Slow‐Moving Phase Boundary in Li4/3+xTi5/3O4 (Small Methods 10/2021). Issue 10 (28th October 2021)

• Record Type: Journal Article
• Authors: Joshi, Yug; Lawitzki, Robert; Schmitz, Guido
• Is Part Of: Small methods. Volume 5:Issue 10(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-10-28
• Subjects: diffusion -- electrochromic imaging -- Li 4Ti 5O 12 -- linear to parabolic transitions -- phase transformation; Nanotechnology -- Methodology -- Periodicals; Nanotechnology -- Periodicals; Periodicals; 620.5028
• DOI: 10.1002/smtd.202170051
• Languages: English
• ISSNs: 2366-9608

Abstract

Abstract : Inside Back Cover In article number 2100532, Joshi and co‐workers developed a methodology to study lithium transport using optical microscopy. It unravels temperature dependent diffusion and barrier coefficients for the two phases and the phase boundary. Electrode‐size dependent, slow/linear migration of the phase boundary, in the initial stages of lithiation, is observed. It is postulated that such migration is controlled by the concentration gradient in the Li4/3+δ Ti5/3 O4 phase formed ahead of the phase boundary.