Abstract: A F-type electrochemical cell, which is a lithium air battery, includes a positive electrode facing a negative electrode composed of metallic lithium with a separator provided therebetween in a casing. Air is capable of flow to the positive electrode. A nonaqueous electrolytic solution is charged into a space between the positive electrode and the negative electrode. At least one of the positive electrode and the nonaqueous electrolytic solution of the lithium air battery contains a compound having a stable radical skeleton. The compound also serves as a redox catalyst for oxygen.

Abstract: In an F-type electrochemical cell 20, in a casing 21, a positive electrode 23 in which carbon dioxide gas is used as a positive electrode active material and a negative electrode 25 are placed so as to face each other with a separator 27 therebetween, and an electrolyte solution 28 is injected between the positive electrode 23 and the negative electrode 25. A tank 30 storing carbon dioxide gas is connected to the positive electrode 23, and carbon dioxide gas is supplied to the positive electrode 23 through a holding member 29. By supplying carbon dioxide gas to the positive electrode in such a manner, the cell can be operated as a battery. Furthermore, when used a primary battery, carbon dioxide can be immobilized in the battery, which is desirable.

Abstract: A F-type electrochemical cell, which is a lithium air battery, includes a positive electrode facing a negative electrode composed of metallic lithium with a separator provided therebetween in a casing. Air is capable of flow to the positive electrode. A nonaqueous electrolytic solution is charged into a space between the positive electrode and the negative electrode. At least one of the positive electrode and the nonaqueous electrolytic solution of the lithium air battery contains a compound having a stable radical skeleton. The compound also serves as a redox catalyst for oxygen.

Abstract: Disclosed are a nonaqueous electrolytic solution for a battery comprising a supporting electrolyte which can react with water to produce a hydrogen halide and a specific organic compound capable of reacting with water to decompose it for preventing acid generation, and a nonaqueous electrolytic solution battery comprising the same.

Abstract: A nonaqueous electrolytic solution for a battery, which contains a supporting electrolyte which reacts with water to produce an acid; and a complex-forming compound which forms an inert complex by reacting with water and a supporting electrolyte to prevent acid generation.