Lithium battery

A technology of lithium batteries and battery cells, which is applied in the direction of lithium batteries, battery pack components, non-aqueous electrolyte batteries, etc. It can solve the problems that the safety valve is not easy to open, and the explosion-proof effect cannot be achieved, so as to achieve timely pressure relief and easy processing , the effect of high sensitivity

Inactive Publication Date: 2012-04-18
SUZHOU GOLDEN CROWN NEW ENERGY +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Although the existing lithium battery has a safety valve design, such as the Chinese No. CN2805102 patent discloses a lithium battery with a safety valve, the scheme disclosed in this patent is to draw a 45-degree groove at a corner on one side of the battery case As a safety valve, but the safety valve described in this plan is not easy to open in practical applications, and cannot achieve the proper explosion-proof effect

Method used

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] ginseng figure 1 , figure 2 As shown, the lithium battery 100 of the present invention includes: a battery case 10 , a battery cell assembly 20 accommodated in the battery case 10 , a battery output terminal 30 , a battery cell cover 40 and an electrolyte.

[0020] ginseng Figure 3(a) , Figure 3(b) As shown, the battery case 10 has a bottom surface 11, a sealing opening 16, and a first side 12, a second side 13, a third side 14, and a fourth side 15 extending upward perpendicular to the bottom 11. The first The side 12 is parallel to the second side 13 , the third side 14 is parallel to the fourth side 15 , and the first side 12 is perpendicular to the third side 14 . The bottom surface 11 is surrounded by the first side 12 , the sec...

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Abstract

The invention provides a lithium battery which comprises a battery core component, a battery shell, electrolyte and a battery core cover, wherein the battery core component comprises a positive electrode, a negative electrode, an isolating membrane and other materials; the battery shell is provided with a bottom surface and a plurality of side surfaces which are vertical to the bottom surface and are extended upwards; the battery shell is provided with a containing space and a sealing port, wherein the containing space is formed by the bottom surface and a plurality of side surfaces in a surrounding manner; the battery core component is contained in the containing space; the electrolyte is filled between the battery core component and the battery shell; the battery core cover is used for sealing the battery core component and the electrolyte in the battery shell; the battery shell is provided with at least one safety valve; the at least one safety valve is arranged on one side surface of the battery shell and is close to an intersection part of the two adjacent side surfaces; and the distance between the safety valve and the sealing port or the distance between the safety valve and the bottom surface is less than one quarter of the distance between the sealing port and the bottom surface. Compared with the safety valve of the prior art, the safety valve of the lithium battery has the advantages of simple and convenient processing, low cost, high sensitivity, timely pressure-relief and the like, thereby the safety of the lithium battery is increased.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a lithium battery. Background technique [0002] With the development of mobile devices and increasing demand for mobile devices, the demand for batteries as energy sources for mobile devices has also increased sharply, among which are lithium batteries. Lithium batteries are favored by people because of their high energy ratio, long service life, high rated voltage, high power tolerance, low self-discharge rate, light weight, and high temperature adaptability. [0003] Although the existing lithium battery has a safety valve design, such as the Chinese No. CN2805102 patent discloses a lithium battery with a safety valve, the scheme disclosed in this patent is to draw a 45-degree groove at a corner on one side of the battery case As a safety valve, the safety valve described in this proposal is not easy to open in practical applications, and cannot achieve the desired explosion-proof ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12H01M2/02H01M10/052
CPCY02E60/122Y02E60/10
Inventor 黄仁治宋华斌
Owner SUZHOU GOLDEN CROWN NEW ENERGY
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