- Abstract：The development of organic second-order nonlinear optical (NLO) materials critically depends on achieving a non-centrosymmetric arrangement of chromophores to maximize macroscopic NLO coefficients. Recently, dendronized hyperbranched polymers (DHPs) have emerged as promising candidates due to their unique spatial architectures, which suppress unfavorable aggregation and stabilize ordered orientation. The central cores serve as a key factor governing the branching topology of the resulting polymers. Herein, a series of DHPs were constructed by regulating the configuration of branching cores containing ether bonds with low rotational barriers. Driven by the synergy between an optimized static topological architecture and the dynamic modulation of low-rotational-barrier linkers, DHP-PhO achieved an optimal combination of a high NLO coefficient (d33=263 pm·V−1) and robust thermal stability (T80%=120 °C). This work provides a viable molecular design strategy for developing high-performance organic NLO polymers through the integration of topological engineering and core structure modulation, which is expected to promote the practical application of organic NLO materials in advanced optoelectronic devices.Keywords：Second-order nonlinear optical effect;Thermostability;Dendronized hyperbranched polymers;Topological modulation1|0|0
Updated：2026-09-04 - Abstract：The development of multi-mode and multi-level optical anti-counterfeiting systems holds tremendous significance for advanced information encryption and modern security. Herein, we developed a high-level information encryption platform based on a stimuli-responsive perovskite/polydiacetylene (PDA)/poly(vinyl alcohol) (PVA) composite hybrid film. By strategically integrating luminescent perovskite nanocrystals onto a twisted-stacking uniaxially oriented PDA/PVA heterostructure, three distinct optical dimensions, including pattern morphology, bright photoluminescence, and high-performance circularly polarized luminescence (CPL, with glum up to 1.0), were successfully coupled into a single flexible platform. Crucially, the three diverse optical channels can be operated independently without mutual interference. By leveraging the fast halogen anion exchange of the perovskite layer and the thermochromic phase transition of the PDA layer as orthogonal cryptographic keys, precise and reversible modulation of each optical mode was achieved. This dual-stimulus response mechanism enables a dynamic, multistage decryption profile that successfully transitions from a predefined camouflage state to authentic target information. This programmable and flexible hybrid film provides an innovative crosstalk-free paradigm for next-generation anti-counterfeiting and hierarchical information encryption.Keywords：Stimuli-responsive materials;Circularly polarized luminescent;Multi-modal information encryption;Twisted-stacking hierarchical structures1|0|0Updated：2026-09-04
- Abstract：Passive anti-icing approaches utilizing icephobic surfaces present innovative solutions that require minimal energy, are simple to maintain, and are environmentally sustainable, garnering considerable interest. However, icephobic surfaces may encounter challenges related to environmental adaptability, which diminishes their durability. To mitigate this issue, we developed soluble polydimethylsiloxane covalent adaptable networks (PDMS CANs) for low-modulus icephobic coatings with intrinsic self-repairing capability. These soluble PDMS CANs were synthesized from diol-terminated PDMS, which underwent dynamic end-cross-linking through dioxaborolane linkages. The end-linked structure enabled dissolution in solvents such as ethyl acetate. Once the solvent was removed, the dynamic cross-linked networks re-formed. This feature made PDMS CANs suitable for processing methods such as solution casting or coating. The cross-linking density of the CANs could be modified by varying the chemical formulation. The effects of cross-linking density on mechanical properties, self-repairing capability, and icephobic performance were examined. To further enhance deicing performance, silicone oil was incorporated into the PDMS CANs as a lubricant. The relationship between icephobic performance and oil content was explored. The optimal ice adhesion strength, achieved at an oil content of 40 wt%, was approximately 7.1 kPa at –10 °C. The coatings demonstrated good durability throughout icing-deicing cycles. This study highlights the potential of self-repairing, low-modulus elastic coatings based on CANs for large-area deicing applications.Keywords：Covalent adaptable networks;Deicing;Low-modulus elastic coatings;Self-repairing;Lubricating2|0|0Updated：2026-09-04
