Laser enhanced contact optimization equipment

Abstract

The utility model relates to laser enhanced contact optimization equipment which comprises a bearing table and a power supply assembly, a battery piece is placed on the bearing table, the end of the power supply assembly is in lap joint with the side, away from the bearing table, of the battery piece, and the bearing table and the power supply assembly apply bias voltage to the battery piece. The side, facing the power supply assembly, of the bearing table is provided with an insulating part, the insulating part extends in the length or width direction of the bearing table, the lap joint position of the battery piece and the power supply assembly abuts against the insulating part in the height direction of the laser enhanced contact optimization equipment, the resistance of the butt joint position of the battery piece and the insulating part can be improved, the current at the butt joint position can be reduced, and the service life of the battery piece is prolonged. Therefore, the influence on the battery piece is reduced, and the efficiency of the battery piece after the laser enhanced contact optimization process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cell processing, and in particular to a laser enhanced contact optimization device. Background Art

[0002] Laser enhanced contact optimization technology reduces the contact resistance between metal and semiconductor by irradiating the cell with laser and applying deflection voltage at the same time, thereby improving the power generation efficiency of photovoltaic cells. At present, the carrier and probe in the laser enhanced contact optimization equipment, the cell is placed on the carrier, and the probe is overlapped on the cell to apply deflection voltage to the cell. The material of the carrier is a metal material with good conductivity. When the deflection voltage is applied to the cell, the current in the cell is too large, which can easily lead to electrical failure, affecting the electrical performance and leakage protection performance of the photovoltaic cell. Utility Model Content

[0003] The present application provides a laser enhanced contact optimization device for solving the problem of excessive current in a battery cell.

[0004] The present application embodiment provides a laser enhanced contact optimization device,

[0005] A carrier for placing battery cells;

[0006] A power supply component, the end of which overlaps with a side of the battery sheet away from the supporting platform;

[0007] Among them, an insulating part is provided on the side of the supporting platform facing the power supply component, and the insulating part extends along the length direction or the width direction of the supporting platform; along the height direction of the laser enhanced contact optimization device, the position where the battery cell and the power supply component overlap abuts against the insulating part.

[0008] In a possible implementation, along the width direction of the insulating member, the distance between the overlapped position of the battery cell and the power supply assembly and the edge of the insulating member is 1 cm to 3 cm.

[0009] In a possible implementation manner, a mounting groove is provided on a side of the supporting platform facing the power supply assembly, and the insulating member is installed in the mounting groove.

[0010] In a possible implementation manner, the thickness of the insulating element is 0.3 cm to 0.8 cm.

[0011] In a possible implementation manner, the depth of the mounting groove is the same as the thickness of the insulating member.

[0012] In a possible implementation manner, the material of the insulating member is a high-strength ceramic material or epoxy resin.

[0013] In a possible embodiment, the power supply component is arranged on both opposite sides of the carrier platform along the width direction of the carrier platform; the power supply component includes a plurality of probes, and the plurality of probes are arranged at intervals along the length direction of the carrier platform; the insulating member extends along the length direction of the carrier platform, and the positions of the battery cell that overlap with the plurality of probes are all in contact with the insulating member.

[0014] In a possible embodiment, the laser enhanced contact optimization device includes at least two groups of power supply components, and at least two groups of power supply components are arranged at intervals along the length direction of the support platform; the power supply components include multiple probes, and the multiple probes are arranged at intervals along the width direction of the support platform; the insulating member extends along the width direction of the support platform, and the positions in the battery cell that overlap with the multiple probes are all in contact with the insulating member.

[0015] In a possible implementation manner, the supporting platform is made of metal material.

[0016] In a possible implementation, the laser enhanced contact optimization equipment further includes a laser emitting device, and the laser emitting device is located on a side of the support platform where the insulating member is disposed.

