Boosting interfacial kinetics in extremely fast rechargeable Li-ion batteries with linear carbonate-based, LiPF6-concentrated electrolyte

•DMC-based LPCE makes more weaker solvation structure than other linear carbonates.•DMC-based LPCE facilitates Li+ desolvation by reducing charge-transfer resistance.•FEC enabled the formation of a less resistive and thin SEI.•3DMC+F outperforms EC-based electrolyte at 6 C-rate without Li plating on graphite.•Weaker solvation with compact SEI is crucial for XFC cycling without Li plating.