| abstract |
The present application relates to the field of energy storage materials, and in particular, to a battery. The battery of the present application includes a positive pole piece, a negative pole piece, a separator placed between the positive pole piece and the negative pole piece, and an electrolyte, the positive pole piece contains a positive active material, and the electrolyte includes an organic solvent, an electrolyte and an additive; The positive electrode active material is a ternary positive electrode material, and the additives include a cyclophosphazene compound and a fluorobisoxalate phosphate. The electrolyte in the battery of the present application can reduce the erosion of HF on the positive interface, protect the positive interface; at the same time, suppress the increase of the positive and negative interface impedance, improve the cycle storage life, and thus improve the high-voltage cycle performance and high-temperature storage performance of the battery. |