Strategies for rational design of polymer-based solid electrolytes for advanced lithium energy storage applications

Energy storage materials, Journal Year: 2022, Volume and Issue: 52, P. 430 - 464

Published: Aug. 15, 2022

Language: Английский

---

Ion–Dipole Interaction Regulation Enables High‐Performance Single‐Ion Polymer Conductors for Solid‐State Batteries

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(32)

Published: June 21, 2022

Solid polymer electrolytes with large ionic conductivity, high transference number, and good interfacial compatibility electrodes are highly desired for solid-state batteries. However, unwanted polarizations side reactions occurring in traditional dual-ion conductors hinder their practical applications. Here, single-ion (SIPCs) exceptional selectivity Li-ion conduction (Li-ion number up to 0.93), room-temperature conductivity of about 10-4 S cm-1 , a wide electrochemical stability window (>4.5 V, vs Li/Li+ ) prepared by precisely regulating the ion-dipole interactions between Li+ carbonyl/cyano groups. The resulting SIPCs show an excellent Li metal during long-term cycling at room temperature 60 °C. LiFePO4 -based cells containing exhibit rate performance range from -20 90 By same way interaction regulation, sodium- potassium-based both cationic numbers also prepared. findings this work provide guidance development high-performance other metal-ion systems beyond .

Language: Английский

---

Macromolecular Design of Lithium Conductive Polymer as Electrolyte for Solid‐State Lithium Batteries

Small, Journal Year: 2020, Volume and Issue: 17(3)

Published: Dec. 21, 2020

In the development of solid-state lithium batteries, solid polymer electrolyte (SPE) has drawn extensive concerns for its thermal and chemical stability, low density, good processability. Especially SPE efficiently suppresses formation dendrite promotes battery safety. However, most is derived from matrix with simple functional group, which suffers ionic conductivity, reduced mechanical properties after conductivity modification, bad electrochemical lithium-ion transference number. Appling macromolecular design multiple groups to accepted as a strategy solve problems fundamentally. this review, based on conducting summarized including copolymerization, network construction, grafting. Meanwhile, construction single-ion conductor also focused herein. Moreover, synergistic effects between designed matrix, salt, fillers are reviewed objective further improve performance SPE. At last, future studies proposed in batteries high energy density durability.

Language: Английский

---

Recent advances of composite electrolytes for solid-state Li batteries

Journal of Energy Chemistry, Journal Year: 2021, Volume and Issue: 67, P. 524 - 548

Published: Nov. 15, 2021

Language: Английский

---

A Critical Review for an Accurate Electrochemical Stability Window Measurement of Solid Polymer and Composite Electrolytes

Materials, Journal Year: 2021, Volume and Issue: 14(14), P. 3840 - 3840

Published: July 9, 2021

All-solid-state lithium batteries (ASSLB) are very promising for the future development of next generation battery systems due to their increased energy density and improved safety. ASSLB employing Solid Polymer Electrolytes (SPE) Composite (SCE) in particular have attracted significant attention. Among several expected requirements a system (high ionic conductivity, safety, mechanical stability), increasing cycle life relies on electrochemical stability window SPE or SCE. Most published works target importance conductivity (undoubtedly crucial parameter) often identify Electrochemical Stability Window (ESW) electrolyte as secondary parameter. In this review, we first present summary recent publications SCE with focus analysis stability. The goal second part is propose review optimized methods, leading better understanding evaluation ESW which is, once again, critical parameter high performance applications.

Language: Английский

---

Tortuosity Modulation toward High‐Energy and High‐Power Lithium Metal Batteries

Advanced Energy Materials, Journal Year: 2021, Volume and Issue: 11(12)

Published: Feb. 8, 2021

Abstract Lithium metal batteries (LMBs) are well recognized as potentially high‐energy systems to power portable electronics and electric vehicles. However, LMBs always undergo uncontrollable lithium deposition in metallic anodes due inhomogeneous ion flux, which causes limited output impedes their practical applications. Low‐tortuous arrays have been intensively investigated guide the fast transport of ions homogeneous growth lithium, thereby achieving high‐power LMBs. In this review, correlation between electrochemical kinetics tortuosity is first disclosed, especially anodes. Subsequently, material design strategies for low‐tortuous systematically summarized, including regulating lithium‐ion field, nucleation by insulating, conductive, lithiophilic arrays, respectively. At same time, also efficient guiding cathodes solid composite electrolytes Finally, currently existing challenges modulating structures achieve discussed.

Language: Английский

---

The Study of Plasticized Sodium Ion Conducting Polymer Blend Electrolyte Membranes Based on Chitosan/Dextran Biopolymers: Ion Transport, Structural, Morphological and Potential Stability

Polymers, Journal Year: 2021, Volume and Issue: 13(3), P. 383 - 383

Published: Jan. 26, 2021

The polymer electrolyte system of chitosan/dextran-NaTf with various glycerol concentrations is prepared in this study. electrical impedance spectroscopy (EIS) study shows that the addition increases ionic conductivity at room temperature. highest conducting plasticized maximum DC 6.10 × 10−5 S/cm. Field emission scanning electron microscopy (FESEM) used to investigate effect plasticizer on film morphology. interaction between components confirmed from existence O–H, C–H, carboxamide, and amine groups. XRD determine degree crystallinity. transport parameters number density (n), mobility (µ), diffusion coefficient (D) ions are determined using percentage free ions, due asymmetric vibration (υas(SO3)) symmetric (υs(SO3)) bands. dielectric property relaxation time proved non-Debye behavior system. This model further verified by incomplete semicircle arc Argand plot. Transference numbers ion (tion) (te) for identified be 0.988 0.012, respectively, confirming dominant charge carriers. tion value examine contribution values ions. Linear sweep voltammetry (LSV) potential window 2.55 V, indicating it a promising application electrochemical energy storage devices.

Language: Английский

---

Toward multifunctionality of PEO/PMMA/MMT hybrid polymer nanocomposites: Promising morphological, nanostructural, thermal, broadband dielectric, and optical properties

Journal of Physics and Chemistry of Solids, Journal Year: 2022, Volume and Issue: 166, P. 110708 - 110708

Published: March 26, 2022

Language: Английский

---

Regulating the Li-O coordination in polymer electrolytes via semi-ionic C-F bonds for high-voltage solid lithium metal batteries

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149497 - 149497

Published: Feb. 10, 2024

Language: Английский

---

Towards varying compositions PEO/PMMA/P(VDF-HFP) ternary polymer blend films for versatile flexible dielectrics over 20 Hz to 1GHz broadband device technologies

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 112011 - 112011

Published: Feb. 1, 2025

Language: Английский

---