Nano Research, Journal Year: 2024, Volume and Issue: 17(11), P. 9679 - 9687
Published: Aug. 13, 2024
Language: Английский
Nano Energy, Journal Year: 2024, Volume and Issue: 128, P. 109814 - 109814
Published: May 31, 2024
Language: Английский
Citations
31
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(21)
Published: March 16, 2024
Diluents have been extensively employed to overcome the disadvantages of high viscosity and sluggish kinetics high-concentration electrolytes, but generally do not change pristine solvation structure. Herein, a weakly coordinating diluent, hexafluoroisopropyl methyl ether (HFME), is applied regulate coordination Na
Language: Английский
Citations
21
Acta Materialia, Journal Year: 2025, Volume and Issue: unknown, P. 120849 - 120849
Published: Feb. 1, 2025
Language: Английский
Citations
1
Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(21)
Published: March 16, 2024
Abstract Diluents have been extensively employed to overcome the disadvantages of high viscosity and sluggish kinetics high‐concentration electrolytes, but generally do not change pristine solvation structure. Herein, a weakly coordinating diluent, hexafluoroisopropyl methyl ether (HFME), is applied regulate coordination Na + with diglyme anion form diluent‐participated solvate. This unique structure promotes accelerated decomposition anions diluents, construction robust inorganic‐rich electrode‐electrolyte interphases. In addition, introduction HFME reduces desolvation energy , improves ionic conductivity, strengthens antioxidant, enhances safety electrolyte. As result, assembled Na||Na symmetric cell achieves stable cycle over 1800 h. The Na||P’2‐Na 0.67 MnO 2 delivers capacity retention 87.3 % average Coulombic efficiency 99.7 after 350 cycles. work provides valuable insights into chemistry for advanced electrolyte engineering.
Language: Английский
Citations
8
Progress in Materials Science, Journal Year: 2024, Volume and Issue: unknown, P. 101401 - 101401
Published: Oct. 1, 2024
Language: Английский
Citations
7
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 4, 2024
High-voltage sodium metal batteries (SMBs) present a viable pathway towards high-energy-density sodium-based due to the competitive cost advantage and abundant supply of resources. However, they still suffer from severe capacity decay induced by notorious decomposition electrolyte under high voltage unstable cathode/electrolyte interphase (CEI). In addition, reactivity Na flammable electrolytes push SMBs their safety limits. Herein, special dual-anion aggregated
Language: Английский
Citations
5
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 4, 2024
Abstract The hard carbon (HC) anodes with desirable electrochemical performances including high initial Coulombic efficiency, superior rate performance and long‐term cycling play an indispensable role in the practical application of sodium ion batteries (SIBs), which are closely related to electrolytes them matched. Fully analyzing mechanism electrolyte engineering for HC is crucial promoting commercialization SIBs, but still lacking. In this review, correlation between physicochemical properties first summarized. And point out properties, conductivity, de‐solvation energy, interface passivation ability Na + storage HC. Then, formation process, composition, as well structure solid interphase (SEI) on surface mainly discussed, structure‐activity relationship SEI analyzed depth. Moreover, based analysis, relevant design strategies have been Finally, challenges future development directions proposed. This review expected provide professional theoretical guidance contribute rational high‐performance anodes, industrialization SIBs.
Language: Английский
Citations
5
Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(14), P. 12472 - 12486
Published: June 29, 2024
Sodium-ion batteries (SIBs) are expected to become attractive large-scale energy storage technologies owing their abundant resources and low cost. However, sluggish reaction kinetics at the interface poor thermodynamic stability of organic electrolytes lead inferior cycle/rate performance a density SIBs. The electrolyte engineering, including salt concentration adjustment, molecule design, additive utilization, has been demonstrated effectively optimize solvation structures construct stable interfaces, resulting in accelerated Na+ transport suppressed decomposition. This review focuses on recent advances fundamental design principles terms sodium salts, solvents, functional additives. Furthermore, crucial challenges for SIBs, high operating voltage, wide working temperature range, fast charge rate, discussed. corresponding solution strategies introduced desired high-performance Finally, several perspectives future development presented practical
Language: Английский
Citations
4
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 13, 2025
Abstract Ultralow‐concentration ether electrolytes hold great promise for cost‐effective sodium‐ion batteries (SIBs), while their inferior cycle stability under high voltages remains an awkward challenge. Herein, ultralow‐concentration diglyme (G2)‐based with single sodium salt are found to manifest high‐rate capability when employed high‐voltage Na 3 (VOPO 4 ) 2 F (NVOPF) cathode, but specific capacity rapidly depletes exhaustion during long‐term cycling. To address this issue, trace NaBF (0.03 m as electrolyte additive is introduced, which minimally affects ion conductivity of the pristine electrolyte, yet weakens coordination between + ions and G2 molecules. This allows more PF 6 − enter solvation sheath ions, forming a stable cathode interphase enhancing performance without sacrificing (up 20 C). As result, modulated G2‐based enables NVOPF steadily, retention 94.2% over 1000 cycles at low rate 1 C. work provides valuable insights into modulation use in durable SIBs.
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 25, 2025
Abstract The manganese Prussian blue analogs (Mn‐PBAs) are regarded as scalable, low‐cost, and high‐energy cathodes for sodium‐ions batteries (SIBs). Unfortunately, Mn‐PBAs suffer from severe dissolution, particularly of (Mn), which has been shown will exacerbate the structural collapse cathode materials electrolyte decomposition, significantly reducing cycling stability Mn‐PBAs‐based batteries. Herein, an innovative dissolution inhibition strategy is proposed by utilizing solvents that inherently exhibit lower solubility electrolyte. This approach successfully establishes a dissolution‐diffusion interface, thereby kinetically preventing addressing associated issues. interaction energy between electrolyte, along with analyses mean square displacement van Hove function curves, theoretically validates successful construction this interface. In new can provide specific capacity ≈154 mAh g −1 (≈510 Wh kg ) be cycled at current density 2 C >1000 cycles, demonstrating excellent electrochemical performance in pioneering work forge avenues stabilizing holds substantial promise practical applications.
Language: Английский
Citations
0