Summarized were the solid state electrolyte materials used for oxygen sensor in the electronic fuel insufflation ( EFI) system of the engine. The binary, ternary or multi-component zirconia based solid solution electrolytes were modified by doping with oxide ( MOn, n < 2). 介绍了汽车发动机电子控制燃油喷射系统(EFI)的氧传感器(EGO)ZrO2基电解质材料,用氧化物MOn(n<2)对ZrO2进行掺杂改性;