Related Experiment Video
Updated: May 15, 2025

Multimedia Battery for Assessment of Cognitive and Basic Skills in Mathematics BM-PROMA
Published on: August 28, 2021
La2O3 Filler's Stabilization of Residual Solvent in Polymer Electrolyte for Advanced Solid-State Lithium-Metal
Yaping Zeng1, Le Zhao1, Jiaming Zhang1
1Hunan Provincial Key Laboratory of Chemical Power Sources College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. China.
Abstract:
Polymer solid electrolytes (SEs) with high safety and flexibility are ideal for advanced lithium-metal solid-state batteries (SSBs). Among various polymer SEs, polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) polymer SEs have gained increased attention for their high dielectric constants, high ionic conductivity, and excellent flexibility. However, severe side reactions at the interface caused by the decomposition of residual DMF solvent significantly reduce the cycle life of PVDF-HFP-based SSBs. Herein, La2O3 nanoparticles are used as new inorganic fillers to form a PVDF-HFP/LiFSI/La2O3-40% composite polymer electrolyte (PVDF-HFP/La2O3 CPE). Benefiting from the interaction between La2O3 and N,N-dimethylformamide (DMF) solvent molecules, the cell cycling stability is greatly improved. In addition, the PVDF-HFP/LiFSI solid electrolyte (PVDF-HFP SE) containing 40 wt% La2O3 has the highest ionic conductivity of 1.33 × 10-3 S cm-1 at 25 °C. It also exhibits a higher lithium-ion transference number of 0.52 and lower polarization. The PVDF-HFP/La2O3 CPE here ensures high ionic conductivity and stable interface chemistry in SSB, demonstrating a promising application potential.
Related Concept Videos
Language
Corballis and Suddendorf (2007) and Tomasello and Rakoczy (2003) highlight the role of language in...
Social Loafing
Matrix-Assisted Laser Desorption Ionization (MALDI)
The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix material. The...
Definition of Laplace Transform
Lenz's Law
If a bar magnet is moved toward a coil such that the magnetic flux...
lncRNA - Long Non-coding RNAs

