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Casting extrusion device for battery diaphragm production

A technology of cast extrusion and battery diaphragm, which is applied in the direction of battery pack parts, circuits, electrical components, etc., can solve the problems of uneven cooling at both ends of the extrusion port and warping of the plate surface, so as to improve heating controllability, Effect of avoiding residual stress and improving quality

Pending Publication Date: 2022-06-24
河南惠强新能源材料科技股份有限公司
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Problems solved by technology

[0004] In order to overcome the problem in the prior art that the two ends of the extrusion port are prone to uneven cooling due to the elongated structure of the extrusion port, resulting in the bending of the plate surface in the later stage, the present invention provides a casting extrusion device for battery diaphragm production

Method used

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  • Casting extrusion device for battery diaphragm production
  • Casting extrusion device for battery diaphragm production
  • Casting extrusion device for battery diaphragm production

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Embodiment 1

[0028] refer to Figure 1-5 , a casting extrusion device for battery diaphragm production, including a base 1 with a cavity inside, which is convenient for installing electrical components inside the base 1, the upper surface of the base 1 is set into a stepped structure, and the upper surface of the base 1 is relatively A support frame is fixed on the lower platform, the top of the support frame is fixed with an extrusion box 13 by bolts, and a hole is opened in the middle of one side of the extrusion box 13 close to the higher platform of the base 1, and the socket is slidably connected with a pusher. A pusher 24 is fixed on the upper surface of the base 1 close to the end of the pusher tube, and a pusher plate 14 is fixed at one end of the pusher tube away from the pusher device 24, and a rectangular hole is opened in the middle of one end of the extrusion box 13 away from the pusher device 24, And a discharge pipe 8 is inserted into the rectangular hole, the outer wall of ...

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Abstract

The invention belongs to the technical field of battery diaphragm production, particularly relates to a casting extrusion device for battery diaphragm production, and aims to solve the problem that in the prior art, due to the fact that an extrusion opening is of a long-strip-shaped structure, the two ends of the extrusion opening are prone to uneven cooling, and plate surface buckling is caused in the later period. Electrical elements can be conveniently installed in the base, the upper surface of the base is arranged to be of a step-shaped structure, a supporting frame is fixed to a lower platform on the upper surface of the base, an extrusion box is fixed to the top end of the supporting frame through bolts, and an insertion hole is formed in the middle of the side, close to the higher platform of the base, of the extrusion box. A propelling pipe is slidably connected into the inserting hole, and a propelling device is fixed to the end, close to the propelling pipe, of the upper surface of the base. According to the invention, the fluid near the extrusion opening can be softened, so that the frictional resistance generated between the fluid and the pipe orifice is reduced, and the flow velocity near the outlet tends to be consistent, so that residual stress of the extruded diaphragm body is avoided, and the quality of the extrudate is improved.

Description

technical field [0001] The invention relates to the technical field of battery diaphragm production, in particular to a casting extrusion device for battery diaphragm production. Background technique [0002] Lithium batteries are considered to be the most potential energy storage devices due to their high energy density and safe and reliable rapid charge and discharge, and are widely used in 3C electronic products, electric vehicles, hybrid vehicles, etc. However, there are also potential dangers in the application of lithium batteries. The frequent combustion and explosion accidents of lithium batteries have brought huge threats to people's lives and property safety. Lithium batteries are composed of a positive electrode, a negative electrode, a separator and an electrolyte. Under the premise that the positive and negative electrode materials have not been greatly improved, the separator has been widely studied as a key material affecting the performance of the battery. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C41/24B29C41/34B29C41/46H01M50/403
CPCB29C41/24B29C41/34B29C41/46
Inventor 王红兵徐明边红兵杨招刘显军周振新
Owner 河南惠强新能源材料科技股份有限公司
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