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Rechargeable battery and its fabrication

A recharging and battery technology, applied in secondary battery manufacturing, sustainable manufacturing/processing, battery pack components, etc., can solve problems such as short circuit of battery modules, performance degradation of unit cells, and failure to work normally

Active Publication Date: 2006-09-27
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Here, the battery module may be short-circuited when conductors pass through the middle cell isolation plate to electrically connect the boxes adjacent to each other.
Also, when the unit cell has a problem of electrolyte leakage, which may electrically connect adjacent unit cells, the unit cells cannot function normally.
[0015] In addition, when the case body electrically connected to the electrode assembly at its inner surface is not connected to the terminal of the adjacent unit cell but is connected to other parts, for example, to the case body, a Another leakage problem that causes the performance of the unit cells to degrade

Method used

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  • Rechargeable battery and its fabrication
  • Rechargeable battery and its fabrication
  • Rechargeable battery and its fabrication

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Embodiment Construction

[0029] figure 1 is an exploded perspective view of a rechargeable battery 30 according to the present invention, and figure 2 for along figure 1 A cross-sectional view of the rechargeable battery 30 taken along line A-A.

[0030] Referring to the drawings, each unit cell 30 of a battery module having a high capacity includes an electrode assembly 25 including a positive electrode 11 and a negative electrode 12 and a separator 13 placed therebetween; The space of the electrode assembly 25 and an insulating layer 144 on the surface of the main body 141 of the box body 14; the cover plate 33, which is connected with the box body 14 to close and seal the box body 14, and respectively electrically A positive terminal 31 and a negative terminal 32 are connected to the positive electrode 11 and the negative electrode 12 and protrude outward from the cap plate 33 .

[0031] The manufacturing steps of the unit cell 30 include: forming the electrode assembly 25 by stacking the separ...

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Abstract

A rechargeable battery includes an electrode assembly having positive and negative electrodes and a separator interposed therebetween and a case housing the electrode assembly and having an insulating layer arranged on its surface to insulate the case and prevent short-circuits and electrical leakage.

Description

technical field [0001] The present invention relates to a rechargeable battery and its manufacturing method. More particularly, the present invention relates to a rechargeable battery including a battery case having an improved structure and a method of manufacturing the same. Background technique [0002] Rechargeable batteries are generally distinguished from primary batteries in that they can be charged and discharged repeatedly. Rechargeable batteries having a low capacity include single cells, which are used in small portable electronic devices such as mobile phones, notebook computers, and camcorders. On the other hand, a rechargeable battery having a high capacity includes a plurality of unit cells as a package and is generally used as a power source for driving a motor or the like of a hybrid electric vehicle. [0003] The rechargeable battery is mainly formed in a cylindrical or polygonal prism shape. [0004] Also, the rechargeable batteries are connected in ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M2/00H01M2/02H01M50/117H01M50/119H01M50/121H01M50/128H01M50/133
CPCH01M2/029H01M2/0277H01M2/0272H01M2/0262H01M2/0287H01M2/0275H01M2/0285Y02E60/10H01M50/1243H01M50/124Y02P70/50H01M50/133H01M50/121H01M50/117H01M50/128H01M50/119H05B3/347H05B2203/036
Inventor 金泰容金载炅崔水石
Owner SAMSUNG SDI CO LTD