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Nordbatt 2022
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Poster: Yolk-shell-structured porous zinc vanadate at N-doped carbon anode for lithium energy storage

Poster: Yolk-shell-structured porous zinc vanadate at N-doped carbon anode for lithium energy storage

Author: Huili Cao
Title: Yolk-shell-structured porous zinc vanadate at N-doped carbon anode for lithium energy storage
Affiliation: Technical University of Denmark

Abstract

Transition metal oxides are one of the promising candidates due to its high theoretical specific capacity. However, large volume expansion of transition metal oxides during the lithiation process limits their practical application. Therefore, ensuring the electrodes’ integrity over many discharge and charge cycles is the main purpose. Here, we report a facile method to fabricate carbon coated porous zinc vanadate (Zn3V2O8@C) as anode materials. The porous structure could enhance surface electrochemical reactivity, and the existence of carbon could efficiently buffer the volume change during the lithiation/delithiation, and improves the electrical conductivity. The as-prepared Zn3V2O8@C exhibits a reversible capacity of 623 mAh g-1 after 50 cycles comparing the one without coating carbon (372 mAh g-1) at a current density of 100 mA g-1. The capacity of the carbon coated material could still remain 432 mAh g-1 at 500 mA g-1 after 250 cycles.

Full list of posters


Poster: MXene-Sulfur Composite Cathode for Magnesium-Sulfur Batteries
Poster: Cycling of lithium batteries containing UV-crosslinked polyester-polycarbonate polymer electrolytes
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