THIN FILMS OF VANADIUM DIOXIDE VO2(B) WITH NO BINDER, MADE DIRECTLY ON ALUMINIUM FOIL BY PULSED LASER DEPOSITION AS A CATHODE BATTERY AND METHOD FOR PREPARING THE SAME

The invention relates to a method for preparing a thin film of vanadium oxide on metal foil, meant to be used in energy storage. According to the invention, the method consists in making a V2O5 powder target having a control stoichiometry and sufficient mechanical resistance, followed by target abla...

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Hauptverfasser: TITE TEDDY, BUGA MIHAELA RAMONA, UNGUREANU COSMIN GIORGIAN, SPÎNU-ZĂULEŢ ADNANA ALINA, NEGRILĂ CĂTĂLIN, GALATANU ANDREI, LAZĂR MARIAN, STAVARACHE IONEL
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a method for preparing a thin film of vanadium oxide on metal foil, meant to be used in energy storage. According to the invention, the method consists in making a V2O5 powder target having a control stoichiometry and sufficient mechanical resistance, followed by target ablation with pulsed laser, in order to create a column of ejected material based on the quick explosion of the target surface zone due to overheating, deposition on a metal foil, quick thermal annealing of the resulting sample in nitrogen atmosphere and use thereof as an electrode in electrochemical applications and battery testing. Invenţia se referă la o metodă de fabricare a unui film subţire de oxid de vanadiu pe folie metalică, destinat a fi utilizat în domeniul stocării energiei. Metoda, conform invenţiei, constă în obţinere unei ţinte din pulbere de V2O5, care să aibă o stoichimetrie de control şi să fie suficient de rezistentă mecanic, ablaţia ţintei cu un laser cu impulsuri, pentru a crea o coloană de material ejectat pe baza exploziei rapide a zonei de suprafaţă a ţintei datorită supraîncălzirii, depunerea pe o folie metalică, recoacerea termică rapidă în atmosferă de azot a probei rezultate şi utilizarea acesteia ca electrod pentru aplicaţii electrochimice şi testarea bateriilor.