Integrated composite oxygen electrode, and preparation method and application thereof

• Main Authors: ZHAO NINGBO, ZHANG DEQUAN, XU YONGQIANG, SONG SHIDONG, RUAN YANLI, MEI DONGHAI
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses an integrated composite oxygen electrode, and a preparation method and application thereof. The preparation method comprises the following steps: dissolving polyoxyethylene in acetonitrile, and adding lithium salt and inorganic electrolyte to prepare uniform electrolyte membrane slurry; dissolving polyoxyethylene in N-methyl pyrrolidone, and adding lithium salt and inorganic electrolyte to prepare composite binder slurry; grinding the composite binder slurry and a catalyst, uniformly coating a current collector with the composite binder slurry and the catalyst, and drying to obtain a composite oxygen electrode; and pouring the electrolyte membrane slurry on the composite oxygen electrode, slicking and drying to obtain the integrated composite oxygen electrode. According to the integrated oxygen electrode, the composite electrolyte material with the ion conducting characteristic is used for replacing an inert binder, a lithium ion continuous transmission channel from the oxygen electrod