LITHIUM-ION BATTERY POSITIVE ELECTRODE AND PREPARATION METHOD THEREFOR AND METHOD FOR PREPARING LITHIUM-ION BATTERY

摘要

Disclosed are a lithium-ion battery positive electrode and a preparation method therefor, and a method for preparing a lithium-ion battery, the lithium-ion battery positive electrode comprising a positive electrode material, PVDF, a conductive agent and STOBA, wherein the parts by mass of the positive electrode material, the PVDF, the conductive agent and the STOBA are respectively 95-98 parts, 0.5-0.9 part, 0.8-1.2 parts and 0.2-0.5 part; the positive electrode material is at least one of lithium nickel cobalt manganate, lithium iron phosphate, lithium manganate, lithium vanadium phosphate, and nickel cobalt aluminum ternary materials. A lithium-ion battery prepared by using the positive electrode has the advantages of a good high temperature cycle performance, a low internal resistance and a low self-discharge, and same solves the technical problems of a poor cycle life and a high internal resistance of lithium-ion batteries in high temperature environments in the prior art.