Patent ID: 11955632
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 5:
6. The positive active material of claim 5, wherein the second primary particles have a (003) plane, wherein an average interplanar spacing (d(003)) of the (003) plane of the second primary particles (surface grains) present in a surface portion of the second set of secondary particles is in the range of about 4.98 nm to about 5.00 nm, and
wherein an average interplanar spacing (d(003)) of the (003) plane of the second primary particles (inside grains) present in a center portion of the second set of secondary particles is in the range of about 4.98 nm to about 5.00 nm.