New Approaches for Renewable Energy Using Metal Electrocatalysts for Lithium-O2 and Zinc-Air Batteries

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Sustainable Green Chemical Processes and their Allied Applications

Abstract

By 2050, electricity is expected to shift from 18 to 50% of the world’s energy resources, renewable energy sources will enlarge approximately four times the current deployed capacity, and meanwhile, the expectation is that the release of carbon dioxide will be reduced by 50% of the current value. In this panorama, it is relevant to propose a new set-up and systems for energy storage that are not yet available and that can handle the expected requests. The lithium-O2 and zinc-air batteries, based on their performances and availability of raw material, comprise an alternative and revolutionary technology for application in electric vehicles in an accessible way.

In this context, the development of high-technological materials such as electrocatalysts is a promising alternative to provide efficient charge transport during the process of reducing oxygen and housing of the discharge. To understand the technology of rechargeable systems, it is necessary to know what materials and chemical reactions in a battery occur. Specifically, the air electrode architecture composed of different materials, such as alloys, metal oxides, carbon nanotubes, and gas diffusion layers, has been widely used in both catalytic systems to allow the efficient transfer of charge and the synergistic effect in the triple electrical layer, speeding up the relevant reactions in the process. In this sense, the objective of the chapter is to report the current trends related to electrocatalysts that reduce the overpotential generated during charge and discharge in the lithium-O2 and zinc-air batteries.

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Acknowledgment

This work was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES) (Finance Code 001).

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Costa, J.M., de Almeida Neto, A.F. (2020). New Approaches for Renewable Energy Using Metal Electrocatalysts for Lithium-O2 and Zinc-Air Batteries. In: Inamuddin, Asiri, A. (eds) Sustainable Green Chemical Processes and their Allied Applications. Nanotechnology in the Life Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-42284-4_3

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