Cellulose-Encapsulated Composite Electrolyte Design: Toward Chemically and Mechanically Enhanced Solid-Sodium Batteries

ACS Nano, Год журнала: 2024, Номер 18(25), С. 16285 - 16296

Опубликована: Июнь 12, 2024

Sulfide- and halide-based ceramic ionic conductors exhibit comparable conductivity with liquid electrolytes are candidates for high-energy- high-power-density all-solid-state batteries. These materials, however, inherently brittle, making them unfavorable applications. Here, we report a mechanically enhanced composite Na+ conductor that contains 92.5 wt % of sodium thioantimonate (Na3SbS4, NSS) 7.5 carboxymethyl cellulose (CMC); the latter serves as binder an electrochemically inert encapsulation layer. The constituents were integrated at particle level, providing NSS-level in NSS–CMC composite. more than 5-fold decrease electrolyte thickness obtained provided increase conductance compared to NSS pellets. As result CMC encapsulation, this shows increased moisture resistivity electrochemical stability, which significantly promotes cycling performance NSS-based solid-state This work demonstrates well-controlled, orthogonal process ceramic-rich, processing: independent streams formation along solvent-assisted environment. also provides insights into interplay among solvent, polymeric binder, particles synthesis implies critical importance identifying appropriate solvent/binder system precise control complicated process.

Язык: Английский

---

Nonstoichiometry Induced Amorphous Grain Boundary of Na₅SmSi₄O₁₂ Solid-State Electrolyte for Long-Life Dendrite-Free Sodium Metal Battery

Nano Letters, Год журнала: 2024, Номер 24(29), С. 8911 - 8919

Опубликована: Июль 11, 2024

Oxide ceramics are considered promising candidates as solid electrolytes (SEs) for sodium metal batteries. However, the high sintering temperature induced boundaries and pores between angular grains lead to grain boundary resistance pathways dendrite growth. Herein, we report a modification strategy, which

Язык: Английский

---

A simple approach through reduction of Na2SO4 to prepare high-purity Na2S for sulfide electrolytes toward all-solid-state sodium batteries

Journal of Power Sources, Год журнала: 2024, Номер 620, С. 235264 - 235264

Опубликована: Авг. 17, 2024

Язык: Английский

---

Inorganic Solid‐State Electrolytes for Solid‐State Sodium Batteries: Electrolyte Design and Interfacial Challenges

ChemElectroChem, Год журнала: 2025, Номер 12(3)

Опубликована: Янв. 6, 2025

Abstract Recent advancements in inorganic solid electrolytes (ISEs), achieving sodium (Na)‐ion conductivities exceeding 10 ‐2 S cm ‐1 at room temperature (RT), have generated significant interest the development of solid‐state batteries (SSSBs). However, ISEs face challenges such as their limited electrochemical stability windows (ESWs) and compatibility issues with high‐capacity, high‐voltage cathode materials Na metal anodes. The success high‐performance SSSBs hinges on developing ideal that deliver high + ion conductivities, robust chemical stability, well constructed electrode/ISE interfaces. This review explores fundamental principles strategies to optimize SSSB performance by addressing related interfaces, emphasizing many interfacial are intrinsically linked ISE properties. It highlights recent research, including mechanisms Na‐ion conduction key factors influencing it, crystal structure, lattice dynamics, point defects, grain boundaries. also discusses prototyping for cell design from perspectives material defect chemistry. Additionally, identifies future opportunities advancing provides rational solutions guide research toward practical realization SSSBs. Keywords: Solid‐state batteries; Inorganic electrolytes; Interfacial mechanism; Electrochemical window; Ionic conductivity; Modification

Язык: Английский

---

Ca‐substituted Na₃SbS₄ glass–ceramic electrolytes: Achieving high conductivity and excellent interfacial stability

Journal of the American Ceramic Society, Год журнала: 2025, Номер unknown

Опубликована: Янв. 15, 2025

Abstract Super conductor Na 3 SbS 4 has received substantial attention in electrolyte research because of its high ionic conductivity and low grain boundary resistance. A breakthrough electrochemical stability with good yet to be captured. Calcium (Ca) appears as an ideal substitute for sodium (Na) due abundance geological resources, nontoxic properties, equivalent radius. The proposed 3‐2 x Ca glass–ceramic electrolytes were subsequently manufactured using ball milling heat treatment. results acquired the maximum 1.59 mS cm −1 at room temperature, which reached commercial use level when compared current popular lithium‐ion battery. Moreover, calcium ions partially replaced sites while creating massive vacancies maintain charge neutrality, resulting fast ion transport. Furthermore, a more stable bond Ca–S was formed interface, inhibited additional reactions electrolyte–metal interface demonstrated exceptional cyclic stability, making it viable solid‐state sodium‐ion batteries.

