Lithium battery explosion-proof device
An explosion-proof device and lithium battery technology, which is applied in the direction of lithium batteries, battery pack components, non-aqueous electrolyte batteries, etc., can solve problems such as increased production costs, difficult processing, and complex structure of explosion-proof devices
Inactive Publication Date: 2018-01-16
朱建浩
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In order to avoid such danger, an explosion-proof device is added on the basis of the air-filled hole. Due to the complex structure of the explosion-proof device, the processing is difficult, and the production cost is correspondingly increased; The thin pits of the original shell are directly used for explosion-proof, or processed into through-holes, and the through-holes are covered with metal foil by welding for explosion-proof and sealing. Due to the technology of welding the shell and metal foil The requirements are high, so the welding index is difficult to control, and the explosion-proof effect is extremely unstable
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0008] The present invention will be further described below in conjunction with accompanying drawing:
[0009] See Figure 1, the top of the lithium battery casing (5) is provided with a positive electrode (1) and a negative electrode (4). A ventilation hole (3) is provided between the positive electrode (1) and the negative electrode (4), and a rubber sheet (2) is fixed on the ventilation hole (3).
[0010] See Figure 1, the top of the lithium battery casing (5) is provided with a positive electrode (1) and a negative electrode (4). A ventilation hole (3) is provided between the positive electrode (1) and the negative electrode (4), and a rubber sheet (2) is fixed on the ventilation hole (3).
[0011] When in use, the needle tube filled with liquid passes through the rubber sheet (2) to inject electrolyte and nitrogen gas into the lithium battery case (5), and after the needle is pulled out, the needle hole is closed by the elasticity of the rubber sheet (2) , so that the e...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a lithium battery explosion-proof device. The lithium battery explosion-proof device comprises a lithium battery case, a positive electrode, a negative electrode and a rubber sheet. The lithium battery case is provided with a vent hole, the rubber sheet covers the vent hole and is fixed to the vent hole and the thickness of the rubber sheet is 0.5-5mm. The rubber sheet is used as an anti-explosion valve, a liquid injection hole for injection of the electrolyte and nitrogen into the battery is avoided and the injection hole and the anti-explosion valve are integrated. The lithium battery explosion-proof device has a simple structure, realizes a low cost and is easy to operate. In use, a needle tube passes through the rubber sheet and injects the electrolyte and nitrogen into the battery and after the needle tube is pulled out, the needle hole is closed under action of the elasticity of the rubber sheet so that the electrolyte and nitrogen are not leaked and the lithium battery can work normally. The lithium battery explosion-proof device is suitable for lithium batteries with different shapes and thickness values.
Description
technical field [0001] The lithium battery explosion-proof device of the present invention relates to the technical field of lithium batteries, and is applied to the explosion-proof of lithium batteries. Background technique [0002] Lithium batteries are widely used in various products, including household appliances and electric vehicles, due to their advantages such as light weight, small size, large electric capacity, and fast charging speed. [0003] However, lithium batteries often generate heat, burn or even explode during use, which directly endangers people's life safety. In the slightest, it affects the use of the host, and in severe cases, it will burn the host and cause a fire. According to reports, there have been many family fire accidents caused by the heating and burning of lithium batteries in Japan in recent years. [0004] In order to avoid such danger, an explosion-proof device is added on the basis of the air-filled hole. Due to the complex structure of...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H01M2/12H01M2/36H01M10/052H01M50/325H01M50/636
CPCY02E60/10
Inventor 朱建浩
Owner 朱建浩