Current collectors corrosion behaviours and rechargeability of TiO2 in Aqueous Electrolyte Aluminium-ion batteries - UFR de Chimie de Sorbonne-Université
Article Dans Une Revue Journal of Applied Electrochemistry Année : 2023

Current collectors corrosion behaviours and rechargeability of TiO2 in Aqueous Electrolyte Aluminium-ion batteries

Résumé

The effects of current collectors on the battery performance have significant role, especially in aqueous electrolyte Al-ion batteries, as corrosion effects lead to rapid capacity degradation over cycles. To overcome this problem, we present a study investigating the selection of suitable current collectors and their impact on battery performance. Four different current collectors are selected for this purpose: stainless steel (SS), nickel foil (Ni), titanium foil (Ti) and graphite plate (GP). It has been proven by corrosion tests, cyclic voltammetry and charge-discharge studies that GP is the best current collector by minimizing the corrosion effect and H2 evolution reaction (HER). The anatase phase TiO2 used with GP current collector provides a 249 mAh g - 1 initial discharge capacity at a current density of 3A g -1 , while inferior or no electrochemical activity is observed with Ti, SS, Ni current collectors. The observations here provide insights into the selection of corrosion-resistant current collectors to achieve stable battery performance in the field of aqueous electrolyte Al-ion batteries.

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Chimie
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Dates et versions

hal-04805438 , version 1 (26-11-2024)

Identifiants

Citer

Burcu Unal, Ozlem Sel, Rezan Demir-Cakan. Current collectors corrosion behaviours and rechargeability of TiO2 in Aqueous Electrolyte Aluminium-ion batteries. Journal of Applied Electrochemistry, 2023, 54, pp.1425-1434. ⟨10.1007/s10800-023-02029-0⟩. ⟨hal-04805438⟩
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