[0017] The present application relates to a laser enhanced contact optimization device, including a carrier and a power supply component, a battery cell is placed on the carrier, and the end of the power supply component overlaps with the side of the battery cell away from the carrier, so that the carrier and the power supply component apply a bias voltage to the battery cell. An insulating member is provided on the side of the carrier facing the power supply component, and the insulating member extends along the length or width direction of the carrier, and along the height direction of the laser enhanced contact optimization device, the position where the battery cell and the power supply component overlap abuts the insulating member, which can increase the resistance of the abutment position between the battery cell and the insulating member, reduce the current there, and then reduce the impact on the battery cell, and improve the efficiency of the battery cell after the laser enhanced contact optimization process.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a laser enhanced contact device provided in an embodiment of the present application;

[0020] Figure 2 for Figure 1 Sectional view in the AA direction;

[0021] Figure 3 A schematic diagram of the structure of the carrier provided in the embodiment of the present application;

[0022] Figure 4A schematic structural diagram of another embodiment of the laser enhanced contact device provided in the embodiment of the present application;

[0023] Figure 5 for Figure 4 Cross-sectional view in the BB direction;

[0024] Figure 6 A schematic structural diagram of another embodiment of the support platform provided in an embodiment of the present application.

[0025] Reference numerals:

[0026] 1- Loading platform;

[0027] 11- Insulation;

[0028] 12-Mounting slot;

[0029] 2- Power supply components;

[0030] 21-Probe.

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0032] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0033] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0035] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0036] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0037] The laser enhanced contact optimization device provided in the embodiment of the present application is used to process the cell, using the photoluminescence phenomenon to excite the charge carriers in the photovoltaic cell through high-intensity laser irradiation, and at the same time applying a certain deflection voltage to cause the local current to induce sintering, so that the silver paste and silicon diffuse with each other, significantly reducing the contact resistance between the metal and the semiconductor. The present application does not limit the structure of the cell processed by the laser enhanced contact optimization device, and the types of cells include but are not limited to the emitter back passivated cell (Passivated Emitter Rear Cell, PERC), oxide passivated contact cell (Tunnel Oxide Passivated Contact, TOPCon), intrinsic thin film heterojunction cell (Heterojunction with Intrinsic Thin-film, HJT), interdigitated back contact cell (Interdigitated Back Contact, IBC), perovskite cell, etc.

[0038] For PERC cells, along the thickness direction, PERC cells include front surface metal silver electrode, front surface silicon nitride passivation layer, phosphorus layer emitter, P-type base silicon layer, local aluminum back field, metal aluminum back electrode, back passivation layer (Al2O3 / SiNx). PERC cells use a passivation film to passivate the back, replacing the full aluminum back field, enhancing the internal back reflection of light in the silicon base, reducing the recombination rate on the back, and increasing the efficiency of the cell by 0.5%-1%.

[0039] For TOPCon cells, along the thickness direction, TOPCon cells include metal silver electrodes, front surface silicon nitride passivation layers, boron-doped emitters, N-type base silicon layers, diffused doping layers, ultra-thin silicon oxide, doped polysilicon, silicon nitride, and metal silver electrodes. The back of the cell is composed of a layer of ultra-thin silicon oxide (1nm to 2nm) and a layer of phosphorus-doped microcrystalline amorphous mixed Si film, which together form a passivation contact structure. This structure can block the recombination of minority carrier holes and increase the open circuit voltage and short circuit current of the cell. The ultra-thin oxide layer allows majority electrons to tunnel into the polysilicon layer while blocking the recombination of minority carrier holes. The good passivation effect of ultra-thin silicon oxide and heavily doped silicon film causes the energy band on the silicon wafer surface to bend, thereby forming a field passivation effect, greatly increasing the probability of electron tunneling, reducing contact resistance, and increasing the open circuit voltage and short circuit current of the cell, thereby improving the cell conversion efficiency.

[0040] For HJT cells, along the thickness direction, the HJT cells include a front low-temperature silver electrode, a front conductive film, an N-type amorphous silicon film, an intrinsic amorphous silicon film, an N-type base silicon layer, an intrinsic amorphous silicon film, a P-type amorphous silicon film, a back conductive film, and a back low-temperature silver electrode.

