Ion conductive polymer electrolyte membrane and production...

Details Ion conductive polymer electrolyte membrane and production... Ion conductive polymer electrolyte membrane and production...

2005-07-01

2009-06-02

Johnson, Christina (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Molecular aligning or molecular orientating

C264S435000, C521S027000, C429S006000

Reexamination Certificate

active

07540991

ABSTRACT:
The present invention provides an electrolyte membrane formed of an ion conductive composition. Said composition contains a liquid crystalline polymer having an ionic dissociative group. Molecular chains of the liquid crystalline polymer are orientated in a specific direction. The degree of orientation α of the liquid crystalline polymer is in a range of 0.45 or more and less than 1, as defined by equation (1) as follows,in-line-formulae description="In-line Formulae" end="lead"?Degree of orientation α=(180−Δβ)/180  (1),in-line-formulae description="In-line Formulae" end="tail"?wherein Δβ is a full width at half maximum of a peak in an X-ray diffraction intensity distribution pattern obtained by measuring an intensity distribution from 0 to 360 degrees in the azimuthal angle direction, at a peak scattering angle, in an X-ray diffraction image of the electrolyte membrane. Ionic conductivity in a thickness direction of the membrane is higher than the ionic conductivity in a direction parallel to a surface of the membrane. The present invention also provides a method for manufacturing an electrolyte membrane formed of an ion conductive composition.

REFERENCES:
patent: 6187231 (2001-02-01), Sansone et al.
patent: 6586561 (2003-07-01), Litt et al.
patent: 2002/0132169 (2002-09-01), Yamamoto et al.
patent: 2004/0062969 (2004-04-01), Sakaguchi et al.
patent: 2005/0156356 (2005-07-01), Saitoh et al.
patent: 0 948 074 (1999-10-01), None
patent: 1384743 (2004-01-01), None
patent: 1 416 031 (2004-05-01), None
patent: 05-255522 (1993-10-01), None
patent: 06-251780 (1994-09-01), None
patent: 08-165360 (1996-06-01), None
patent: 2002-533890 (2002-10-01), None
patent: 2003-234015 (2003-08-01), None
patent: 2003-288916 (2003-10-01), None
patent: WO 00/39202 (2000-07-01), None

Affiliated with

Also associated with

Rating

Ion conductive polymer electrolyte membrane and production... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ion conductive polymer electrolyte membrane and production..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion conductive polymer electrolyte membrane and production... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4099234