Positive electrode plate and energy storage device

Abstract

The present disclosure provides a positive electrode plate and an energy storage device. The positive electrode plate comprises a positive current collector and a positive electrode film provided on the positive current collector and comprising a positive electrode active material; the positive electrode film further comprises an additive, the additive comprises a C—C double bond-containing sultone. When the positive electrode plate of the present disclosure is applied in the energy storage device, the energy storage device has lower direct current internal resistance, excellent high temperature storage performance, excellent high temperature thermal stability performance and excellent low temperature lithium precipitation performance at the same time.

Dependencies are inferred from the claim text.