CN110181206B - Battery cell separation and handling device, battery cell adjustment method and battery cell string welding machine - Google Patents

Abstract

The present invention relates to a battery cell slice conveying device, which comprises a moving part, an adjusting part, a first sucking part and a second sucking part, wherein: the adjusting part and the first sucking part are installed on the moving part in parallel, and the second sucking part is installed on the adjusting part; the moving part drives the first sucking part and the adjusting part drives the second sucking part to move between a cell taking position and a cell placing position; the adjusting part drives the second sucking part to move to adjust the battery cell adsorbed by the second sucking part. The battery cell is conveyed by the setting of the moving part, the position adjustment of the battery cell adsorbed by the second sucking part relative to the battery cell adsorbed by the first sucking part is achieved by the setting of the adjusting part, and the overall and relative position adjustment of the battery cell adsorbed by the first sucking part and the battery cell adsorbed by the second sucking part is achieved by the cooperation of the moving part and the adjusting part.

Description

Battery cell separation and handling device, battery cell adjustment method and battery cell string welding machine

Technical Field

The invention relates to a battery cell segmentation and conveying device, a battery cell adjustment method and a battery cell string welding machine, and belongs to the technical field of photovoltaic equipment.

Background technique

A half-cell module is composed of a half-cell battery string, which is made up of small pieces of battery cells broken off from a whole cell and welded together.

When cutting the battery cells, the main grid lines of the battery cells need to be perpendicular to the conveying direction. When used in subsequent production, the main grid lines of the battery cells need to be adjusted to be parallel to the conveying direction, and the consistency of the head and tail of each battery cell on the same conveyor line must be ensured. Therefore, when the stringer produces half-cell strings, it is necessary to first use a grabbing device to rotate the broken small pieces to a certain angle and transport them to the conveyor line, and then use a position adjustment device set on the conveyor line to grab one of the small pieces and adjust the position to ensure the consistency of the battery cells. The subsequent welding device uses welding tape to weld the adjusted small pieces into a string.

However, this method of processing battery cells is inefficient and costly, and is not conducive to the efficient and automated production and processing of half-cell modules.

Summary of the invention

The object of the present invention is to provide a battery cell separation and transportation device, a battery cell adjustment method and a battery cell string welding machine, which can realize the distance separation, transportation and position adjustment of battery cells, have high efficiency, and can meet the needs of multiple production lines.

The purpose of the present invention is to be achieved through the following technical solutions:

In the first aspect, the present application provides a battery cell slice transport device, which includes a moving part, an adjustment part, a first suction part and a second suction part, wherein: the adjustment part and the first suction part are installed in parallel on the moving part, and the second suction part is installed on the adjustment part; the moving part drives the first suction part and drives the second suction part through the adjustment part to move between a cell taking position and a cell placing position; the adjustment part drives the second suction part to move so as to adjust the battery cell adsorbed by the second suction part.

The battery cell is transported by the movable part, and the position of the battery cell sucked by the second suction part relative to the battery cell sucked by the first suction part is adjusted by the adjusting part. That is, during the transportation of the battery cell sucked by the second suction part, the position of the battery cell sucked by the second suction part can be adjusted simultaneously, thereby avoiding the process of adjusting the position of the second suction part alone, thereby improving production efficiency.

Optionally, the adjusting portion includes a separation portion for driving the second suction portion to move away from the first suction portion and a rotation portion for driving the second suction portion to rotate.

The separation section enables the battery sheet sucked by the second sucking section to be separated from the battery sheet sucked by the first sucking section, and the rotation section drives the battery sheet sucked by the second sucking section to adjust its angle.

Optionally, the separation section includes a lifting device, which drives the second suction part to rise or fall, so that the first battery cell adsorbed by the first suction part and the second battery cell adsorbed by the second suction part are separated by a predetermined distance in the vertical height; or, the separation section includes a transverse movement device, which drives the second suction part to move horizontally, so that the first battery cell adsorbed by the first suction part and the second battery cell adsorbed by the second suction part are separated by a predetermined distance in the horizontal position.

