A single battery of a thermal battery for a launch vehicle

Abstract

The invention discloses a battery cell of a thermal battery for a carrier rocket. The battery cell of the thermal battery for the carrier rocket comprises an isolating powder, a heating powder, a positive electrode powder and a negative electrode powder, wherein the isolating powder consists of LiF-LiCi-LiBr ternary all-lithium electrolyte molten salt and a molten salt adsorbent; the molten salt adsorbent accounts for 50-65% of the total mass of the isolating powder. A performance characteristic that the pulse voltage drop change rates of the thermal battery in three working time periods of 5-20s, 45-55s and 65-75s are lower than 2% is achieved, and the performance reliability of load equipment on the rocket is guaranteed. Raw materials and a component preparation technology of the batterycell of the thermal battery provided by the invention are the same as those of the conventional thermal battery, so that large-scale production can be carried out under the premise of not restructuring the conventional production line and the production process is high in universality; the cost pressure is low and the economic benefits are good while model development and production tasks of a new-generation solid carrier rocket are met.

Description

technical field [0001] The invention belongs to the technical field of thermal batteries, and relates to a thermal battery, in particular to a single battery of a thermal battery for a launch vehicle. Background technique [0002] Long March-11 (hereinafter referred to as cz-11) is my country's first solid carrier rocket, which is mainly used to meet the launch of natural disasters, emergencies and other emergency situations. In order to meet its high-efficiency and rapid launch characteristics, it is required It must have the ability of quick response and short test and maintenance time. However, the preparation time of traditional zinc-silver batteries is as long as 36-48 hours, which obviously cannot meet the actual needs of the Long March-11 rocket. [0003] The thermal battery is a primary storage battery that uses the heating system of the battery itself to heat and melt the non-conductive solid-state salt electrolyte into a low-resistance ionic conductor and enter the ...

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Problems solved by technology

[0004] For now, there is no precedent in the world for launch vehicles using thermal batteries as the power supply on the arrow. Compared with the power demand of medium- and long-range strategic missiles with similar performance, the output of the launch vehicle to the power supply on the arrow The power requirements are low, but the requirements for the output pulse output pressure drop change rate are relatively high, and the existing thermal battery products are still difficult to reach the level of zinc-silver batteries in these two aspects. The thermal battery can not only solve the actual requirements of the progress of my country's aerospace industry, but also play a positive role in the development of thermal battery technology

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