Unlock instant, AI-driven research and patent intelligence for your innovation.

Battery can and battery

A technology of battery cans and battery covers, applied to batteries. It can solve the problems of sputtering and foreign metal intrusion into the main body of the battery can, and achieve the effect of avoiding component accuracy, preventing unqualified, and stabilizing welding strength.

Inactive Publication Date: 2018-02-09
FUJI SPRINGS CO
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relatively speaking, in the circumferential range where the low-position surface exists, the gap between the lower surface of the battery cover and the low-position surface is relatively large into the main body of the battery can, and it is easier to allow metal foreign matter to invade the main body of the battery can and spatter. The problem of flying into the main body of the battery can

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery can and battery
  • Battery can and battery
  • Battery can and battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The following is based on Figure 1 to Figure 5 , the first embodiment as an example of the battery can and the battery according to the present invention will be described.

[0028] Such as figure 2 , image 3 As shown in FIG. 2 , this battery is a rectangular sealed battery, and includes a metal battery can whose outer shape is a rectangular parallelepiped.

[0029] This battery can is composed of a battery can main body 10 formed in a square cylindrical shape with a bottom, and a battery cover 20 joined to the battery can main body 10 .

[0030] The battery cover 20 is inserted into the inside of the square tube-shaped side wall formed on the battery can main body 10 from above with respect to the battery can main body 10 . In this battery, the side wall of the battery can main body 10 and the peripheral edge of the battery cover 20 inserted therein are airtightly welded over the entire circumference. In addition, in the present invention, the up-down direction ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a battery can and a battery. The battery can optimize insertion guidance of a battery cover into a square battery can body and can prevent the intrusion of metal foreign materials into the battery can body during the insertion, scattering of spattering materials into the battery can body during welding, and irradiation of a power generation member with a light beam. At leastone of a pair of short-side wall parts (12) and four corner parts (13) of the battery can body (10) forms a step part (15) that reaches below the battery lid. At a part other than the step part, a low surface part (14) that reaches below the battery lid is formed at a position lower than the step part in an up-down direction. The battery lid has a bottom-surface-side corner part (24) that are arranged downward from the periphery and a bottom-surface engagement part (25) opposed to the step part of the battery can body in the up-down direction. The bottom-surface-side corner part of the battery lid is formed so as to be in contact with or opposite to the low surface part in a position lower than the bottom-surface engagement part in the up-down direction.

Description

technical field [0001] The present invention relates to a battery can constructed by welding a rectangular battery can main body and a battery cover, and a battery including the battery can. Background technique [0002] In recent years, battery-driven hybrid vehicles, electric vehicles, portable computers, and electric tools are increasing. Lithium-ion secondary batteries are representative of such batteries, and as the form of the batteries, prismatic batteries provided with a metal rectangular parallelepiped battery can as a battery can for accommodating a power generating member are widely used. The battery can is composed of a bottomed square cylindrical battery can main body and a battery cover joined to the side wall of the battery can main body. The side wall of the battery can main body and the periphery of the battery cover are welded over the entire circumference. [0003] In such a battery can, a welding method of irradiating an energy beam from above is employ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/04H01M2/02H01M50/103H01M50/147H01M50/169H01M50/591
CPCH01M50/103H01M50/169H01M50/147H01M50/591Y02E60/10
Inventor 藤井启小田垣敏弘
Owner FUJI SPRINGS CO