- Abstract：With growing global focus on plastic circular recycling and sustainable development, chemical upcycling is gaining importance. It converts waste plastics into high-value products, avoiding the performance degradation and downcycling associated with conventional physical recycling processes. Polyimide (PI) is a high-performance polymer material, particularly valued in the field of lithium-ion batteries as a separator due to its high-temperature resistance, favorable mechanical strength, and good electrolyte wettability. However, its broader application has been limited by the high cost of its monomers and the energy consumption of its preparation process compared to conventional lithium-ion battery separators such as polyethylene/polypropylene. Here, we propose an effective strategy for the high-value application of recycled polyimide (PMDA/ODA-type) films through chemical catalysis: using lithium hydroxide to catalyze the partial ring-opening of the imide rings in recycled polyimide, transforming the insoluble and infusible recycled polyimide into a soluble poly(amic acid)-polyimide system (PAA-PI). This system is further processed via electrospinning to fabricate polyimide nanofiber membranes, which are applied as separators in lithium-ion batteries. They exhibit similar structural, thermal properties, and mechanical properties to the PI separators prepared by the traditional method, while also possessing good porosity, electrolyte wettability, and electrolyte uptake. Furthermore, batteries prepared using this recovered PI separator (RPI) exhibit excellent high-rate performance (135.55 mAh·g–1 at 5 C current) and long-term cycle stability (118.01 mAh·g–1 after 100 cycles at 0.5 C current, and 87.10 mAh·g–1 after 100 cycles at 2.0 C current), showing no significant difference compared to batteries prepared with conventional PI separators, while outperforming batteries prepared with commercial Celgard 2500 separators, essentially meeting the performance requirements of next-generation lithium-ion batteries. This work presents a strategy for the low-cost production of high-safety polyimide-based separators in lithium-ion batteries, enabling the high-value reuse of polyimide waste and thereby establishing a process consistent with green chemistry and sustainable development.Keywords：Recycled polyimide;Chemical upcycling;Lithium-ion batteries;separator;Partial ring-opening23|15|0Updated：2026-09-01
- Abstract：Phase equilibria were investigated in uncured mixtures composed of an epoxy oligomer, polysulfone, and tetraethoxysilane. Pairwise interaction parameters were calculated and binodal curves were constructed. The mutual diffusion coefficients of the components were determined and the influence of tetraethoxysilane on the diffusion processes in both binary and ternary systems was examined. Phase diagrams of the binary and ternary systems were established using optical microscopy and dynamic light scattering, and the boundary compositions corresponding to the single-phase region were identified.Keywords：Epoxy;Polysulfone;Tetraethoxysilane;Phase equilibrium;Interdiffusion12|10|0Updated：2026-09-01
- Abstract：Self-healing polyurethane (PU) elastomers will greatly extend the service life of key components, reduce maintenance costs, and promote sustainability. However, dense hydrogen bonds cannot quickly recover after stretching, causing permanent deformation, while high-temperature and long-duration curing are required for their crosslinking. Therefore, dual crosslinked networks are designed herein to achieve self-healable, high-resilience and UV-curable polyurethane-urea elastomers (PUU-SS-Zn), using polycarbonate diol (PCDL) as the soft segment for entropic elasticity, cystamine (Cy) as a chain extender for disulfide bonds and urea-linked hydrogen bonds, 2-hydroxyethyl acrylate (HEA) as end-capping groups for rapid UV-curing, ZnCl2 for metal coordination bonds. The resultant elastomers are UV-cured within 100 s, exhibit a transmittance >92%, tensile strength of 11.8 MPa, and elongation at break of 2423%. More importantly, it achieves nearly 100% resilience at 500% strain within 5 s, realizes 99.6% resilience at 1000% strain within 5 min, and maintains 90.2% after multiple cycles. Surface scratches disappear within 30 min at 60 °C, and the self-healing efficiency reaches 93% after 8 h at 80 °C. This self-healable, high-resilience and UV-curable polyurethane-urea elastomer shows great application potentials in flexible sensors and wearable devices.Keywords：Polyurethane-urea elastomer;UV-curing;High resilience;Self-healing;Dual crosslinked network40|22|0Updated：2026-08-28
- Abstract：Conductive hydrogels with high mechanical strength, good adhesion, and high sensitivity are highly demanded for wearable electronics. A multifunctional hydrogel based on 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and acrylic acid (AA) was synthesized via free-radical polymerization. The system incorporates dynamic hydrogen bonds from guanine–cytosine (G–C) base pairs and homogeneously dispersed carbon nanotubes (CNTs) modified using a dual-ionic liquid strategy. Short-chain (C4) and long-chain (C12) imidazole-based ionic liquids act synergistically to exfoliate and stabilize CNTs, facilitating uniform dispersion and strong interfacial bonding. Owing to the continuous conductive pathways formed by the CNTs, the hydrogel exhibited enhanced electrical conductivity with a gauge factor of 5.61, together with excellent short-term cyclic stability and responsiveness for monitoring dynamic human motions. The combination of covalent cross-linking, reversible hydrogen bonding, and reinforced nanofillers endows the hydrogel with high stretchability, good adhesion (5.5 kPa), and superior fatigue resistance, showing great potential for use in flexible wearable bioelectronics.Keywords：Carbon nanotubes;Ionic liquid;Adhesion;Hydrogels28|10|0Updated：2026-08-28
