Hierarchical-structural design of ultrathin composite electrolytes for high-stability solid-state lithium batteries: From “polymer-in-salt” to “polymer-in-ceramic”

Nano Energy, Journal Year: 2025, Volume and Issue: 135, P. 110644 - 110644

Published: Jan. 5, 2025

Language: Английский

---

New Nitrate Additive Enabling Highly Stable and Conductive SEI for Fast‐Charging Lithium Metal Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(49)

Published: Aug. 20, 2024

Abstract Polyester‐based electrolytes formed via in situ polymerization, have been regarded as one of the most promising solid electrolyte systems. Nevertheless, it is still a great challenge to address issue their high reactivity with metallic lithium anode by optimizing components and properties interphase (SEI). Herein, new class N‐containing additive, isopropyl nitrate (ISPN) that can be miscible ester solvents demonstrated, chemically stable ion‐conductive LiF‐Li 3 N composite SEI constructed. In addition, ISPN induce formation anion‐enriched solvation structures reduces desolvation barrier Li + , resulting fast transport . With addition ISPN, ionic conductivity has nearly doubled, reaching 5.3 × 10 −4 S cm −1 What's more, LiFePO 4 (LFP)|ISPN‐PTA|Li cell exhibits exceptional cycle stability charging capabilities, maintaining cycling for 850 cycles at C rate. Even when paired high‐voltage cathode, LiNi 0.6 Co 0.2 Mn O 2 (NCM622)|ISPN‐PTA|Li achieves an impressive capacity retention 97.59% after 165 5 C. This study offers novel approach ester‐based polymer electrolytes, paving way toward development high‐energy metal battery technologies.

Language: Английский

---

Recent Progress in Gel Polymer Electrolyte for Lithium Metal Batteries

Giant, Journal Year: 2024, Volume and Issue: 20, P. 100337 - 100337

Published: Aug. 23, 2024

Language: Английский

---

Nanowires for Solid‐State Lithium Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 14, 2024

Abstract A vital approach to accessing high‐safety and high‐energy‐density lithium batteries is develop solid‐state electrolytes (SSEs) instead of liquid electrolytes. However, lithium‐ion transport interface stability issues puzzle the construction (SSLBs). Thus, developing fast‐ionic conductors with high electrochemical performances chemical crucial SSLBs. Nanowires (NWs) possess aspect ratios for maintaining carrier along radial direction, thus being extensively employed in SSLBs enhancement ion efficiency, mechanical properties, thermostability, flame retardancy, between electrodes electrolytes, consequently boosting cycle safety In this work, advances NWs SSLBs, from rational design synthesis strategies applications composite cathodes, anode materials, SSEs are systematically reviewed. The key role mechanism SSE performance by introducing concluded detail. Finally, existing challenges anticipated prospects future development advanced nanowire‐based summarized demonstrated. This review aims provide a comprehensive understanding facilitate application

Language: Английский

---

Photoexcitation‐Enhanced High‐Ionic Conductivity in Polymer Electrolytes for Flexible, All‐Solid‐State Lithium‐Metal Batteries Operating at Room Temperature

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 29, 2024

Abstract Designing solid polymer electrolytes (SPEs) with high ionic conductivity for room‐temperature operation is essential advancing flexible all‐solid‐state energy storage devices. Innovative strategies are urgently required to develop SPEs that safe, stable, and high‐performing. In this work, we introduce photoexcitation‐modulated heterojunctions as catalytically active fillers within SPEs, guided by photocatalytic design principles, meanwhile employ natural bacterial cellulose improve the compatibility poly(ethylene oxide), coordination environment of lithium salts, optimize both ion transport mechanical properties. situ photothermal experiments theoretical calculations reveal strong photogenerated electric field produced trace oxide) under photoexcitation significantly enhances salt dissociation, increasing concentration mobile Li + . This results in a substantial increase conductivity, reaching 0.135 mS cm −1 at 25 °C, transference number 0.46. The lithium‐metal pouch cells exhibit an impressive discharge capacity 178.8 mAh g even after repeated bending folding, demonstrate exceptional long‐term cycling stability, retaining 86.7 % their initial 250 cycles 1 C (25 °C). research offers novel approach developing high‐performance batteries.

Language: Английский

---

Dynamic regulation of lithium ions eliminating the lithium dendrite formation

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161452 - 161452

Published: March 1, 2025

Language: Английский

---

High Proton Conductivity in xCuO/(1‐x)CeO₂ Electrolytes Induced by CuO Self‐Nucleation and Electron‐Ion Coupling

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Operating within the 300-500 °C range, low-temperature solid oxide fuel cells (LT-SOFCs) enable efficient and sustainable energy conversion, addressing limitations of conventional high-temperature SOFCs. However, achieving >0.1 S cm-1 ionic conductivity in electrolytes remains challenging. Here, a novel approach utilizing CuO self-nucleation electron-ion (E-I) coupling xCuO/(1-x) CeO2 (CCO) semiconductor membranes (x = 0-0.4) is presented. At optimal 0.2CuO/0.8CeO2 composition, exceeds 0.15 cm-1, driven by E-I at CuO/CeO2 heterojunction. This creates built-in electric field (BIEF) via interfacial charge transfer, facilitating ion transport lowering activation for migration. The dual-conduction pathway enabled not only facilitates electronic transfer but also optimizes kinetics, exceptional power densities 750-900 mW cm-2 500-550 78 300 °C. Density functional theory (DFT) calculations further validate role Cu2+ Ce4+ valence states generating enhancing mobility. innovative positions as state-of-the-art electrolyte, building critical conductivity-performance gap LT-SOFCs. study pioneers LT-SOFC innovation leveraging electrode-electrolyte synergy, unlocking superior practical applicability.

Language: Английский

---

Covalent organic frameworks with silsesquioxane and quinoline units as multifunctional separator modifier for stable Lithium–Sulfur batteries

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 643, P. 236994 - 236994

Published: April 14, 2025

Language: Английский

---

Nd2O3 composite binder in cathodes to accelerate Li-ion transfer in lithium-sulfur cathodes

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162807 - 162807

Published: April 1, 2025

Language: Английский

---

Anchoring Side Chains to Carbonate Groups for Reviving Stable Polycarbonate-Based Solid-State Lithium Metal Batteries

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Polycarbonate-based electrolytes are ideal for solid-state lithium metal batteries (LMBs) due to their wider electrochemical windows and considerable ionic conductivities compared with conventional solid polymer electrolytes. However, polycarbonates encounter severe interfacial side reactions metal, leading the degradation of polymers. Herein, a spontaneously formed restricted conformation is designed via in situ anchoring chains suppress polycarbonate-based The enables shield protect degradable ester bonds cyclic carbonates, suppressing contact between anodes. As proof concept, protected electrolyte demonstrates stable cycling capability Li/Li cell beyond 1000 h at current density 0.5 mA cm-2, assembled LiNi0.8Co0.1Mn0.1O2/Li pouch also achieves similar improvement performance. This work indicates that strategy constructing conformations feasible avenue fabricating highly LMBs.

Language: Английский

---