Alkaline storage battery having a separator with pores

Details Alkaline storage battery having a separator with pores Alkaline storage battery having a separator with pores

2006-04-25

2006-04-25

Cantelmo, Gregg (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

C429S250000, C429S254000

Reexamination Certificate

active

07033704

ABSTRACT:
An alkaline storage battery comprises: a positive electrode plate; a negative electrode plate; a separator; and an alkaline electrolyte retained by the positive electrode plate, the negative electrode plate, and the separator, wherein the separator has a large number of pores, such that a total volume A of the pores (per unit mass; cm3/g) is in the range of 1≦A≦5, and the ratio of the volume B of pores having a diameter of 100 μm or more (per unit mass; cm3/g) to the total pore volume A is in the range of 7%≦B/A≦20% (i.e., B/A is between 0.07 and 0.2).

REFERENCES:
patent: 5609976 (1997-03-01), Ueda et al.
patent: 5830603 (1998-11-01), Oka et al.
patent: 6261721 (2001-07-01), Andrieu et al.
patent: 6743551 (2004-06-01), Imasato et al.
patent: 2000021382 (2000-01-01), None
patent: 2000123816 (2000-04-01), None

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