| 摘要 |
A method for determining a cation which is stable to oxygen radical. Specifically, a lithium air cell which includes at least an air electrode, a negative electrode and a non-aqueous electrolyte that is interposed between the air electrode and the negative electrode. The lithium air cell is characterized in that the nonaqueous electrolyte contains an ionic liquid that does not contain atoms having a positive charge larger than that of a hydrogen atom and is composed of cations, which have an average of the charges carried by atoms other that hydrogen atoms of 0 or less, and counter anions of the cations.
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