The Modulation of Cross-Linking Density in Gel Polymer Electrolyte for the Inhibition of Lithium Dendrite DOI

huashuo jin,

Hao Wei, Cancan Zhang

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: 6(11), P. 8309 - 8318

Published: Nov. 8, 2024

The high theoretical capacity and low electrochemical potential make lithium metal the most promising material to replace graphite anode. However, dendrite growth is key problem that limits development of batteries. As a solid electrolyte, gel polymer electrolyte (GPE) possesses certain ability inhibit dendrites compared with liquid but inhibition mechanism not very clear. In this work, through regulation GPE cross-linking density, we verify cross-linked network has influence on solvation structure ions. increased density induces Li+ solvated sheath dominated by contact ion pairs/solvent-separated pairs aggregates, which conducive formation stable LiF-rich SEIs resist dendrites. GPE-based LiFePO4 full battery also exhibits retention rate 81.9% even after 220 cycles at 0.2C 90.1% 140 0.5C. inhibiting described for first time, provides better idea design GPE.

Language: Английский

Cis- and trans-diamide derived polyimide endowing different built-in electric field to affect the Li-ions storage ability DOI
Wen Chen, Xuezhen Chen,

Fei Nie

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 117, P. 116196 - 116196

Published: March 14, 2025

Language: Английский

Citations

0
Ceramic–Polymer Composite Solid‐State Electrolytes for Solid‐State Lithium Metal Batteries: Mechanism, Strategy, and Prospect DOI
Peng Chen, Bing Ding, Hui Dou

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Abstract The low energy density and safety problems of lithium‐ion batteries based on liquid electrolyte have set off a new wave high specific capacity battery design to meet the need future market. Solid‐state lithium metal has been widely concerned for its density, safety, electrochemical stability. Especially, polymer‐based solid‐state electrolytes (polymer SSEs) attracted much attention due good interfacial contact, flexible mechanical properties, physical/chemical However, deficiencies ionic conductivity weak strength limit further development polymer SSEs. Here, hybrid ceramic–polymer composite (CSSEs), specifically consisted polymers inorganic ceramic active fillers, can achieve conductivity, excellent Li dendrite growth inhibition. Based intrinsic characteristics polymers, this review expounds strategies improve performance CSSEs. screening modification fillers in recent years, including structural design, surface modification, interface engineering, are reviewed. Finally, core ideas existing designs, proposed feasible solutions, aiming at providing industrialization CSSEs summarized.

Language: Английский

Citations

0
The Modulation of Cross-Linking Density in Gel Polymer Electrolyte for the Inhibition of Lithium Dendrite DOI

huashuo jin,

Hao Wei, Cancan Zhang

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: 6(11), P. 8309 - 8318

Published: Nov. 8, 2024

The high theoretical capacity and low electrochemical potential make lithium metal the most promising material to replace graphite anode. However, dendrite growth is key problem that limits development of batteries. As a solid electrolyte, gel polymer electrolyte (GPE) possesses certain ability inhibit dendrites compared with liquid but inhibition mechanism not very clear. In this work, through regulation GPE cross-linking density, we verify cross-linked network has influence on solvation structure ions. increased density induces Li+ solvated sheath dominated by contact ion pairs/solvent-separated pairs aggregates, which conducive formation stable LiF-rich SEIs resist dendrites. GPE-based LiFePO4 full battery also exhibits retention rate 81.9% even after 220 cycles at 0.2C 90.1% 140 0.5C. inhibiting described for first time, provides better idea design GPE.

Language: Английский

Citations

0