H - Electricity – 01 – M
Patent
H - Electricity
01
M
402/3, 319/65
H01M 4/60 (2006.01) C08G 18/02 (2006.01) C08G 65/40 (2006.01) G02F 1/15 (2006.01) H01B 1/12 (2006.01) H01M 10/40 (2006.01)
Patent
CA 2002775
ABSTRACT 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 10-4 to 10-7 S cm-1 at room temperature.
Lee Hung S.
Okamoto Yoshiyuki
Skotheim Terje A.
Bereskin & Parr
Lee Hung S.
Okamoto Yoshiyuki
Skotheim Terje A.
LandOfFree
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