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US 2024/0405215 A1Published application
Positive active material for secondary battery
AssigneeNichia Corporation
InventorsToru KOIZUKA, Shinya HAMAGUCHI, Yasuhiro YOSHIDA, Naohiro IKEDA
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Abstract
A positive active material for a lithium ion battery has a layered structure and contains nickel atoms and cobalt atoms. The positive active material has a ratio of a number of moles of the nickel atom to a total number of moles of metal atoms other than lithium that is 0.7 or more and less than 1. The positive active material has a disorder of lithium element determined by an X-ray diffraction method that is 6.2% or less.
Claims8
A positive active material for a lithium ion battery having a layered structure, the positive active material comprising nickel atoms and cobalt atoms,
- wherein the positive active material has a ratio of a number of moles of the nickel atoms to a total number of moles of metal atoms other than lithium that is 0.7 or more and less than 1, and
- wherein the positive active material has a disorder of lithium element determined by an X-ray diffraction method that is 6.2% or less.
Dependencies are inferred from the claim text.