Patent ID: 9059478
Filing Date: 2015-06-16
Classification: H01M,Y02E,Y02P,Y02T

Abstract:
1. A lithium-ion secondary battery comprising: a positive electrode comprising: a negative electrode; and an electrolyte between the positive electrode and the negative electrode, wherein each of the plurality of single crystal particles comprises a lithium-containing composite oxide which is expressed by a general formula LiMPO wherein a part of the plurality of the single crystal particles does not overlap with the graphene layer which is in direct contact with the positive electrode current collector, wherein in each of the plurality of single crystal particles, a length in a b-axis direction is shorter than each of lengths in an a-axis direction and a c-axis direction, and wherein each of the plurality of single crystal particles is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with a surface of the positive electrode current collector.