Surface engineering of commercial Ni foams for stable Li metal anodes

Interface issues of lithium metal anode for high‐energy batteries: Challenges, strategies, and perspectives

“…Till now, there are plenty of strategies proposed to address this issue, which generally can be classified into the following several categories: (a) design artificial SEI layers; 20,21 (b) construct 3D conductive current collectors; 22,23 (c) optimize electrolytes; 24,25 (d) employ SSEs; 26 and (e) modify separators 27,28 . In this section, we will discuss these strategies concretely.…”

Controlled Growth of Li Dendrite Induced by Periodic Ni Mesh for Ultrastable Lithium Metal Battery

“…Additionally, nucleation overpotential (η n ) and plateau overpotential (η p ) are both significant parameters, being separately defined as the voltage difference between the lowest value during Li plating process and the stable voltage platform, and the difference between 0 V baseline and voltage plateau. [10,39] Generally, a smaller value of η n indicates that the heterogeneous nucleation barrier is lower. [36] Before the test, all the half cells had been run for five cycles at a current density of 0.05 mA cm −2 between 0 and 1 V. Such prelithiation step aimed to activate the cells, remove the surface impurities, and stabilize the solid-liquid interface.…”

Ag-modified hydrogen titanate nanowire arrays for stable lithium metal anode in a carbonate-based electrolyte

“…Therefore, layered reduced graphene oxide [16], nickel foam [17], copper foam [18], and vapor grown carbon fiber (VGCF) matrices have been proven to improve the stability of Li metal anodes, even at ultrahigh capacity and ultrahigh rate conditions [19]. Although a conductive substrate can enhance the cycle stability of Li metal batteries, most previous studies in this field are based on ether electrolytes [20][21][22][23]. The electrochemical performance of Li metal in ether electrolytes is better than that of commercial ester electrolytes; this is because, in the case of Li metal in ether electrolytes, a polymer film is formed on the surface of the metal.…”