- Abstract：Polypropylene (PP) can be toughened by adding elastomers or constructing core-shell structures, although the toughening efficiency of both approaches is limited. Herein, a synergistic dual-phase toughening method is proposed by introducing high-density polyethylene (HDPE) into ethylene-propylene rubber (EPR) and isoprene rubber (IR) composite systems. This resulted in an HDPE@EPR core-shell particle structure alongside finely dispersed IR particles. Interfacial tension promotes adhesion between the EPR shell and IR, concurrently reducing the size of the IR domains and interparticle spacing of the rubber phase. By optimizing the HDPE content, a loading of 15 phr resulted in a well-defined core-shell morphology with minimized IR domains. This enables the fabrication of a PP alloy exhibiting exceptional low-temperature impact toughness (35.8 kJ/m2 at –20 °C) and an optimal strength-toughness balance. However, surpassing the optimal HDPE content triggers IR particle aggregation, because the thinned EPR shell fails to fully encapsulate the HDPE core, while interfacial tension-driven repulsion facilitates this process. Finite-element simulation results demonstrated a significant synergistic toughening effect between the HDPE@EPR core-shell particles and IR particles. Under low-temperature impact loading, stress and strain are concentrated at the core-shell interface and around the IR particles, which effectively inhibits rapid crack propagation, thereby significantly enhancing the low-temperature toughness of the material. This dual-dispersed phase design strategy offers a promising pathway for the development of high-performance PP composites for demanding low-temperature applications.Keywords：Polypropylene;Core-shell structure;Phase morphology evolution;Synergistic toughening;Finite element simulation34|13|0Updated：2026-08-28
- Abstract：The precise microstructural origin of cavitation in semicrystalline polymers remains a subject of persistent controversial. Consequently, the exact spatial initiation of voids within a single spherulite remains under debate. Resolving this ambiguity has long been hindered by the spatial resolution limits of the conventional characterization techniques. To overcome this limitation, we employ an integrated approach of in situ synchrotron microfocus X-ray scattering and ultrasmall-angle X-ray scattering to investigate the cavitation behavior within individual isotactic polybutene-1 spherulite during uniaxial stretching. It turns out that early-stage voiding exhibits a distinct spatial sequence. Structural damage preferentially initiates at the spherulitic center, subsequently emerges in the equatorial region, and ultimately propagates to polar regions. By reconstructing the three-dimensional lamellar orientation within the undeformed spherulite, we revealed that lamellae oriented parallel to the stretching direction are extensively distributed across all spherulitic regions. Based on these findings, we propose a micro-mechanical cavitation model. In this framework, parallel lamellae undergo direct mechanical fragmentation under stress, with microvoids nucleating within the interstitial gaps between adjacent crystalline blocks.Keywords：Polybutene-1;Spherulite;Cavitation;Microfocus X-ray scattering11|4|0Updated：2026-08-28
- Abstract：In this study, a phthalonitrile monomer containing a maleimide group (MPN) with a melting point of 106.8 °C was successfully synthesized. Differential scanning calorimetry (DSC) showed that the MPN resin can act as an autocatalyzed resin without any curing agent. The monomer was then cured using diallyl bisphenol A (DABA) as the curing agent. Based on the results of FTIR analysis, a suitable curing cycle was established. Given the dual-stage curing behavior of the monomer, three composite samples were fabricated using three different curing cycles to investigate the relationship between the polymer structure and final properties. Interlaminar shear strength (ILSS) tests showed that samples with approximately 95% curing degree for the phthalonitrile part of this resin exhibited an ILSS of approximately 37.5 MPa. Dynamic mechanical thermal analysis (DMTA) confirmed the formation of a thermally stable and rigid crosslinked network in the synthesized composite. The storage modulus (E′) exhibited relatively high values even at incomplete curing stages, maintaining significant stiffness up to approximately 100 °C, which highlights the early formation of a semi-crosslinked structure. Thermogravimetric analysis (TGA) revealed that the fabricated composite had good thermal resistance with T5% and T10% of 484 and 584 °C, respectively, with a char yield of 84% at 900 °C.Keywords：High temperature resin;Phthalonitrile;Maleimide;Dual-curing resin;Interlaminar shear strength11|4|0Updated：2026-08-28
