Cs4PbBr6 QDs silicate glass-ceramic: A potential anode material for LIBs

GeO2 crystals embedded germanium phosphate glass with high electrochemical properties as an anode for lithium‐ion battery

“…The low charge transfer resistance R ct values of 486, 387, 321, and 367 Ω were obtained by fitting the GeP30–60 glass anode materials. This was mainly due to the fact that the existence of GeO 2 crystals brought out more channels in the glass network that were favorable for Li + transport, which increased the ion diffusion rate and decreased the low charge transfer resistance R ct value of the glass anode 27,28,31 . Generally, we described the ion diffusion rate by these formulas:…”

“…Therefore, the GeP50 glass anode had great application prospects. 27 By synthesizing the above results, the physical phase and electrochemical performance of the glass anode materials were explored, and as it turned out that the electrode lamellar structure of the glass anode materials had better stability. The results revealed that the electrochemical capabilities of the glass electrode can be enhanced due to the presence of crystals in the glass.…”

“…Meanwhile, the glass structure mitigates the volume expansion of the crystalline anode material and improves the stability of the electrode sheet structure, which ultimately broadens the application prospects of glass anode materials. [27][28][29][30][31] In this work, the germanium-based glass which can precipitate GeO 2 crystals was designed through the control of components. Then through phase characterization and electrochemical testing, it turned out that the specific surface area was increased, more reaction sites were provided, and the capacity of the battery was increased.…”

“…Second, the glass structure well protects the crystal environment that provides a reaction site for Li + . Meanwhile, the glass structure mitigates the volume expansion of the crystalline anode material and improves the stability of the electrode sheet structure, which ultimately broadens the application prospects of glass anode materials 27–31 …”

Carbon-Coated MnO Quantum Dot-Decorated Three-Dimensional Graphene Aerogel Composite for High-Performance Lithium-Ion Batteries

“…Quantum dots (QDs), as a result of the quantum confinement effects, exhibit unique physical and chemical properties different from the macroscopic materials, − which are potential energy storage materials for LIBs. − With their small size, good dispersion, and high specific surface area, QD electrodes can not only accommodate volume variation but also improve the electrical conductivity, reduce the lithium diffusion time, and provide more lithium storage sites to improve the rate capability and cycling stability. − Sn QDs/N-doped C electrodes synthesized by Zhang et al through the electrospinning method showed high reversible capacity and outstanding rate capability, which were attributable not only to the improved conductivity of N-doped C nanofibers but also to the shortened ion and electron diffusion paths by Sn QDs . ZnO@ZnO QDs/C core–shell nanorod composites derived from MOFs also displayed superior rate performance and cyclic stability due to the effective ion and electron fast transport .…”