Pires Da Veiga, Leonardo; Sharad Bhoir, Shubam; Brüllmann, Dominic; Malburet, Samuel; Müller, Simon; Stalder, Micheal; Brivio, Claudio; Ingenito, Andrea (2024). Investigating the Role of a P(VDF−TrFE) Ferroelectric Separator in Li‐Metal Pouch Cells using Electrochemical Impedance Spectroscopy Batteries & Supercaps, 7(4), pp. 1-8. Wiley 10.1002/batt.202300591
|
Text
Batteries Supercaps - 2024 - Pires Da Veiga - Investigating the Role of a P VDF TrFE Ferroelectric Separator in Li‐Metal.pdf - Published Version Available under License Creative Commons: Attribution-Noncommercial-No Derivative Works (CC-BY-NC-ND). Download (1MB) | Preview |
This study explores the efficacy of employing P(VDF−TrFE), a ferroelectric copolymer, to mitigate the formation of dead lithium in Li-metal anodes when paired with carbonate electrolytes. Employing non-solvent induced phase separation (NIPS), self-standing membranes and coatings on polypropylene (PP) separators were prepared, both demonstrating a homogenous cellular pore structure and excellent ionic conductivity. Rigorous evaluation in pouch cell formats, featuring a thin Li-metal anode (50 μm), a high-loading NMC532 cathode (3 mAhcm−2), and a carbonate electrolyte, reveals the superior performance of cells with P(VDF−TrFE)-coated PP separators. Notably, these cells exhibit slower and more consistent capacity fading, as well as the weakest increase in impedance, as evidenced by Electrochemical Impedance Spectroscopy (EIS) investigations. This work underscores the promising role of P(VDF−TrFE) as a key material for addressing challenges associated with dead lithium, offering valuable insights for advancing Li-metal battery technologies in practical applications.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
School of Engineering and Computer Science > Intelligente industrielle Systeme (I3S) School of Engineering and Computer Science > Intelligente industrielle Systeme (I3S) > I3S / Prozessoptimierung in der Fertigung School of Engineering and Computer Science |
Name: |
Pires Da Veiga, Leonardo; Sharad Bhoir, Shubam; Brüllmann, Dominic; Malburet, Samuel; Müller, Simon  0000-0001-7518-9715; Stalder, Micheal 0000-0002-3251-5020; Brivio, Claudio and Ingenito, Andrea |
Subjects: |
Q Science > QD Chemistry T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
ISSN: |
2566-6223 |
Publisher: |
Wiley |
Funders: |
[UNSPECIFIED] Horizon 2020 |
Projects: |
[UNSPECIFIED] Hindering Dendrite Growth in Lithium Metal Batteries |
Language: |
English |
Submitter: |
Michael Stalder |
Date Deposited: |
01 May 2024 14:57 |
Last Modified: |
01 May 2024 14:57 |
Publisher DOI: |
10.1002/batt.202300591 |
Related URLs: |
|
ARBOR DOI: |
10.24451/arbor.21822 |
URI: |
https://arbor.bfh.ch/id/eprint/21822 |
Actions (login required)
 |
View Item |