Ultrafast Li‐Rich Transport in Composite Solid‐State Electrolytes

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 31, 2025

Solid-state lithium (Li) metal batteries (SSLMBs) have garnered considerable attention due to their potential for high energy density and intrinsic safety. However, widespread development has been hindered by the low ionic conductivity of solid-state electrolytes. In this contribution, a novel Li-rich transport mechanism is proposed achieve ultrafast Li-ion conduction in composite By incorporating cation-deficient dielectric nanofillers into polymer matrices, it found that negatively charged cation defects effectively intensify adsorption Li ions, resulting concentration enrichment on surface fillers. More importantly, these formed layers are interconnected establish continuous networks. The electrolyte exhibited remarkably ion activation (0.17 eV) achieved an unprecedented approaching 1 × 10⁻3 S cm⁻1 at room temperature. Li||LiNi0.8Co0.1Mo0.1O2 full cells demonstrated extended cycling life over 200 cycles with capacity retention 70.7%. This work provides fresh insight improving constructing networks, paving way high-performance SSLMBs.

Язык: Английский

---

In situ Polymerized Solid‐State Electrolyte Enabling Inorganic‐Organic Dual‐Layered SEI Film for Stable Lithium Metal Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 5, 2025

Abstract In situ polymerization of cyclic ethers is a promising strategy to construct solid‐state lithium (Li) metal batteries with high energy density and safety. However, their practical applications are plagued by the unsatisfactory electrochemical properties polymer electrolytes unstable solid electrolyte interphase (SEI). Herein, organic perfluorodecanoic acid (PFDA) proposed as new initiator polymerize 1,3‐dioxolane (PDOL), which enables as‐obtained PDOL deliver greatly enhanced ionic conductivity broadened window. Besides, experimental data theoretical calculations demonstrate dual‐layered SEI PFDA‐derived component on top LiF at bottom constructed surface Li metal, can provide enough mechanical strength suppress dendrite growth flexibility accommodate volume fluctuations during repeated cycling. As result, symmetric cells PFDA‐induced (P‐PDOL) achieve superior plating/stripping cycle for 1400 h 0.3 mA cm −2 . Additionally, Li||P‐PDOL||LiFePO 4 (LFP) full maintain stable cycling over 300 times 0.5 C. This work offers potential simultaneously prepare high‐performance stabilize metal/PDOL interface, providing research insights advance toward applications.

Язык: Английский

---

Building a Better All-Solid-State Lithium-Ion Battery with Halide Solid-State Electrolyte

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Янв. 21, 2025

Since the electrochemical potential of lithium metal was systematically elaborated and measured in early 19th century, lithium-ion batteries with liquid organic electrolyte have been a key energy storage device successfully commercialized at end 20th century. Although battery technology has progressed enormously recent years, it still suffers from two core issues, intrinsic safety hazard low density. Within approaches to address challenges, development all-solid-state (ASSLBs) based on halide solid-state electrolytes (SSEs) displayed for application stationary devices may eventually become an essential component future smart grid. In this Review, we categorize summarize current research status SSEs different halogen anions perspective chemistry, upon which synthetic routes possessing high room-temperature ionic conductivity, compare detail performance terms activation energy, electronic interfacial contact stability, window corresponding optimization strategies each above-mentioned indicators. Finally, provide outlook unresolved challenges opportunities ASSLBs.

Язык: Английский

---

Lean-solvent solid electrolytes for safer and more durable lithium batteries: a crucial review

Energy & Environmental Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This review thoroughly examines the impact of lean-solvent solid electrolyte (LSEs) on for safer and more durable lithium batteries. It also provides a comprehensive overview existing LSEs.

Язык: Английский

---

Improving thermal stability and kinetical properties through polymer brushes towards wide-temperature solid-state lithium metal batteries

Composites Part B Engineering, Год журнала: 2025, Номер unknown, С. 112328 - 112328

Опубликована: Фев. 1, 2025

Язык: Английский

---

Regulating Interfacial Wettability for Fast Mass Transfer in Rechargeable Metal-Based Batteries

