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End cap structure of rectangular cell

A technology of square battery and end cover plate, applied in the direction of structural parts, battery pack components, circuits, etc., can solve the problem of no protection ability of the battery

Inactive Publication Date: 2007-09-26
E ONE MOLI ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the safety valve design has no protection against battery deformation

Method used

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  • End cap structure of rectangular cell
  • End cap structure of rectangular cell
  • End cap structure of rectangular cell

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Embodiment Construction

[0029] The invention discloses an end cover structure of a square battery, which can improve the safety of the battery. In order to make the description of the present invention more detailed and complete, reference may be made to the following description and shown in FIG. 1 to FIG. 4 .

[0030] Please refer to FIG. 1 , which shows a top view of an end cap structure of a prismatic battery according to a preferred embodiment of the present invention. The end cover plate structure 100 of this square battery at least includes a square plate 102 and a rivet head 112, wherein the rivet head 112 is located on the surface 104 of the square plate 102, and the rivet head 112 and the square plate 102 belong to electrodes with different electrical properties, respectively. Carries charges of different electrical properties. In a preferred embodiment of the present invention, the square battery can be, for example, a lithium ion battery, the material of the square plate 102 can be, for ...

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Abstract

This invention discloses one rectangle battery end cover board structure which comprises one rectangle plate and one bolt nail head, wherein, The plate has one first surface and second surface of plane; The nail head is on first surface to divide the first surface into first plane area and second plane area with height of first plane area lower than second one near to the above nail head.

Description

technical field [0001] The invention relates to an end cover structure of a square battery, in particular to an end cover structure of a square lithium ion battery. Background technique [0002] With the development of portable electronic products towards lightness, thinness, shortness and smallness, as well as the increasing requirements for the available time of one charge of portable electronic products, secondary batteries with small size, light weight and high energy density have become portable One of the indispensable components of electronic products. [0003] Among secondary batteries, lithium-ion batteries have the advantages of high operating voltage, high energy density, light weight, and long life, and can meet the needs of light and small portable electronic products. Therefore, lithium-ion batteries have been widely used in portable electronic products, such as notebook computers (Notebook), personal digital assistants (Personal Digital Assistant; PDA), and m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/04H01M50/15H01M50/578
CPCY02E60/12Y02E60/10
Inventor 王进龙蔡瑞民邱宏明
Owner E ONE MOLI ENERGY CORP
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