There are two ways to realize the separation of the first battery cell and the second battery cell by the separation section: driving the first suction part to rise or fall by the lifting device, so as to realize the vertical separation of the first battery cell and the second battery cell; driving the first battery cell and the second battery cell to separate in the horizontal direction by the transverse movement device.

Optionally, the lifting device includes an elastic device and a guide device, the second suction part is installed at the lower end of the guide device, the upper end of the guide device is connected to the rotating part, the elastic device is arranged between the second suction part and the rotating part, and the elastic device is used to drive the second suction part to move along the guide direction of the guide device.

The elastic device disposed between the second suction part and the rotating part is used to drive the second suction part to rise or fall, thereby achieving a vertical height separation between the second battery sheet sucked by the second suction part and the first battery sheet sucked by the first suction part.

Optionally, the rotating section also includes a swing arm and a rotating drive device, and the rotating drive device and the guide device are eccentrically arranged on the swing arm.

By eccentrically setting the rotating drive device and the guide device, when the rotating drive device drives the swing arm to rotate, the guide device and the second suction part installed on the guide device are driven to move away from the first suction part during the horizontal rotation process, thereby further separating the grasped first battery cell and the second battery cell.

Optionally, the moving part includes a rotating sub-part, a mounting plate is arranged on the rotating sub-part, a first suction part and an adjusting part are arranged on the mounting plate, and the first suction part and/or the adjusting part are adjustably connected to the mounting plate.

The overall angle of the first suction part and the adjustment part is adjusted by the rotating sub-part, and at least one of the first suction part and the adjustment part is adjustably connected to the mounting plate, thereby ensuring the consistency of the suction height of the battery cell sucked by the first suction part and the second suction part.

Optionally, the first suction part further includes a connecting rod and a first suction sub-section, and the first suction sub-section is adjustably connected to the mounting plate via the connecting rod.

The arrangement of the connecting rod ensures that the height between the first suction section and the mounting plate is adjustable.

In the second aspect, the present application provides a battery cell adjustment method, which is applied to the first aspect and the battery cell slice transport device that may be implemented in the first aspect, and the battery cell adjustment method includes: a moving part drives the first suction part and the second suction part to move to the cell picking position, the first suction part sucks the first battery cell, and the second suction part sucks the second battery cell; the moving part drives the first suction part and the second suction part to rise; the adjustment part drives the second battery cell sucked by the second suction part away from the first battery cell sucked by the first suction part, and the adjustment part drives the second battery cell on the second suction part to adjust the angle; the moving part drives the first suction part and the second suction part to move to the cell placing position, the first suction part puts down the first battery cell, and the second suction part puts down the second battery cell; wherein, at least one of the first battery cell and the second battery cell is a standard battery cell, or a battery slice formed by breaking the standard battery cell.

The battery cell is grasped by the first suction part and the second suction part, and the position and angle of the battery cell on the second suction part are adjusted by the adjustment part, thereby ensuring the consistency of the first battery cell and the second battery cell. The first suction battery cell and the second battery cell are driven by the moving part to move and adjust as a whole, thereby avoiding the process of adjusting the position of the second battery cell alone, and improving production efficiency.

On the third aspect, the present application also provides a battery cell stringer, which applies the battery cell slice handling device of the first aspect, and the battery cell stringer also includes a battery cell feeding device and a battery cell cutting and breaking device, wherein: the battery cell feeding device is used to provide battery cells to the battery cell cutting and breaking device, the battery cell cutting and breaking device is used to break the battery cell to obtain battery slices, and the battery cell slice handling device is used to pick up, separate, adjust the angle of the battery slices obtained after breaking, and then provide them to the subsequent workstation.

The battery cell feeding device is used to load the battery cells, the battery cell breaking device is used to break the battery cells, the battery cell angle and position adjustment is achieved through the battery cell separation and conveying device, and the adjusted battery cells are transported to the downstream for use, thus avoiding the process of adjusting the position of the battery cells individually and improving production efficiency.

