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Aqueous Zn‐ion batteries are plagued by a short lifespan caused by localized dendrites. High‐concentration electrolytes are favorable for dense Zn deposition but have poor performance in batteries with glass‐fiber separators. In contrast, low‐concentration electrolytes can wet the separators well, ensuring the migration of zinc ions, but the dendrites grow rapidly. In this work, we propose an electrolyte...
Metallic zinc anodes in zinc‐ion batteries suffer from problematic Zn dendrite chemistry. Previous works have shown that preferred‐orientation crystal planes can help dendrite‐free metal anodes. This work reports a nanothickness (≈570 nm) AgZn3 coating to regulate the Zn growth. First, AgZn3@Zn anode avoids the problem, in Ag@Zn anode, that the rate of electrochemical Ag‐Zn alloying is slower than...
2D carbon nanosheets are considered to be promising candidates for use as sodium ion battery (SIB) anodes due to their large specific surface area and excellent electronic conductivity. However, their applications are hampered by inferior cycling performance, insufficient storage capacity, and high cost. N, B co‐doping carbon nanosheets (NBTs) are synthesized using biomass‐based gelatin as carbon...
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