Lithium cell with a cathode comprising a copper compound oxide
AssigneeHitachi Maxell, Ltd.
InventorsHideaki Yumiba, Kazunobu Matsumoto, Akira Kawakami
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Abstract
There is provided a lithium cell comprising a negative electrode made of lithium or a lithium containing material, an electrolytic solution based on an organic solvent, and a positive electrode active material which comprises a copper compound oxide and an atomic ratio of a number of lithium atoms (Li) which react with one molecule of the copper compound oxide during discharge of the lithium cell to a number of oxygen atoms (O) contained in one molecule of the copper compound oxide, which ratio is expressed as Li/O, is at least 1.
Claims3
A lithium cell comprising a negative electrode comprising lithium or a lithium containing material, an electrolytic solution based on an organic solvent, and a positive electrode active material comprising a copper compound oxide, having an atomic ratio of at least 1 of a number of lithium atoms (Li) which react with one molecule of said copper compound oxide during discharge of said lithium cell to a number of oxygen atoms (O) contained in one molecule of said copper compound oxide, which ratio is expressed as Li/O, wherein said copper compound oxide comprises copper, tellurium and oxygen.
A lithium cell comprising a negative electrode comprising lithium or a lithium containing material, an electrolytic solution based on an organic solvent, and a positive electrode active material comprising a copper compound oxide, having an atomic ratio of at least 1 of a number of lithium atoms (Li) which react with one molecule of said copper compound oxide during discharge of said lithium cell to a number of oxygen atoms (O) contained in one molecule of said copper compound oxide, which ratio is expressed as Li/O, wherein said copper compound oxide comprises at least one member selected from the group consisting of Cu.sub.3 TiO.sub.4, Cu.sub.3 WO.sub.6, Cu.sub.3 TiO.sub.5, and Cu.sub.2 MgO.sub.3.
Dependencies are inferred from the claim text.