Anode of high-temperature lithium thionyl chloride battery and its making method

Abstract

The invention is concerned with the positive electrode of the lithium thinly chloride batteries and it's making method with the carbon positive electrode component as the acetylene black 10g, the polyetrafluoroethylene emulsion 1ml, the isopropyl alcohol positive electrode carbon compound 84ml, and the fiberglass material. The steps are: 1) powder mixing; 2) forming; 3) drying 4) frothing. The advantages of the invention are: it resolves the transmission resistance of the response ion and the ionic charge of the multi-hole electrode, changes the active particle charge transfer complexion on the surface of the carbon, simultaneously, the surface area of the electrode, and effects on the electrolyte gasification degree in high temperature to bare 150 deg.C to 200 deg.C high temperature working environment and fulfill other requests of the exploration instrument and the performance capability, which is not only able to work under high temperature but also under the condition of -40deg.C ( 40 deg.C below 0 deg.C) for providing great pulse current.

Description

technical field [0001] The invention relates to a lithium thionyl chloride battery, in particular to a positive electrode of a high-temperature lithium thionyl chloride battery and a preparation method thereof. Background technique [0002] With the development of the global economy, the demand for energy such as oil and natural gas continues to expand, which stimulates the exploration and exploitation of underground resources such as oil. In the process of exploration and exploitation of underground resources such as oil, people need to further understand and master the geological structure and resource reserves in the deep strata, so they must use relevant scientific exploration instruments and equipment. Since ordinary electric power cannot reach underground, these scientific exploration instruments and equipment must use batteries that can withstand high temperatures as the main power supply. In the working environment such as underground, there are often harsh working ...

AI Technical Summary

Problems solved by technology

However, due to the relatively low melting point of metallic lithium (at 182°C), and the fact that the electrolyte composition commonly used in lithium batteries contains organic or inorganic solvents, its saturated vapor pressure is relatively high and its boiling point is relatively low. The maximum operating temperature of ordinary lithium thionyl chloride batteries is only 85°C, which cannot work reliably at ambient temperatures above 150°C

Images