[0041] For IBC cells, along the thickness direction, IBC cells include silicon nitride anti-layer, N+ front surface field, N-type base silicon layer, P+ emitter, N+ back field, aluminum oxide passivation layer, silicon nitride anti-reflection layer, and metal silver electrode. IBC cells use ion implantation technology to obtain P and N regions with good uniformity and precisely controllable junction depth. There is no grid line blocking on the front of the cell, which can eliminate the shading current loss of the metal electrode and achieve the maximum utilization of incident photons. The short-circuit current can be increased by about 7% compared with conventional solar cells; due to the back contact structure, there is no need to consider the grid line blocking problem, and the grid line ratio can be appropriately widened, thereby reducing the series resistance and having a high fill factor; the surface passivation and surface light trapping structure can be optimized to obtain a lower front surface recombination rate and surface reflection.

[0042] For perovskite cells, along the thickness direction, the perovskite cell includes substrate material, conductive film, electron transport layer (titanium dioxide), perovskite absorption layer (hole transport layer), and metal cathode. Perovskite materials have a high light absorption coefficient and a long carrier diffusion distance. After the photons absorbed by the perovskite material are converted into electrons, they are easily collected by the electrode with low loss, so they can generate higher photoelectric voltage and current, making perovskite show higher photoelectric conversion efficiency.

[0043] like Figure 1 and Figure 4As shown, the laser enhanced contact optimization device provided in the embodiment of the present application includes a carrier 1 and a power supply component 2. The battery cell to be processed is placed on the carrier 1, and the end of the power supply component 2 overlaps with the side of the battery cell away from the carrier 1, which is used to power the battery cell. An insulating member 11 is provided on the side of the carrier 1 facing the battery cell, and the insulating member 11 can extend along the length Y or width X direction of the carrier 1. Along the height direction Z of the laser enhanced contact optimization device, one side of the battery cell overlaps with the power supply component 2, and the other side abuts against the carrier 1, and the position of the battery cell overlapping with the power supply component 2 abuts against the insulating member 11 in the carrier 1.

[0044] The support platform 1 is made of conductive material and is connected to an external power source. Together with the power supply component 2, it applies a bias voltage to the cell. One side of the cell is in contact with the support platform 1, and the other side is overlapped with the power supply device. If the support platform 1 used to place the cell is made of conductive material, the current at the location where the cell and the power supply component 2 overlap is large, which can easily lead to electrical failures and affect the electrical performance and leakage protection performance of the photovoltaic cell. An insulating member 11 is provided on the support platform 1, and the insulating member 11 is provided corresponding to the power supply component 2, so that the location where the cell overlaps with the power supply component 2 abuts against the location where the insulating member 11 is provided on the support platform 1, which can increase the resistance of the location where the cell and the insulating member 11 abut, reduce the current here, and further reduce the impact on the cell, thereby improving the efficiency of the cell after the laser enhanced contact optimization process.

[0045] In a possible embodiment, the carrier 1 is made of metal material, so that the carrier 1 has high strength, can bear a large weight of equipment and a large pressure on the battery cell during operation, has good durability, and can increase the service life of the carrier 1. The metal material also has good electrical conductivity, and after the carrier 1 is connected to an external power source, it can conduct electrical energy to the surface of the battery cell, so that the carrier 1 and the power supply device can apply a bias voltage to the battery cell.

[0046] like Figure 2 and Figure 5 As shown, the power supply assembly 2 includes a plurality of probes 21, and the ends of the probes 21 overlap the main grid on the battery cell. A pressure member is provided at one end of the probe 21 away from the battery cell. The pressure member can be an elastic member such as a spring, which can push the probe 21 to press the battery cell, reduce the possibility of the battery cell being offset, and improve the processing accuracy of the battery cell during the laser enhanced contact optimization process.

[0047] The cell sheet includes a plurality of main grids and a plurality of fine grids, which are perpendicular to each other and extend in the transverse and longitudinal directions of the cell sheet. After the cell sheet is placed on the carrier 1, the main grids in the cell sheet extend in the width direction X of the carrier 1, and the plurality of main grids are arranged at intervals in the length direction Y of the carrier 1, and the fine grids in the cell sheet extend in the length direction Y of the carrier 1, and the plurality of fine grids are arranged at intervals in the width direction X of the carrier 1.

