Lithium battery technology currently dominates the electrical vehicle market and it is expected will dominate over the next decade as it is mature enough to rapidly deliver new electrochemical devices. However, several issues related to safety and large scale availability of Lithium have determined in recent years the development of a new research field, known as "beyond Lithium", in the attempt to identify innovative systems for electric energy storage based on different metal anodes. In this context, metal-air batteries are the most promising electrochemical devices able to provide high theoretical energy and power densities and also, if properly conceived, to satisfy the sustainability characteristics imposed by modern legislations. Among the various metals considered as anode in metal-air batteries, Aluminum is the material with the most satisfactory parameters of economy/ecology and electrochemistry at the same time. The technological challenge in the research on Al-air batteries consists in obtaining sustainable electrochemical devices with practical values of energy and power density, that are competitive with those of current lithium-ion systems. Above all, to make these batteries electrically rechargeable in aqueous electrolytes, taking into account that the re-deposition of the Aluminum during the charging phase is hampered by competitive reactions which consume current before the reduction potential of aluminum is reached.In this paper we present our recent results on quasi-solid-state Aluminum-air batteries realized with new electrolytes based on aqueous solutions at different pH and natural polysaccharides. We show that gel solid electrolytes in primary Al-air cells are able to provide 70 mAh cm-2 as cell capacity at discharge current of 10 mA cm-2. We finally remark some differences between alkaline and acidic electrolytes and their impact on primary cell electrochemical performance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Eco-Friendly Aluminum-Air Batteries as a Possible Alternative to Lithium Systems


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    15th International Conference on Engines & Vehicles ; 2021



    Publication date :

    2021-09-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Lithium Batteries: An Environment Friendly Fuel

    Ganesan, M. / Kalaiselvi, N. / Veluchamy, A. et al. | British Library Conference Proceedings | 1999


    Lithium-aluminum/metal sulfide batteries

    STEUNENBERG, R. | AIAA | 1977


    Lithium-aluminum-iron sulfide batteries

    Henriksen, G.L. | Online Contents | 1994


    Lithium-aluminum/iron sulfide batteries

    Henriksen, G.L. / Vissers, D.R. | Tema Archive | 1994