Preparation of metallic cation conducting polymers based on sterically hindered phenols containing polymeric systems
The present invention relates to ion-conducting solvent-free polymeric systems characterized as being cationic single ion conductors. The solvent-free polymer electrolytes comprise a flexible polymer backbone to which is attached a metal salt, such as a lithium, sodium or potassium salt, of a sterically hindered phenol. The solid polymer electrolyte may be prepared either by (1) attaching the hindered phenol directly to a flexible polymeric backbone, followed by neutralization of the phenolic OH's or (2) reacting the hindered phenol with a polymer precursor which is then polymerized to form a flexible polymer having phenolic OH's which are subsequently neutralized. Preferably the hindered phenol-modified polymeric backbone contains a polyether segment. The ionic conductivity of these solvent-free polymer electrolytes has been measured to be in the range of 10[sup [minus]4] to 10[sup [minus]7] S cm[sup [minus]1] at room temperature.
- DOE Contract Number:
- AC02-76CH00016
- Assignee:
- Polytechnic Univ., Brooklyn, NY (United States); Associated Universities, Inc., Washington, DC (United States)
- Patent Number(s):
- A; US 4882243
- Application Number:
- PPN: US 7-275013
- OSTI ID:
- 7020407
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360601* -- Other Materials-- Preparation & Manufacture
360606 -- Other Materials-- Physical Properties-- (1992-)
ALKALI METAL COMPOUNDS
AROMATICS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROLYTES
FABRICATION
HYDROXY COMPOUNDS
IONIC CONDUCTIVITY
LITHIUM COMPOUNDS
ORGANIC COMPOUNDS
PHENOLS
PHYSICAL PROPERTIES
POLYMERS
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
SOLID ELECTROLYTES