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A method for forming four large-capacity square batteries in series

A chemical formation method and battery chemical formation technology, applied in the direction of secondary batteries, secondary battery manufacturing, electrochemical generators, etc., can solve the constraints on the industrial application of square large-capacity batteries, increase battery manufacturing costs, and affect battery cycle life To achieve the effect of saving formation time and labor costs, improving various indicators, and improving formation efficiency

Active Publication Date: 2020-07-03
陕西中丰动力能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Battery formation is the process of activating the finished battery through a certain charge and discharge process. The traditional formation process will generate gas during the formation process. These generated gases need to be removed, otherwise it will affect the performance of the battery and the cycle life of the battery.
[0003] The battery formation process in the prior art cannot effectively and conveniently remove the gas generated when forming a large-capacity prismatic battery, and the overall formation process is relatively complicated, which increases the cost of battery production and greatly restricts the square-shaped large-capacity battery. Industrial application of batteries

Method used

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  • A method for forming four large-capacity square batteries in series

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The present invention provides such figure 1 The method for forming four large-capacity square batteries in series includes the following steps:

[0030] Step 1. Equipment preparation: Prepare a flat plate with a rubber layer pasted on the top, an electric heating element inside and a vent hole running through it as a processing platform, and then prepare a battery forming machine, a gas pressure sensor and a temperature sensor installed inside. A hemispherical transparent sealing cover, a vacuuming device, an exhaust pipe, a wire connected to a socket and multiple groups of wires, each group of wires includes a wire connected to a plug, three ordinary wires , eight alligator clips;

[0031] Step 2. Equipment assembly: Connect the eight alligator clips in each group of wires to the wires connected to the plug and the two ends of the three ordinary wires, and then connect the wires connected to the socket to the battery forming machine in series, and vacuum the The equ...

Embodiment 2

[0044] The difference with above-mentioned embodiment 1 is:

[0045] Step 10. Heating: power on the electric heating element inside the processing platform and monitor the temperature between the transparent sealing cover and the processing platform in real time through the temperature sensor. The temperature between the transparent airtight cover and the processing platform reaches 45 degrees Celsius, so that the air therein is dried and the water vapor in the air is eliminated.

Embodiment 3

[0047] Different from above-mentioned embodiment 1 and embodiment 2 is:

[0048] Step 10. Heating: power on the electric heating element inside the processing platform and monitor the temperature between the transparent sealing cover and the processing platform in real time through the temperature sensor. The temperature between the transparent airtight cover and the processing platform reaches 48 degrees Celsius, so as to dry the air therein and eliminate the water vapor in the air.

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Abstract

The invention discloses a large-capacity square battery four series formation technology, which specifically includes the following steps: Step 1, equipment preparation: prepare a flat plate with a rubber layer pasted on the top, an electric heating element inside and an exhaust hole running through it as the processing platform, and then prepare a battery forming machine, a hemispherical transparent sealing cover with gas pressure sensors and temperature sensors installed inside, a vacuum pump, an exhaust pipe, a wire connected to a socket and many Group of wires, each group of wires includes a wire connected to a plug, three common wires, and eight alligator clips. The invention simplifies the connection mode of the battery and the battery forming machine, improves the forming efficiency, simplifies the forming process of the battery, saves forming time and labor cost, and improves various indexes of the large-capacity square battery.

Description

technical field [0001] The invention relates to the technical field of formation of large-capacity batteries, in particular to a method for forming four large-capacity square batteries in series. Background technique [0002] Battery formation is the process of activating the finished battery through a certain charge and discharge process. The traditional formation process will generate gas during the formation process. These generated gases need to be removed, otherwise it will affect the performance of the battery and the cycle life of the battery. . [0003] The battery formation process in the prior art cannot effectively and conveniently remove the gas generated when forming a large-capacity prismatic battery, and the overall formation process is relatively complicated, which increases the cost of battery production and greatly restricts the square-shaped large-capacity battery. Industrial application of batteries. [0004] Therefore, it is necessary to invent a metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/44H01M10/04H01M10/52H02J7/00
CPCH01M10/04H01M10/446H01M10/52H02J7/0045Y02E60/10Y02P70/50
Inventor 王晓霞夏正奎郭永民何随群
Owner 陕西中丰动力能源有限公司
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