ELECTROCHEMICAL BEHAVIOR OF Er-DOPED LITHIUM TITANATE IN WIDE POTENTIAL RANGE

P. V. Kornev; Корнев П. В.; T. L. Kulova; Кулова Т. Л.; A. A. Kuz’mina; Кузьмина А. А.; A. M. Skundin; Скундин А. М.; E. V. Chirkova; Чиркова Е. В.; E. S. Koshel’; Кошель Е. С.; V. M. Klimova; Климова В. М.

doi:10.31857/S0424857023110099

ELECTROCHEMICAL BEHAVIOR OF Er-DOPED LITHIUM TITANATE IN WIDE POTENTIAL RANGE

Authors: Kornev P.V.¹^,2, Kulova T.L.¹, Kuz’mina A.A.¹, Skundin A.M.¹, Chirkova E.V.¹, Koshel’ E.S.³, Klimova V.M.⁴
Affiliations:
1. Frumkin Institute of Physical Chemistry and Electrochemistr
2. JSC. "The Gulidov Krasnoyarsk Non-Ferrous Metals Plant"
3. Kurnakov Institute of General and Inorganic Chemistry
4. АО Joint-stock company "Advanced Research Institute of Inorganic Materials named after Academician A. A. Bochvar"
Issue: Vol 59, No 11 (2023)
Pages: 726-734
Section: Articles
URL: https://journals.rcsi.science/0424-8570/article/view/232672
DOI: https://doi.org/10.31857/S0424857023110099
EDN: https://elibrary.ru/TKFUPQ
ID: 232672

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Abstract
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Abstract

The effect of lithium titanate doping by erbium on reversible lithium insertion in a widened potential range (3.00 to 0.01 V vs Li/Li+) was studied for the first time. Er-doped lithium titanate was manufactured with high-temperature solid-state synthesis. Er-doping (as doping with other lanthanides) was found to allow rather stable cycling in a wide potential range, discharge capacity being depended on the dopant content and is maximal at 2% Er. Upon discharge at 12 C the specific capacity amounted to 71 mAh/g, which is higher than that for other rare-earth dopants.

Keywords

lithium-ion battery, anode, lithium titanate, erbium, doping.

About the authors

P. V. Kornev

Frumkin Institute of Physical Chemistry and Electrochemistr; JSC. "The Gulidov Krasnoyarsk Non-Ferrous Metals Plant"

Email: pas-kornev@rambler.ru

31, Leninskii Prospect, build. 4, 119071 Moscow, Russia; 1, Transportnyy proyezd, 660123 Krasnoyarsk, Russia

Россия, 119071, Москва, Ленинский просп., 31, корп. 4; Россия, 660123, Красноярск, Транспортный проезд, 1г

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