The text addresses the environmental impact of the automobile industry, highlighting the increase in pollutant emissions with the mass production of combustion vehicles. As a more sustainable alternative, electric vehicles have gained prominence because they do not emit pollutants and are more efficient. However, their batteries present technological challenges, such as high cost, limited useful life and environmental risks due to improper disposal. Batteries operate based on oxidation-reduction reactions, especially lithium-ion batteries, due to their high energy density. Studies suggest that battery performance can be improved with a higher carbon content in the electrodes. In this context, the use of sugarcane bagasse biochar in the anode is proposed, as it is abundant in Brazil, has good electrical conductivity, porosity and mechanical stability. Furthermore, the development of lithium-sodium (Li-Na) hybrid batteries is considered as a promising alternative, using sodium oxyhydroxide in the cathode, aiming at greater durability, lower cost and less environmental impact. The combination of organic materials and alternative elements can favor the circular economy, sustainability and commercial viability in different technological applications.
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