Life tests of lithium/fluorocarbon cells

Long-term (15 years) tests of lithium/fluorocarbon cells (Li-CFx) are performed using the full-scale and accelerated storage in a wide temperature range. Regularities governing the capacity loss of the cells in different storage modes are discovered. The self-discharge rate constants are determined for different temperatures. A mechanism is proposed, which explains the cell self-discharge by the occurrence of a number of chemical reactions that lead to the loss of active fluorine and the electrode passivation. The activation energy for the self-discharge process is determined