- Abstract：As energy storage technologies move toward safer and mechanically adaptive formats, flexible solid-state batteries have become an important platform for powering next generation deformable systems. Solid polymer electrolytes (SPEs) are promising candidates for flexible solid-state batteries because their polymer-chain flexibility, film forming capability, and interfacial adaptability enable stable solid-solid electrode-electrolyte contact under low pressure or pressure free conditions. This review summarizes recent advances in SPEs for flexible solid-state batteries, covering linear polymers, topological polymer architectures, composite and multifunctional electrolytes, and representative fabrication strategies. Application oriented SPE designs are further discussed with a focus on material and device strategies for deformation adaptability, safety enhancement, and environmental adaptability. Finally, remaining challenges and future directions are outlined to guide the rational design of high performance SPEs for flexible energy storage.Keywords：Solid polymer electrolytes;Solid-state batteries;Flexible batteries;Functional polymer electrolytes13|7|0Updated：2026-08-28
- Abstract：Magnesium alloys suffer from severe corrosion in chloride-containing environments, which significantly restricts their structural application. In this study, a core-shell smart nanocontainer (PHIO@ZIF-8/PST, denoted as PZS) was constructed by integrating a pH-responsive metal–organic framework reservoir with an in situ assembled poly(sodium thioctate) (PST) functional shell, and further incorporated into an epoxy matrix to develop an intelligent anticorrosion coating. The ZIF-8 core serves as an efficient loading platform for a chelating corrosion inhibitor (PHIO) and provides pH-triggered release capability, whereas the PST shell simultaneously enhances interfacial compatibility and introduces additional chemical protection. Structural analyses confirmed the successful construction of the core-shell architecture and the preservation of crystallinity after functional modification. Electrochemical and ion-release studies demonstrated that PZS nanocontainers exhibited pronounced pH-responsive behavior, enabling accelerated inhibitor release under acidic or alkaline conditions. When incorporated into the epoxy (EP) coating, PZS significantly improved the interfacial densification, reduced the defect density, and prolonged the diffusion pathways for aggressive species. Long-term electrochemical impedance spectroscopy and salt spray tests revealed that the PZS/EP coating maintained impedance values three orders of magnitude higher than that of the pristine epoxy after 28 days of immersion, indicating outstanding corrosion resistance. The enhanced performance arises from the synergistic coupling of the physical barrier reinforcement, inhibitor chelation, and in situ formation of protective Mg–PST complexes at active corrosion sites. This study provides a generalizable strategy for constructing multifunctional smart coatings for the durable protection of lightweight metal substrates.Keywords：Magnesium alloy;Corrosion resistance;Epoxy coating;ZIF-8;Core-shell nanocontainer;Corrosion inhibitor20|2|0Updated：2026-08-28
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- Abstract：Regulating donor–acceptor (D/A) and acceptor–acceptor (A/A) interactions is crucial for optimizing the morphology and charge dynamics of organic solar cells (OSCs). Herein, a tetraphenylethylene (TPE)-containing Y-series acceptor, TPE-HD, was developed through phenyl-alkyl side-chain engineering to manipulate the intermolecular interactions and crystallization behavior. The introduced TPE unit enhanced A/A self-aggregation and molecular ordering, leading to increased crystallinity and accelerated crystallization kinetics during film formation. The binary D18:TPE-HD blend exhibited pronounced aggregation characteristics and delivered a power conversion efficiency (PCE) of 17.5%. To further exploit the favorable packing characteristics of TPE-HD, it was incorporated as a third component into the D18:L8-BO host system. Benefiting from the synergistic effects of the efficient exciton dissociation provided by L8-BO and the enhanced electron transport induced by TPE-HD, the ternary blend exhibited optimized phase separation, improved charge transport, and suppressed recombination. Consequently, the ternary OSC achieved a PCE of 19.8% with simultaneous improvements in the short-circuit current density, fill factor, and open-circuit voltage. This work demonstrates an effective strategy for regulating intermolecular interactions through phenyl–alkyl side-chain engineering to synergistically optimize the morphology and charge dynamics of high-performance OSCs.Keywords：Organic solar cells;Side-chain engineering;Intermolecular interaction;Morphology;Crystallization kinetics31|4|0Updated：2026-08-27
