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Metal-air batteries have been considered promising as nextgeneration energy storage systems for powering vehicles, residentialapplications and portable electronic devices due to their the high energydensity and low cost. Widespread commercialization of rechargeable zinc-air batterieshinges, however, on further reduction in materials cost, improvements ofcomponent performance and durability, and increase in overall efficiency. Forthe oxygen catalysts of rechargeable zinc-air batteries, the longstanding goalshave been low cost, high catalytic activity and viable durability. This talkwill address the main challenges of the oxygen electrocatalysts for rechargeablezinc-air batteries by developing novel nano-engineered perovskite-carbonnanotube core-corona structured bi-functional catalysts and highly durable 3-Dbifunctional air electrodes. We will also discuss how nanoengineered materialscan enhance the catalytic activity and durability of oxygen electrocatalystsand how surface structures and chemical compositions of catalysts affect theelectrocatalytic activity for oxygen reduction reaction (ORR) and oxygenevolution reaction (OER).

Catalysts, Zinc-air Battery, Oxygen reaction