Fig. 3: Superstructure units characterization. | Nature Communications

Fig. 3: Superstructure units characterization.

From: Tailoring superstructure units for improved oxygen redox activity in Li-rich layered oxide battery’s positive electrodes

Fig. 3

a 6Li NMR spectra and fitting results of N28, N32, N36, and N40 powders. NMR fitting was performed with the DMFIT program. b In-plane ordering of Li (gray) and Mn (purple octahedra) or Ni (blue octahedra) within TM layers forming LiMn6 and LiNiMn5 superstructure units. c Ratio of LiNiMN5/(LiNiMn5 + LiMn6). The error bars in c correspond to the s.d. of three independent fitting procedures. Data are given as average ± s.d. Normalized XAS (d) Ni and (e) Mn K-edge XANES of N28, N32, N36, and N40 electrodes. The XAS data are collected in transmission mode.

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