0588546 - ÚJF 2025 RIV DE eng J - Článek v odborném periodiku
Wells, L. - Pham, T. A. - Eshetu, G. G. - Seidlmayer, S. - Ceccio, Giovanni - Cannavo, A. - Vacík, Jiří - Mikitisin, A. - Müller-Buschbaum, P. - Gilles, R. - Figgemeier, E.
Unraveling the Role and Impact of Alumina on the Nucleation and Reversibility of β-LiAl in Aluminum Anode Based Lithium-Ion Batteries.
ChemElectroChem. Roč. 11, č. 17 (2024), č. článku e202400322. ISSN 2196-0216. E-ISSN 2196-0216
Grant CEP: GA MŠMT EF16_013/0001812
Výzkumná infrastruktura: CICRR - 90241
Institucionální podpora: RVO:61389005
Klíčová slova: aluminium * calorimetry * energy storage * lithium-ion battery * neutron depth profiling (NPD)
Obor OECD: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Impakt faktor: 3.5, rok: 2023 ; AIS: 0.73, rok: 2023
Způsob publikování: Open access
Web výsledku:
https://doi.org/10.1002/celc.202400322DOI: https://doi.org/10.1002/celc.202400322

Aluminum, due to its high abundance, very attractive theoretical capacity, low cost, low (de-) lithiation potential, light weight, and effective suppression of dendrite growth, is considered as a promising anode candidate for lithium-ion batteries (LIBs). However, its practical application is hindered due to multiple detrimental challenges, including the formation of an amorphous surface oxide layer, pulverization, and insufficient lithium diffusion kinetics in the alpha-phase. These outstanding intrinsic challenges need to be addressed to facilitate the commercial production of Al-based batteries. The native passivation layer, Al2O3, plays a critical role in the nucleation and reversibility of lithiating aluminum and is thoroughly investigated in this study using high precision electrochemical micro calorimetry. The enthalpy of crystallization of beta-LiAl is found to be 40.5 kJ mol(-1), which is in a strong agreement with the value obtained by calculation using Nernst equation (40.04 kJ mol(-1)). Surface treatment of the active material by the addition of 25 nm of alumina increases the nucleation energy barrier by 83 % over the native oxide layer. After the initial nucleation, the added alumina does not negatively impact the reversibility at 0.1 C rate, suggesting the removal of alumina is not necessary for improving the cyclability of aluminum anode based lithium-ion batteries. Moreover, the coulom
Trvalý link: https://hdl.handle.net/11104/0355644