Figure 3.

Electrochemical performances of symmetric Li|Li cells with AlN NW‐PP or PP separator at different conditions. a) 3 mA cm⁻², 3 mAh cm⁻². b) 20 mA cm⁻², 3 mAh cm⁻². c) 50 mA cm⁻², 25 mAh cm⁻². d) 80 mA cm⁻², 80 mAh cm⁻². Insets in (a–d) are the local magnifications.