An ultra-stable lithium plating process enabled by the nanoscale interphase of a macromolecular additive

Abstract

Lithium metal battery (LMB) is one of the most attractive candidates for next generation high energy density devices owing to the high specific capacity (3860 mAh/g) and low electrochemical potential...

Regulating Li-ion flux with a high-dielectric hybrid artificial SEI for stable Li metal anodes

“…18,24 Moreover, the stretching vibration of Si-O can be detected at around 1020 cm −1 . 25 The XPS results in Fig. 1e and Fig.…”

Advanced electrolyte systems with additives for high-cell-voltage and high-energy-density lithium batteries

“…[39][40][41] Generally, high-cell-voltage LBs have a voltage platform of over 4.7 V, which exceeds the decomposition voltage of traditional carbonate solvents of 4.4 V. [42][43][44][45] The electrolyte decomposition products can continue to deposit on the electrode surface, resulting in a signicant increase in impedance. [46][47][48] Fig. 2 lists the detailed composition of LB electrolytes and the side reactions that occur in the electrolyte including lithium salts and solvents at high voltage.…”

A Stretchable Ionic Conductive Elastomer for High‐Areal‐Capacity Lithium‐Metal Batteries

“…[14][15][16] Up till now, a string of methods is proposed to cope with these challenges, such as creating three-dimensional (3D) Li hosts to alleviate the uneven local current density, [17] substituting solid-state electrolyte for conventional liquid electrolytes to prevent lithium dendrite penetration, [18][19][20] introducing additives to the electrolyte to stabilize the solid electrolyte interface (SEI) films of the Li anodes, [16] constructing robust protective layers [21][22] to reduce the side reactions between the electrolyte and Li anodes, and so on. [23][24][25][26][27][28] Although these countermeasures suppress the formation/growth of the Li dendrites and reduce the side reactions between Li metal and liquid electrolytes, it remains challenging to realize the dendrite-free and high-efficiency Li depositions under high-areal-capacity conditions in conventional carbonate electrolytes, [29][30][31][32] which is one of the most critical and urgent challenges for the practical realization of Limetal batteries.…”