Non-flammable phosphate-ester-based electrolyte with high concentration for high safety potassium-based anode-free dual ion battery - Ge Zhang; Sunfa Wang; Kanghou Ma; Caiyue Sun; Chen Wang; Fangshuo Zhou; Xinyue Zhao; Xiqiang Huang; Zhiguo Liu; Ningning Wu; Yaohui Zhang (Chemical Engineering Journal, 2025)