Journal of Materials Chemistry A, Год журнала: 2024, Номер unknown
Опубликована: Дек. 10, 2024
The graphic illustrates how an external acoustic field stabilizes the SEI layer by enhancing lithium-ion mass transfer at slip lines and kinks, reducing pit formation promoting a more uniform SEI, ultimately improving battery performance.
Язык: Английский
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Июль 19, 2024
Abstract Although polymer electrolytes have shown great potential in solid‐state lithium metal batteries (LMBs), the chain segments anchor movement of ions (Li + ), which induces low ionic conductivity and limits their application. Herein, a strategy harnessing ion‐dipole interactions is proposed to liberate from chains. The adiponitrile (ADN) molecular dipole with strong bond moment (C≡N, 11.8 × 10 −30 C m) introduced into polyvinylidene fluoride‐co‐hexafluoropropylene (PVDF‐HFP) matrix, achieving an electrolyte high 5.1 −4 S cm −1 at 30 °C. It demonstrated that interaction between C≡N Li weakens F···…Li , facilitating dissociation liberating Moreover, hybrid unsaturated solvation structure formed ADN dipole, PVDF‐HFP chain, TFSI − anion, corresponding solvent‐separated ion pair (SSIP) structure. Thus, obtained realizes lithium‐ion transference number (0.74). Consequently, assembled symmetric cell delivers stable stripping/plating reversibility over 900 h. Additionally, Li|LiFePO 4 full cells exhibit long‐term cycling stability 0.5 300 cycles capacity retention 96.4% ultralong 1000 rate (5 C).
Язык: Английский
Процитировано
4
EES batteries., Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Highly polarizable and non-polar anthracene electrolyte additives stabilize Li metal anodes by inducing dipole effects, controlling crystalline orientation, enhancing cycling stability.
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2024, Номер 503, С. 158271 - 158271
Опубликована: Дек. 3, 2024
Язык: Английский
Процитировано
1
ACS Nano, Год журнала: 2024, Номер unknown
Опубликована: Дек. 5, 2024
One of the important factors leading to lithium dendrites is a slow lithium-ion mass transport and imbalanced distribution Li
Язык: Английский
Процитировано
1
Small, Год журнала: 2024, Номер unknown
Опубликована: Авг. 13, 2024
Lithium metal batteries (LMBs) have been recognized as high-energy storage alternatives; however, problematic surface reactions due to dendritic Li growth are major obstacles their widespread utilization. Herein, a 3-mercapto-1-propanesulfonic acid sodium salt (MPS) with asymmetrically functionalized thiol and sulfonate groups polarizable interface-restructuring molecules is proposed achieve rapid longer-operating LMBs. Under harsh condition of 5 mA cm
Язык: Английский
Процитировано
0
Small, Год журнала: 2024, Номер unknown
Опубликована: Окт. 9, 2024
The exploration of potassium metal batteries (PMBs) has been intensified, leveraging potassium's abundant availability, low redox potential, and small Stokes radius. Covalent triazine frameworks (CTFs) stand out for their accessible nitrogen sites customizable structures, making them attractive electrode materials. Nonetheless, there is a lack established design principles to guide the development high-performance PMBs using CTFs. In this work, CTFs consisting different monomers are used as PMB cathodes investigate structure-performance correlation. electronic structure analysis reveals polar characteristic CTF derived from tetracyanoquinodimethane monomer, setting it apart with superior capacity (161 mAh g
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Дек. 4, 2024
Abstract Combined contribution of electromagnetic and chemical effects their synchronous tuning are an effective strategy for constructing semiconductor surface‐enhanced Raman scattering (SERS) substrates with ultra‐high sensitivity. In this work, a sulfur vacancy‐rich MoS 2 flower‐like microsphere is successfully prepared the first time through combination morphology regulation defect engineering strategies, achieving to SERS enhancement. enhancement factor as high 2.54 × 10 8 , which represents highest sensitivity among currently reported SERS‐active substrates. The theoretical calculations experiments elucidate observed activity mechanism effects. unique structures can induce Mie resonance by multiple reflection incident light in cavity structure, realizes strong effect. Meanwhile, high‐efficient carrier separation substrate multiple‐channel charge transfer mode between analyte be achieved means abundant surface sulfur‐vacancy defects, provide effect target analyte. This work opens up new idea perspective supersensitive sensors, ultimately advancing practical application technology.
Язык: Английский
Процитировано
0
Journal of Materials Chemistry A, Год журнала: 2024, Номер unknown
Опубликована: Дек. 10, 2024
The graphic illustrates how an external acoustic field stabilizes the SEI layer by enhancing lithium-ion mass transfer at slip lines and kinks, reducing pit formation promoting a more uniform SEI, ultimately improving battery performance.
Язык: Английский
Процитировано
0