Separator for secondary electrical accumulators with gas...

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C429S145000, C429S247000, C429S252000

Reexamination Certificate

active

08039140

ABSTRACT:
An absorbent battery separator comprising a substantially homogeneous blend of a thermoplastic polymer and of at least one inert filler, where the inert filler is pyrogenic silica, precipitated silica, titanium dioxide, magnesium carbonate, magnesium oxide and magnesium hydroxide, or mixtures thereof and, the separator has a volume porosity of at least 75% and an extraction pore size of greater than 2 microns.

REFERENCES:
patent: 3351495 (1967-11-01), Larsen et al.
patent: 3696061 (1972-10-01), Selsor et al.
patent: 4153760 (1979-05-01), Sundberg et al.
patent: 4335193 (1982-06-01), Doi et al.
patent: 4699857 (1987-10-01), Giovannoni et al.
patent: 5389463 (1995-02-01), Chang et al.
patent: 2003/0022068 (2003-01-01), Pekala
patent: 2003/0054235 (2003-03-01), Zucker
patent: 0 618 629 (1994-10-01), None
patent: 10-31991 (1998-02-01), None
patent: 10 031991 (1998-02-01), None
patent: WO 94/20995 (1994-09-01), None
patent: WO 98/47192 (1998-10-01), None
patent: WO 98/52240 (1998-11-01), None
patent: WO 99/67831 (1999-12-01), None
Material Safety Data Sheet for Hi-Sil® 132 [online], Nov. 6, 2006 [retrieved Feb. 28, 2008]. Retrieved from the Internet<URL: http://www.harwickstandard.com/web/MSDS/0020301.pdf>.
Clough et al. “Life and Capacity Improvements in Lead Acid Batteries Through Metal Control Additives.” IEEE [online] 2001 [retrieved Feb. 26, 2008]. Retrieved from the Internet:<URL: http://ieeexplore.ieee.org/iel5/7257/19575/00905105.pdf?arnumber=905105>.
International Preliminary Examination Report; PCT/EP2003/050072; Mar. 19, 2003.
Amer-Sil Separators-Gauntlets, “Amer-sil macroporous pvc/silica seperators”;retrieved online Jan. 29, 2003; XP-002229331.
V. Toniazzo, “New separators for industrial and specialty lead acid batteries”; Journal of Power Sources; vol. 107, No. 2, Apr. 30, 2002, pp. 211-216, XP002229332.
International Search Report PCT/EP03/50072; Oct. 21, 2003.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Separator for secondary electrical accumulators with gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separator for secondary electrical accumulators with gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separator for secondary electrical accumulators with gas... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4300298

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.