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Rechargeable battery

A technology of recharging and battery, applied in the direction of battery, secondary battery charging/discharging, secondary battery, etc., can solve problems such as reduction of inherent resistance

Inactive Publication Date: 2014-06-04
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In doing so, the security device may have a high penetration resistance to current flowing in the thickness direction, but the inherent resistance to current flowing in the plane direction of the security device may be reduced too much

Method used

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Examples

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Embodiment Construction

[0041] Hereinafter, the present invention will be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. 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. The drawings and detailed description are to be regarded as illustrative in nature and not restrictive. In the context of this application, when a first element is referred to as being "on" a second element, it can be directly on the second element or be indirectly on the second element with one or more intervening elements interposed therebetween. between. Like reference numerals refer to like elements throughout the specification.

[0042] figure 1 A perspective view illustrating a rechargeable battery according to a first exemplary embodiment of the present invention is shown, figure 2 Show example along figure 1 A...

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Abstract

A rechargeable battery for preventing a safety device from being melted when a conductor penetrates is provided. The rechargeable battery includes an electrode assembly having a first electrode and a second electrode at both sides of a separator, a case housing the electrode assembly, a cap plate coupled to an opening of the case, a first electrode terminal and second electrode terminal that are installed in a terminal hole of the cap plate to be connected to the first electrode and the second electrode, respectively, and a safety device that is disposed between the electrode assembly and the case. The cap plate is electrically connected to one of the first electrode and the second electrode, and the safety device is electrically connected to the another of the first electrode and the second electrode. The safety device includes a plate portion and a protruded portion that protrudes from at least one surface of the plate portion.

Description

technical field [0001] The present disclosure relates to a rechargeable battery having a safety device for a penetration feature of a conductor. Background technique [0002] Unlike primary batteries, rechargeable batteries can repeatedly perform charging and discharging. Rechargeable batteries with a low capacity are generally used for small portable electronic devices such as mobile phones, laptops or camcorders, while rechargeable batteries with a large capacity are generally used, for example, to drive A power source for a motor of a hybrid vehicle. [0003] A rechargeable battery includes an electrode assembly (having a positive electrode and a negative electrode at both surfaces of a separator), a case accommodating the electrode assembly, a cap plate closing and sealing the opening of the case, and a battery provided between the case and the electrode assembly. room safety device. [0004] The cap plate and the case are electrically connected to the positive electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/34H01M2/20H01M50/119H01M50/574H01M50/586
CPCH01M10/0413H01M10/0431H01M2/26H01M2/0277H01M10/0436H01M2/34H01M2/0287H01M2200/00H01M10/44H01M50/124H01M50/586H01M50/119H01M50/574Y02E60/10Y02P70/50H01M10/4235H01M50/531H01M50/572H01M50/102H01M50/578
Inventor 文钟硕李仁铉南熙相
Owner SAMSUNG SDI CO LTD