Portal de Periódicos da CAPES

Nitridation-Driven Conductive Li 4 Ti 5 O 12 for Lithium Ion Batteries

2008; American Chemical Society; Volume: 130; Issue: 45 Linguagem: Inglês

10.1021/ja806104n

1943-2984

Kyusung Park, Anass Benayad, Dae Joon Kang, Seok-Gwang Doo,

MXene and MAX Phase Materials

To modify oxide structure and introduce a thin conductive film on Li4Ti5O12, thermal nitridation was adopted for the first time. NH3 decomposes surface Li4Ti5O12 to conductive TiN at high temperature, and surprisingly, it also modifies the surface structure in a way to accommodate the single phase Li insertion and extraction. The electrochemically induced Li4+deltaTi5O12 with a TiN coating layer shows great electrochemical properties at high current densities.