Oct 2026· ACS Applied Materials and Interfaces· Vol 18, pp. 56048-56058· 0 citations· 51 references
Medicine
Abstract
Solid-state sodium metal batteries are promising candidates for grid-scale energy storage due to their inherent safety and low cost. However, the development of solid electrolytes that support high-rate (>20 C) cycling for fast-charging applications remains a major challenge. Herein, we explore how adding SiO2 affects the ionic conductivity and dendrite suppression of NaB3H8, to develop superior solid electrolytes for high-rate batteries. The composites featuring an amorphous passivating layer with B-O bonds were fabricated via ball milling. Among them, NaB3H8-40%SiO2 exhibits the best conductivity, reaching 0.62 mS cm-1 at 25 °C, 2 orders of magnitude higher than that of pristine NaB3H8. Crucially, by reducing electronic conductivity and enhancing mechanical strength, it possesses a high critical current density of up to 6.5 mA cm-2, significantly higher than that of other reported hydridoborates. The Na/NaB3H8-40%SiO2/TiS2 batteries exhibit superior rate capability (216.4 mAh g-1 at 1 C and 143.1 mAh g-1 at 20 C) and long-term cycling stability (nearly 100.0% capacity retention after 2000 cycles at 20 C) at 30 °C. This work offers a promising approach for the development of innovative solid electrolytes in fast-charging or high-power-density sodium metal batteries.
All-solid-state sodium-ion batteries (ASSBs) have emerged as promising next-generation energy storage systems owing to their enhanced safety and thermal stability compared with conventional liquid-electrolyte batteries. Among thiophosphate-based solid electrolytes, Na3PS4 has attracted considerable attention because...
High-voltage all-solid-state batteries (ASSBs) promise high-energy-density storage, but oxidative instability of solid-state electrolytes at cathode interfaces remains a major obstacle. Here, we report a sacrificial-additive strategy for durable, high-voltage operation of low-cost Zr-based halide ASSBs. Introducing LiP...
Yan-Feng Zhang, Jin-Hua Liu, Ao Zeng et al.· Nano letters (Print)· 0 citations
In the pursuit of renewable energy storage, batteries are expected to play a major role. All-solid-state batteries (ASSBs) employing solid electrolytes (SEs) as ion conductors have the potential to improve the energy density and overall safety of batteries compared to traditional batteries using organic liquid electr...
Jonas D. Hehn, R. Baarslag, P. Ngene· Accounts of Materials Resear...· 0 citations
The development of solid-state batteries with high safety and energy density is critical for next-generation storage. However, conventional halide electrolytes like Li2ZrCl6 suffer from low room-temperature ionic conductivity. We propose a synergistic Sm3+ and O2− co-doping strategy and synthesize a novel oxychloride L...
Si-Cheng Ou, Zhi-Peng Xia, Ke Wang et al.· RSC Advances· 0 citations
Tin (Sn)-based anodes are attractive candidates for sodium-ion batteries due to their high theoretical capacity and low operating potential. However, their practical viability is severely constrained by drastic volume changes, unstable solid-electrolyte interphase (SEI) formation, and intrinsically low initial Coulombi...
Xi-Yu Zhang, Yao-He Zhang, Tian-Xiang Wang et al.· ACS Applied Materials and In...· 0 citations
With the rapid development of lithium-ion batteries, issues related to safety risks and resource limitations have become increasingly prominent, driving the need for alternative energy storage systems. Aluminum-based batteries have attracted significant attention due to the abundance of aluminum resources and their hig...
Hui Zhang· Journal of Physics, Conferen...· 0 citations
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