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Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2

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Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2. / Luo, Kun; Roberts, Matthew R.; Guerrini, Niccoló et al.
In: Journal of the American Chemical Society, Vol. 138, No. 35, 07.09.2016, p. 11211-11218.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Luo, K, Roberts, MR, Guerrini, N, Tapia-Ruiz, N, Hao, R, Massel, F, Pickup, DM, Ramos, S, Liu, Y-S, Guo, J, Chadwick, AV, Duda, LC & Bruce, PG 2016, 'Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2', Journal of the American Chemical Society, vol. 138, no. 35, pp. 11211-11218. https://doi.org/10.1021/jacs.6b05111

APA

Luo, K., Roberts, M. R., Guerrini, N., Tapia-Ruiz, N., Hao, R., Massel, F., Pickup, D. M., Ramos, S., Liu, Y-S., Guo, J., Chadwick, A. V., Duda, L. C., & Bruce, P. G. (2016). Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2. Journal of the American Chemical Society, 138(35), 11211-11218. https://doi.org/10.1021/jacs.6b05111

Vancouver

Luo K, Roberts MR, Guerrini N, Tapia-Ruiz N, Hao R, Massel F et al. Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2. Journal of the American Chemical Society. 2016 Sept 7;138(35):11211-11218. doi: 10.1021/jacs.6b05111

Author

Luo, Kun ; Roberts, Matthew R. ; Guerrini, Niccoló et al. / Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2. In: Journal of the American Chemical Society. 2016 ; Vol. 138, No. 35. pp. 11211-11218.

Bibtex

@article{8061ccb68404424ab037c0b4212bb66d,
title = "Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2",
abstract = "Conventional intercalation cathodes for lithium batteries store charge in redox reactions associated with the transition metal cations, e.g. Mn 3+/4+ in LiMn 2 O 4 , and this limits the energy storage of Li-ion batteries. Compounds such as Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2 exhibit a capacity to store charge in excess of the transition metal redox reactions. The additional capacity occurs at and above 4.5 V vs. Li + /Li. The capacity at 4.5 V is dominated by oxidation of the O 2-anions accounting for ~0.43 e -/formula unit, with an additional 0.06 e -/formula unit being associated with O loss from the lattice. In contrast, the capacity above 4.5 V, is mainly O loss, ~ 0.08 e -/formula. The O redox reaction involves the formation of localized hole states on O during charge, which are located on O coordinated by (Mn 4+ /Li +). The results have been obtained by combining operando electrochemical mass spec on 18 O labelled Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2 with XANES, soft X-ray spectroscopy, Resonant Inelastic X-ray spectroscopy and Raman spectroscopy. Finally the general features of O-redox are described with discussion about the role of comparatively ionic (less covalent) 3d metal-oxygen interaction on anion redox in lithium rich cathode materials.",
author = "Kun Luo and Roberts, {Matthew R.} and Niccol{\'o} Guerrini and Nuria Tapia-Ruiz and Rong Hao and Felix Massel and Pickup, {David M} and Silvia Ramos and Yi-Sheng Liu and Jinghua Guo and Chadwick, {Alan V.} and Duda, {Laurent C.} and Bruce, {Peter G.}",
year = "2016",
month = sep,
day = "7",
doi = "10.1021/jacs.6b05111",
language = "English",
volume = "138",
pages = "11211--11218",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "AMER CHEMICAL SOC",
number = "35",

}

RIS

TY - JOUR

T1 - Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2

AU - Luo, Kun

AU - Roberts, Matthew R.

AU - Guerrini, Niccoló

AU - Tapia-Ruiz, Nuria

AU - Hao, Rong

AU - Massel, Felix

AU - Pickup, David M

AU - Ramos, Silvia

AU - Liu, Yi-Sheng

AU - Guo, Jinghua

AU - Chadwick, Alan V.

AU - Duda, Laurent C.

AU - Bruce, Peter G.

PY - 2016/9/7

Y1 - 2016/9/7

N2 - Conventional intercalation cathodes for lithium batteries store charge in redox reactions associated with the transition metal cations, e.g. Mn 3+/4+ in LiMn 2 O 4 , and this limits the energy storage of Li-ion batteries. Compounds such as Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2 exhibit a capacity to store charge in excess of the transition metal redox reactions. The additional capacity occurs at and above 4.5 V vs. Li + /Li. The capacity at 4.5 V is dominated by oxidation of the O 2-anions accounting for ~0.43 e -/formula unit, with an additional 0.06 e -/formula unit being associated with O loss from the lattice. In contrast, the capacity above 4.5 V, is mainly O loss, ~ 0.08 e -/formula. The O redox reaction involves the formation of localized hole states on O during charge, which are located on O coordinated by (Mn 4+ /Li +). The results have been obtained by combining operando electrochemical mass spec on 18 O labelled Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2 with XANES, soft X-ray spectroscopy, Resonant Inelastic X-ray spectroscopy and Raman spectroscopy. Finally the general features of O-redox are described with discussion about the role of comparatively ionic (less covalent) 3d metal-oxygen interaction on anion redox in lithium rich cathode materials.

AB - Conventional intercalation cathodes for lithium batteries store charge in redox reactions associated with the transition metal cations, e.g. Mn 3+/4+ in LiMn 2 O 4 , and this limits the energy storage of Li-ion batteries. Compounds such as Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2 exhibit a capacity to store charge in excess of the transition metal redox reactions. The additional capacity occurs at and above 4.5 V vs. Li + /Li. The capacity at 4.5 V is dominated by oxidation of the O 2-anions accounting for ~0.43 e -/formula unit, with an additional 0.06 e -/formula unit being associated with O loss from the lattice. In contrast, the capacity above 4.5 V, is mainly O loss, ~ 0.08 e -/formula. The O redox reaction involves the formation of localized hole states on O during charge, which are located on O coordinated by (Mn 4+ /Li +). The results have been obtained by combining operando electrochemical mass spec on 18 O labelled Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2 with XANES, soft X-ray spectroscopy, Resonant Inelastic X-ray spectroscopy and Raman spectroscopy. Finally the general features of O-redox are described with discussion about the role of comparatively ionic (less covalent) 3d metal-oxygen interaction on anion redox in lithium rich cathode materials.

U2 - 10.1021/jacs.6b05111

DO - 10.1021/jacs.6b05111

M3 - Journal article

C2 - 27498756

VL - 138

SP - 11211

EP - 11218

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 35

ER -