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US 8,262,747 B2Granted
Cathode active material, cathode, nonaqueous electrolyte battery, and method for manufacturing cathode
AssigneeSony Corporation
InventorsTomoyo Ooyama, Yukifumi Takeda, Masanori Soma, Hideki Nakai
Life of this patent
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Abstract
A cathode active material has: a lithium composite oxide which contains the highest proportion of nickel among constituent metal elements except lithium; and a phosphorus compound which is contained near the surface of the lithium composite oxide, a cathode including the cathode active material, and a method for manufacturing the cathode.
Claims9
A method for manufacturing a cathode, comprising the steps of:
- mixing phosphorous acid (H3PO3) with cathode active material to prepare a cathode mixture slurry;
- and
- applying the cathode mixture slurry to a cathode current collector to form a cathode active material layer;
- wherein the phosphorous acid (H3PO3) is mixed with the cathode active material, a conductive agent and a binder to form the cathode mixture slurry.
1 more element
Dependencies are inferred from the claim text.