Inorganic-Dominated Interphase Enabled by Tuning Solvation Configuration for 4.8 V Lithium-Ion Batteries DOI
Haoliang Wang, Yan Zhao,

Lu Wang

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: unknown, P. 12234 - 12242

Published: Dec. 5, 2024

Constructing a dense inorganic component-dominated cathode electrolyte interphase (CEI) to meet the long-term cycling requirements of ultrahigh voltage cathodes has been crucial challenge. Nevertheless, this goal is difficult achieve in traditional compositions due inevitable decomposition organic solvents. Herein, by utilizing localized mismatch between strongly coordinating hexafluorophosphate anion (PF6–) and weakly solvent 1,1,1-trifluoro-N,N-dimethylmethanesulfonamide (TFDMSA), abundant aggregates (AGGs) emerged under regular Li salt concentration 1 m lithium bis(fluorosulfonyl)imide (LiFSI) + 0.1 LiPF6 TFDMSA. This anion-rich Li+ solvation structure results an inorganic-dominated LiF-rich CEI suppress phase transitions lithium-rich manganese-based materials (LLMO). Consequently, prepared LLMO||Li half-cells demonstrate capacity retention 80.7% after 350 cycles at 4.8 V. work advances practical application new systems proposing approach construct anion-dominated structures local environments.

Language: Английский

Research on performance constraints and electrolyte optimization strategies for lithium-ion batteries at low temperatures DOI Creative Commons

Changlin Liu,

Lizhi Sheng, Lili Jiang

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(10), P. 7995 - 8018

Published: Jan. 1, 2025

This review examines the limitations of LIBs at low temperatures, discusses advancements in electrolyte components and novel formulations, proposes future strategies to improve performance under extreme conditions.

Language: Английский

Citations

7
Solvent-derived organic-rich SEI enables capacity enhancement for low-temperature lithium metal batteries DOI

Xiangkai Yin,

Boyang Li, Hong Liu

et al.

Joule, Journal Year: 2025, Volume and Issue: unknown, P. 101823 - 101823

Published: Feb. 1, 2025

Language: Английский

Citations

5
Topological Design of Highly Conductive Weakly Solvating Electrolytes for Ultrastable Sodium Metal Batteries Operating at −60 °C and Below DOI

Zhiling Wang,

Tao Zheng,

Shuzhan Wang

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Weakly solvating electrolytes (WSE) can favor reversible Na batteries at -40 °C for some extreme applications because of the low desolvation energy. However, it is challenging to enable lower temperatures. Herein, we uncover that ionic conductivity WSE reduces reaction kinetics -60 °C. Accordingly, a highly conductive weakly electrolyte (HCWSE) designed by introducing additives strongly solvents and dilution NaPF6. The additive dominate solvation sheath, increase dissociation NaPF6 fluidity electrolyte, thus greatly improve conductivity. Furthermore, binding energy between Na+ proposed as descriptor determine power solvents, based on which series ultralow-temperature HCWSEs have been topologically facilely strong-solvation ether into weak-solvation solvents. As demonstration, HCWSE showcases long cycling Na||Na cell with an overpotential 42 mV under 1 mA cm-2 1200 h. Na||NNFM (Na0.75Ni0.25Fe0.25Mn0.5O2) exhibits capacity 79.2 mAh g-1 after 160 cycles. cells also achieve impressive performances -70

Language: Английский

Citations

3
Solvation chemistry in liquid electrolytes for rechargeable lithium batteries at low temperatures DOI Creative Commons
H. C. Li,

Chuncheng Yan,

Shuhua Wang

et al.

EcoEnergy, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

Abstract Over the past few decades, significant advancements have been made in development of low‐temperature liquid electrolytes for lithium batteries (LBs). Ongoing exploration is crucial further enhancing performance these batteries. Solvation chemistry plays a dominant role determining properties electrolyte, significantly affecting LBs at low temperatures (LTs). This review introduces solvation structures and their impact, discussing how promote fast desolvation processes contribute to improvement battery performance. Additionally, various solvent strategies are highlighted refine LTs, including use linear cyclic ethers/esters, as well functional groups within solvents. The also summarizes impact salts containing organic/inorganic anions on chemistry. Characterization techniques discussed, providing comprehensive analysis that offers valuable insights developing next‐generation ensure reliable across wide temperature range.

