Structural changes in a commercial lithium-ion battery during electrochemical cycling: An in situ neutron diffraction study

Sharma, Neeraj; Peterson, Vanessa K.; Elcombe, Margaret M.; Avdeev, Maxim; Studer, Andrew J.; Blagojevic, N.; Yusoff, Rozila; Kamarulzaman, Norlıda

doi:10.1016/j.jpowsour.2010.06.114

Cited by 169 publications

(129 citation statements)

References 51 publications

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“…The behaviour of the c lattice parameter of the CGR and NCR cathodes is relatively consistent with that of the isostructural LiCoO 2 material. 8,33,34 The exception is the single-phase transition of the NCR and CGR cathodes compared with the small two-phase region of the LiCoO 2 material, composed of lithium-rich and lithium-poor phases, 35 exhibited throughout charge-discharge. Table I.…”

Section: Resultsmentioning

confidence: 99%

Structural evolution of electrodes in the NCR and CGR cathode-containing commercial lithium-ion batteries cycled between 3.0 and 4.5 V: An operando neutron powder-diffraction study

et al. 2014

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. Structural evolution of electrodes in the NCR and CGR cathode-containing commercial lithium-ion batteries cycled between 3.0 and 4.5 V: an operando neutron powder-diffraction study. Journal of Materials Research, 30 (3), 373-380. Structural evolution of electrodes in the NCR and CGR cathodecontaining commercial lithium-ion batteries cycled between 3.0 and 4.5 V: an operando neutron powder-diffraction study AbstractThe dissimilar lattice-evolution of the isostructural layered Li(Ni,Co,Al)O 2 (NCR) and Li(Ni,Co,Mn)O 2 (CGR) cathodes in commercial lithium-ion batteries during overcharging/discharging was examined using operando neutron powder-diffraction. The stacking axis (c parameter) of both cathodes expands on initial lithiation and contracts on further lithiation. Although both the initial increase and later decrease are smaller for the CGR cathode, the overall change between battery charged and discharged states of the c parameter is larger for the CGR (1.29%) than for the NCR cathode (0.33%). We find these differences are correlated to the transition metal to oxygen bond (as measured through the oxygen positional-parameter) which is specific to the different cathode chemistries. Finally, we note the formation of and suggest a model for a LiC x intermediate between graphite and LiC 12 in the anode of both batteries. The dissimilar lattice-evolution of the iso-structural layered Li(Ni,Co,Al)O 2 (NCR) and Li(Ni , Co , Mn , )O 2 (CGR) cathodes in commercial lithium-ion batteries during overcharging/discharging was examined using operando neutron powder-diffraction. The stacking axis (c parameter) of both cathodes expands on initial lithiation and contracts on further lithiation. Although both the initial increase and later decrease are smaller for the CGR cathode, the overall change between battery charged and discharged states of the c parameter is larger for the CGR (1.29%) than for the NCR cathode (0.33%). We find these differences are correlated to the transition metal to oxygen bond (as measured through the oxygen positional-parameter) which is specific to the different cathode chemistries. Finally, we note the formation and suggest a model for a LiC x intermediate between graphite and LiC 12 in the anode of both batteries.

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Section: Resultsmentioning

confidence: 99%

Structural evolution of electrodes in the NCR and CGR cathode-containing commercial lithium-ion batteries cycled between 3.0 and 4.5 V: An operando neutron powder-diffraction study

et al. 2014

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“…Previous in-situ studies of LiCoO2 using commercial batteries by Sharma et al [45] showed that both forms of LiCoO2; the hexagonal one and the spinel-like phase [46][47][48][49][50][51][52], undergo a series of phase transitions during cycling, and it was proposed that the gradual build-up of the spinel-type phase might be a contributing factor to the observed capacity fade within LixCoO2 based batteries. Rodriguez et al [53] determined the variations in the lattice parameters of a LiCoO2-type material as a function of charge state, also in a commercial Liion cell, whilst changes in both the lattice parameters and lithium occupancies with repeated cell cycling were shown to be correlated with the degradation of cell performance [54].…”

Section: In-situ Structural Changes Of Licoo2mentioning

confidence: 99%

In-Situ Neutron Studies of Electrodes for Li-Ion Batteries Using a Deuterated Electrolyte: LiCoO₂as a Case Study

Dong

Biendicho

Hull

et al. 2018

J. Electrochem. Soc.

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Abstract.An electrochemical cell for in-situ neutron powder diffraction studies of electrode materials for lithium-ion batteries is presented. The device has a coin cell geometry, consisting of 8.4 cm diameter, circular components that can be stacked together and clamped tight using sixteen polyetheretherketone (PEEK) screws. The background issue associated with incoherent scattering from hydrogen within the organic electrolyte was addressed by replacing the normal electrolyte with a deuterated analogue, significantly improving the peak-to-background ratio of the in-situ neutron data. Initial in-situ studies showed clear structural evolution within LixCoO2 during charge in a half-cell with lithium metal as the counter electrode, in agreement with previous studies. In addition, the in-situ cell was shown to provide electrochemical performance comparable to that of equivalent coin cells of the commercial design and, following these demonstration studies, is available for in-situ structural studies of other lithium cathode and anode materials during charge/discharge cycling. 2 1. Introduction.

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“…Consequently, a relatively high amount of electrode material is necessary for a proper measurement, which can be challenging for laboratoryscale batteries [90,91]. However, due to this large penetration depth of the neutrons, measurements can be performed on unmodified commercial cells and diffraction patterns of the anode and cathode can be obtained simultaneously [92]. These batteries, however, are not optimized for in situ neutron diffraction.…”

Section: Neutron Diffractionmentioning

confidence: 99%

In situ methods for Li-ion battery research: A review of recent developments

Harks

Mulder

Notten

2015

Journal of Power Sources

325

243

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Structural changes in a commercial lithium-ion battery during electrochemical cycling: An in situ neutron diffraction study

Cited by 169 publications

References 51 publications

Structural evolution of electrodes in the NCR and CGR cathode-containing commercial lithium-ion batteries cycled between 3.0 and 4.5 V: An operando neutron powder-diffraction study

Structural evolution of electrodes in the NCR and CGR cathode-containing commercial lithium-ion batteries cycled between 3.0 and 4.5 V: An operando neutron powder-diffraction study

In-Situ Neutron Studies of Electrodes for Li-Ion Batteries Using a Deuterated Electrolyte: LiCoO₂as a Case Study

In situ methods for Li-ion battery research: A review of recent developments

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Structural changes in a commercial lithium-ion battery during electrochemical cycling: An in situ neutron diffraction study

Cited by 169 publications

References 51 publications

Structural evolution of electrodes in the NCR and CGR cathode-containing commercial lithium-ion batteries cycled between 3.0 and 4.5 V: An operando neutron powder-diffraction study

Structural evolution of electrodes in the NCR and CGR cathode-containing commercial lithium-ion batteries cycled between 3.0 and 4.5 V: An operando neutron powder-diffraction study

In-Situ Neutron Studies of Electrodes for Li-Ion Batteries Using a Deuterated Electrolyte: LiCoO2as a Case Study

In situ methods for Li-ion battery research: A review of recent developments

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In-Situ Neutron Studies of Electrodes for Li-Ion Batteries Using a Deuterated Electrolyte: LiCoO₂as a Case Study