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Battery diaphragm drying oven device

A battery diaphragm and oven technology, applied in the field of battery diaphragm production systems, can solve problems such as difficulty in ensuring stable heat treatment film performance, discontinuous heat treatment process, uneven oven temperature field, etc., and achieve compact structure, good heat treatment effect, and stable wind pressure. Effect

Pending Publication Date: 2019-09-06
JIANGSU ANREDA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a battery separator oven device, which solves the discontinuous heat treatment process of the heat treatment equipment of the battery separator in the past and the uneven temperature field in the oven, which makes it difficult to ensure the heat treatment of each batch. Thin film stability issues

Method used

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  • Battery diaphragm drying oven device
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Examples

Experimental program
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Effect test

Embodiment 1

[0044] Such as figure 1 As shown, a battery separator oven device includes a box body 1 . The box body 1 is a frame structure welded with rectangular integral profiles. In order to ensure strength and rigidity, it must be made of metal profiles with corresponding strength according to the size of the box body 1. The overall frame is required to be flat and square, and the connection is firm. The surrounding and top are sealed with insulation boards, and the bottom is elevated with insulation boards. One side of the box body 1 is provided with a detachable manhole, which is convenient for maintenance personnel to enter the box body 1 for inspection and maintenance. The front side of the box body 1 is provided with a narrow rectangular film inlet, and the rear side of the box body 1 is provided with a narrow rectangular film outlet port for guiding the battery separator into and out of the box body 1 . The inlet guide roller and the outlet guide roller are fixed with brackets ...

Embodiment 2

[0053] Such as Figure 5 and Figure 6 As shown, on the basis of the first embodiment, the second embodiment is provided with a partition 17 in the box body 1, and the partition board 17 divides the inner cavity of the box body 1 into an upper cavity and a lower cavity, and the upper cavity is the drying cavity. A plurality of cylinders 18 are arranged in the lower chamber, and the push rods of the cylinders 18 are connected with the partition 17, which are suitable for driving the partition 17 to move up and down in the casing 1, so as to regulate the space size of the drying chamber. The partition 17 moves up and down in the box body 1 to regulate the space size of the drying cavity, which can effectively reduce the volume of the drying cavity and improve the heat preservation effect.

[0054] The lithium battery diaphragm production line is connected in series with multiple battery diaphragm oven devices to form a complete set of dynamic heat treatment equipment to meet th...

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Abstract

The invention relates to a battery diaphragm drying oven device which comprises a box body; the front side of the box body is provided with a film inlet; the rear side of the box body is provided witha film outlet; a drying cavity is formed in the box body and is internally provided with a diaphragm conveying device and an air blowing system; the diaphragm conveying device is suitable for conveying a battery diaphragm which enters the drying cavity; and the air blowing system is suitable for blowing air to the battery diaphragm conveyed in the drying cavity. For the battery diaphragm drying oven device, an upper transition roller set and a lower transition roller set of the diaphragm conveying device are arranged in a wave shape at intervals, each left air blowing pipe and each right airblowing pipe oppositely blow the air, and air inlet directions of each left air blowing pipe and the corresponding right air blowing pipe are opposite, so that hot air and temperature received by thesurfaces of the battery diaphragms located at different positions in the drying cavity are uniform; compared with single-side air blowing, the battery diaphragm with more uniform air permeability andthickness can be obtained through double-side air blowing; and through arrangement of a step cross beam, film penetrating operation is facilitated when a film roll is manually replaced, and maintenance of parts in the box body and wiping of the guide roller surface with the worker are facilitated.

Description

technical field [0001] The invention relates to the technical field of battery diaphragm production systems, in particular to a battery diaphragm oven device. Background technique [0002] With the increasing demand for high-performance rechargeable batteries in portable electronic devices, mobile products and communication devices, battery separators, one of the core components of batteries, have also shown a momentum of rapid development. The battery separators currently on the market are mainly polyolefin microporous membranes made of polyethylene and polypropylene. According to the different production processes of polyolefin lithium battery microporous membranes, there are two preparation methods: dry method (melt stretching method) and wet method (thermally induced phase separation method). Dry preparation of polyolefin membrane technology occupies most of the domestic high-end market. [0003] In the technology of producing polypropylene lithium battery separator by...

Claims

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Application Information

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IPC IPC(8): B29C35/04B29C35/00B29C31/04
CPCB29C35/045B29C35/002B29C31/04B29C2035/046
Inventor 黄献中宁景霞王维景小云
Owner JIANGSU ANREDA NEW MATERIAL
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