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):
- US 4882243; A
- Application Number:
- PPN: US 7-275013
- OSTI ID:
- 7020407
- Resource Relation:
- Patent File Date: 22 Nov 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SOLID ELECTROLYTES
FABRICATION
IONIC CONDUCTIVITY
LITHIUM COMPOUNDS
PHENOLS
POLYMERS
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
ALKALI METAL COMPOUNDS
AROMATICS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROLYTES
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
360601* - Other Materials- Preparation & Manufacture
360606 - Other Materials- Physical Properties- (1992-)