Enhanced performance of solid polymer electrolytes combining poly(vinylidene fluoride-co-hexafluoropropylene), metal-organic framework and ionic liquid for advanced solid state lithium-ion batteries DOI Creative Commons
Vera M. Macedo, João C. Barbosa, Hugo Salazar

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 90, P. 111919 - 111919

Published: May 4, 2024

The search for sustainable and high-performance materials lithium-ion batteries is leading to significant advances in solid polymer electrolyte (SPE) technology. However, the current drawbacks of this approach prove need further research development field. Herein, novel ternary electrolytes have been developed using varying loads MOF-808 metal-organic framework [BMIM][SCN] ionic liquid (IL) incorporated a poly(vinylidene fluoride-co-hexafluoropropylene) matrix. were evaluated at morphological, structural, thermal, mechanical electrochemical levels, their performance cycling battery testing was assessed. results showed homogeneous structure throughout all samples good dispersion distinct components. polar phase degree crystallinity are increased with increasing IL content, thermal properties appropriate application. conductivity reaches maximum values 4.68 × 10−5 S‧cm−1 room temperature, lithium transference numbers up 0.65, high stability, making them well-suited applications. assembled stability after 50 cycles C/10 discharge capacity value 150 mAh‧g−1 temperature tested/derived. obtained show potential system electrolytes.

Language: Английский

Enhanced High-Temperature Cycling Stability of Garnet-Based All Solid-State Lithium Battery Using a Multi-Functional Catholyte Buffer Layer DOI Creative Commons
Leqi Zhao, Yijun Zhong, Chencheng Cao

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Feb. 19, 2024

The pursuit of safer and high-performance lithium-ion batteries (LIBs) has triggered extensive research activities on solid-state batteries, while challenges related to the unstable electrode-electrolyte interface hinder their practical implementation. Polymer been used extensively improve cathode-electrolyte in garnet-based all-solid-state LIBs (ASSLBs), it introduces new concerns about thermal stability. In this study, we propose incorporation a multi-functional flame-retardant triphenyl phosphate additive into poly(ethylene oxide), acting as thin buffer layer between LiNi

Language: Английский

Citations

14

Optimization Design of Fluoro‐Cyanogen Copolymer Electrolyte to Achieve 4.7 V High‐Voltage Solid Lithium Metal Battery DOI Creative Commons

Weijian Xu,

Weiliang Dong,

Jianzhou Lin

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(31)

Published: June 18, 2024

Abstract Raising the charging voltage and employing high‐capacity cathodes like lithium cobalt oxide (LCO) are efficient strategies to expand battery capacity. High voltage, however, will reveal major issues such as electrolyte's low interface stability weak electrochemical stability. Designing high‐performance solid electrolytes from standpoint of substance genetic engineering design is consequently vital. In this instance, stable SEI CEI layers constructed, a 4.7 V high‐voltage copolymer electrolyte (PAFP) with fluoro‐cyanogen group generated by polymer molecular engineering. As result, PAFP has an exceptionally broad window (5.5 V), high Li + transference number (0.71), ultrahigh ionic conductivity (1.2 mS cm −2 ) at 25 °C. Furthermore, Li||Li symmetric cell possesses excellent 2000 cycles 1 mA . The LCO|PAFP|Li batteries have 73.7% retention capacity after 1200 cycles. Moreover, it still cycling V. These characteristics above also allow run stably loading, showing proposed provides new insights into resistant electrolytes.

Language: Английский

Citations

12

Microporous Materials in Polymer Electrolytes: The Merit of Order DOI
Ming Xu, Danyang Li,

Yuhe Feng

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(35)

Published: June 25, 2024

Solid-state batteries (SSBs) have garnered significant attention in the critical field of sustainable energy storage due to their potential benefits safety, density, and cycle life. The large-scale, cost-effective production SSBs necessitates development high-performance solid-state electrolytes. However, manufacturing relies heavily on advancement suitable Composite polymer electrolytes (CPEs), which combine advantages ordered microporous materials (OMMs) electrolytes, meet requirements for high ionic conductivity/transference number, stability with respect electrodes, compatibility established processes, cost-effectiveness, making them particularly well-suited mass SSBs. This review delineates how structural ordering dictates fundamental physicochemical properties OMMs, including ion transport, thermal transfer, mechanical stability. applications prominent OMMs are critically examined, such as metal-organic frameworks, covalent organic zeolites, CPEs, highlighting facilitates fulfillment property requirements. Finally, an outlook is provided, exploring CPEs can be enhanced through dimensional design importance uncovering underlying "feature-function" mechanisms various CPE types underscored.

Language: Английский

Citations

12

Engineering a well-connected ion-conduction network and interface chemistry for high-performance PVDF-based polymer-in-salt electrolytes DOI
Xiaodan Li, Yucheng Wang,

Qingfeng Zhou

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(13), P. 7645 - 7653

Published: Jan. 1, 2024

We incorporate HFA into PVDF-based polymer-in-salt solid electrolyte to form n-AGGs with continuous Li-ion transport path and a LiF-rich SEI, enhancing both ionic conductivity stability. NCM622‖Li cells stably operate over 600 cycles at 0.2C.

Language: Английский

Citations

9

Enhanced performance of solid polymer electrolytes combining poly(vinylidene fluoride-co-hexafluoropropylene), metal-organic framework and ionic liquid for advanced solid state lithium-ion batteries DOI Creative Commons
Vera M. Macedo, João C. Barbosa, Hugo Salazar

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 90, P. 111919 - 111919

Published: May 4, 2024

The search for sustainable and high-performance materials lithium-ion batteries is leading to significant advances in solid polymer electrolyte (SPE) technology. However, the current drawbacks of this approach prove need further research development field. Herein, novel ternary electrolytes have been developed using varying loads MOF-808 metal-organic framework [BMIM][SCN] ionic liquid (IL) incorporated a poly(vinylidene fluoride-co-hexafluoropropylene) matrix. were evaluated at morphological, structural, thermal, mechanical electrochemical levels, their performance cycling battery testing was assessed. results showed homogeneous structure throughout all samples good dispersion distinct components. polar phase degree crystallinity are increased with increasing IL content, thermal properties appropriate application. conductivity reaches maximum values 4.68 × 10−5 S‧cm−1 room temperature, lithium transference numbers up 0.65, high stability, making them well-suited applications. assembled stability after 50 cycles C/10 discharge capacity value 150 mAh‧g−1 temperature tested/derived. obtained show potential system electrolytes.

Language: Английский

Citations

9