Recent advances in the study of layered lithium transition metal oxides and their application as intercalation electrodes

Alcántara, Ricardo; Lavela, Pedro; Tirado, J.L.; Zhecheva, E.; Stoyanova, Radostina

doi:10.1007/s100080050138

Cited by 49 publications

(63 citation statements)

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“…Ohzuku reported novel LiMn 1/3 Ni 1/3 Co 1/3 O 2 which was investigated further [20]. Significant contributions were made in improving the layered two-dimensional materials by the Ohzuku, Dahn, Kanno, Zhecheva and Stoyanova groups [21,22]. Stoyanova et al reported the effect of manganese substitution for cobalt in solid solution (LiCoO 2 -LiMnO 2 ), which led to the development of composite-type cathodes [23].…”

Section: Introductionmentioning

confidence: 99%

Optimization and Characterization of Lithium Ion Cathode Materials in the System (1 – x – y)LiNi0.8Co0.2O2 • xLi2MnO3 • yLiCoO2

2010

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Abstract:There is ongoing effort to identify novel materials that have performance better than LiCoO 2 . The objective of this work is to explore materials in the system (1 -x -y) LiNi 0.8 Co 0.2 O 2 • xLi 2 MnO 3 • yLiCoO 2 . A ternary composition diagram was used to identify sample points, and compositions for testing were initially chosen. Detailed characterization of the synthesized materials was done, including Rietveld Refinement of XRD data, XPS analysis for valence state of transition-metals, SEM for microstructure details, and TGA for thermal stability of the materials. Electrochemical performance showed that discharge capacities on the order of 230 mAh/g were obtained. Preliminary results showed that these materials exhibit good cycling capabilities thereby positioning these materials as promising for Li-ion battery applications.

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Section: Introductionmentioning

confidence: 99%

Optimization and Characterization of Lithium Ion Cathode Materials in the System (1 – x – y)LiNi0.8Co0.2O2 • xLi2MnO3 • yLiCoO2

2010

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“…The interlayer expansion is usually below 0.5 Å for Li extraction, but is close to 1.5 Å for Na + deintercalation, in part due to the larger ionic radius of Na + (1.02 Å) vs. Li + (0.76 Å), but also due to the different sites occupied by these ions. Large structural expansions induce strain between domains with different degrees of intercalation in the crystal structure, resulting in cracks, particle fragmentation, 35 and amorphization after repeated cycling. 36 Large expansion coefficients along c may also contribute to the staging often observed at small x values (low intercalation), wherein the guest cations are unevenly distributed among the interlayer spacings.…”

Section: Manganese-based Sodium Transition Metal Oxide Cathode Materimentioning

confidence: 99%

Review—Manganese-Based P2-Type Transition Metal Oxides as Sodium-Ion Battery Cathode Materials

Clément

Bruce

Grey

2015

J. Electrochem. Soc.

438

388

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Sodium transition metal oxides (NaMO 2 ) with a P2 structure exhibit good Na + ion conductivity and are promising sodium-ion battery cathode materials. Manganese-based compounds have a high working potential vs. Na + /Na, and high capacity. Yet, the layered nature of these materials means that they are prone to structural rearrangements at high voltage/low Na contents, the phase transformations and Na + ion/vacancy ordering transitions resulting in capacity fade and poor reversibility. This review discusses the latest advances in the field and focuses mainly on recent work on Na y Mn 1-x M x O 2 (x, y ≤ 1, M = Ni, Mg, Li) compounds. We compare the different lithium and sodium transition metal layered oxides (P2, O3, etc.) and describe the structures and mechanisms observed on alkali (de)intercalation. The strategies used to enhance the electrochemical properties and stabilize the structural framework of sodium transition metal oxides are reviewed. We show how X-ray diffraction and 7 Li/ 23 Na solid-state Nuclear Magnetic Resonance can be combined to provide a detailed insight into the structural and electronic processes occurring upon electrochemical cycling of these materials. Why Are We Interested in Na-Ion Battery Cathodes?Together, the increasing demand for energy and the threat from Global Warming make electrical energy storage (EES) a world wide strategic priority. EES is expected to play a key role in the decarbonization of electric power sources. The two billion people worldwide not currently served by a reliable electricity supply are likely to be connected via local grids, for which EES is essential. While Li-ion batteries (LIBs) will play a role, a key challenge is to develop lower cost batteries that deliver safe, reliable storage with high cycle and calendar life. In this regard, Na-ion batteries (NIBs) are potentially important. NIBs operate in a similar fashion to LIBs, offering both advantages and disadvantages. Concerning the former, the ability to use Al instead of Cu as a current collector at the anode could substantially reduce cost. Na is also far more abundant in the Earth's crust than Li, and more widely distributed geographically. Regarding the disadvantages, the standard operating potential of Na metal is 300 mV more positive than Li metal. This generally translates into lower operating potentials for Na-ion systems, although the potential of a full cell depends on the difference in the chemical potentials of Na in the anode and cathode materials. There are considerable opportunities for scientists to develop new combinations of anode, electrolyte and cathode that are optimized for a variety of applications with different criteria such as high energy density, high power, and high operating potential. This has encouraged a rapid growth of interest in research into NIB components. Hard carbons show some promise as anodes, [1][2][3] but more must be done to improve performance. The cathode remains a major challenge and it is to this that we direct the current review. A comparative plot sho...

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“…Lithium cobalt oxide (LiCoO 2 ) and related compounds are the most widely-used options as cathode materials for commercial lithium-ion batteries [1][2][3][4]. Cobalt substitution and particle surface treatments have been previously used to control the electrochemical properties of this layered-type oxide.…”

Section: Introductionmentioning

confidence: 99%

Rotor blade grinding and re-annealing of LiCoO2: SEM, XPS, EIS and electrochemical study

Alcántara

Ortiz

Lavela

et al. 2005

Journal of Electroanalytical Chemistry

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Recent advances in the study of layered lithium transition metal oxides and their application as intercalation electrodes

Cited by 49 publications

References 0 publications

Optimization and Characterization of Lithium Ion Cathode Materials in the System (1 – x – y)LiNi0.8Co0.2O2 • xLi2MnO3 • yLiCoO2

Optimization and Characterization of Lithium Ion Cathode Materials in the System (1 – x – y)LiNi0.8Co0.2O2 • xLi2MnO3 • yLiCoO2

Review—Manganese-Based P2-Type Transition Metal Oxides as Sodium-Ion Battery Cathode Materials

Rotor blade grinding and re-annealing of LiCoO2: SEM, XPS, EIS and electrochemical study

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