Cathode Plate and a Lithium Ion Battery

Abstract

The present disclosure discloses a cathode plate and a lithium ion battery, and relates to the field of battery technologies. The cathode plate includes a cathode current collector and a cathode active material layer provided on the cathode current collector, wherein the compact density of the cathode active material layer is a g/cm3, where 2.9≤a≤3.5; the areal density of the cathode active material layer is b g/cm2, where 0.012≤b≤0.018; and the mass percentage of the conductive agent in the cathode active material layer is c, where 2.4%≤c≤4.4%, and the cathode active material layer satisfies the formula below: 3.3<a2×b/c<5.5. The lithium ion battery prepared from the cathode plate can achieve excellent Direct Current Resistance (DCR) performance while ensuring the energy density of the battery cell.

Dependencies are inferred from the claim text.