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Secondary battery

A technology for secondary batteries and electrode plates, which is used in secondary batteries, secondary battery manufacturing, battery electrodes, etc., and can solve problems such as short-circuit defects, non-discharge areas, and electrode assembly alignment and distortion.

Inactive Publication Date: 2011-06-15
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the lithium secondary battery, the gas-generating reaction in the manufacturing process of the lithium secondary battery is likely to cause the swelling phenomenon, especially, the reaction may occur during electrolyte injection or charging / discharging
As a result of swelling, the alignment of the electrode assembly is distorted, short-circuit defects may occur, or non-discharge areas may be created
[0006] In addition, in the manufacture of lithium secondary batteries, in the process of notching or cutting the positive electrode plate and the negative electrode plate, in the process of installing electrode joints, etc., it is easy to generate dust of the active material.
Therefore, short-circuit defects occur

Method used

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Embodiment Construction

[0020] In the following detailed description, certain exemplary embodiments are illustrated and described, by way of illustration only. As those skilled in the art would realize, the described embodiments may be modified in various ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature, and not restrictive. Also, when an element is referred to as being on another element, it can be directly on the other element or be indirectly on the another element with one or more intervening elements interposed therebetween. Also, when an element is referred to as being connected to another element, it can be directly connected to the other element or be indirectly connected to the another element with one or more intervening elements interposed therebetween. In the following, the same reference numerals generally refer to the same elements.

[0021] figure 1 is an exp...

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Abstract

A secondary battery is disclosed. The secondary battery includes an adhesive configured to attach to the electrode plates so as to strengthen the battery against separation, to reduce production of dust, and to protect the battery from dust.

Description

technical field [0001] The technical field relates to secondary batteries, and more particularly, to secondary batteries capable of preventing separation of active materials and increasing adhesion between electrode plates and separators. Background technique [0002] With rapid progress in miniaturization and weight reduction of portable electronic devices, much research has been conducted to develop secondary batteries used as power sources of portable electronic devices. Such a secondary battery may be, for example, a nickel-cadmium battery, a nickel-hydrogen battery, a nickel-zinc battery, a lithium secondary battery, or the like. [0003] Lithium secondary batteries are rechargeable, compact, and have high capacity, and thus are widely used in high-tech electronic devices because of their high operating voltage and high energy density per unit weight. [0004] Such a lithium secondary battery is manufactured by inserting an electrode assembly together with an electroly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/02H01M4/62H01M10/00H01M4/13H01M10/04H01M10/052H01M10/0569H01M10/058H01M10/0585H01M10/0587
CPCH01M2/00H01M10/0565H01M10/0436Y02E60/122H01M4/622H01M10/052H01M2/168Y02E60/12Y02E60/10Y02P70/50H01M50/20H01M50/183H01M50/461
Inventor 赵慈卿金大奎安昶范
Owner SAMSUNG SDI CO LTD