Journal Article

PUBDB-2024-00257

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Designing Solvated Double‐Layer Polymer Electrolytes with Molecular Interactions Mediated Stable Interfaces for Sodium Ion Batteries

Pan, J. ; Zhang, Y. ; Sun, F.Extern* ; Osenberg, M.Extern* ; Hilger, A.Extern* ; Manke, I.Extern* ; Cao, R. ; Dou, S. X. ; Fan, H. J. (Corresponding author)

2023
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/anie.202219000

Abstract: Unstable cathode-electrolyte and/or anode-electrolyte interface in polymer-based sodium-ion batteries (SIBs) will deteriorate their cycle performance. Herein, a unique solvated double-layer quasi-solid polymer electrolyte (SDL-QSPE) with high Na$^+$ ion conductivity is designed to simultaneously improve stability on both cathode and anode sides. Different functional fillers are solvated with plasticizers to improve Na$^+$ conductivity and thermal stability. The SDL-QSPE is laminated by cathode- and anode-facing polymer electrolyte to meet the independent interfacial requirements of the two electrodes. The interfacial evolution is elucidated by theoretical calculations and 3D X-ray microtomography analysis. The Na$_{0.67}$Mn$_{2/3}$Ni$_{1/3}$O$_2$|SDL-QSPE|Na batteries exhibit 80.4 mAh g$^{−1}$ after 400 cycles at 1 C with the Coulombic efficiency close to 100 %, which significantly outperforms those batteries using the monolayer-structured QSPE.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. PETRA Beamline P05 (PETRA III)

Appears in the scientific report 2023

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Database coverage:
; Chemical Reactions ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 15 ; Index Chemicus ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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