Combined battery string and manufacturing method thereof, and manufacturing method of battery assembly

A combined battery and battery technology, applied in the field of solar cells, can solve the problems of increasing the amount of silver paste on the back, low production efficiency, manual welding, etc., and achieve the effects of improving heat transfer efficiency, increasing density and efficiency, and reducing size

Active Publication Date: 2020-05-29
晶澳(扬州)新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a combined battery string and its preparation method as well as a preparation method of battery components to solve the need to increase the amount of silver paste on the back and change the battery design in order to facilitate the parallel connection of bypass diodes in the existing technology. And manual welding is required, resulting in low production efficiency

Method used

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  • Combined battery string and manufacturing method thereof, and manufacturing method of battery assembly
  • Combined battery string and manufacturing method thereof, and manufacturing method of battery assembly
  • Combined battery string and manufacturing method thereof, and manufacturing method of battery assembly

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Embodiment 1

[0064] A specific embodiment of the present invention discloses an assembled battery string, the assembled battery string includes a plurality of battery slices and a plurality of conductive connecting devices, and the plurality of conductive connecting devices are respectively located at both ends and in the middle of the assembled battery string for Convergence of combined battery strings and parallel bypass diodes; battery slices and conductive connecting devices are connected by conductive glue.

[0065] Specifically, the conductive connecting device 6 includes a first conductive connecting device 15, a second conductive connecting device 16 and a third conductive connecting device 17; the first conductive connecting device 15 and the second conductive connecting device 16 are respectively located at two terminal, the third conductive connecting device 17 is located between the first conductive connecting device 15 and the second conductive connecting device 16 .

[0066] ...

Embodiment 2

[0078] One embodiment of the present invention discloses a method for preparing a solar cell module, comprising the following steps:

[0079] Step 1: Prepare conductive connection devices and small battery slices;

[0080] Step 2: positioning the first conductive connecting device, and applying conductive glue on the second upper surface of the first conductive connecting device;

[0081] Step 3: Take a small battery slice in step 1 and place it on the first conductive connection device, and the conductive glue corresponds to the back electrode of the small battery slice;

[0082] Step 4: Continue to place small battery slices in series to a certain number;

[0083] Step 5: Apply conductive glue on the first lower surface of the third conductive connection device, the conductive glue corresponds to the front electrode of the front battery sub-slice; apply conductive glue on the second upper surface of the third conductive connection device, take a piece Step 1 The small batt...

Embodiment 3

[0103] This embodiment takes 66 pieces of 6-slice battery components as an example to specifically illustrate the preparation of the battery components; figure 1 The main flow chart of the combined battery string for the scheme, figure 2 A schematic diagram of a cell:

[0104] (1) Stretch the tin-coated copper strip with a thickness of 0.08mm and a width of 10mm, and punch it into Figure 4 , and then bend at the bend 7 to obtain a multifunctional flexible conductive connection device 6;

[0105] (2) use figure 2 The battery slices are serially welded, and the complete battery slices are inspected on the front and back, and the printed battery slices that do not meet the standards are removed. After laser cutting on the back, the battery is turned over, and then the conductive adhesive is printed on the front of the battery. battery sheet 2 with conductive glue 9 printed on the front electrode 1;

[0106] (3) The battery sheet 2 that has been laser cut and printed with c...

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Abstract

The invention relates to a combined battery string and a manufacturing method thereof, and a manufacturing method of a battery assembly, belongs to the technical field of solar batteries, and solves problems that in the prior art, in order to connect bypass diodes in parallel, a use amount of back silver paste needs to be increased, a battery design needs to be changed, and manual welding is needed so that production efficiency is low. The combined battery string comprises a plurality of battery pieces and a plurality of conductive connecting devices, and the plurality of conductive connectingdevices are located at two ends and in the middle of the combined battery string. The manufacturing method of the combined battery string comprises the following steps: manufacturing the conductive connecting devices and small battery fragments; applying a conductive adhesive to upper surfaces of the conductive connecting devices through CCD photographing and positioning; placing the small battery fragments on the conductive connecting devices; continuously placing the small battery fragments and connecting the small battery fragments in series to a certain number; stacking the conductive connecting devices; repeating the steps till that the small battery fragments reach the required number; and grabbing the conductive connecting devices to obtain the combined battery string. In the invention, low-cost and high-efficiency parallel connection of the bypass diodes is realized.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to an assembled battery string, a preparation method thereof, and a preparation method of a battery assembly. Background technique [0002] Shingled solar cell modules will be an important development route for high-efficiency photovoltaic modules. The characteristic of shingled modules is to cut the traditional whole solar cell into several small pieces (1 / 4, 1 / 5, 1 / 6, etc., which can be divided into , can also be unevenly divided), and then apply conductive glue on the electrodes of the battery slices, and the edges of adjacent battery slices are arranged to overlap up and down. After the conductive glue is cured, the battery slices are connected together to form a battery string. In this way, the conductive adhesive can be used to replace the traditional metal ribbon, and the utilization rate of the module area can be improved, thereby improving the efficiency of the module a...

Claims

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Application Information

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IPC IPC(8): H01L31/05H01L31/0443H01L31/18
CPCH01L31/0504H01L31/0508H01L31/0512H01L31/0443H01L31/188H01L31/1876Y02E10/50
Inventor 陈宏月张春阳周艳方
Owner 晶澳(扬州)新能源有限公司
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