APPLICATIONS OF ADDITIVE, ELECTRODE PASTE, ADDITIVE PASTE, POSITIVE ELECTRODE OR NEGATIVE ELECTRODE OF LITHIUM-ION BATTERY AND PREPARATION METHOD THEREFOR, AND LITHIUM-ION BATTERY

摘要

Applications of an additive, an electrode paste, an additive paste, a positive electrode or a negative electrode of a lithium-ion battery and a preparation method therefor, and the lithium-ion battery. Specifically disclosed are applications of the additive in the preparation of the positive electrode or the negative electrode of the lithium-ion battery. The additive is M(OH)_a(PO₄)_b(CO₃)_c(OCOCH₃)_d•eH₂O, M being at least one of an IIA family metal element, an IB family metal element, a IIB family metal element, a IIIB family metal element, a IVB family metal element, a VB family element, a VIB family metal element, a VIIB family metal element, a VIII family metal element, a IIIA family metal element, the IVA family metal element and the VA family metal element, a0,b≥0,c≥0,d≥0 and b, c and d being not simultaneously equal to 0, e≥0. The addition of the additive in the preparation of the positive electrode or the negative electrode of the lithium-ion battery can remarkably improve the safety of the prepared lithium-ion battery.