Abstract Rechargeable aqueous zinc‐ion batteries have been considered as a promising candidate for next‐generation batteries. However, the formation of zinc dendrites are most severe problems limiting their practical applications. To develop stable metal anodes, synergistic method is presented that combines Cu‐Zn solid solution interface on copper mesh skeleton with good affinity and polyacrylamide electrolyte additive to modify anode, which can greatly reduce overpotential nucleation...

Abstract Anode‐free Na metal batteries are acclaimed for their high energy densities achieved through current collectors in situ plated with the absence of active negative materials. The advancement these devices hinges on development affordable effective deposition and design advanced electrolytes suppressed loss as measured against poor cycling performance safety issues associated traditional organic convectional collectors. Herein, authors report a novel strategy fabricating an Al...

Highly Li-concentrated electrolytes have been widely studied to harness their uniquely varying bulk and interface properties that arise from distinctive physicochemical coordination structures. Similar strategies applied in the realm of ionic liquid exploit improved functionalities. Despite these prospects, impact organic cation behavior on interfacial processes remains largely underexplored compared anion behavior. The present study demonstrates weakened interactions between cations anions...

Abstract Highly Li‐concentrated electrolytes are acknowledged for their compatibility with Li metal negative electrodes and high voltage positive to achieve high‐energy batteries, showcasing stable facile interfaces deposition/dissolution anodic stability. This study aims explore a highly concentrated electrolyte by adopting entropy‐driven chemistry metal‐free (so‐called anode‐free) batteries. The combination of lithium bis(fluorosulfonyl)amide (LiFSA) trifluoromethanesulfonate (LiOTf) salts...

Highly Li-concentrated electrolytes are acknowledged for their compatibility with Li metal negative electrodes and high voltage positive to achieve high-energy batteries, showcasing stable facile interfaces deposition/dissolution anodic stability. This study aims explore a highly concentrated electrolyte by adopting entropy-driven chemistry metal-free (so-called anode-free) batteries. The combination of lithium bis(fluorosulfonyl)amide trifluoromethanesulfonate salts in pyrrolidinium-based...

Eine Cu-Zn-Grenzfläche auf Kupfergeflecht mit guter Zinkaffinität wurde erzeugt und in Kombination einem Polyacrylamid-Elektrolytadditiv (PAM) zur Modifizierung der Zinkanode genutzt. Wie H. Wang et al. Zuschrift S. 15988 ff. demonstrieren, kann die anfangs gebildete, feste Cu-Zn-Lösung Zinkkeimbildung regulieren, während PAM das Wachstum von Zinkdendriten den Folgezyklen unterdrückt. Die so hergestellten Zinkanoden zeigen dendritfreies Verhalten.

To sustain the fast-growing energy demand, high-performance electrolytes and electrode materials are required for secondary batteries. Sodium batteries have emerged as expedient lithium-ion battery alternatives due to low costs high abundance of sodium resources. Ionic liquids (ILs) with vapor pressure flammability fascinating owing their intrinsic safety thermal stability.[1,2] In this talk, multifunctionalities ionic liquid will be comprehensively presented, especially targeting...

Sulfonylamide-based ionic liquid electrolytes have shown promising physiochemical and electrochemical properties for secondary battery systems.[1-3] Recently, highly Li-concentrated IL exhibited wide stability windows, stable solid electrolyte interphases, enhanced Li + transport properties.[4,5] However, a significant challenge lies in the uncontrollably large irreversible capacity of negative electrodes attributed to emergence "unprotected organic cations" electrolytes, leading unfavorable...

Sodium-ion batteries (SIBs) have gained global attention as cost-effective energy storage solutions, thanks to the abundance of sodium resources. Ionic liquid electrolytes (ILs) are increasingly recognized promising candidates for SIBs due their advantageous properties, including low volatility, reduced flammability, and high electrochemical stability.[1-3] However, application in is hindered by irreversible decomposition during initial charging negative electrodes, resulting Coulombic...

Rechargeable sodium metal batteries have drawn immense interest as next-generation batteries, owing to their high theoretical energy density and the natural abundance of Na resources. However, with excess amounts which typically employ traditional organic electrolytes, are plagued by a myriad electrochemical deficiencies that cause low Coulombic efficiencies, severe dendrite formation, thermal runaways, fire hazards during operations. To establish pathway for this work focuses on...

Highly Li salt-concentrated electrolytes have been widely studied to uniquely vary their bulk and interface properties arising from distinctive physicochemical coordination structures. Similar strategies in the realm of ionic liquid also received significant attention owing improvement functionality. Nevertheless, compared with broad study on anion behavior, impact cation behavior interfacial processes has largely overlooked. This elucidates that perceptibly weakened interaction between...

Anode-Free Sodium Metal Batteries Designing efficient current collectors for anode-free sodium metal batteries is a big challenge. In article number 2302468, Jinkwang Hwang, Kazuhiko Matsumoto and co-workers propose solution, utilizing annealing fluorination processes to create fluorinated Al substrate, enhancing negative electrode reversibility. The substrate combined with an ionic liquid electrolyte achieves improved performance of high Coulombic efficiency.

A path in an edge-colored graph is said to be rainbow if no color repeats on it. An $k$-connected every pair of vertices connected by $k$ internally disjoint paths. The $k$-connection number $\mathrm{rc}_k(G)$ the minimum colors $\ell$ such that there exists a coloring with makes $G$ $k$-connected. Let $f(k,t)$ integer $t$-partite part sizes at least has $\mathrm{rc}_k(G) \le 4$ $t=2$ and 3$ $t \ge 3$. Answering question Fujita, Liu Magnant, we show \[ f(k,t) = \left\lceil \frac{2k}{t-1}...