Language: Английский

Citations

2
A Temperature‐Adapted Ultraweakly Solvating Electrolyte for Cold‐Resistant Sodium‐Ion Batteries DOI Open Access

Yuewei Cui,

Youxuan Ni,

Yuankun Wang

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Abstract Sodium‐ion batteries are applied to cold‐resistant energy storage hindered by phase transitions and sluggish Na + migration of traditional carbonate‐based electrolytes at low temperatures. The desolvation is a crucial step in impeding the transport , which primarily attributes robust solvent coordination . Herein, low‐temperature adaptive electrolyte with an ultraweakly coordinated 1,3‐dioxolane (DOL) designed for constructing anion‐rich solvation structure diglyme (G2)‐based electrolyte. electronegativity oxygen atoms G2 attenuated dipole‐dipole interaction between DOL G2. As temperature drops, weakened ‒O (G2) leads increased anionic less coordination, facilitating This anionic‐enhanced contributes formation stable solid interface hard carbon (HC) anode, accelerates diminishing voltage polarization Consequently, HC anode can retain high capacity 203.9 mAh g ‒1 (1 C) ‒50 °C, pouch cell composed HC||Na 3 V 2 (PO 4 ) ‒30 °C achieves retention 92.43% after 100 cycles 0.1 C. strategy guides design ultra‐low broadens range applications sodium‐ion batteries.

Language: Английский

Citations

1
Practical and Versatile Sodium‐Ion Batteries Realized With Nitrile‐Based Electrolytes DOI Open Access
Gaopan Liu, Kai Zhang, Yongjie Cao

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract Sodium‐ion batteries (SIBs) hold tremendous potential in next‐generation energy storage. However, no SIB has yet achieved simultaneous support for high voltage, rapid charging, and all‐climate adaptability due to electrolyte limitations. This study successfully constructs versatile SIBs using an optimized acetonitrile (AN)‐based electrolyte, which offers excellent high‐voltage tolerance, ionic conductivity, anion‐enriched solvation structure, a wide liquidus temperature range. The engineered solid interphase (SEI) exhibits low resistance exceptional stability, effectively supporting fast temperature‐adaptive operation, long‐term cycling stability. Consequently, this tailored combined with robust SEI, enables hard carbon (HC) anodes achieve reversible capacity of 223 mAh g −1 at rate 5 C. When paired NaNi 1/3 Fe Mn O 2 (NFM) cathode, the HC||NFM full cells operate stably cut‐off voltage 4.15 V, sustaining over 1400 cycles Furthermore, practical 3 Ah pouch cell demonstrates retaining 90.7% its after 1000 cycles, shows adaptability, maintaining 56.4% room‐temperature −60 °C 97.3% retention 350 50 °C. work provides valuable insights developing advanced electrolytes SIBs.

Language: Английский

Citations

1
Solvation Structures Dependent Ion Transport and Desolvation Mechanism for Fast-Charging Li-Ion Batteries DOI Creative Commons
Zhenyu Fan, Jingwei Zhang,

Lanqing Wu

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Solvation structures significantly affect electrolyte kinetics, with notable enhancements from CIPs to SSIPs AGGs. Electrolytes such as DOL Ele., abundant AGGs, facilitate ion transport and desolvation through a hopping-assisted mechanism.

Language: Английский

Citations

6
Designing High Donor Number Anion Additive for Stable Lithium Metal Batteries DOI Open Access
Jia Li,

Jingwei Zhang,

Huaqing Yu

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

The electrolytes in energy-dense lithium metal batteries (LMBs) face the challenge of being compatible with both anode and high voltage cathodes. Adjusting solvation structures by regulating interaction between ions solvents is an effective strategy to improve stability LMBs. Herein, trifluoroacetate (LiTFA) endowed donor number introduced into ether-based as additive regulate structure further stabilize interphase well accelerate interfacial kinetic Due strong TFA

Language: Английский

Citations

4
Progresses on advanced electrolytes engineering for high-voltage lithium metal batteries DOI
S.H. Dai,

Wenqiang Fang,

Tianxiang Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157269 - 157269

Published: Nov. 1, 2024

Language: Английский

Citations

4
Regulating interfacial chemistry of layered lithium-rich oxide by weakly solvating electrolyte DOI

Huinan Yu,

Yan‐Ru Yang,

Runjing Xu

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110850 - 110850

Published: March 1, 2025

Language: Английский

Citations

0