Boron-doped three-dimensional MXene host for durable lithium-metal anode

Facile fabrication of boron-doped titanium carbide for efficient electrocatalytic nitrogen reduction

“…1a. 33 The (104) diffraction peak of Ti 3 AlC 2 disappeared, and the (002) characteristic peak shifted to the left, indicating that the aluminum layer had been etched away (Fig. 1b).…”

“…As a dopant, B can enhance the synergy between raw materials and increase the number of active sites for nitrogen reduction. 33,34 Further, incorporating a solitary B atom into catalysts, such as graphene, g-C 3 N 4 , and black phosphorus, can significantly enhance their reactivity toward nitrogen reduction reactions. 35–37 However, although the main components of most of the above catalysts are primarily composed of elements from main group elements, the potential influence of d orbitals within transition-metal-containing substrates on the catalytic performance of B centers remains unexplored.…”

Electrochemical Activation of Ordered Mesoporous Solid Electrolyte Interphases to Enable Ultra‐Stable Lithium Metal Batteries

“…The interface resistance is obtained from the high-frequency semicircle, which usually contains the contributions of SEI film and charge transfer. [14,32] Note that the initial interface resistance is larger for the modified Li anode than for the bare Li (Figure S6, Supporting Information). Although the as-formed ASEI is chemically lithiated by Li anode with the appearance of Li nanoparticles, the conductive network in ASEI is still not penetrative, therefore leading to the larger interface resistance before cycling and during the early cycling.…”

Elastomeric Electrolytes via Thiourethane Dynamic Chemistry and Hierarchical Hydrogen-Bonding Interactions

“…As an alternative to traditional flammable and highly chemically active liquid electrolytes, solid electrolytes (containing inorganic solid electrolytes, ISEs, and solid polymer electrolytes, SPEs) have been extensively investigated to improve the safety of next-generation lithium-based batteries. − Among them, SPEs have remarkable advantages over ISEs, such as tailorable synthesis, adjustable specific strength, scalable production, and excellent compatibility with rigid electrodes. − Although significant progress has been made for SPEs, the growth of lithium dendrites remains a primary cause of the rapid capacity decay in lithium metal batteries. Since the discovery by Monroe and Newman that lithium dendrites can be effectively suppressed when the elastic modulus of solid electrolytes is twice that of lithium metal, rigid artificial protective layers have been developed to mitigate the growth of lithium dendrites. − Nevertheless, the interfacial contact between rigid solid materials results in significant impedance and impacts the cycling performance of secondary batteries . Fortunately, it has recently been discovered that the utilization of flexible polymer electrolytes can significantly enhance the performance of lithium metal anodes (LMAs) by accommodating their volume fluctuation during deposition/dissolution. − For example, Nishikawa et al reported tough and stretchable gel polymer electrolytes (GPEs) possessing strong interchain hydrogen bonds in the presence of high concentrations of lithium salts .…”