- Abstract：Various phase structures can be formed by rubber and rigid particles in a polymer. Which is more beneficial to the impact toughness and rigidity, as well as their balance. This has been unclear until now. In this study, polymer composites with typical three-phase structures, that is, hard core-soft shell particles, soft core-hard shell particles, and two types of separated particles, were studied theoretically. The calculated results indicate that the soft core-hard shell structure is the best for enhancing the modulus in these three-phase structures, whereas the hard core-soft shell structure is the worst. On the other hand, both core-shell structures are beneficial for enhancing toughness, whereas the two types of particle-separated structures are not. These theoretical results are supported by the experimental results for polypropylene (PP), ethylene-propylene-diene monomer (EPDM) rubber, and SiO2 composites.Keywords：Polymer composites;Polymer processing;Phase structure;Rigidity;Toughness52|9|0Updated：2026-08-24
- Abstract：Understanding the film formation mechanism of waterborne latex is crucial for developing high-performance, eco-friendly coatings. However, the influence of various enviromental factors, i.e. temperature and wind, on spatiotemporal structure heterogeneity induced during drying complicates the establishment of the structure-process-property of coating. Here, we track a polyacrylate latex film formation using a custom-built single-sided nuclear magnetic resonance (NMR) hyphenated instrument. Two-dimensional correlation spectra reveal highly restricted water dynamics within the latex suspension, evidenced by a decreased self-diffusion coefficient D from 2.00×10–9 m2/s of pure water to 1.39×10–9 m2/s in suspension with a plummeted T1/T2 of 30, which is about 111 for pure water. For film drying under mild conditon (24 °C without airflow), dense particle packing induces strong capillary forces, generating anomalous fast-diffusion channels (D up to 31.05×10–9 m2/s) to accelerate water evaporation resulting in homogeneous structure along the thickness direction. Conversely, after introducing airflow, i.e. 35 °C with 10 L/min airflow, the accelerated drying rate (3.72 μm/min) drastically amplifies the spatiotemporal heterogeneity and triggers premature surface skinning. Such skin-core structure traps residual water inside and inhibit further coalescing of latex particles. The uncoalesced bottom layer thicknesses quantitatively predicted by non-destructive single-sided NMR (about 100, 200, and 400 μm), which is well consistent with SEM measurements (93, 240, and 409 μm, respectively). This work provides direct physical insights and theoretical guidance for the formulation and application of waterborne coatings during real service condition.Keywords：Single-sided NMR relaxometry;Skin-core structure;Latex film formation;In situ characterization;Drying kinetics37|19|0Updated：2026-08-24
- Abstract：The reprocessing and recycling of vulcanized rubbers remain challenging because conventional vulcanization networks are irreversible. Here, we designed a modified sulfur crosslinker via inverse vulcanization to regulate the exchange kinetics of vulcanization networks, thereby governing the mechanical recovery behavior of reprocessed rubbers. Copolymers of sulfur and thioctic acid (CSTA), synthesized via inverse vulcanization, were employed to crosslink butadiene-styrene rubber. After vulcanization, thioctic acid (TA) introduces dynamic disulfide bonds into the conventional vulcanization networks, enabling thermally activated network rearrangement while preserving the overall crosslinked structure. Kinetic analysis revealed that increasing the TA content accelerated network exchange and significantly lowered the apparent activation energy for network rearrangements. Correspondingly, the recovery of the mechanical properties after reprocessing improved with increasing TA content. These results establish a clear correlation between vulcanization network exchange kinetics and macroscopic mechanical performance, providing a kinetic basis for the design of reprocessable vulcanization networks and offering a promising route toward recyclable high-performance rubber materials.Keywords：Reprocessable vulcanization networks;Inverse vulcanization copolymers;Network exchange kinetics42|32|0Updated：2026-08-24
