金属离子电池中的磁共振：从核磁共振(NMR)到电子顺磁共振(EPR)

胡炳文, 李超, 耿福山, 沈明

Magnetic Resonance in Metal-Ion Batteries: From NMR (Nuclear Magnetic Resonance) to EPR (Electron Paramagnetic Resonance)

Bing-Wen Hu, Chao Li, Fu-Shan Geng, Ming Shen

Figure 2. In-situ EPR spectra of the NaCrO2/Na cell cycled at 10 mA·g-1 between (A) 2.2 ~ 3.6 V and (C) 2.2 ~ 4.5 V. The intensive Na signal in the range of 331 ~ 335 mT is truncated for clarity. (B, D) Corresponding voltage profiles (top) and EPR intensities (bottom) as a function of time. EPR intensities are calculated using half of the peak-to-peak intensity. (Reproduced from Ref.[21] with permission from American Chemical Society) (color on line)