Optionally, the battery cell stringing machine also includes a glue dispensing device, a battery cell stacking device and a conveying and welding device, the glue dispensing device is used to apply conductive glue to the battery cell slices, the battery cell stacking device stacks the battery slices adjusted by the battery cell slice transporting device on the conveying and welding device in a predetermined manner, and the conveying and welding device heats and welds the stacked battery slices into a string and then outputs them; or, the battery cell stringing machine also includes a battery cell loading device, a solder strip loading device, a conveying device and a welding device, the battery cell loading device is used to transport the battery slices provided by the battery cell slice transporting device to the conveying device, the solder strip loading device is used to provide solder strips to the conveying device, the solder strip loading device and the battery cell loading device stack the solder strips and battery slices on the conveying device in a predetermined order, the conveying device transports the stacked solder strips and battery slices to the welding device, and the welding device welds the stacked solder strips and battery slices into a string.

The battery cells after glue dispensing are stacked into strings by a stacking device, and the stacked battery strings are heated and welded into battery strings by a conveying and welding device; or the battery cells and welding ribbons are placed on a conveying device in a predetermined order by a battery cell loading device and a welding ribbon loading device, and the conveying device conveys the stacked welding ribbons and battery cells to a welding device, and the welding device welds the welding ribbons and battery cells into strings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a battery cell separation and transportation device provided in one embodiment of the present invention;

FIG. 2 is a partial schematic diagram of the three-dimensional structure of a battery cell separation and transportation device provided in one embodiment of the present invention.

Detailed ways

The exemplary embodiments will be described in detail below, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

The present application provides a battery cell separation and transportation device, a battery cell adjustment method and a battery cell string welding machine, which can realize the distance separation, transportation and position adjustment of battery cells, have high efficiency, and can meet the needs of multiple production lines.

Figure 1 is a schematic diagram of the three-dimensional structure of a battery cell slice transport device provided by an embodiment of the present invention, the battery cell slice transport device includes a moving part 1, an adjusting part 2, a first suction part 3 and a second suction part 4, wherein: the adjusting part 2 and the first suction part 3 are installed in parallel on the moving part 1, and the second suction part 4 is installed on the adjusting part 2; the moving part 1 drives the first suction part 3 and drives the second suction part 4 through the adjusting part 2 to move between a cell taking position and a cell placing position; the adjusting part 2 drives the second suction part 4 to move so as to adjust the battery cell adsorbed by the second suction part 4.

In one implementation, the moving part 1 may include a lifting drive and a translation drive. The lifting drive is used to drive the first suction part 3 and the second suction part 4 to suck and lift the battery cell. The first suction part sucks the first battery cell, and the second suction part sucks the second battery cell. The translation drive is used to translate the battery cell lifted to the position by the lifting drive to the top of the cell placement position, waiting for the lifting drive to place the cell. The lifting drive may be a slider rail pair driven by a lifting servo motor or a piston rod driven by a cylinder. The translation drive may be a slider rail pair driven by a transverse servo drive or a piston rod driven by a transverse cylinder. In addition, the translation drive may also use a rotating cylinder or a rotating motor to move the battery cell from above the cell taking position to above the cell placement position. The first suction part 3 and the second suction part 4 each include at least one group of suction cup groups for sucking the battery cell, and each suction cup group includes at least one suction cup.

The battery cell is transported by the setting of the moving part 1, and the position adjustment of the second battery cell sucked by the second sucking part 4 relative to the first battery cell sucked by the first sucking part 3 is achieved by the setting of the adjusting part 2. The overall and relative position adjustment of the first battery cell sucked by the first sucking part 3 and the second battery cell sucked by the second sucking part 4 is achieved by the cooperation of the moving part 1 and the adjusting part 2. That is, during the process of transporting the battery cell sucked by the second sucking part, the position adjustment of the battery cell sucked by the second sucking part can be achieved at the same time, avoiding the process of adjusting the position of the second sucking part alone, and improving production efficiency.

Optionally, the adjusting portion 2 includes a separation portion for driving the second suction portion 4 to move away from the first suction portion 3 and a rotation portion for driving the second suction portion 4 to rotate.

In one implementation, the rotating section can be driven by a rotating cylinder or a rotating motor. The rotating section in the present application is driven by a rotating cylinder, and a separation section for realizing the separation of the battery cells is installed on the rotating cylinder. After the separation section drives the second battery cell on the second suction part 4 and the first battery cell on the first suction part 3 to separate by a certain distance, the rotating cylinder rotates to adjust the battery cell sucked by the second suction part 4 to a predetermined angle. In one implementation, in order to maintain the consistency between the first battery cell sucked by the first suction part 3 and the second battery cell grabbed by the second suction part 4, the rotating cylinder needs to drive the second suction part 4 to rotate 180 degrees.

