CHEMICAL CURRENT SOURCE WITH REACTION FORMED ELECTROLYTE Russian patent published in 2016 - IPC H01M6/18 H01M10/36 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to chemical current sources converting chemical energy into electrical energy, and is intended for use in system for launch and on-board power supply in rocket and space engineering. According to invention electrochemical cell comprises an anode of an alkali or alkali-earth material, for example lithium, and a cathode made of elements of V-VI groups of periodic table, for example sulphur. Electrolyte is a compound of anode and cathode materials having ionic conductivity. To ensure a sufficiently high current density of electrolyte thickness should be minimised. In a particular case, electrolyte may be formed by contacting anode and cathode components. During discharge of the electrochemical cell, volume of cathode increases due to which electrolyte film may break and be formed again. Result is instability of operation of cell, also caused by significant heat release as a result of direct reaction of anode and cathode components. To eliminate said instability, it is proposed to enable movement of anode block when cathode volume increases via free immersion of anode into molten cathode component ensuring clearance between body elements of anode and cathode blocks.

EFFECT: high stability of discharge, longer time of discharge of electrochemical cell at specified mode of external load.

1 cl, 1 dwg