Positive Electrode Plate, Preparation Method therefore and Lithium-Ion Secondary Battery

Abstract

Disclosed are a positive electrode plate, a preparation method therefore and a lithium-ion secondary battery, relating to the technical field of batteries. The positive electrode plate includes a positive electrode current collector and a positive electrode coating layer that is coated on the positive electrode current collector and contains a positive electrode active substance; the positive electrode plate satisfies 0.07<a{circumflex over ( )}3*10*β/γ<0.14, a represents the compaction density of the positive electrode coating layer, β represents the surface density of the positive electrode coating layer, and γ represents the thickness of the positive electrode current collector. While the positive electrode plate satisfies the above formula, the compaction density, the surface density and the current collector thickness of the positive electrode plate may be reasonably configured, such that it satisfies the requirements of the formula 0.07<a{circumflex over ( )}3*10*β/γ<0.14, and thus the lithium-ion secondary battery prepared by it has a long service life and excellent DCR performance.

Dependencies are inferred from the claim text.