Discharge characteristics of manganese dioxide/lithium cells in various electrolyte solutions

The discharge characteristics of manganese dioxide/lithium cells are studied in various electrolyte solutions that consist of a mixture of propylene carbonate and various non-cyclic di-ethers as a solvent. The high-rate discharge characteristics are found to be greatly influenced by the conductivity of the electrolyte solution. An electrolyte solution of propylene carbonate and 1,2-dimethoxyethane exhibits the largest discharge capacity. On the other hand, the capacity at low temperature (−20°C) discharge is the highest in a cell that employs a mixture of propylene carbonate and ethoxymethoxyethane as a solvent.