Journal: Nature materials

Article Title: Electrochemomechanical failure in layered oxide cathodes caused by rotational stacking faults.

doi: 10.1038/s41563-024-01899-9

Figure Lengend Snippet: Fig. 3 | Thermal effects to annihilate RSFs. a, In situ heating XRD results of Na5/6(Li0.25Ni0.05Mn0.7)O2 in the 750.0–1,000.0 °C range in 12.5 °C increments. The asterisks in the graph indicate peaks of impurities that decompose at high temperatures (above 950 °C). The dotted box highlights how the superstructure patterns change as the material is heated. b,c, Comparison of (002) diffraction patterns (b) and their FWHM changes (c) for P2–Na5/6(Li0.25Ni0.05Mn0.7)O2 and O2–Lix(Li0.25Ni0.05Mn0.7)O2 electrodes synthesized at different temperatures. A wavelength of λ = 1.5406 Å was used for the measurements. d, Superstructure patterns of pristine O2–Lix(Li0.25Ni0.05Mn0.7)O2 electrodes synthesized at 750,

Article Snippet: The diffraction patterns of the pristine P2/O2 materials and O2 electrodes were analysed using XRD (D2 PHASER and D8 ADVANCE, Bruker) with Cu Kα radiation (λ = 1.5406 Å) in the 2θ range of 10–70°.

Techniques: In Situ, Comparison, Synthesized

Journal: Nature materials

Article Title: Electrochemomechanical failure in layered oxide cathodes caused by rotational stacking faults.

doi: 10.1038/s41563-024-01899-9

Figure Lengend Snippet: Fig. 4 | Suppression of electrochemomechanical degradation through thermal annihilation. a,b, Average crack volume ratio for each voltage in the 10th electrochemical profiles of O2–Lix(Li0.25Ni0.05Mn0.7)O2 electrodes synthesized at 850 °C (a) and 950 °C (b). The box plot in each figure represents the average value of the crack volume fraction along with the standard deviation (±) for five particles (n = 5) at each voltage. Representative three-dimensional rendered particles of each voltage are shown together in the right panel of each figure. The remaining rendered particles are displayed in Supplementary

Article Snippet: The diffraction patterns of the pristine P2/O2 materials and O2 electrodes were analysed using XRD (D2 PHASER and D8 ADVANCE, Bruker) with Cu Kα radiation (λ = 1.5406 Å) in the 2θ range of 10–70°.

Techniques: Synthesized, Standard Deviation