fig3

Figure 3. Electrochemical performance of the integrated 3D electrode. (A and B) Rate capability (A) and corresponding charge-discharge profiles (B) of the 3D cathode at various rates from 0.05 C to 5.0 C (2.7-4.5 V). (C and D) Cycling stability of the 3D cathodes (C) and voltage profiles (D) at 0.2 C within a standard voltage window of 2.7-4.3 V. (E and F) Comparative cycling performance of the 3D and conventional cathodes (E) and voltage profiles of the 3D cathode (F) under an extended high-voltage window (2.7-4.5 V) at 0.2 C. All tests were conducted at 30 °C.