Electrolyte Additive News Today

Aqueous Zn-ion batteries (ZIBs) have garnered significant interest as an important solution for large-scale energy storage due to their enhanced safety and affordability. Nevertheless, dendrites formation and side reactions faced by Zn anodes have hindered their commercial development. Electrolyte additives, among various methods to stabilize Zn anodes, have emerged as the most commercially viable technique due to their low dosage and potent effects, offering substantial economic benefits. While...

Sodium-ion batteries (SIBs) are a promising candidate for large-scale energy storage due to the low cost and abundant sodium resources. However, the formation of sodium dendrites on the surface of hard carbon (HC) anodes is the most intractable challenge for full cells during charging, leading to severe performance degradation and safety hazards. Here, a robust additive-induced borate and fluoride-rich interphase is constructed by introducing sodium difluoro(oxalato)borate (NaDFOB) as additive i...

Aqueous Zn-ion batteries (AZIBs) have attracted strong attention for widespread applications because of their safety, cheapness and ecological amiability. Nevertheless, challenges exist at the Zn anode such as the side reactions. Here, a small amount of sulfolane (SL) (1 vol%) was added into the typical ZnSO4 electrolyte as an additive. Detailed studies shown that SL adjusts the solvation structure of Zn2+, reduces the water activity and regulates the Zn deposition. Consequently, the side reacti...

Sodium metal as anode material applied to SMBs has gained considerable attention in recent years, owing to its high theoretical capacity (1166 mAh g-1), low cost and earth abundance when compared with Li metal. However, there is still a long way to go before realizing the practical application of SMBs. Sodium metal anode (SMA) suffers from challenging issues, such as unstable SEI, Na dendrites growth, and infinite volume change during cycling, etc, leading to rapid capacity decay, shortened life...

Metallic Zinc (Zn) has attracted great attention as a promising anode for aqueous batteries owing to its high theoretical capacity, low cost, and high natural abundance. However, Zn anode suffers from a crucial challenge, namely the growth of Zn dendrites, which brings not only a short life span but also severe safety concerns. In this work, we report that anionic tin sulfide nanosheets (TS-Ns) server as electrolyte additive to mitigate the dendrite growth. The negatively charge TS-Ns can attrac...

Abstract Sodium (Na) metal is considered as a promising anode candidate for large-scale energy storage systems because of its high theoretical capacity and low electrochemical redox potential. However, Na anode suffers from a few challenges, such as the dendrite growth and severe parasitic reactions with electrolytes, which greatly hinder its practical applications. In this work, we demonstrate that an organosulfur compound additive (tetramethylthiuram disulfide) provides a facile and promising...