- Abstract：Intrinsically stretchable organic photodetectors (IS-OPDs) are highly attractive for applications such as skin-mounted wearables, soft robotics, and electronic textiles. However, simultaneously achieving mechanical robustness and stable optoelectronic functionality under high strain remains a challenge. Here, we demonstrate that the fibrillar network morphology formed by high-molecular-weight conjugated polymer blends provides an effective pathway to overcome this limitation. The entangled, interconnected polymer fibrils establish a mechanically percolated network that efficiently dissipates strain energy and suppresses crack propagation, enabling a high fracture strain of about 80% and enhanced toughness. The fibrillar network also forms continuous charge transport pathways, resulting in improved carrier mobility and reduced trap density. Therefore, the IS-OPDs exhibit outstanding performance stability under large deformations, maintaining a high detectivity of about 1012 Jones at strains above 40%, while enabling reliable optical communication and clear imaging capability even at 100% strain. Our study identifies a high-molecular-weight-driven fibrillar morphology as a key structural motif for mechanically robust IS-OPDs.Keywords：Conjugated polymers;Fibrillar morphology;Stretchable electronics;Organic photodetectors23|18|0Updated：2026-08-24
- Abstract：Lithium-ion battery liquid electrolytes serve as the "blood" of the battery, undertaking the critical mission of transporting lithium ions between the cathode and anode. Consequently, the market demand for performance continues to escalate. However, lithium-ion batteries still face substantial challenges in terms of specific energy, safety, and cycle life, with the degradation of ester-based electrolytes being particularly prominent. Therefore, research on multifunctional electrolyte additives has become a focal area, offering promising avenues for effectively addressing these challenges. This study systematically analyzed the degradation mechanisms of ester-based lithium hexafluorophosphate (LiPF6) electrolytes, emphasizing the pivotal role of the inevitably generated hydrogen fluoride and phosphorus pentafluoride (HF and PF5) in electrolyte breakdown. This elucidates the crucial contribution of mechanism-oriented functional groups in stabilizing electrolytes, scavenging HF/PF5, modulating solvation structures, and engineering robust solid electrolyte interphase (SEI) and cathode electrolyte interphase (CEI). Furthermore, we developed a high-throughput computational workflow utilizing Gaussian 09, Multiwfn, and VMD to rationally design multifunctional additives through synergistic integration of functional groups and density functional theory (DFT)-guided screening. This approach evaluates HF/PF5 binding energies, frontier orbital energies (HOMO/LUMO) levels (redox activity), chemical hardness, and electrostatic potential interactions. Unlike previous reviews that primarily rely on empirical data summaries, this work innovatively bridges the gap between macroscale electrolyte failure behaviors and the microscale rational design of additives. By establishing a unified framework from HF/PF5 evolution to DFT-driven multi-functional molecular engineering, our study provides a predictive and systematic design guideline to minimize experimental trial and error, thereby accelerating the development of wide-temperature, high-voltage electrolytes with enhanced cycle life and safety.Keywords：Ester-based electrolyte additives for lithium-ion batteries;LiPF6 failure mechanisms;Functional groups;Computational chemistry24|5|0Updated：2026-08-24
- Abstract：Thermal runaway-induced safety issues have seriously hindered further development of lithium-ion batteries (LIBs). As a key component of LIBs, high-performance electrospun nanofiber separators (ENSs) with high-temperature self-closing functions can prevent safety issues caused by thermal runaway in LIBs. In this study, a sandwich-structured high-temperature self-closing polyacrylonitrile/polyurethane//adding cetyltrimethylammonium bromide to the poly(butylene succinate) (PAN/PU//CPBS) ENS (CPC ENS) was efficiently fabricated using free-surface electrospinning technology via material selection and structural design. A high-melting-point polyacrylonitrile-based ENS served as the intermediate layer, providing its thermal stability, while a low-melting-point polybutylene succinate-based ENS served as the outer layer, endowing it with a high-temperature self-closing function. To enhance its performance, CPC ENS was modified with polydopamine and loaded with porous structured UiO-66 rich in active sites, resulting in a high-performance self-closing UiO66@PDA@CPC ENS. The results showed that UiO66@PDA@CPC ENS had an excellent electrolyte uptake rate (740.7%±20.6%) and wettability (8.3°±0.3°), while maintaining good thermal stability at 160 °C. Furthermore, after 100 cycles at 0.5 C, the assembled battery maintained a discharge specific capacity of 139.6 mAh/g, with a capacity retention rate of 92.4%. Meanwhile, the surface of the lithium sheet had a flat morphology, indicating that UiO66@PDA@CPC ENS had superior long-term cycling stability, thus demonstrating its enormous potential as a high-performance and safe LIB separator.Keywords：Lithium-ion battery separator;Electrospinning;Nanofiber separator;Sandwich structure;Self-closing60|41|0Updated：2026-08-19
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