Ionic conducting material containing an oligoether sulphate

Details Ionic conducting material containing an oligoether sulphate Ionic conducting material containing an oligoether sulphate

2011-06-14

2011-06-14

Yuan, Dah-Wei D (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S314000, C429S317000, C429S325000

Reexamination Certificate

active

07960060

ABSTRACT:
The invention relates to an ion-conducting material containing an oligoether sulfate.The material comprises an ionic compound dissolved in a solvating polymer. The ionic compound is a mixture of a lithium bis(trifluoromethanesulfonyl)imide and of at least one lithium oligoether sulfate chosen from the lithium oligoether monosulfates corresponding to the formula R—[O—CH2—CH2)]n—O—SO3−Li+(I) in which R is a group CmH2m+1with 1≦m≦4 and 2≦n≦17, and the lithium oligoether disulfates corresponding to the formula Li+O−SO2—O—CH2—[CH2—O—CH2]p—CH2—O—SO2—O−Li+(II) in which 3≦p≦45; the overall ratio Ot/Litis less than or equal to 40, Otrepresenting the total number of O atoms provided by the solvating polymer and by the oligoether; the content of LiTFSI is such that the Ot/LiTFSI ratio is greater than or equal to 20.

REFERENCES:
patent: 5196484 (1993-03-01), Giles et al.
patent: 5700880 (1997-12-01), Sanchez et al.
patent: 6620546 (2003-09-01), Michot et al.
Shu-Wen, Hu and Shi-bi Fang, Solid electrolyte based on an inorganic salt-organic salt hybrid system, Electrochimica Acta 44 (1999) pp. 2721-2726.
H. Chen et al., “Single-Ion Conduction and Electrochemical Characteristics of Poly(Oxyethylene)/Lithium Methoxy Oligo(Oxyethylene) Sulfate Blend”, J.M.S.—Pure Appl. Chem., 1996, pp. 1273-1281. vol. A33, No. 9.
Y. Zheng et al., “Single Ion Conduction in Lithium Methoxy Oligo(Oxyethylene) Sulfate-Comblike Polyether Complex”, J.M.S.—Pure Appl. Chem., 1993, pp. 365-372, vol. A30, No. 5.
Y. Zheng et al., “Cationic Conduction in Oligoether Sale—Comblike Polyether Complex”, J. Appl. Polym. Sci., Aug. 1995, pp. 623-629, vol. 57.
F.B. Dias et al., “Trends in polymer electrolytes for secondary lithium batteries”, Journal of Power Sources, Jun. 2000, pp. 169-191, vol. 88, No. 2.
D. Benrabah, “Comparative Electrochemical Study of New Poly (oxyethylene)-Li Salt Complexes”, J. Chem. Soc., Faraday Trans., Jan. 1993, pp. 355-359, vol. 89, No. 2.
B. Yang et al., “Study on Ionic Conductive Property of Polyurethane/Oligo-Ether Sulfate Complex”, Eur. Polym. J., Sep. 2001, pp. 1813-1819, vol. 37, No. 9.
K. Xu et al., “Synthesis and Characterization of Lithium Sulfonates as Components of Molten Salt Electrolytes”, Electrochimica Acta., Oct. 1995, pp. 2401-2403, vol. 40, No. 13. Great Britain.
W. Xu et al., “Ionic Conduction of Lithium Oligo(ethyleneoxy) Phenylsulfonate and its Complex with Poly(ethylene oxide)”, Solid State Ionics, Sep. 1998, pp. 219-226, vol. 111, No. 3-4.
R.A. Colley et al., “Poly[oxymethylene-Oligo(oxyethylene)] for use in Subambient Temperature Electrochromic Devices”, Jul. 2000, Polymer Int., pp. 371-376, vol. 49, No. 4.
International Search Report dated Nov. 4, 2005.

Affiliated with

Also associated with

Rating

Ionic conducting material containing an oligoether sulphate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ionic conducting material containing an oligoether sulphate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionic conducting material containing an oligoether sulphate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2677942