fig17
![A review of the energy storage aspects of chemical elements for lithium-ion based batteries](https://image.oaes.cc/fca7603e-34c6-490b-93fd-d564f3994d92/4450.fig.17.jpg)
Figure 17. (A) Rate and (B) cycling performance of NTO and NTO:Yb in a half cell. (C) Cycling performance of NTO:Ln and NTO (Ln = La, Er, Gd, Sm, Ce, Nd or Yb) at a current rate of 5 C with a cycle number of 1000 to 1500. Reproduced with permission from Ref.[224] (Copyright 2012, American Chemical Society). NTO: Na2Ti3O7.