Aluminum dendrite suppression by graphite coated anodes of Al-metal batteries

Abstract

Rechargeable aluminum batteries (RABs) are regarded as a promising energy storage system considering the high safety, rich abundance, and high capacity of aluminum. One of the critical challenges for RABs...

MXene-Based Mixed Conductor Interphase for Dendrite-Free Flexible Al Organic Battery

“…Figure 3f and Table S1 compare the electrochemical performance of MAl-80 with some previously reported modified Al metal anodes in the literatures. [20][21][22][23][24]28 It can be seen that the electrochemical performance of MAl-80 exhibits significant advances compared with the data reported so far. SEM and surface 3D topography were used to further validate the role of the MXene protective layer in inhibiting dendritic growth.…”

“…The graphite coating layer can effectively suppress the dendrite growth of Al toward high-performance Al battery with lower overpotential and better cycling stability. 24 Figure 1a demonstrates that Al metal deposition may happen either within the SEI or at the SEI/Al interface, depending upon the diffusion speed of Al 3+ . Assuming fast ion transport in the SEI, metal aluminum will deposit at the SEI/Al interface, but if not, it may nucleate inside the SEI layer.…”

“…Another promising technique for regulating the stripping/plating of Al metal is the application of an artificial solid-electrolyte interface (SEI) protective layer on the metal anode. The graphite coating layer can effectively suppress the dendrite growth of Al toward high-performance Al battery with lower overpotential and better cycling stability Figure a demonstrates that Al metal deposition may happen either within the SEI or at the SEI/Al interface, depending upon the diffusion speed of Al 3+ .…”

A metallic two-dimensional b-BS2 monolayer as a superior Na/K-ion battery anode

“…15–18 In recent years, with the rapid development of the high-end electronics market, non-lithium-ion batteries (NLBs), including sodium-ion batteries (SIBs), potassium-ion batteries (PIBs), and multivalent ion batteries, have been considered as the next generation of energy power sources. 19–23 Therefore, the development of cost-effective, long-life, especially anode electrode materials of large-capacity energy storage systems is still highly desired. 24–26…”

In Situ Monitoring of the Al(110)‐[EMImCl] : AlCl3 Interface by Reflection Anisotropy Spectroscopy

“…Numerous approaches for Al surface pre-treatment and designing the Al-electrolyte interface have, via in situ and ex situ characterization like in situ optical microscopy and X-ray photoelectron spectroscopy (XPS), already shown to improve the cycling stability and hinder dendrite formation. [14][15][16] The immersion pre-treatment of the Al substrate in IL has been regarded as an efficient strategy to partially remove the inactive oxide layer (Al 2 O 3 ) covering the Al substrate and to activate the Al electrode for subsequent electrochemical cycling in IL electrolytes. [5,17,18] However, the partial removal of the Al 2 O 3 layer has not proven to be sufficient to allow subsequent electrochemical cycling in AlCl 3 -free electrolytes.…”