Battery of compensating anode-cathode capacity ratio

A capacity ratio, storage battery technology, applied in airtight storage batteries, alkaline battery electrodes, non-aqueous electrolyte storage batteries, etc., can solve the problems of reduced battery performance, battery safety deterioration, etc.

Inactive Publication Date: 2004-08-04
SAMSUNG ELECTRONICS DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In this way, when the prismatic storage battery is charged and discharged, metal lithium is easily precipitated in the part where the anode-to-cathode capacity ratio is less than 1, which will reduce the performance of the battery, especially when it will become a high-efficiency charge and discharge, and the safety of the battery will be drastically reduced. Cause of deterioration

Method used

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  • Battery of compensating anode-cathode capacity ratio
  • Battery of compensating anode-cathode capacity ratio
  • Battery of compensating anode-cathode capacity ratio

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Embodiment Construction

[0034] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0035] Hereinafter, the preferred embodiments applicable to the present invention will be described in detail according to the accompanying drawings. In the description of the present invention, for the sake of easy understanding, the same symbols are used for the inventions that are the same as those in the drawings cited in the prior art.

[0036] figure 1 The overall structure of the square storage battery related to the present invention is shown.

[0037]The structure of the square battery is: the anode, the diaphragm and the cathode are wound together to form an electrode core 2, which is inserted into the inside of the casing 4 connected to the cathode, and the cap assembly 6 is installed on the upper part of the casing 4, and sealed by welding . On the upper and lower sides of the electrode winding core 2, in order to prevent the cap assembly 6 from conta...

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Abstract

A roll electrode assembly used in a secondary battery includes a positive electrode applied with a positive active material, a negative electrode applied with a negative active material, and a separator disposed between said positive and negative electrodes. A thickness of the positive or negative active materials applied on opposite sides of positive or negative substrates of the positive or negative electrodes are different from each other such that the capacity ratio between the positive and negative electrodes can be maintained above 1.

Description

technical field [0001] The present invention relates to a battery that compensates for the capacity ratio of the anode and the cathode, and more particularly, to a battery that adjusts the ratio of the cathode active material to the anode active material to optimize the battery performance of the battery, enabling Ensure the safety of the battery. Background technique [0002] The storage battery is made by winding the anode and cathode sheets (substrate) coated with active materials and the diaphragm together and inserting them into the casing, and then injecting the electrolytic substance into the casing, utilizing the gap between the electrolyte and the active substance when the current is applied. A battery that produces an electrochemical reaction. This kind of storage battery is different from the original primary battery that can only be used once. The energy consumed by the product can be recharged with a charger to restore it for repeated use. It is developing rapi...

Claims

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Application Information

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IPC IPC(8): H01M4/13H01M4/24H01M10/00H01M10/04H01M10/05H01M10/0587H01M10/34H01M10/42
CPCY02E60/124H01M10/0587H01M2010/4292Y02E60/122H01M10/0431H01M10/0525H01M2004/021Y02E60/12Y02E60/10Y02P70/50H01M10/42
Inventor 金昌燮
Owner SAMSUNG ELECTRONICS DEVICES CO LTD
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