-shaped area.

2. The MWT battery piece with the function of improving the grid breaking of the battery as claimed in claim 1, wherein: each anti-breaking grid is perpendicular to three adjacent thin grid lines respectively, is perpendicular to one thin grid line in the middle of the anti-breaking grids, and is connected with two thin grid lines on two sides respectively at two ends.

3. The MWT battery piece with the function of improving the grid breaking of the battery as claimed in claim 1, wherein: the width of the anti-breaking grid is the same as that of the thin grid line.

4. The MWT battery piece with the function of improving the grid breaking of the battery as claimed in claim 1, wherein: the width of the grid line of the anti-breaking grid is 0.03 mm.