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Battery with current automatic cut-off device

An automatic cut-off and battery technology, applied in secondary batteries, exhaust plug devices, battery pack components, etc., can solve the problems of increased safety hazards, easy welding, and inability to resist battery vibration.

Pending Publication Date: 2018-08-21
SUZHOU JUTIANHE METAL TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the process of using this technical solution, since the automatic current cut-off device is inside the battery, and there is no connection between the top cover and the aluminum cover plate, the top cover is prone to movement, resulting in drift of the internal resistance of the battery, and the battery cannot resist vibration. , It is easy to open the welding during the vibration of the battery, and it has never been unable to achieve effective safety protection
In addition, since the current automatic cut-off device is inside the battery, when the battery is abnormal, it is easy to contact the internal chemical solution and cause dangerous accidents such as explosion
Increase the possibility of battery explosion, but further increase the potential safety hazard

Method used

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  • Battery with current automatic cut-off device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The invention provides a battery equipped with an automatic current cut-off device, the battery at least includes a vent hole, the vent hole also includes a sealing rubber ring, and the battery also includes:

[0064] The battery body, the stress structure, the power-off structure and the lever structure; the stress structure, the power-off structure and the lever structure are located in a casing above the location of the exhaust hole of the battery body;

[0065] One end of the power-off structure is connected to the terminal board through an elastic component, and the elastic component has conductivity;

[0066] The middle part of the power-off structure includes a circular concave structure;

[0067] The stress structure is connected to the lever structure; the bottom surface of the stress structure is in contact with the exhaust hole; the part where the bottom surface of the power-off structure is in contact with the stress structure includes at least one elastic s...

Embodiment 2

[0087] The invention provides a battery equipped with an automatic current cut-off device, the battery comprising:

[0088] The battery includes at least one vent hole, the vent hole also includes a sealing rubber ring, and the battery also includes:

[0089] A battery body, a stress structure, a power-off structure, and a lever structure; the stress structure, the power-off structure, and the lever structure are located in a housing above the location of the exhaust hole of the battery body;

[0090] The stress structure is connected to the lever structure; the bottom surface of the stress structure is in contact with the vent hole; the outer diameter of the stress structure is smaller than the inner diameter of the circular hole where the vent hole is located;

[0091] One end of the power-off structure is connected to the terminal board through an elastic component, the elastic component has conductivity, the power-off structure includes a connecting substructure; the elast...

Embodiment 3

[0117] The invention provides a battery equipped with an automatic current cut-off device, referring to figure 1 As shown, the battery includes:

[0118] The battery includes at least one vent hole 15, and the vent hole 15 also includes a sealing rubber ring, and the battery also includes:

[0119]The battery body 11, the stress structure 12, the power-off structure 13, and the lever structure 14; the stress structure 12, the power-off structure 13, and the lever structure 14 are located in a casing above the location of the exhaust hole 15 of the battery body 11; the The connection method between the casing and the battery includes but is not limited to: in order to facilitate replacement or maintenance, the casing may also include a detachable connection part, which is detachably connected to the battery; at the same time, the detachable connection part may also include an adapter The adjustment device is convenient for matching batteries of various types and specifications...

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Abstract

The invention provides a battery with a current automatic cut-off device and belongs to the field of batteries. The battery comprises a battery body, a stress structure, a power-off structure and a lever structure; the stress structure, the power-off structure and the lever structure are positioned in a shell above the position of a vent hole of the battery body; the stress structure is connectedwith the lever structure; the bottom surface of the stress structure is contacted with the vent hole; the outer diameter of the stress structure is less than the inner diameter of a round hole where the vent hole is; one end of the power-off structure is movably connected with a terminal plate; and the power-off structure comprises a connector substructure. The current automatic cut-off device isarranged at the outer part of the battery, so that internal resistance drift of the battery is avoided, the battery is liable to unweld in the battery vibration process and effective safety protectionis achieved. In addition, the current automatic cut-off device is arranged at the outer part of the battery, so the dangerous accident that explosion occurs when the battery is abnormal and is contacted with the internal chemical solution is avoided, the possibility of battery explosion is reduced and safety is improved.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a battery equipped with an automatic current cut-off device. Background technique [0002] Due to its excellent characteristics, lithium batteries have gradually been accepted by the market and developed rapidly. However, during the use of lithium batteries, there are unsafe problems such as battery explosions when the batteries are overcharged or short-circuited. [0003] In order to solve the above problems, the technical solution provided by the prior art is to connect the CID (Current Interrupt device, current automatic cut-off device) combination cover plate and the aluminum cover plate together by sealing welding as the current automatic cut-off device, and install it inside the battery. [0004] However, in the process of using this technical solution, since the automatic current cut-off device is inside the battery, and there is no connection between the top cover and the alumin...

Claims

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Application Information

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IPC IPC(8): H01M10/0525H01M10/42H01M2/12H01M50/30
CPCH01M10/0525H01M10/42H01M50/30Y02E60/10
Inventor 邱实金炫中
Owner SUZHOU JUTIANHE METAL TECHNOLOGY CO LTD
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