Achieving Superior Energy Storage Performance in KNN-Based Ceramics Under Moderate Electric Fields via Tailoring K/Na Ratio.
K0.5Na0.5NbO3 (KNN)-based ceramics are promising lead-free candidates for energy storage applications, yet improving their energy storage performance remains a significant challenge. Here, we propose tailoring K/Na ratio to achieve a synergistic integration of relaxor, grain, and band engineering in the 0.94KxNa1- xNbO...