Язык: Английский

---

Hopping‐Phase Ion Bridge Enables Fast Li⁺ Transport in Functional Garnet‐Type Solid‐State Battery at Room Temperature

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Composite polymer electrolytes (CPEs) containing Li6.4La3Zr1.4Ta0.6O12 (LLZTO) is widely regarded as leading candidate for high energy density solid-state lithium-metal batteries due to its exceptional ionic conductivity and environmental stability. However, Li2CO3 LiOH layers at LLZTO surface greatly hinder Li+ transport between LLZTO-polymer the electrode-electrolyte interface. Herein, of boronized obtain functionalized LLZTO, conversion mechanism clarified. By dissolving crystal structure cellulose hopping-phase ion bridge (HPIB), which release activity oxygen-containing polar functional group (─OH, ─O─). Therefore, a high-throughput transporter (HTIT-37) with transfer number (0.86) prepared by introducing HPIB into polyvinylidene fluoride interface intermolecular hydrogen bond interaction, it demonstrated that acts "highway" across this heterogeneous Moreover, found self-adsorb on SEI surface, fast kinetics anode-CPE Thus, lifespan Li|HTIT-37|Li over 8000 h, critical current exceeds 2.3 mA cm-2. The LiNi0.5Co0.2Mn0.3O2|Li Li1.2Ni0.13Co0.13Mn0.54O2|Li battery remains stable HPIB-enhanced electrode process, proving application potential LLZTO-based CPE in SSLMB.

Язык: Английский

---

Investigations into the Nucleation Dynamics of the Stable Na-Metal Anode: Revealing the Role of a Tin-Infused Carbon Nanofiber Interlayer

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

Опубликована: Фев. 17, 2025

Fundamental understanding and controlling of sodium nucleation are essential for enhancing the performance, safety, longevity metal batteries, which is not yet clearly understood in case batteries. The present study showcases how a modification host material influences kinetics. Current-time transient studies on copper, carbon nanofiber, tin-embedded nanofiber interlayers employing Scharifker-Hills model elucidate mode nucleation. This work tries to delve deep presents tin-based interlayer can only minimize barrier but also direct sequential progressive instantaneous while reducing overpotential substantially, resulting crystalline, uniform Na-metal deposition. Further, account complex dynamics solid electrolyte interphase (SEI) formation distinctly associated with alkali deposition, SEI-fracture has been included, quantification electrochemical parameters obtained. results provide important insights into mechanism, paving way counter dendrite SEI dissolution issues anode.

Язык: Английский

---

Enhancing sodium ionic conductivity: An interface bridging strategy for Na3Zr2Si2PO12 solid-state electrolyte

Journal of Energy Storage, Год журнала: 2025, Номер 115, С. 116046 - 116046

Опубликована: Март 1, 2025

Язык: Английский

---

Layered deposition of porous composite electrodes for high-performance solid-state batteries at ambient temperatures

Journal of Power Sources, Год журнала: 2025, Номер 641, С. 236831 - 236831

Опубликована: Март 23, 2025

Язык: Английский

---

Assessing the Efficacy of Seawater Batteries Using NASICON Solid Electrolyte

Applied Sciences, Год журнала: 2025, Номер 15(7), С. 3469 - 3469

Опубликована: Март 21, 2025

The need to reduce greenhouse gas emissions and guarantee a stable reliable energy supply has resulted in an increase the demand for sustainable storage solutions over last decade. Rechargeable batteries with solid-state electrolytes (SSE) have become focus area due their potential increased density, longer cycle life, safety conventional liquid electrolytic batteries. superionic sodium conductor (NASICON) Na3Zr2Si2PO12 gained lot of attention among ESS because its exceptional electrochemical properties, which make it promising candidate sodium-ion NASICON’s open frame structure makes possible transport ions efficiently even at room temperature, while wide window enables high-voltage operation reduces side reactions, resulting safer battery performance. Furthermore, NASICON is more compatible ion systems, can help electrode interface issues, simple process. characteristics highly desirable vital material aim this study prepare characterize ceramic membranes that contain Na3.06Zr2Si2PO12 Na3.18Zr2Si2PO12, measure stability seawater serve as solid electrolytes. surface analysis revealed powder specific 7.17 m2 g−1, than Na3.18Zr2Si2PO12 powder’s 6.61 g−1. During measurement, samples showed ionic conductivities 8.5 × 10−5 6.19 10−4 S cm−1. Using platinum/carbon (Pt/C) catalyst source cathodes (Na+), were charged discharged using different current values (50 100 µA) testing. In cell, membrane Pt/C catalysts 0.00033 g platinum content was used assess reproducibility constant 2 h. After h operation, charging discharging voltage efficiency 71% (50/100 83.5% (100 µA). electric power level observed number operating cycles.

Язык: Английский

---