CuO–C modified glass fiber films with a mixed ion and electron-conducting scaffold for highly stable lithium metal anodes

Abstract

The most critical issue hindering the practical application of lithium metal anodes in secondary batteries is the uncontrollable dendrite growth, which is caused by the uneven supply of lithium ions...

Construction of Mixed Ionic‐Electronic Conducting Scaffolds in Zn Powder: A Scalable Route to Dendrite‐Free and Flexible Zn Anodes

“…Hence, mixed ionic-electronic conductors (MIECs) have been proposed to enhance the kinetics of electrode materials used for common batteries. [42][43][44][45] Nevertheless, the engineering of MIECs in Zn anodes has not received much attention, but it is vital for Zn 2+ Zn powder (Zn-P)-based anodes are considered ideal candidates for Zn-based batteries because they enable a positive synergistic integration of safety and energy density. However, Zn-P-based anodes still experience easy corrosion, uncontrolled dendrite growth, and poor mechanical strength, which restrict their further application.…”

“…Hence, mixed ionic‐electronic conductors (MIECs) have been proposed to enhance the kinetics of electrode materials used for common batteries. [ 42–45 ] Nevertheless, the engineering of MIECs in Zn anodes has not received much attention, but it is vital for Zn 2+ storage. More importantly, few approaches to new Zn metal anodes retain the original nature of aqueous Zn‐based batteries, i.e., ease of processing, low cost, and good safety.…”

Harnessing the Potential of Zn Powder Anodes: Innovations and Future Directions in Aqueous Zinc‐Ion Batteries

“…In recent years, in order to improve the electrochemical performance of battery electrode materials, the concept of constructing conductive frames on electrode materials has been proposed. [62][63][64][65] One of the methods for designing 3D Zn powder anode structure is to introduce mixed ion conductive scaffold. Liang et al successfully manufactured a flexible Zn powder anode with high conductivity, dendrite-free and corrosion resistance by using a hybrid ion electronic conductive scaffold (Figure 5a).…”

Advanced Composite Lithium Metal Anodes with 3D Frameworks: Preloading Strategies, Interfacial Optimization, and Perspectives

“…During the repeated process of Li stripping/plating, although the multifunctional framework has a porous structure to manage the volume change of anode and functionalized nanostructures to induce homogeneous Li deposition, the crack of poor SEI would inevitably incur especially under a long-term cycling or high applied current/capacity due to the unprotected surface. Some 3D lithiophilic frameworks can optimize the SEI components due to the in-situ formed Li 2 O, [167,191] LiF, [50] or Li 3 N [153] with the reaction of reductive molten Li. Unfortunately, such ingredients only exist on the surface where the framework reacts with molten Li, which is difficult to affect the SEI formation between the contact surface of the composite LMA and the electrolyte.…”