The separation section enables the second battery sheet sucked by the second sucking part 4 to be separated from the first battery sheet sucked by the first sucking part 3 , and the rotation section drives the angle of the second battery sheet sucked by the second sucking part 4 to be adjusted.

Optionally, the separation section includes a lifting device, which drives the second suction part 4 to rise or fall so that the first battery cell adsorbed by the first suction part 3 and the second battery cell adsorbed by the second suction part 4 are separated by a predetermined distance in the vertical height; or, the separation section includes a transverse movement device, which drives the second suction part 4 to move horizontally so that the first battery cell adsorbed by the first suction part 3 and the second battery cell adsorbed by the second suction part 4 are separated by a predetermined distance in the horizontal position.

In one implementation, the separation section may be a lifting device, which drives the first suction part 3 to rise or fall, so as to achieve vertical height separation between the first battery cell and the second battery cell. The lifting device may be a lifting cylinder, a tension spring, or a compression spring. In another implementation, the separation section may be a transverse movement device, which drives the first battery cell and the second battery cell to separate in the horizontal direction. The transverse movement device may be a sliding block rail pair driven by a telescopic cylinder or a motor. The setting of the separation section ensures that the second battery cell will not touch the first battery cell when the angle is adjusted.

Optionally, the lifting device includes an elastic device 211 and a guide device, the second suction part 4 is installed at the lower end of the guide device, the upper end of the guide device is connected to the rotating part, the elastic device 211 is arranged between the second suction part 4 and the rotating part, and the elastic device 211 is used to drive the second suction part 4 to move along the guiding direction of the guide device.

FIG2 is a partial schematic diagram of the three-dimensional structure of a battery cell separation and handling device provided by an embodiment of the present invention. Referring to FIG2 , it can be seen that in one implementation, the elastic device 211 is a compression spring, which is sleeved on the guide device, the upper end of the compression spring abuts on the rotating section, and the lower end of the compression spring abuts on the second suction part 4. When the second suction part 4 reaches the position for taking the battery cell, the compression spring is compressed, and the moving part 1 drives the first suction part 3 and the adjustment part 2 to rise. Under the action of the compression spring, the second suction part 4 moves downward, realizing the separation of the battery cell sucked by the first suction part 3 and the battery cell sucked by the second suction part 4 in vertical height.

Optionally, the rotating section further includes a swing arm 221 and a rotating drive device 222 , and the rotating drive device 222 and the guide device are eccentrically arranged on the swing arm 221 .

In one implementation, the rotating drive device 222 is a rotating cylinder, the swing arm 221 is installed on the rotating cylinder, the rotating cylinder is installed above the first end of the swing arm 221, and a guide device is installed below the second end of the swing arm 221. The upper end of the compression spring abuts against the swing arm 221, and the lower end of the compression spring abuts against the second suction part 4.

The eccentric setting of the rotating driving device 222 and the guiding device enables the rotating driving device 222 to drive the swing arm 221 to rotate, thereby driving the guiding device and the second suction part 4 installed on the guiding device to move away from the first suction part 3 during the horizontal rotation process, thereby further separating the grasped first battery cell and the second battery cell.

Optionally, the moving part 1 includes a rotating part 11, a mounting plate 12 is provided on the rotating part 11, a first suction part 3 and an adjustment part 2 are provided on the mounting plate 12, and the first suction part 3 and/or the adjustment part 2 are adjustably connected to the mounting plate 12. When the first suction part is adjustably connected to the mounting plate, the consistent adjustment of the suction heights of the first suction part and the second suction part is achieved by adjusting the mounting height of the first suction part; when the adjustment part is adjustably connected to the mounting plate, the consistent adjustment of the suction heights of the first suction part and the second suction part is achieved by adjusting the mounting height of the adjustment part; when both the first suction part and the second suction part are adjustably connected to the mounting plate, the first suction part or the second suction part can be adjusted separately, or the first suction part and the second suction part can be adjusted simultaneously to achieve the consistent adjustment of the suction heights of the first suction part and the second suction part.

