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Free-standing polydimethylsiloxane-based cross-linked network solid polymer electrolytes for future lithium ion battery applications.
- Source :
-
Electrochimica Acta . Jun2019, Vol. 307, p148-156. 9p. - Publication Year :
- 2019
-
Abstract
- Abstract A series of cross-linked network solid polymer electrolytes based on dual end-functionalized polydimethylsiloxane bearing reactive thiol terminal groups with poly(ethylene glycol) diglycidyl ether and pentaerythritol tetrakis(3-mercaptopropionate) have been synthesized and characterized. The obtained results can be briefed as: ionic conductivity in the range of 1.5 × 10−6 S cm−1 at room temperature to 1.6 × 10−4 S cm−1 at 90 °C, lithium ion transference number ranged from 0.15 to 0.20, electrochemical window up to 5.3 V (vs. Li+/Li), thermal resistance (T d5 ca. 254.5 °C), and tensile strength (ca. 1.6 MPa at max.). The interplay taking place between structure and physico-electrochemical properties of in these systems based on merits of poly(ethylene glycol) moieties as high solvation matrix for Li+ ions flexible along with smooth solid support from polydimethylsiloxane allow the tailoring of the design of polymer electrolytes for future all-solid-state lithium batteries. Graphical abstract Image 1 Highlights • Network solid polymer electrolytes based on polydimethylsiloxane were fabricated. • Polydimethylsiloxane usage enhanced ionic conductivity of the electrolytes. • Mechanical and thermal properties were improved by the network structures. • The solid electrolytes showed favorable electrochemical properties for batteries. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 307
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 135959714
- Full Text :
- https://doi.org/10.1016/j.electacta.2019.03.172