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US 6,932,955 B2Granted
Powder material, electrode structure, production processes thereof, and secondary lithium battery
AssigneeCanon Kabushiki Kaisha
InventorsTomoya Yamamoto, Soichiro Kawakami, Naoya Kobayashi
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Abstract
Disclosed herein is a powder material comprising a compound which electrochemically intercalates and deintercalates a lithium ion, wherein the powder material is comprised mainly of a compound containing at least an oxygen element, a sulfur element and at least one transition metal element.
Claims8
A powder material comprising a compound which electrochemically intercalates and deintercalates a lithium ion, wherein the powder material is comprised of a compound having a structure such that at least one transition metal element is complexed with an oxygen element and a sulfur element,
- wherein a content ratio of the oxygen element to the sulfur element in the powder material is 0.1 to 100 in terms of an elementary molar ratio, and an elementary molar ratio of (the oxygen element+the sulfur element) to the transition metal element is 1.0 to 3.0, and
- wherein the powder material is comprised of particles having a mean particle diameter of 0.05 to 100 μm.
Dependencies are inferred from the claim text.