Spinel-type lithium metal composite oxide
AssigneeMitsui Mining & Smelting Co., Ltd.
InventorsHitohiko Ide, Daisuke Washida, Yuji Hoshi, Yoshimi Hata
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Abstract
Provided is a spinel-type lithium metal composite oxide that makes it possible to achieve excellent high-temperature storage characteristics when used as a positive electrode active material of a lithium battery. The spinel-type (Fd-3m) lithium metal composite oxide is characterized by the oxygen occupancy (OCC) thereof as determined by the Rietveld method being 0.965-1.000, the lattice strain thereof as determined by the Williamson-Hall method being 0.015-0.090, and the ratio (Na/Mn) of the molar content of Na to the molar content of Mn satisfying 0.00<Na/Mn<1.00×10−2.
Claims15
A spinel-type (Fd-3m) lithium metal composite oxide in which oxygen occupancy (OCC) is 0.965 to 1.000 as determined by the Rietveld method, lattice strain is 0.015 to 0.090 as determined by the Williamson-Hall method, and a ratio (Na/Mn) of a molar content of Na to a molar content of Mn satisfies 0.00<Na/Mn<1.00 10−2.
A spinel-type (Fd-3m) lithium metal composite oxide in which oxygen occupancy (OCC) is 0.965 to 1.000 as determined by the Rietveld method, lattice strain is 0.020 to 0.090 as determined by the Williamson-Hall method, and a ratio (Na/Mn) of a molar content of Na to a molar content of Mn satisfies 0.00<Na/Mn<1.00 10−2.
Dependencies are inferred from the claim text.