Electrolyte additive for non-aqueous electrochemical cells

An electrochemical cell comprising a cathode containing MnO2, an anode containing lithium, and an electrolyte containing a perchlorate salt, wherein the cell includes an aluminum surface in electrical contact with a second metal surface, wherein the second metal surface is different than the aluminum surface.

An electrochemical cell comprising a cathode containing an aluminum current collector, an anode, and an electrolyte containing a lithium salt and a perchlorate salt, wherein the cell is a primary electrochemical cell.

An electrochemical cell comprising a cathode containing MnO2, an anode containing lithium, an aluminum surface, and an electrolyte containing about 500 ppm to about 2000 ppm by weight of a perchlorate salt.

An electrochemical cell comprising a cathode containing MnO2, an anode containing lithium, and an electrolyte containing a perchlorate salt, wherein the cell is a primary electrochemical cell, and wherein the cell includes two pieces of aluminum in electrical contact with each other.

A method of inhibiting aluminum corrosion in an electrochemical cell, the method comprising:

• (a) adding a perchlorate salt to an electrolyte;
• and
• (b) placing the electrolyte, an anode containing Li, and a cathode containing MnO2 and an aluminum current collector into a cell case to form the cell, wherein the cell is a primary electrochemical cell.