Figure 2
From: Characterization of thermally aged AlPO4-coated LiCoO2 thin films
The electrochemical properties of pristine and AlPO 4 -coated LiCoO 2 thin films. The films were measured in the voltage range of 4.25 to 3.0V. (a) Discharge capacities of the films at current densities of 0.2, 0.4, and 0.6 mA·cm-2. Initial discharge profiles of (b) pristine and (c) AlPO4-coated films (the first cycle of Figure 2a at each current density). (d) Cyclic performances of the films at 45°C (current density was 0.4 mA·cm-2).