Asahi Kasei Kabushiki Kaisha

Fumiya Nakamura

Kazuteru Umetsu

Tadashi Matsushita

Yuima Kimura

Yusuke Yamahata

Kazuaki Takada

A non-aqueous lithium power storage element that includes a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, the positive electrode having a positive electrode collector and a positive electrode active material layer that includes active carbon, and the non-aqueous lithium power storage element having configuration (1) and/or (2). (1) The negative electrode includes a negative electrode collector and a negative electrode active material layer (2) The non-aqueous electrolyte contains (A) LiPFand/or LiBF, (B) an imide lithium salt, and (C) an oxalate-complex lithium salt, the ratio of the mass of component (C) to the total mass of components (A) and (B) being 1.0-10.0 mass %.

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Tokyo, Japan

Fumiya Nakamura