Plasticized Composite Electrolyte with Al₂O₃ Nanofiller-Reinforced PVDF-HFP for Solid-State Lithium–Metal Batteries

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Язык: Английский

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Simultaneous Structure, Thermal, and Mechanics Regulation for Boosting Performance of PVDF-Based Solid-State Electrolytes

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(9), С. 14058 - 14072

Опубликована: Фев. 18, 2025

Poly(vinylidene fluoride) (PVDF) is promising for polymer solid-state electrolytes (PSEs) but faces challenges such as low ionic conductivity, uneven strain distribution, and poor lithium (Li) dendrite inhibition. Herein, an effective strategy proposed to enhance PVDF-based PSEs by incorporating a fast ion conductor LiZr2(PO4)3 (LZP) with negative thermal expansion property NASICON-type structure, the effects are investigated using multifarious methods. The added LZP not only enhances mobility of PVDF chain concentration free Li+, regulates heat release volume during cycles, thereby protecting electrode morphology well improving interface between electrolyte. Compared pristine PSEs, conductivity increased 3.3 × 10-4 S cm-1, stability augmented adding 10 wt % LZP. At 25 °C 0.5 C, values discharge capacity retention Li|PVDF-10 %LZP|LiFePO4 %LZP|LiNi0.8Co0.1Mn0.1O2 full cells without liquid improved from 61.4 53.4% 90.4 87.7% after 300 200 respectively. enhancement mechanisms based on interactions heat, deformation, interface, transfer. It paves unique way develop simultaneously adjusting mechanics.

Язык: Английский

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Small components play a big role - fillers in composite solid-state electrolytes for lithium metal batteries

Energy Materials, Год журнала: 2024, Номер 4(6)

Опубликована: Дек. 13, 2024

Lithium metal batteries (LMBs), the energy conversion and storage technologies that have been thoroughly investigated, are utilized in various areas. Most current commercial LMBs use liquid electrolytes, but their safety cannot be guaranteed. In contrast, all-solid-state with solid-state electrolytes (SSEs) regarded as next-generation systems owing to enhanced safety. examination of SSEs, benefits composite SSEs (CSSEs) particularly prominent. CSSEs relying on multiphase composites better flexibility tailor electrolyte performance based demand and, thus, design components. Based existing research presentations, we herein review development CSSEs. Firstly, essential components introduced, focusing explaining transport channel Li ions within polymer matrix impact fillers this channel. The key parameters described detail. Subsequently, meticulously classified; critical roles played by different clarified, hotspots summarized. Furthermore, prevalent structural methodologies examined, structures battery is elucidated. Finally, problems future prospects This significant because it provides ideas for contributes realize wide application.

Язык: Английский

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Sn-Doped Beta Zeolite with Rich Lewis Acidic Sites Enhances Lithium-Ion Dissociation and Transport in PEO-Based Solid Polymer Electrolytes

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 26, 2025

Poly(ethylene oxide) (PEO)-based solid polymer electrolytes (SPEs) demonstrate strong electrode adhesion and facile processability, making them promising candidates in all-solid-state lithium metal batteries (ASSLMBs). However, poor ionic conductivity, low Li+ transference number, insufficient mechanical strength greatly limit their practical application. Zeolite, a porous ceramic material rich active sites, shows significant potential as filler the PEO-based SPEs. In this study, we prepared heteroatomic Sn-Beta zeolite with high Lewis acid activity through simple two-step postsynthesis process explored mechanism of action acidic sites on dissociation transport. The effectively weaken coordination environment by binding O atoms PEO via metal-oxygen bonds, facilitating transfer along chains. Moreover, it can promote salt anchoring TFSI- anions, resulting release free Li+. obtained SPE (PL-Sn-Beta) exhibits conductivity 1.40 × 10-3 S cm-1 at 60 °C number up to 0.51. Furthermore, ordered pore channels provide uniform Li-ion transport pathways, homogeneous deposition. As result, symmetric cell PL-Sn-Beta demonstrates stable plating/stripping cycle performance for over 2200 h 0.1 mA cm-2. Meanwhile, initial discharge capacity Li/PL-Sn-Beta/LiFePO4 full reaches 145.6 mAh g-1 1 C °C, retention rate is 81.5% after 500 cycles. This work provides theoretical insights into fillers SPEs well new design concepts.

Язык: Английский

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Advancements in the study of ion migration and mechanical properties in solid-state electrolytes through first-principles calculations

Journal of Energy Storage, Год журнала: 2025, Номер 128, С. 117236 - 117236

Опубликована: Июнь 2, 2025

Язык: Английский

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Li2SO4-infused SiO2 filler-based in-situ polymerized composite electrolytes for solid-state lithium metal batteries

Journal of Power Sources, Год журнала: 2024, Номер 629, С. 236130 - 236130

Опубликована: Дек. 28, 2024

Язык: Английский

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Bilayer Heterostructure Electrolytes Were Prepared by a UV-Curing Process for High Temperature Lithium-Ion Batteries

Polymers, Год журнала: 2024, Номер 16(21), С. 2972 - 2972

Опубликована: Окт. 23, 2024

Solid-state electrolytes are widely anticipated to revitalize high-energy-density and high-safety lithium-ion batteries. However, low ionic conductivity high interfacial resistance at room temperature pose challenges for their practical application. In this work, the dual-matrix concept is applied design of a bilayer heterogeneous structure. The electrolyte in contact with cathode blends PVDF-HFP oxidation-resistant PAN. contrast, anode reduction-resistant PEO. A UV-curing process was used fabricate heterostructure electrolyte. exhibits an 4.27 × 10

Язык: Английский

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In-situ preparation of tightly Contacting 3D fiber network composite electrolytes for high-performance all-solid-state lithium batteries

Journal of Electroanalytical Chemistry, Год журнала: 2024, Номер unknown, С. 118915 - 118915

Опубликована: Дек. 1, 2024

Язык: Английский

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