In one implementation, the moving part 1 also includes a rotating section 11 for overall adjustment of the battery cells sucked by the first suction part 3 and the second suction part 4. The rotating section 11 can be a motor or a rotating cylinder. The rotating section 11 drives the mounting plate 12 to rotate, thereby achieving overall angle adjustment of the battery cells sucked by the first suction part 3 and the adjustment part 2.

Optionally, the first suction portion 3 further includes a connecting rod 31 and a first suction sub-portion 32 , and the first suction sub-portion 32 is adjustably connected to the mounting plate 12 via the connecting rod 31 .

The arrangement of the connecting rod 31 ensures that the height between the first suction section 32 and the mounting plate 12 is adjustable.

In summary, the present application provides a battery cell slice transporting device, which drives the transport of battery cells through the moving part 1, and drives the position and angle change of the second suction part 4 through the adjustment part 2, thereby ensuring the consistency of the front-to-back order of the battery cells sucked by the first suction part 3 and the battery cells sucked by the second suction part 4. The setting of the rotating part 11 realizes the adjustment of the overall angle of the battery cells sucked by the first suction part 3 and the second suction part 4 when transporting and placing the battery cells. The cooperation of the moving part 1 and the adjustment part 2 realizes the distance separation, transportation and position adjustment of the battery cells, which is highly efficient and can meet the needs of multiple production lines.

The present application provides a battery cell adjustment method, which is applied to the first aspect and the battery cell slice handling device that may be realized in the first aspect, and the battery cell adjustment method includes: the moving part drives the first suction part 3 and the second suction part 4 to move to the cell taking position, the first suction part 3 sucks the first battery cell, and the second suction part 4 sucks the second battery cell; the moving part drives the first suction part 3 and the second suction part 4 to rise; the adjustment part 2 drives the second battery cell sucked by the second suction part 4 to move away from the first battery cell sucked by the first suction part 3, and the adjustment part 2 drives the second battery cell on the second suction part 4 to adjust the angle; the moving part drives the first suction part 3 and the second suction part 4 to move to the cell placing position, the first suction part 3 puts down the first battery cell, and the second suction part 4 puts down the second battery cell; wherein at least one of the first battery cell and the second battery cell is a standard battery cell, or a battery slice formed by breaking a standard battery cell. The standard battery cell referred to in the present application is a common battery cell on the market. According to its structure, it can be divided into single crystal cell or multi-crystalline cell; according to its number of grid lines, it can be common three-grid, four-grid, five-grid, six-grid cell or 12-grid, 18-grid, 36-grid and other dense grid cells. The size of the standard cell can be 156 mm × 156 mm, or 125 mm × 125 mm, or 150 mm × 150 mm.

In one implementation, the battery cell adjustment method may further include: the rotating sub-part 11 drives the first suction part 3 and the adjustment part 2 to rotate as a whole, and adjusts the battery cell sucked by the first suction part 3 and the second suction part 4 to a preset angle. The adjustment step of the rotating sub-part 11 driving the first suction part 3 and the adjustment part 2 to rotate may be set after the moving part drives the first suction part 3 and the second suction part 4 to rise and before the first battery cell and the second battery cell are separated; or the adjustment step of the rotating sub-part 11 driving the first suction part 3 and the adjustment part 2 to rotate may be set after the first battery cell and the second battery cell are separated.

The battery cell is grasped by the first suction part 3 and the second suction part 4, and the position and angle of the battery cell on the second suction part 4 are adjusted by the adjustment part 2, thereby ensuring the consistency of the first battery cell and the second battery cell, and the overall transportation and angle adjustment of the first battery cell and the second battery cell are achieved by the setting of the moving part 1. The process of adjusting the position of the second battery cell alone is avoided, thereby improving production efficiency.

