Device and method for manufacturing lithium ion battery winding spacing

A lithium-ion battery and gap technology, applied in the direction of secondary batteries, final product manufacturing, sustainable manufacturing/processing, etc., can solve problems such as battery deformation, achieve the effect of releasing internal stress, solving deformation, and improving production efficiency

Active Publication Date: 2013-01-30
DONGGUAN AMPEREX TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the objectives of the present invention is to provide a device for manufacturing the winding gap of lithium-ion batteries in view of the deficiencies in the prior art. The device can greatly improve production efficiency, and the position, shape and size of the obtained coating layer Both thickness and thickness can be precisely controlled, and finally solve the deformation problem of the battery

Method used

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  • Device and method for manufacturing lithium ion battery winding spacing
  • Device and method for manufacturing lithium ion battery winding spacing
  • Device and method for manufacturing lithium ion battery winding spacing

Examples

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Effect test

Embodiment 1

[0028] Example 1: see figure 2 The device for manufacturing the winding gap of lithium-ion batteries provided in this embodiment includes a pole piece driving wheel 1, a diaphragm driving wheel 2 and a winding machine 3, and also includes a PLC controller 4, an encoder 5, a sensor 6 and a coating machine 7. The PLC controller 4 is electrically connected to the encoder 5, the sensor 6 and the coating machine 7 respectively, and the encoder 5 is respectively connected to the pole piece driving wheel 1, the diaphragm driving wheel 2, the winding machine 3 and the coating machine 7, and the coating The coating machine 7 is provided with a coating head 8 and a control system. Among them, the encoder 5 is a high-precision encoder 5 .

[0029] Wherein, the coating head 8 is located directly above the pole piece before winding. The coating material is contained in the coating machine 7 . The coating is ethylene carbonate or dry ice. Among them, ethylene carbonate itself is a comp...

Embodiment 2

[0030] Example 2: see image 3 The device for manufacturing the winding gap of lithium-ion batteries provided in this embodiment includes a pole piece driving wheel 1, a diaphragm driving wheel 2 and a winding machine 3, and also includes a PLC controller 4, an encoder 5, a sensor 6 and a coating machine 7. The PLC controller 4 is electrically connected to the encoder 5, the sensor 6 and the coating machine 7 respectively, and the encoder 5 is respectively connected to the pole piece driving wheel 1, the diaphragm driving wheel 2, the winding machine 3 and the coating machine 7, and the coating The coating machine 7 is provided with a coating head 8 and a control system. Among them, the encoder 5 is a high-precision encoder 5 .

[0031] Wherein, the coating head 8 is located at the side of the corner of the pole piece during winding. The coating material is contained in the coating machine 7 . The coating is ethylene carbonate or dry ice.

[0032] The invention also provid...

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Abstract

The invention belongs to the technical field of lithium ion battery manufacture, and in particular relates to a device for manufacturing lithium ion battery winding spacing. The device comprises pole piece driving wheels, a diaphragm driving wheel, a winding machine, a PLC controller, an encoder, a transducer and a coating machine. The PLC controller is electrically connected with the encoder, the transducer and the coating machine respectively; the encoder is connected with the pole piece driving wheels, the diaphragm driving wheel, the winding machine and the coating machine; and the coating machine is provided with a coating head and a control system. Compared with the prior art, the encoder and the transducer are used to collect data of transport speed and displacement of the pole pieces, and feedback the data to the PLC controller; and the PLC controller controls the coating machine to coat corners of the pole pieces, so as to achieve precise coating on the pole pieces, and obtain a coating layer with precisely controlled position, shape, size and thickness. In addition, the device can conduct automatic coating on the pole pieces to greatly improve production efficiency.

Description

technical field [0001] The invention belongs to the technical field of manufacturing lithium-ion batteries, and in particular relates to a device and method for manufacturing winding gaps of lithium-ion batteries. Background technique [0002] With the development of modern society, mobile devices such as camcorders, notebook computers, digital cameras, portable DVDs and mobile phones have become more and more widely used. Therefore, these mobile devices have an increasing demand for batteries as their power sources. Lithium-ion batteries have the advantages of high energy density, long service life, small self-discharge coefficient, flexible size (length, width, and thickness) design, and environmental protection, and have become the best power source for mobile devices. [0003] There are two production processes for lithium-ion batteries: lamination process and winding process. The winding process is adopted by most lithium-ion battery manufacturers due to its advantages...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0587
CPCY02E60/12Y02E60/10Y02P70/50
Inventor 赵义方宏新张柏清何平史仲向建辉
Owner DONGGUAN AMPEREX TECH
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