Patent ID: 11894524
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A positive electrode plate, comprising:
a positive electrode current collector,
a positive electrode active material layer disposed on at least one surface of the positive electrode current collector, and
a safety layer disposed between the positive electrode current collector and the positive electrode active material layer;
wherein:
the safety layer comprises a binding substance, a conductive substance, and a special sensitive substance; and
the special sensitive substance comprises at least one product of esterification of polysaccharide, wherein a weight-average molecular weight Mw of the special sensitive substance is from 1000 to 28000, wherein a single-sided capacity per unit area of the positive electrode plate is ≤4.1 mAh/cm2, and
wherein a degree of esterification of monosaccharide units in the product of esterification of polysaccharide is 50% to 98%.