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Фев. 26, 2025

The interfacial wettability between electrodes and electrolytes could ensure sufficient physical contact fast mass transfer at the gas-solid-liquid, solid-liquid, solid-solid interfaces, which improve reaction kinetics cycle stability of rechargeable metal-based batteries (RMBs). Herein, engineering multiphase interfaces is summarized from electrolyte electrode aspects to promote interface rate durability RMBs, illustrates revolution that taking place in this field thus provides inspiration for future developments RMBs. Specifically, review presents principle macro- microscale summarizes emerging applications concerning effect on Moreover, deep insight into development provided outlook. Therefore, not only insights but also offers strategic guidance modification optimization toward stable electrode-electrolyte

Язык: Английский

---

Clarification of network structure of lithium-ion battery slurry under effects of composite conductive agent amount and carbon black to graphene mass ratio

Particuology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

---

Review and Future Perspectives on Lithium Battery Fire Safety: Focusing on Design of Organic Components

Energy & environment materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 28, 2025

The widespread use of lithium batteries has led to frequent fire hazards, which significantly threaten both human lives and property safety. One the primary challenges in enhancing safety lies flammability their organic components. As electronic devices continue proliferate, integration liquid electrolytes separators become common. However, these components are prone high volatility leakage, limits Fortunately, recent advancements solid‐state gel have demonstrated promising performance laboratory settings, providing solutions issues. Typically, improving flame retardancy involves careful design formulations or molecular structures materials. Moreover, internal interfacial interactions also play a vital role ensuring This review examines innovative strategies developed over past 5 years address concerns associated with batteries. Future next generation high‐safety should not only focus on optimizing component but emphasize rigorous operational testing. dual approach will drive further progress battery research development, overall reliability systems.

Язык: Английский

---

Self‐Regulating the Local Conjugation of Tertiary Aniline toward Highly Stable Polymer Li Metal Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Pursuing high energy/power density lithium metal batteries (LMBs) with good safety and lifespan is essential for developing next-generation energy-storage devices. Nevertheless, the uncontrollable degradation of electrolyte subsequent formation inferior electrolyte/electrode interfaces present formidable challenges to this endeavor, especially when paring transition oxide cathode. Herein, a fireproof polymeric matrix local conjugated structure constructed by 4,4'-methylenebis (N, N-diglycidylaniline) (NDA) monomer via in situ polymerization, which promotes use ester-based liquid highly stable LMBs. The tertiary anilines PNDA effectively tune Li+ solvation sheath generate conformal protective layers on electrode surfaces, resulting excellent compatibility both high-voltage cathodes Li-metal anodes. Moreover, accumulated electron endows powerful capability seize eliminate corrosive hydrofluoric acid, strikingly mitigates irreversible transformation LiNi0.8Mn0.1Co0.1O2 (NMC) particles. As result, PNDA-based Li||LiFePO4 Li||NMC cells reach electrochemical performance. This study provides promising strategy macromolecular design electrolytes emphasizes importance "local conjugation" within polymers

Язык: Английский

---

Robust and Antioxidative Quasi‐Solid‐State Polymer Electrolytes for Long‐Cycling 4.6 V Lithium Metal Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 30, 2025

Abstract Quasi‐solid‐state polymer electrolytes (QSPEs) have been considered as one of the most promising for high‐safety high‐energy‐density lithium metal batteries (LMBs). However, their inadequate mechanical properties and instability under high voltages pose significant challenges practical applications. Herein, robust antioxidative QSPEs are developed based on a polymer‐brush‐based rigid supporting film (BC‐ g ‐PLiMTFSI‐ b ‐PPFEMA, BC: bacterial cellulose, PLiMTFSI: poly(lithium (3‐methacryloyloxypropylsulfonyl) (trifluoromethylsulfonyl)imide), PPFEMA: poly(2‐(perfluorohexyl)ethyl methacrylate)). The BC nanofibril backbone can produce highly porous structure with outstanding strength. More importantly, PLiMTFSI‐ ‐PPFEMA side‐chains not only obviously increase conversion ratio easily oxidized monomers in QSPEs, but also possess strong interaction unstable electrolyte components. With such solid‐state electrolytes, Li/LiNi 0.8 Mn 0.1 Co O 2 full cell cathode loading (20.3 mg cm −2 ) exhibits specific discharge capacity 200.7 mAh −1 at 0.5 C demonstrates long lifespan 137 cycles retained 170.7 cut‐off voltage 4.5 V. 4.6 V, 147.0 after 187 be Li/LiCoO cells. This work provides feasible development strategy long‐cycling high‐voltage LMBs.

Язык: Английский

---