TiO2nanotubes in lithium-ion batteries
Paper i proceeding, 2020

In this contribution we report on electrochemical approaches in TiO2 based electrodes synthesis. TiO2 nanotubes (NTs) were synthesized following a facile anodization of titanium sheets. Optimizing the experimental conditions two electrodes with NTs lengths of ∼10 μm (Long) and ∼2 μm (Short), were obtained. At the end of the anodization the amorphous TiO2 (a-TiO2) was thermally treated to promote the conversion in the anatase crystal phase (c-TiO2). Both the Long and Short NTs electrodes were tested for their applications as anodes in lithium-ion batteries (LIBs). A preliminary comparison was performed to evaluate the role of a-TiO2 and c-TiO2 phases. Here, Short a-TiO2 NTs exhibited a fast storage rate respect to Short c-TiO2. Comparing the NTs length, Long a-TiO2 electrodes exhibited the highest specific capacity, close to the theoretical value. Furthermore, all the electrodes tested showed an excellent capacity retention proceeding with Discharge/Charge cycles.

Författare

Antonio Rubino

Sapienza, Università di Roma

Marco Agostini

Chalmers, Fysik, Materialfysik

Pier Giorgio Schiavi

Sapienza, Università di Roma

Pietro Altimari

Sapienza, Università di Roma

Francesca Pagnanelli

Sapienza, Università di Roma

AIP Conference Proceedings

0094-243X (ISSN) 1551-7616 (eISSN)

Vol. 2257 020006

4th NanoInnovation 2019 - Conference and Exhibition
Rome, Italy,

Ämneskategorier

Oorganisk kemi

Materialkemi

Annan kemiteknik

DOI

10.1063/5.0023681

Mer information

Senast uppdaterat

2020-12-28