[0048] In a possible embodiment, the laser enhanced contact optimization equipment further includes a laser emitting device, which is located on a side of the support platform 1 where the insulating member 11 is provided, and is spaced a distance from the support platform 1 for emitting laser to the battery cell.

[0049] The laser emitting device is used to emit laser to the battery cell. The laser spot falls on the fine grid of the battery cell. During the laser enhanced contact optimization process, the laser beam emitted by the laser emitting device moves along the extension direction of the fine grid to scan the entire battery cell to complete the processing of the battery cell.

[0050] like Figure 1 As shown, in a possible embodiment, a power supply assembly 2 is provided on both sides of the carrier 1 along the width direction X of the carrier 1, and a plurality of probes 21 in the power supply assembly 2 are arranged at intervals along the length direction Y of the carrier 1. The probes 21 in the power supply assembly 2 correspond to the main grid in the battery cell, so that both ends of each main grid can overlap with the probes 21, so that the power supply assembly 2 applies a bias voltage to the battery cell. During the laser enhanced contact optimization process, the laser beam emitted by the laser emitting device moves along the length direction X of the carrier 1 to scan the entire battery cell along the extension direction of the fine grid.

[0051] Insulating members 11 are provided on both sides of the carrier platform 1 in the width direction X, and the insulating members 11 extend along the length direction Y of the carrier platform 1 , so that the position of the battery cell overlapped with the probe 21 abuts against the insulating members 11 on the carrier platform 1 .

[0052] The overlapped position of the battery cell with the power supply component 2 abuts against the insulating member 11, which can reduce the current at the overlapped positions of the power supply component 2 on both sides of the battery cell, thereby reducing the possibility of excessive current in the battery cell affecting the performance of the battery cell.

[0053] like Figure 4 As shown, in a possible embodiment, the laser enhanced contact optimization device includes at least two groups of power supply components 2, and along the length direction Y of the carrier 1, at least two groups of power supply components 2 are arranged at intervals on one side of the carrier 1. A plurality of probes 21 in the power supply components 2 are arranged at intervals along the width direction X of the carrier 1.

[0054] The main grid in the cell extends along the width direction X of the carrier 1, and the fine grid extends along the length direction Y of the carrier 1. The cell can be divided into two upper and lower areas along the direction in which the fine grid extends. The probes 21 in at least two groups of power supply components 2 overlap with the main grid in the upper or lower area of ​​the cell, and multiple probes 21 in the same group of power supply components 2 overlap with different positions of the same main grid to energize the cell. In the laser enhanced contact optimization process, multiple groups of power supply components 2 first overlap with the main grid in the lower area of ​​the cell, and the laser beam emitted by the laser emitting device sweeps the upper area of ​​the cell along the extension direction of the fine grid, and then the cell is rotated so that the multiple groups of power supply components 2 overlap with the main grid in the upper area of ​​the cell, and the laser beam emitted by the laser emitting device sweeps the lower area of ​​the cell along the extension direction of the fine grid, which can reduce the possibility of the power supply component 2 blocking the cell.

[0055] The insulating member 11 on the carrier 1 extends along the width direction X of the carrier 1 , and multiple insulating members 11 are arranged at intervals along the length direction Y of the carrier 1 , so that the insulating member 11 corresponds to the power supply component 2 , and the position of the battery cell that overlaps with the power supply component 2 abuts against the insulating member 11 .

[0056] The overlapped position of the battery cell with the power supply component 2 abuts against the insulating member 11, which can reduce the current at the overlapped positions of the power supply component 2 on both sides of the battery cell, thereby reducing the possibility of excessive current in the battery cell affecting the performance of the battery cell.

[0057] The following table shows various performance parameters of the battery cells after laser contact optimization processing of the battery cells by the all-metal carrier 1 in the prior art and the carrier 1 provided with an insulating member in the embodiment of the present application. It can be seen from the following table that the battery cells processed by the carrier 1 provided with an insulating member in the embodiment of the present application have a higher filling factor (FF) and a higher efficiency of the battery cells.