On the third aspect, the present application also provides a battery cell stringer, which applies the battery cell slice handling device of the first aspect, and the battery cell stringer also includes a battery cell feeding device and a battery cell cutting and breaking device, wherein: the battery cell feeding device is used to provide battery cells to the battery cell cutting and breaking device, the battery cell cutting and breaking device is used to break the battery cell to obtain battery slices, and the battery cell slice handling device is used to pick up, separate, adjust the angle of the battery slices obtained after breaking, and then provide them to the subsequent workstation.

In one implementation, the cell feeding device takes the cell out of the battery box, conveys it to the cell splitting device, and splits it into two cell slices. The cell slice handling device is used to pick up, separate, and adjust the angle of the broken cell slices. Alternatively, the cell stringing machine directly uses the cells that have not been split and broken to directly produce the battery string. The cell feeding device takes the cell out of the battery box, the cell splitting device does not process the cell, and the cell slice handling device picks up two standard cells and adjusts their positions for use in the subsequent workstations, avoiding the process of adjusting the positions of the cells individually and improving production efficiency.

Optionally, the battery cell string welding machine also includes a glue dispensing device, a battery cell stacking device and a conveying and welding device. The glue dispensing device is used to apply conductive glue to the battery cell slices. The battery cell stacking device stacks the battery slices adjusted by the battery cell slice transporting device on the conveying and welding device in a predetermined manner. The conveying and welding device heats and welds the stacked battery slices into strings and then outputs them.

In one implementation, the battery string is formed by directly stacking and welding the split battery cell units, and the battery cells are stacked into a string by a stacking device. The glue dispensing device includes a nozzle for spraying conductive glue, and the conductive glue can be solder paste. The stacking device can be a suction cup driven by a manipulator, the suction cup is used to suck the battery cell, and the manipulator is used to drive the suction cup to suck and place the battery cell. The stacked battery string is heated and welded into a battery string by a conveying and welding device. The conveying and welding device includes a conveyor belt, the conveyor belt is used to receive the stacked battery string, and a heating plate for supporting the conveyor belt is provided under the conveyor belt. The heating plate simultaneously heats the stacked battery cells on the conveyor belt, so that the battery cells are welded to form a battery string.

Optionally, the battery cell string welding machine also includes a battery cell loading device, a solder strip loading device, a conveying device and a welding device. The battery cell loading device is used to transport the battery slices provided by the battery cell slice transporting device to the conveying device. The solder strip loading device is used to provide solder strips to the conveying device. The solder strip loading device and the battery cell loading device stack the solder strips and the battery slices on the conveying device in a predetermined order. The conveying device transports the stacked solder strips and battery slices to the welding device, and the welding device welds the stacked solder strips and battery slices into a string.

In one implementation, the battery cells and solder strips are placed on a conveying device in a predetermined order by a battery cell loading device and a solder strip loading device. The conveying device conveys the stacked solder strips and battery cells to a welding device, and the solder strips and battery cells are welded in series into strings by the welding device.

To summarize, the above-mentioned battery cell string welding machine of the present application adjusts the battery cells to a predetermined position through a battery cell segmentation and conveying device, stacks the battery cells after glue application into a string through a stacking device, and heats and welds the stacked battery strings into a battery string through a conveying and welding device; or places the battery cells and welding ribbons on a conveying device in a predetermined order through a battery cell loading device and a welding ribbon loading device, and the conveying device conveys the stacked welding ribbons and battery cells to a welding device, and the welding device welds the welding ribbons and battery cells into a string.

The above is only for explaining the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a battery piece burst handling device, its characterized in that, battery piece burst handling device includes moving part, adjustment portion, first suction portion and second suction portion, wherein:

the adjusting part and the first suction part are arranged on the moving part in parallel, and the second suction part is arranged on the adjusting part;

The moving part drives the first suction part and the second suction part to move between a slice taking position and a slice placing position through the adjusting part;

the adjusting part drives the second suction part to move so as to adjust the battery piece adsorbed by the second suction part;

In the process of carrying the battery piece sucked by the second suction part, the adjusting part simultaneously adjusts the position of the battery piece sucked by the second suction part;

The adjusting part comprises a separation part for driving the second suction part to be far away from the first suction part and a rotation part for driving the second suction part to rotate 180 degrees;

The rotating part is driven by a rotating cylinder, a separating part for realizing the distance separation of the battery pieces is arranged on the rotating cylinder, and the separating part drives the second battery piece on the second suction part and the first battery piece on the first suction part to be separated by a certain distance, and then the rotating cylinder rotates to rotate the second battery piece sucked by the second suction part by 180 degrees;

The arrangement of the separation parts ensures that the first battery piece cannot be touched when the angle of the second battery piece is adjusted.

