Structure and lithium deintercalation of Li2−xRuO3

Kobayashi, Hironori; Kanno, Ryoji; Kawamoto, Y.; Tabuchi, Mitsuharu; Nakamura, Osamu; Takano, Mikio

doi:10.1016/0167-2738(95)00135-s

Cited by 94 publications

(102 citation statements)

References 14 publications

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“…The phase transition behaviors accompanied with the initial charge for LMR and Li 2 RuO 3 have been reported. 17,22 Upon charging LMR to 4.2 V additional broad peaks appeared at around 2ª = 13.8°and 16.4°which could not be indexed with space group C2/m and C2/c adopted by the pristine LMR and Li 2 RuO 3 , respectively. When the LMR was charged to 4.8 V, distinct peak broadening was observed.…”

Section: Resultsmentioning

confidence: 99%

“…An oxidation peak at 4.25 V would be associated with simultaneous Li Electrochemistry, 83(12), 1071-1076 (2015) initial charge. Two distinct peaks at 3.65 V and 3.8 V are attributed to biphasic regions with the structural transitions 17 and a peak around 4.2 V is most likely associated with the oxidation of oxygen. 23 Moreover, a reduction peak appeared at 3.4 V and 3.3 V under a cutoff voltage of 4.2 V and 4.8 V, respectively, in the initial discharge.…”

Section: Resultsmentioning

confidence: 99%

“…1c), two plateaus were observed which corresponds to the transformation of the parent monoclinic phase via another monoclinic phase to a rhombohedral phase. 16,17 On further charging additional phase transitions also occur. 22 In the discharge process the phases evolved at 3.7 V, 4.0 V and 4.15 V in the initial charge did not appear in the XRD patterns between 4.8 V and 3.5 V (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, Li 2 RuO 3 exhibits complementary properties to Li 2 MnO 3 such as good cyclic capacity of about 160 mAh g ¹1 at a voltage range between 3.0 V and 4.0 V, and remarkably lower resistivity of 10 ³ cm. 16,17 Mechanistic studies for Li 2 Mn 1¹x Ru x O 3 , and related solid solutions of Li 2 RuO 3 have been also done.…”

Section: Introductionmentioning

confidence: 99%

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Relationship between Cyclic Properties and Charge-discharge Condition for Li2Mn0.4Ru0.6O3 and Li2RuO3

et al. 2015

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Capacity and voltage retentions upon subsequent cycles for Li 2 RuO 3 and Li 2 Mn 0.4 Ru 0.6 O 3 (LMR) under various cutoff voltages have been investigated. The change in average and local structures upon electrochemical cycling were examined by ex-situ XRD and Ru L 3 -edge XANES measurements, and the relationship between the cyclic capabilities and the structural changes is discussed. The deteriorations of discharge capacity and average discharge voltage in the subsequent cycles of LMR with a charge cut-off voltage of 4.8 V vs. Li/Li + are remarkably smaller than that with the voltage of 4.2 V. Moreover, LMR exhibits higher average discharge voltage than Li 2 RuO 3 under a charge cut-off voltage of 4.8 V. The phase transition behavior of LMR was not similar to Li 2 RuO 3 upon electrochemical cycling. Ru L 3 -edge XANES spectra measurements reveal that RuO 6 octahedra in LMR charged at 4.2 V are much distorted. The local structure of RuO 6 octahedra is associated with the cyclic capability of LMR and Li 2 RuO 3 .

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Relationship between Cyclic Properties and Charge-discharge Condition for Li2Mn0.4Ru0.6O3 and Li2RuO3

et al. 2015

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“…[40][41][42][43][44][45] However, their poor rate capability makes it difficult to consider lithium-rich layered rocksalts as viable candidates for the replacement of conventional layered rock salt cathodes (Li(Co,Ni,Mn)O 2 ). Figure 6 summarizes electrochemical properties and interfacial structures of a lithium-rich layered rocksalt Li 2 RuO 3 .…”

Section: Interfacial Reactions Of Layered Rocksalt Type Cathode Matermentioning

confidence: 99%

Interfacial Reactions of Intercalation Electrodes in Lithium Ion Batteries

Hirayama

2015

Electrochemistry

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Gaining a thorough understanding of the electrochemical interface in lithium ion batteries is essential for the development of a common strategy for the material design. This comprehensive paper presents the interfacial reaction analyses between intercalation electrodes and organic electrolytes using an epitaxial-film model electrode and in situ surface scattering techniques. The crystal structures of the intercalation electrodes drastically change in 10 nm-regions from the top of the electrode surface when soaked to the electrolyte and are reconstructed during the initial electrochemical reaction, which is accompanied with formation of a solid electrolyte interface layer. The reconstructed interfaces have a pronounced effect on the power characteristics and the stability at the subsequent electrochemical cycles.

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Anionic Redox Reaction in Li ‐Excess High‐Capacity Transition‐Metal Oxides

Yabuuchi¹

2022

Transition Metal Oxides for Electrochemical Energy Storage

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Structure and lithium deintercalation of Li2−xRuO3

Cited by 94 publications

References 14 publications

Relationship between Cyclic Properties and Charge-discharge Condition for Li<sub>2</sub>Mn<sub>0.4</sub>Ru<sub>0.6</sub>O<sub>3</sub> and Li<sub>2</sub>RuO<sub>3</sub>

Relationship between Cyclic Properties and Charge-discharge Condition for Li<sub>2</sub>Mn<sub>0.4</sub>Ru<sub>0.6</sub>O<sub>3</sub> and Li<sub>2</sub>RuO<sub>3</sub>

Interfacial Reactions of Intercalation Electrodes in Lithium Ion Batteries

Anionic Redox Reaction in Li ‐Excess High‐Capacity Transition‐Metal Oxides

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