[0058] Grouping Eta Uoc Isc FF R RshuntDfDr IRev2 Count Prior art 25.756 0.7327 13.713 84.64 0.00085 1755 0.103 1054 This program 25.850 0.7328 13.728 84.84 0.00085 2128 0.044 1176

[0059] In a possible embodiment, the material of the insulating member 11 may be a high-strength ceramic material or epoxy resin.

[0060] Both ceramic materials and epoxy resins have good electrical insulation and corrosion resistance properties, which makes the insulating part 11 have a better insulation effect, can reduce the current at the overlap position of the battery cell and the power supply component 2, and can also bear a larger equipment weight and pressure during operation.

[0061] like Figure 2 and Figure 5As shown, in a possible embodiment, along the width direction of the insulating member 11, the overlap position of the battery cell and the power supply component 2 is located in the middle position of the insulating member 11, and the spacing between both sides of the overlap position of the battery cell and the power supply component 2 and the edge of the insulating member 11 is 1 cm to 3 cm.

[0062] The insulating member 11 can reduce the current at the overlap position of the battery cell and the power supply component 2. If the distance between the overlap position of the battery cell and the power supply component 2 and the edge of the insulating member 11 is less than 1 cm, the insulating member 11 can increase the resistance, which in turn has a small regulating effect on the current at the overlap position of the battery cell and the power supply component 2. There is still a risk of excessive current at the overlap position of the battery cell and the power supply component 2. If the distance between the overlap position of the battery cell and the power supply component 2 and the edge of the insulating member 11 is greater than 3 cm, the insulating member 11 can increase the resistance, which in turn has a large regulating effect on the current at the overlap position of the battery cell and the power supply component 2, resulting in too small current at the overlap position of the battery cell and the power supply component 2, and the effect of laser enhanced contact optimization of the abutment area between the battery cell and the insulating member 11 is poor. The distance between the two sides of the overlap position of the battery cell and the power supply component 2 and the edge of the insulating member 11 can be 1 cm, 2 cm, 3 cm, etc., preferably 1 cm, which can reduce the possibility of causing the above-mentioned defects.

[0063] In a possible embodiment, the insulating member 11 is disposed on a side of the carrier 1 for placing the battery cell, and the thickness of the insulating member 11 is smaller than the thickness of the carrier 1 , which may be 0.3 cm to 0.8 cm.

[0064] If the thickness of the insulating member 11 is less than 0.3 cm, the insulating effect of the insulating member 11 is poor, and there is still a risk of excessive current at the overlap position of the battery cell and the power supply component 2; if the thickness of the insulating member 11 is greater than 0.8 cm, the insulating member 11 can increase the resistance, resulting in too little current at the overlap position of the battery cell and the power supply component 2, and the effect of laser enhanced contact optimization of the contact area between the battery cell and the insulating member 11 is poor. The thickness of the insulating member 11 can be 0.3 cm, 0.5 cm, 0.8 cm, etc., which can reduce the possibility of causing the above-mentioned defects.

[0065] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a mounting groove 12 is provided on the carrying platform 1 , and the mounting groove 12 is located on a side of the carrying platform 1 facing the power supply component 2 . The insulating member 11 is installed in the mounting groove 12 .

[0066] The insulating member 11 is fixed in the mounting groove 12 by adhesive or mechanical fixing technology. The side wall of the mounting groove 12 contacts the side of the insulating member 11, which can limit the position of the insulating member 11 on the supporting platform 1 along the width direction X and the length direction Y of the supporting platform 1, thereby improving the stability of the insulating member 11 after being installed on the supporting platform 1, and reducing the possibility of the insulating member 11 falling off.

[0067] like Figure 2 and Figure 5 As shown, in a possible embodiment, the depth of the mounting groove 12 is the same as the thickness of the insulating member 11 , and the insulating member 11 can be completely inserted into the mounting groove 12 .

