An ultrahigh rate dendrite-free Zn metal deposition/striping enabled by silver nanowire aerogel with optimal atomic affinity with Zn

Recent advances and perspectives for Zn-based batteries: Zn anode and electrolyte

“…The electrolyte plays a key role in battery performance, including electrochemical reactions, rechargeability, operating voltage, and power density. The transport properties of Zn species and oxygen are related to the type and performance of electrolytes [93][94][95]. At all events, the development of electrolytes is a crucial issue in recent research on Zn-based batteries (Table 3).…”

Zincophilic Design and the Electrode/Electrolyte Interface for Aqueous Zinc‐Ion Batteries: A Review

“…DFT calculations have shown that the faceted and edge positions of Cu nanowires, in particular the latter, are strongly zincophilic and induce homogeneous nucleation and follow-up deposition of Zn. Huang et al [54] prepared a 3D lightweight silver nanowire aerogel (AgNWA) through a process of self-assembly to direct a homogeneous plating/stripping process (Figure 4d). The combination of DFT calculations and electric field simulations shows that the silver substrate has the best zinc adsorption energy with abundant zincophilic sites, and the 3D structure provides enough space for zinc deposition and reduces the expansion of the zinc anode.…”

“…DFT calculations have shown that the faceted and edge positions of Cu nanowires, in particular the latter, are strongly zincophilic and induce homogeneous nucleation and follow‐up deposition of Zn. Huang et al [54] . prepared a 3D lightweight silver nanowire aerogel (AgNWA) through a process of self‐assembly to direct a homogeneous plating/stripping process (Figure 4d).…”

High-density cathode structure of independently acting Prussian-blue-analog nanoparticles: a high-power Zn–Na-ion battery discharging ∼200 mA cm−2 at 1000C

“…Considering that dendrites are accumulated during repeated charge/discharge cycles, their growth was surprisingly suppressed on the commercial Zn foil even aer the 150 000 cycles, implying that uniform electric elds were maintained between the Zn anode and cathode. 11,12,60 Mechanism of ultrafast Na + insertion/desertion Batteries are known for their characteristically specic charge/ discharge plateaus that maintain high operating voltages. Nevertheless, at high C rates and/or reduced dimensions of NPs, batteries can exhibit non-faradaic behavior similar to capacitors, becoming pseudocapacitors.…”

“…1,2,9,10 C rates are the same measures as discharge currents (A g −1 ) to conveniently evaluate the power densities of electrodes without considering loading amounts. Although the practical current density values are changed by the cooperative C-rate capabilities of cathodes and anodes, 11,12 they have been less regarded even in basic studies 13 owing to the ratedetermining sluggish kinetics of conventional binder-used cathodes and a considerable deterioration in capabilities with the deceleration of the redox reactions.…”