Ionically conducting glasses with subambient glass transition temperatures
Conference
·
OSTI ID:20019183
Cryptands and crown ethers along with the lithium salt, LiCF{sub 3}SO{sub 2}N(CH{sub 2}){sub 3}OCH{sub 3} (LiMPSA) were employed to produce a new type of amorphous electrolyte. The key to producing an amorphous phase was the mismatch between the cavity size of the macrocycle and the diameter of the cation. The addition of poly(bis-(2(2-methoxyethoxy)ethoxy)phosphazene) (MEEP) to the amorphous complex, LiMPSA/2.2.2 Cryptand, imparts improved electrochemical and viscoelastic properties. Conversely, when poly(sodium-4-styrenesulfonate) (PS4SS) is added to the amorphous complex, LiMPSA/2.2.2 Cryptand, the product crystallizes. The ionic conductivity of the MEEP rubbery electrolyte is a full order of magnitude higher when compared to the analogous PS4SS doped electrolyte (3.8 x 10{sup {minus}5} S cm{sup {minus}1} (MEEP), 1.7 x 10{sup {minus}6} S cm{sup {minus}1} (PS4SS) both at 305 K).
- Research Organization:
- Northwestern Univ., Evanston, IL (US)
- Sponsoring Organization:
- National Science Foundation
- OSTI ID:
- 20019183
- Country of Publication:
- United States
- Language:
- English
Similar Records
Enhancement of ion mobility in aluminosilicate-polyphosphazene nanocomposites
sup 7 Li NMR study of polymer electrolytes based on composites of poly(bis((methoxyethoxy)ethoxy)phosphazene) and poly(ethylene oxide)
Dimensionally stable MEEP-based polymer electrolytes and solid-state lithium batteries
Book
·
Mon Sep 01 00:00:00 EDT 1997
·
OSTI ID:522345
sup 7 Li NMR study of polymer electrolytes based on composites of poly(bis((methoxyethoxy)ethoxy)phosphazene) and poly(ethylene oxide)
Journal Article
·
· Chemistry of Materials; (United States)
·
OSTI ID:7238924
Dimensionally stable MEEP-based polymer electrolytes and solid-state lithium batteries
Journal Article
·
· Chemistry of Materials; (USA)
·
OSTI ID:5634277