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Ultraconformal and stretchable graphene films are expected to be an ideal artificial solid electrolyte interphase (SEI). A stacked graphene nanosheet film (SGNF) that can easily interlayer slip achieves columnar superdense lithium deposition to inhibit side reactions. The lithium metal anode with optimized SGNF demonstrates exceptional stability (over 5000 hours).
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http://dx.doi.org/10.1039/d4cc06494a | DOI Listing |
Chem Commun (Camb)
September 2025
School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
This study pioneers the use of organic nitrate C(NH)NO as an electrolyte additive in lithium metal batteries (LMBs). C(NH)NO can effectively construct a high-quality solid electrolyte interphase (SEI) on the lithium metal anode, thereby enabling dendrite-free and uniform spherical lithium (Li) deposition.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, State Key Laboratory of Electrical Insulation and Power Equipment, Engineering Resea
Lithium metal batteries (LMBs) offer exceptional energy density and output voltage. However, their practical application remains hindered by sluggish ion transport and uncontrolled lithium dendrite formation, particularly under fast-charging conditions. Here, we report a facet-engineered anion-regulating separator based on zeolitic imidazolate framework-8 (ZIF-8) with preferentially crystal-exposed (110) facets.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2025
Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
Developing solid electrolytes with high ionic conductivity, a high voltage window, low flammability, and excellent interface compatibilities with both the anode and cathode for lithium-metal batteries is still a great challenge but highly desirable. Herein, we achieve this target through an in situ copolymerization of vinyl ethylene carbonate (VEC) together with acrylonitrile (AN) under fitting ratios inside a porous polyacrylonitrile (PAN) fiber membrane doped with flame-retardant decabromodiphenyl ethane (DBDPE) molecules. The received fiber-reinforced polycarbonate-based composite electrolyte with an ultrathin thickness of 13 μm exhibits good internal interfacial compatibility because of the same AN structure and superior flame-retardant performance due to the doped DBDPE molecules.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
Yunnan Key Laboratory of Non-ferrous Metals Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, 650093, China.
To address palladium supply-demand challenges and conventional recovery inefficiencies, this study develops a lithium-mediated electrodeposition process for efficient palladium recycling from spent catalysts. Density functional theory calculations identified a controlled Pd→LiPd (Pd)→LiPdO (Pd) transformation pathway, and experimental verification confirmed that LiPd precursors underwent oxidative transformation into LiPdO with structural inheritance. LiPdO exhibited Pd-O coordination and underwent rapid dissolution in dilute hydrochloric acid.
View Article and Find Full Text PDFAdv Mater
September 2025
Department of Mechanical Engineering, University of Alberta, Edmonton, AB, T6G 1H9, Canada.
Polyesters, with their tunable chemical structures and environmental sustainability, have drawn growing attention as solid polymer electrolytes for next-generation solid-state lithium metal batteries (SSLMBs). Through a comprehensive experimental and theoretical study involving the systematic variation of carbon chain lengths in the flexible (diol) and coordinating (diacid) segments, along with selective fluorination at distinct positions along the polymer backbone, 18 types of polyester are fabricated and demonstrate that fluorination at the coordinating segment significantly enhances ionic conductivity by suppressing crystallinity. In contrast, fluorination at the flexible segment reduces ionic migration barriers by providing more homogeneous coordinating sites, thereby improving the lithium-ion transference number, despite increasing chain rigidity and a reduction in overall ionic conductivity.
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