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Reverse impact extrusion apparatus and method for manufacturing rechargeable battery casings

A battery case, impact extrusion technology, applied in the direction of manufacturing tools, battery pack parts, metal extrusion dies, etc., can solve the problems of high production cost, long processing time, etc., to reduce the failure rate, uniform tensile stress , the effect of stable manufacturing

Active Publication Date: 2019-06-11
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Metal housings are traditionally formed by a deep drawing process, which involves multiple drawing processes, resulting in high production costs and long processing times

Method used

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  • Reverse impact extrusion apparatus and method for manufacturing rechargeable battery casings
  • Reverse impact extrusion apparatus and method for manufacturing rechargeable battery casings
  • Reverse impact extrusion apparatus and method for manufacturing rechargeable battery casings

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Embodiment Construction

[0029] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

[0030] As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

[0031] Throughout the specification and drawings, like reference numerals refer to like elements.

[0032] figure 1 is an exploded perspective view of a reverse impact extrusion device according to a first exemplary embodiment of the present invention, figure 2 is a front view of the reverse impact extrusion device according to the first exemplary embodiment of the present invention.

[0033] refer to figure 1 with figure 2 , the reverse impact extrusion device according to the first exemplary embodiment of the present invention includes a punch 20 having a mold clamping portion 21 protruding outward from ea...

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Abstract

The invention discloses a reverse impact extrusion device and a manufacturing method for manufacturing rechargeable battery shells. A reverse impact pressing device according to an exemplary embodiment of the present invention includes a punch having a die-clamping portion protruding outward from each bottom side, and a die formed with a groove into which a tray is inserted. The walls are formed such that their central portion is higher than their side ends.

Description

technical field [0001] The described technology generally relates to a reverse impact extrusion device for manufacturing rechargeable battery housings and a manufacturing method using the same. Background technique [0002] A rechargeable battery differs from a primary battery in that it can be repeatedly charged and discharged, whereas the latter cannot be recharged. [0003] Low-capacity rechargeable batteries are used in small portable electronic devices such as mobile phones, notebook computers, and camcorders, while high-capacity rechargeable batteries can be widely used as power sources for driving electric motors of hybrid vehicles and the like. [0004] In addition, a high-capacity battery module generally includes a plurality of rechargeable batteries connected in series, and the rechargeable batteries may be formed in a cylindrical or prismatic shape. [0005] Such rechargeable batteries typically have a cylindrical or prismatic metal case. [0006] Traditionally...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/02B21D37/10H01M50/103H01M50/209H01M50/244H01M50/249
CPCB21D37/10H01M50/10Y02E60/10B21C23/186B21C25/02B21C23/20
Inventor 郑德镇张荣振
Owner SAMSUNG SDI CO LTD
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