Super-capacitor serving as primary power source of launch vehicle

Abstract

The invention relates to a chemical power source and particularly discloses a super-capacitor serving as the primary power source of a launch vehicle. The super-capacitor comprises a shell, porous electrodes, diaphragms, electrode posts, electrode tabs, electrolytes poured into the shell, and a cover arranged at the top of the shell, wherein according to the invention, the electrodes are coated with the diaphragms to form electric piles in the shell; the electrode tabs of the electric piles are screwed with the electrode posts via screws; and an upper sealing ring and a lower sealing ring are compressed tightly at the upper ends of the electrode posts via nuts. The super-capacitor of the invention solves the problem that the contact resistance between the electrode tabs and electrode posts is high and achieves the beneficial effects of low internal resistance, good high-rate discharging performance, convenient assembly and high safety and reliability.

Description

technical field [0001] The invention relates to chemical power supply products, in particular to a supercapacitor used for the primary power supply of launch vehicles. Background technique [0002] The invention relates to a new chemical power source - supercapacitor. Supercapacitors and high-energy batteries form a hybrid power supply, which can be used as a new primary power supply for launch vehicles. Among them, the supercapacitor supplies power for pulse loads such as explosive devices on the arrow and the start of the servo mechanism; the lithium-thionyl chloride battery supplies power for constant loads such as the instrument on the arrow. Compared with the traditional zinc-silver battery on the arrow, the supercapacitor for launch vehicles can provide higher pulse specific power, and has the advantages of long storage life, wide temperature range, and easy operation. [0003] Supercapacitor, also known as electrochemical capacitor, is a new type of energy storage d...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the defects caused by the existing supercapacitor structure, such as difficulty in heat dissipation of the pole piece and the large contact resistance between the tab and the terminal, the internal heating phenomenon is serious when the supercapacitor is discharged with a large current. When the area of ​​the pole piece increases , this effect is particularly obvious, and it will seriously cause technical problems such as internal electrolyte decomposition and shell rupture. The purpose of the present invention is to provide a supercapacitor for primary power supply of launch vehicles, which has high specific energy when combined with high-energy batteries and high specific power hybrid power supply, used as a new type of primary power supply for launch vehicles

Images