Singh, H.
, Topsakal, M.
, Attenkofer, K.
, Wolf, T.
, Leskes, M.
, Duan, Y.
, Wang, F.
, Vinson, J.
, Lu, D.
and Frenkel, A.
(2018),
Identification of dopant site and its effect on electrochemical activity in Mn-doped Lithium Titanate, Physical Review Materials, [online], https://doi.org/10.1103/PhysRevMaterials.2.125403, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=926480
(Accessed December 5, 2024)
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Identification of dopant site and its effect on electrochemical activity in Mn-doped Lithium Titanate
Published
Author(s)
Harischchandra Singh, Mehmet Topsakal, Klaus Attenkofer, Tamar Wolf, Michal Leskes, Yandong Duan, Feng Wang, , Deyu Lu, Anatoly Frenkel
Abstract
We observed significant battery rate performance drop of nearly 20% in 1% Mn doped Lithium Titanate (LTO) compared to the pristine LTO. Using a combination of the X-ray absorption near edge structure experiment with theoretical modeling we demonstrated that the dopant Mn+2 ions reside on tetrahedral (8a) sites. As a result, Li migration through the LTO lattice during the battery charge- discharge process is impeded, which explains the decrease in electrochemical performance of the Mn doped LTO.Citation
Physical Review Materials
Volume
2
Pub Type
Journals
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Created December 19, 2018, Updated October 12, 2021