Patent ID: 9379375
Filing Date: 2016-06-28
CPC Classification: H01M,Y02E

Claim Text:
1. A lithium secondary battery cathode comprising: a cathode collector formed of a conductive substance, and a cathode active material layer which is formed of a sintered lithium composite oxide sheet having a thickness of 30 μm or more, a voidage of 3 to 30%, and an open pore ratio of 70% or higher, and which is bonded to the cathode collector by the mediation of a conductive bonding layer, wherein the sintered lithium composite oxide sheet has a layered rock salt structure, wherein the sintered lithium composite oxide sheet exhibits a ratio of intensity of X-ray diffraction by the (003) plane to intensity of X-ray diffraction by the (104) plane, [003]/[104], of 2 or less, wherein the intensity of X-ray diffraction is attained by measuring an X-ray diffraction profile of the surface of the sintered lithium composite oxide sheet, and wherein the (104) plane is oriented in a direction parallel to the surface of the sintered lithium composite oxide sheet.