2. The battery piece-dividing and conveying device according to claim 1, wherein the dividing section comprises a lifting device, and the lifting device drives the second suction part to ascend or descend, so that the first battery piece adsorbed by the first suction part and the second battery piece adsorbed by the second suction part are separated by a predetermined distance in vertical height;

Or alternatively

The separation part comprises a transverse moving device, and the transverse moving device drives the second suction part to horizontally move so that the first battery piece adsorbed by the first suction part and the second battery piece adsorbed by the second suction part are separated by a preset distance on the horizontal position.

3. The battery piece-dividing and carrying device according to claim 2, wherein the lifting device comprises an elastic device and a guiding device, the second suction part is mounted at the lower end of the guiding device, the upper end of the guiding device is connected with the rotating part, the elastic device is arranged between the second suction part and the rotating part, and the elastic device is used for driving the second suction part to move along the guiding direction of the guiding device.

4. The battery slice handling apparatus of claim 3 further comprising a swing arm and a rotation drive means on the rotation subsection, the rotation drive means and the guide means being eccentrically disposed on the swing arm.

5. The apparatus according to claim 1, wherein the moving portion includes a rotating portion on which a mounting plate is provided, the mounting plate being provided with the first suction portion and the adjusting portion,

The first suction part and/or the adjusting part is/are adjustably connected with the mounting plate.

6. The battery slice handling apparatus of claim 5, wherein the first suction portion further comprises a connecting rod and a first suction portion, the first suction portion being adjustably connected to the mounting plate via the connecting rod.

7. A battery piece adjusting method, wherein the battery piece adjusting method is applied to the battery piece carrying device according to claims 1-6, and the battery piece adjusting method comprises the following steps:

The moving part drives the first suction part and the second suction part to move to the sheet taking position, the first suction part sucks the first battery sheet, and the second suction part sucks the second battery sheet;

The moving part drives the first suction part and the second suction part to rise;

The adjusting part drives the second battery piece sucked by the second sucking part to be far away from the first battery piece sucked by the first sucking part, and the adjusting part drives the second battery piece on the second sucking part to perform angle adjustment;

The moving part drives the first suction part and the second suction part to move to a sheet placing position, the first suction part places down the first battery sheet, and the second suction part places down the second battery sheet;

at least one of the first battery piece and the second battery piece is a standard battery piece or a battery piece formed by breaking the standard battery piece.

8. A battery piece stringer, characterized in that the battery piece stringer comprises the battery piece handling device, the battery piece feeding device and the battery piece breaking device according to claims 1-6, wherein:

The battery piece feeding device is used for providing battery pieces for the battery piece breaking device,

The battery piece breaking device is used for breaking off the battery piece to obtain the battery piece,

The battery piece carrying device is used for picking, separating and adjusting angles of the battery pieces obtained after breaking off and then providing the battery pieces for a subsequent station.

9. The battery cell series welding machine according to claim 8, wherein,

The battery piece series welding machine further comprises a dispensing device, a battery piece stacking device and a conveying welding device, wherein the dispensing device is used for coating conductive adhesive on the battery piece pieces, the battery piece stacking device stacks the battery pieces adjusted by the battery piece carrying device onto the conveying welding device according to a preset mode, and the conveying welding device heats and welds the stacked battery pieces into a series and then outputs the series;

Or alternatively

The battery piece string welding machine further comprises a battery piece feeding device, a welding strip feeding device, a conveying device and a welding device, wherein the battery piece feeding device is used for conveying the battery pieces provided by the battery piece carrying device to the conveying device, the welding strip feeding device is used for providing welding strips for the conveying device, the welding strip feeding device and the battery pieces are stacked on the conveying device according to a preset sequence, the conveying device conveys the stacked welding strips and battery pieces to the welding device, and the welding device welds the stacked welding strips and battery pieces into strings.