Wang, Jiaqi published the artcileRoom-Temperature Flexible Quasi-Solid-State Rechargeable Na-O2 Batteries, HPLC of Formula: 143-24-8, the main research area is flexible sodium oxygen battery solid state polymer electrolyte nanocomposite.
Rechargeable Na-O2 batteries have been regarded as promising energy storage devices because of their high energy d., ultralow overpotential, and abundant resources. Unfortunately, conventional Na-O2 batteries with a liquid electrolyte often suffer from severe dendrite growth, electrolyte leakage, and potential H2O contamination toward the Na metal anode. Here, we report a quasi-solid-state polymer electrolyte (QPE) composed of poly(vinylidene fluoride-co-hexafluoropropylene)-4% SiO2-NaClO4-tetraethylene glycol di-Me ether for rechargeable Na-O2 batteries with high performance. D. functional theory calculations reveal that the fluorocarbon chains of QPE are beneficial for Na+ transfer, resulting in a high ionic conductivity of 1.0 mS cm-1. Finite element method simulations show that the unique nanopore structure and high dielec. constant of QPE can induce a uniform distribution of the elec. field during charge/discharge processes, thus achieving a homogeneous deposition of Na without dendrites. Moreover, the nonthrough nanopore structure and hydrophobic behavior resulting from fluorocarbon chains of QPE could effectively protect Na anode from H2O erosion. Therefore, the fabricated quasi-solid-state Na-O2 batteries exhibit an average Coulombic efficiency of up to 97% and negligible voltage decay during 80 cycles at a discharge capacity of 1000 mAh g-1. As a proof of concept, flexible pouch-type Na-O2 batteries were assembled, displaying stable electrochem. performance for ~400 h after being bent from 0 to 360°. This work demonstrates the application of the quasi-solid-state electrolyte for high-performance flexible Na-O2 batteries. On the basis of a quasi-solid-state electrolyte, flexible Na-O2 batteries with high electrochem. performance are achieved for broad applications.
ACS Central Science published new progress about Adsorption energy. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, HPLC of Formula: 143-24-8.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem