Microgroove-patterned Zn metal anode enables ultra-stable and low-overpotential Zn deposition for long-cycling aqueous batteries

Exfoliated MoS2 Nanosheet/Cellulose Nanocrystal Flexible Composite Films as Electrodes for Zinc Batteries

“…The low overpotential for Zn plating indicates fast kinetics on the surface of the CNC–MoS 2 film, and this may be attributed to fast migration of Zn ions on the MoS 2 nanosheets . In addition, the voltage profiles for the 5th, 20th, and 40th cycle overlap, suggesting the formation of a stable interface between the electrodeposited Zn and the electrolyte and reversible deposition–dissolution reaction at this interface.…”

200 MPa cold isostatic pressing creates surface-microcracks in a Zn foil for scalable and long-life zinc anodes

“…Aqueous zinc-ion batteries are considered as promising candidates for renewable energy storage due to their safety, low toxicity, and high theoretical capacity (820 mA h g -1 ) 1, 2 . In recent years, although researchers have achieved obvious development of high-performance zinc-ion battery cathodes and electrolytes, the issue of Zn metal itself have been underestimated 3,4 . The inherent defects and uneven growth of zinc dendrites shorten the life of zinc-ion batteries 5,6 .…”

“…[1][2][3] In recent years, although researchers have achieved an obvious development of high-performance zinc-ion battery cathodes and electrolytes, the issue of Zn metal itself has been underestimated. 4,5 The inherent defects and uneven growth of zinc dendrites shorten the life of zinc-ion batteries. 6,7 At the same time, due to the presence of tips and impurities on the surface of mass-produced Zn foils, these regions are conducive to the nucleation of Zn ions during Zn deposition, 8,9 which leads to further deposition in subsequent cycles causing the dendrite growth.…”

A Facile Candle-Soot Nanoparticle Decoration Enables Dendrite-Free Zn Anodes for Long-Cycling Aqueous Batteries

“…17 Owing to the high mechanical strength of Zn metal, the overgrown dendrites can effortlessly puncture the separator and cause a short circuit of the battery. 18,19 Existing strategies in Zn anode optimization fall into three main categories, namely anode structural design, 20 electrolyte additive engineering, 21 and artificial solid electrolyte interphase (SEI) coating. 22 Recently, functional carbon materials are gaining popularity as coatings due to their large specific surface area, high electrical conductivity, and good aqueous stability.…”