Lithium-dynamic battery capable of avoiding gas inflation

A power battery and battery technology, which is applied to secondary batteries, battery components, circuits, etc., can solve the problems of increased battery thickness and damage to power battery structural parts, and achieve the goals of preventing explosions, improving safety, and having a long service life Effect

Inactive Publication Date: 2011-04-06
BAK INT TIANJIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lithium-ion batteries have the characteristics of high voltage, long cycle life, stable discharge voltage, and clean and pollution-free, but lithium-ion batteries often swell, resulting in a large increase in battery thickness
This increase in thickness can damage the structural parts of the power battery

Method used

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  • Lithium-dynamic battery capable of avoiding gas inflation
  • Lithium-dynamic battery capable of avoiding gas inflation
  • Lithium-dynamic battery capable of avoiding gas inflation

Examples

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Embodiment Construction

[0026] Hereinafter, the present invention will be further described in detail through specific embodiments in conjunction with the drawings.

[0027] In the present invention, when the single cells are inflated, the gas in the single cells will enter the cavity of the shell through the micro holes on each single cell. When the gas pressure in the cavity of the housing increases to a preset threshold, the one-way exhaust valve opens and releases to the atmosphere, and the gas in the cavity decreases, thereby avoiding bloating.

[0028] Such as Figure 1 to Figure 3 As shown, the lithium power battery capable of avoiding bloating in this example includes a housing 11 with a cavity, at least two single cells 12 and tabs 13 provided on the single cells 12. The single cell 12 is provided with a micro-hole 17, which is connected to the inside of the single cell 12, so that the gas generated by the single cell 12 can be discharged from the single cell 12 through the micro-hole 17, withou...

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Abstract

The invention discloses a lithium-dynamic battery capable of avoiding gas inflation, comprising an outer shell and at least two single battery cells, wherein the outer shell is provided with a hollow cavity, and the single battery cells are packaged in the hollow cavity of the outer shell and provided with micropores communicated with the inner parts of the single battery cells. In the invention, the single battery cells are provided with the micropores communicated with the inner parts of the single battery cells, the micropores can expel gas generated when the single battery cells are in gas inflation from the single battery cells, the gas inflation of the single battery cells is avoided, therefore the problem that the thickness of the battery is increased due to the gas inflation of the single battery cells is avoided, and the safety of the lithium-dynamic battery is improved.

Description

Technical field [0001] The invention relates to a battery, in particular to a lithium power battery capable of avoiding bloating. Background technique [0002] The new lithium power battery is a brand-new green energy with broad application prospects. At present, lithium power batteries are mainly divided into cylindrical batteries (such as 18650 / 26650, etc.) and square batteries from the appearance. Rectangular lithium power batteries are generally packaged in the battery shell after series or parallel connection of single cells according to the designed capacity or voltage. Lithium-ion batteries have the characteristics of high voltage, long cycle life, stable discharge voltage, and clean and pollution-free. However, lithium-ion batteries often swell, resulting in a large increase in battery thickness. This increase in thickness will damage the structural parts of the power battery. [0003] Therefore, it is necessary to further improve the lithium power battery. Summary of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/36H01M10/40H01M2/02H01M2/12H01M2/00H01M50/102H01M50/30
CPCY02E60/122H01M2/1264H01M10/0525H01M2/12Y02E60/10H01M50/30H01M50/394
Inventor 毛焕宇
Owner BAK INT TIANJIN
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