Battery shell and lithium battery

A battery shell and lithium battery technology, which is applied in the direction of lithium batteries, battery pack components, non-aqueous electrolyte batteries, etc., can solve the problem of incompatibility between battery capacity and battery volume, and achieve long-term battery life and large battery capacity , small size effect

Pending Publication Date: 2020-07-24
GUANGZHOU GREAT POWER ENERGY & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide a battery casing to alleviate the technical problem in the prior art that the battery capacity and the battery volume cannot be balanced due to the influence of the structure of the battery casing

Method used

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  • Battery shell and lithium battery
  • Battery shell and lithium battery
  • Battery shell and lithium battery

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Embodiment

[0037] In the lithium battery industry, most steel shells are used as the shell of the battery cell. The steel shell includes an upper cover and a lower cover. The battery cell can be placed in the lower cover, and then the upper cover is fastened relative to the lower cover to realize the closure of the upper cover and the lower cover. . However, when the upper cover is buckled relative to the lower cover, not only the positioning of the upper cover and the lower cover needs to be aligned, but also the pressing force when the two are buckled will cause the internal battery cells to be compressed, thereby causing an internal short circuit or The battery core is worn out. If a large-capacity battery is used, the volume of the battery will increase, and the pressure on the battery will be more obvious. In order to avoid pressure on the battery cells, a part of spare space is reserved in both the upper cover and the lower cover, so that when the upper cover and the lower cover a...

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Abstract

The invention provides a battery shell and a lithium battery, and relates to the technical field of batteries. The battery shell comprises a first shell and a second shell; the first shell and the second shell are oppositely arranged, the first shell is provided with a concave part, and the concave part is used for accommodating a battery cell; the second shell is provided with a first plane part,and the first plane part is used for covering an opening of the concave part; an edge sealing part is arranged between the first shell and the second shell, is arranged in a circumferential directionof the concave part, can cover an outer side of the concave part and is provided with at least one notch; and the lithium battery comprises a battery cell and the battery shell, and the battery cellis arranged in the battery shell. According to the battery shell and the lithium battery provided by the invention, a technical problem that a battery capacity and a battery volume cannot be considered at the same time due to an influence of the battery shell structure in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery casing and a lithium battery. Background technique [0002] In recent years, lithium batteries have been increasingly used in portable electronic devices such as hearing aids, Bluetooth headsets, electric toys, and cameras. As the functions of electronic devices improve, their power consumption has also increased. In order to achieve the long-term battery life of lithium batteries, portable electronic devices put forward higher capacity requirements for battery casings, that is, large-capacity batteries are required. However, in the traditional technology, most lithium batteries use a steel case as the cell casing, which is closed by interlocking the upper and lower covers. However, the interlocking of the upper and lower covers may easily cause the cells in the battery casing to be compressed, especially when large-volume cells are used, the compression of the cells...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/052H01M50/20H01M50/247
CPCH01M10/052H01M50/20Y02E60/10
Inventor 陈家辉周彬薛建军
Owner GUANGZHOU GREAT POWER ENERGY & TECH CO LTD
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