A lithium battery pole cap device with high magnification for launch vehicle
A launch vehicle and high-rate technology, which is applied in the direction of lithium batteries, battery covers/end covers, battery pack components, etc., can solve the problems of lithium battery inflation and exhaust, high voltage drop of poles, high heat of poles, etc., to achieve The effect of avoiding failure, small contact internal resistance, and small heat generation
Active Publication Date: 2018-12-25
SHANGHAI INST OF SPACE POWER SOURCES
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The main technical problems solved by the present invention are: solving the problems of high voltage drop of the pole of the high-rate lithium battery of the launch vehicle, high heat of the pole, single-point failure, and gas expansion and exhaust of the lithium battery.
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
[0016] Such as figure 1 As shown, a schematic diagram of a high-rate lithium battery pole top cover device for a launch vehicle in the present invention, the pole top cover device includes a battery top cover 1, a positive pole post 2, a fixing stud 3, a sealing post 4, and a screw 5. Sealing support layer 6 , outer sealing insulating layer 7 , inner sealing insulating layer 8 , negative post 9 , choke pad 10 . The positive pole 2 and the negative pole 9 are respectively installed in the through holes on both sides of the battery top cover 1. From bottom to top, the positive pole 2 (negative pole 9), the inner sealing insulating layer 8, the battery top cover 1, and the outer sealing insulation Layer 7, sealing support layer 6, screw 5, positive pole 2, negative pole 9, top cover 1, and sealing support layer 6 form an inner sealing insulating layer 8 and an outer sealing insulating layer 7 with a thickness of 0.2 mm to 2 mm through integral injection molding , and use screws ...
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 |
|---|---|---|
| height | aaaaa | aaaaa |
| depth | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
A lithium battery pole cap device with high magnification for launch vehicle features that the pole is electrically connected with double screw holes to improve the reliability of connection and avoidthe failure of single point of electric conduction. Compared with traditional batteries, the conductive connection surface increases the conductive contact area and decreases the voltage drop and temperature rise in the process of large current discharge. The two external conductive connection screw holes are diagonal structure, which can realize the interconnection between the horizontal lithiumbatteries without reducing the flatness of the connection, and provide a guarantee for the feasibility of the subsequent battery assembly process. A liquid injection hole is arranged on the top coverof the device, and the liquid injection hole adopt a sealing column of polytetrafluoroethylene to be transversely deformed and filled into a plurality of annular notches in the liquid injection holethrough axial force so as to realize the seal of the liquid injection hole; Liquid injection holes are sealed by screws, which is of great value in the field of launch vehicles.
Description
technical field [0001] The invention relates to a lithium ion battery, in particular to a high-rate lithium battery pole top cover device for a launch vehicle. Background technique [0002] With the development of technology, high-rate lithium-ion batteries have emerged, and the application range of lithium-ion batteries is becoming wider and wider. Compared with traditional zinc-silver batteries, high-rate lithium-ion batteries have greater advantages in specific energy, specific power, cycle performance, and use performance. Therefore, high-rate lithium-ion batteries gradually replace zinc-silver batteries in the field of launch vehicles to provide DC power for the control system and measurement system of the launch vehicle. High-rate lithium batteries for launch vehicles have the characteristics of high-current discharge, and the discharge rate can reach as high as 80C. It is required to minimize the internal resistance of the circuit. However, most of the pole structur...
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 Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/30H01M2/04H01M2/08H01M10/052H01M50/148H01M50/174H01M50/188H01M50/193H01M50/552
CPCH01M10/052H01M50/147H01M50/183H01M50/543Y02E60/10
Inventor 沈川杰赵建伟史佳超李克锋王冠
Owner SHANGHAI INST OF SPACE POWER SOURCES