[0068] After the insulating member 11 is installed in the mounting groove 12, the upper surface of the insulating member 11 is flush with the upper surface of the carrier 1. After the battery cell is placed on the carrier 1, the battery cell can abut against the insulating member 11 and other areas on the carrier 1 at the same time, so that the carrier 1 and the power supply device can apply a bias voltage to the battery cell at the same time, and at the same time, the overlap position of the battery cell and the power supply component 2 can abut against the insulating member 11.

[0069] The present application relates to a laser enhanced contact optimization device, including a carrier 1 and a power supply component 2. A battery cell is placed on the carrier 1, and the end of the power supply component 2 overlaps with the side of the battery cell away from the carrier 1, so that the carrier 1 and the power supply component 2 apply a bias voltage to the battery cell. An insulating member 11 is provided on the side of the carrier 1 facing the power supply component 2. The insulating member 11 extends along the length Y or width X direction of the carrier 1. Along the height direction Z of the laser enhanced contact optimization device, the overlapped position of the battery cell and the power supply component 2 abuts against the insulating member 11, which can increase the resistance of the abutting position of the battery cell and the insulating member 11, reduce the current there, and then reduce the impact on the battery cell, and improve the efficiency of the battery cell after the laser enhanced contact optimization process.

[0070] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A laser enhanced contact optimization device, characterized in that: A carrier platform (1) for placing battery cells; A power supply component (2), wherein an end of the power supply component (2) overlaps a side of the battery cell away from the supporting platform (1); An insulating member (11) is provided on the side of the carrier platform (1) facing the power supply component (2), and the insulating member (11) extends along the length direction or the width direction of the carrier platform (1); along the height direction of the laser enhanced contact optimization device, the position where the battery cell and the power supply component (2) overlap abuts against the insulating member (11).

2. The laser enhanced contact optimization device according to claim 1, characterized in that: Along the width direction of the insulating member (11), the distance between the overlapped position of the battery sheet and the power supply assembly (2) and the edge of the insulating member (11) is 1 cm to 3 cm.

3. The laser enhanced contact optimization device according to claim 1, characterized in that: A mounting groove (12) is provided on a side of the support platform (1) facing the power supply component (2), and the insulating component (11) is mounted in the mounting groove (12).

4. The laser enhanced contact optimization device according to claim 1, characterized in that: The thickness of the insulating member (11) is 0.3 cm to 0.8 cm.

5. The laser enhanced contact optimization device according to claim 3, characterized in that: The depth of the mounting groove (12) is the same as the thickness of the insulating member (11).

6. The laser enhanced contact optimization device according to claim 1, characterized in that: The material of the insulating member (11) is a high-strength ceramic material or epoxy resin.

7. The laser enhanced contact optimization device according to claim 1, characterized in that: The power supply assembly (2) is arranged on both opposite sides of the carrier platform (1) along the width direction of the carrier platform (1); the power supply assembly (2) comprises a plurality of probes (21), and the plurality of probes (21) are arranged at intervals along the length direction of the carrier platform (1); the insulating member (11) extends along the length direction of the carrier platform (1), and the positions of the battery cell that overlap with the plurality of probes (21) are all in contact with the insulating member (11).

8. The laser enhanced contact optimization device according to claim 1, characterized in that: The laser enhanced contact optimization device comprises at least two groups of power supply components (2), and at least two groups of power supply components (2) are arranged at intervals along the length direction of the carrier platform (1); the power supply components (2) comprise a plurality of probes (21), and the plurality of probes (21) are arranged at intervals along the width direction of the carrier platform (1); the insulating member (11) extends along the width direction of the carrier platform (1), and the positions of the battery cell that overlap with the plurality of probes (21) are all in contact with the insulating member (11).

9. The laser enhanced contact optimization device according to claim 1, characterized in that: The supporting platform (1) is made of metal material.

10. The laser enhanced contact optimization device according to any one of claims 1 to 9, characterized in that: The laser enhanced contact optimization device further comprises a laser emitting device, wherein the laser emitting device is located on a side of the support platform (1) where the insulating member (11) is provided.

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