Battery cell, electronic equipment and battery cell package method

Abstract

The invention discloses a battery cell, electronic equipment and a battery cell package method. The battery cell comprises a shell and a battery core, wherein the shell comprises a steel lower shell and a steel upper shell, insulation layers are arranged on surfaces of the upper shell and the lower shell, the lower shell and the upper shell are hermetically connected by welding to form a sealing cavity, a positive contact sheet and a negative contact sheet are arranged on the shell, the battery core is a laminated battery core, the laminated battery core is fixed in the sealing cavity, and a positive tab and a negative tab of the lamination battery core are respectively connected with the positive contact sheet and the negative contact sheet. The battery cell can be applied to the field ofthe electronic equipment; by matching of the steel shells and the lamination battery core, the battery core can be in various shapes and various sizes, various complicated installation spaces of theelectronic equipment can be adapted, so that maximum capacity of the battery cell is achieved; and the battery cell is high in strength of integral structure and is difficult to deform and get failure, and the battery cell is safe and reliable to use and can be repeatedly used after disassembly.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to an electric core, electronic equipment including the electric core and a packaging method for the electric core. Background technique [0002] Mobile phones have become an indispensable electronic product in people's lives. With the development of mobile phones, mobile phone batteries have also experienced several development stages. [0003] The first stage is the aluminum shell cell. The shell is a square shape made of aluminum by stamping, and the core is formed by rolling the core. The disadvantage is: because the shell is formed by stamping from aluminum, affected by the amount of deformation and material of the aluminum, the size cannot be made large enough, especially in the length direction, which causes the size of the battery cell to be limited, and the capacity of the battery cell cannot be made enough Big. [0004] The second stage is the soft package battery, wh...

AI Technical Summary

Problems solved by technology

The disadvantage is: because the shell is formed by stamping from aluminum, affected by the amount of deformation and material of the aluminum, the size cannot be made large enough, especially in the length direction, which causes the size of the battery cell to be limited, and the capacity of the battery cell cannot be made enough Big

The soft-pack battery is mainly a rectangular structure. The advantage is that the capacity of the battery can be made large enough and the size can be relatively large; the disadvantage is that the aluminum-plastic film on the outside of the battery is easy to deform when the whole machine is dropped, which in turn causes The winding core inside is deformed and causes the failure of the battery core, which may cause a safety accident; another disadvantage is that this kind of battery is usually pasted in the battery compartment with strong double-sided tape. If the battery needs to be replaced, the removed battery will be Relatively soft, the battery is easily deformed during the disassembly process, and the inside of the battery cell will also be deformed, resulting in a safety hazard inside the battery cell, so it cannot be used again, causing a lot of waste

The advantage is: the capacity of the battery cell can be made large enough, and the space of the appearance of the equipment can be fully utilized, and the size can be relatively large; the disadvantage is: the same as the second type of battery cell, one is that the battery cell is easily deformed and fails when it is dropped , one is that the battery is easily deformed when disassembled and cannot be used again

[0006] How to change the limited capacity and size of the aluminum shell battery, the failure of the pouch battery to drop, and the secondary use of the pouch battery are problems that need to be solved urgently.

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