Patent ID: 8795898
Filing Date: 2014-08-05
Classification: H01M,Y02E

Abstract:
1. A lithium secondary battery comprising: a positive electrode which contains a plate-like particle having a layered rock salt structure as a cathode active material, wherein a lithium ion gateway plane is oriented in parallel with a plate surface, which is a surface orthogonal to a thickness direction of the particle and thus exposed at the plate surface, a plurality of layers are stacked together in the thickness direction, each of the layers has a plurality of crystallites densely joined together, each crystallite within a given layer has the same crystal axis in the thickness direction but has a different crystal axis in a direction perpendicular to the thickness direction, and each layer in the thickness direction has a dimension of 0.2-5 μm; a negative electrode which contains a carbonaceous material or a lithium-occluding material as an anode active material; and an electrolyte provided so as to intervene between the positive electrode and the negative electrode.