Ion-exchange strategy of CoS2/Sb2S3 hetero-structured nanocrystals encapsulated into 3D interpenetrating dual-carbon framework for high-performance Na+/K+ batteries

Intercalation Mechanism of the Ammonium Vanadate (NH4V4O10) 3D Decussate Superstructure as the Cathode for High-Performance Aqueous Zinc-Ion Batteries

“…The equation can be described as i = av b , where the values of both a and b are adjustable parameters. 30 For a given system, the electrochemical process is dominated by ion diffusion when the value of b is ca 0.5, corresponding to a faradaic intercalation/deintercalation reaction. On the contrary, if the b value approaches 1, it means that this is an absolute surfacecontrolled capacitive process.…”

“…Meanwhile, the capacitive influence is calculated by the relationship between the peak current ( i ) and the scan rate ( v ). The equation can be described as i = av b , where the values of both a and b are adjustable parameters . For a given system, the electrochemical process is dominated by ion diffusion when the value of b is ca 0.5, corresponding to a faradaic intercalation/deintercalation reaction.…”

An exquisite branch–leaf shaped metal sulfoselenide composite endowing an ultrastable sodium-storage lifespan over 10 000 cycles

“…It is remarkable that, compared with the other reported CoS 2 or CoSe 2 -based anodes, the CNF@CoSSe@C electrode still exhibits overwhelming advantages in terms of rate performance, especially at a rate over 5.0 A g −1 . 16,45–58 Except for the high capacity and superior rate capability, a qualified electrode should also possess ultrastable cyclic stability at a high rate to ensure long-term Na + -storage and release. Experiencing an ultralong de-/sodiation progress up to 13 000 cycles, the reversible capacity of the CNF@CoSSe@C electrode remains as high as 158.2 mA h g −1 with a decaying capacity rate of only 0.01% for each cycle.…”

Engineering Nanostructured Antimony-Based Anode Materials for Sodium Ion Batteries

“…Since Sb-based chalcogenides are typical semiconductor materials, some binary metal sulfides, in view of semiconductor knowledge, have been constructed and studied. Such as Sb 2 S 3 /MoS 2 heterostructures [171], whereby the built-in electrical field induced by heterojunctions accelerates interfacial charge transportation were realized [128,[172][173][174][175][176]. One of the explanations of the synergistic effect is that the formation of heterostructures dramatically increases electron transfer in the direction from the n-type semiconductor to the p-type semiconductor due to the built-in electrical field [177,178].…”