Patent ID: 11929503
Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC H

Claim 0:
1. A positive electrode for a lithium-ion secondary battery, comprising:
a positive-electrode current collector; and
a positive-electrode active material layer that is provided on the positive-electrode current collector, wherein
the positive-electrode active material layer contains a positive-electrode active material and carbon nanotubes, and substantially does not contain a resin binder,
the positive-electrode active material includes a lithium composite oxide or a lithium transition metal phosphate compound,
the positive-electrode active material layer includes a layer-like region that is in contact with the positive-electrode current collector, and a region other than the layer-like region,
both of the layer-like region and the region other than the layer-like region contain carbon nanotubes, and
a content of carbon nanotubes in the layer-like region is larger than a content of carbon nanotubes in the region other than the layer-like region.