IP Library › Patent Application 12573259
Patent Application
App. No. 12/573,259

BATTERY WITH CONTAINER FOR ALKALINE SOLUTION

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Quick Facts
Patent No.
US None
App. No.
12/573,259
Abstract

A container for an alkaline solution comprising a polysulfone resin and an acrylate core-shell rubber impact modifier and optionally a polycarbonate. The container can be fabricated by injection molding or thermoforming from an extruded sheet. The container is well suited as a case for aqueous KOH electrolyte batteries.

Claims (20)

1 - 16 . (canceled)

17 : A battery, said battery comprising an injection-molded battery case, said battery case comprising a polysulfone resin and an an acrylate core-shell rubber impact modifier.

18 : The battery as claimed in claim 17 , wherein said battery is a storage battery.

19 : The battery as claimed in claim 17 , wherein said battery is an alkaline rechargeable battery.

20 : The battery of claim 17 , further comprising an alkaline solution held in said battery case.

21 : The battery of claim 17 , wherein said battery case comprises from about 88 wt. % to about 97 wt. % of the polysulfone and from about 3 wt. % to about 12 wt. % of the acrylate core-shell rubber impact modifier based on the total weight of the polysulfone and the rubber impact modifier.

22 : The battery of claim 17 , wherein said polysulfone is a poly(aryl ether sulfone).

23 : The battery of claim 22 , wherein said poly(aryl ether sulfone) comprises repeat units of bisphenol A residues and diphenyl sulfone moieties as represented by the structural formula:

24 : The battery of claim 22 , wherein said poly(aryl ether sulfone) is polyethersulfone.

25 : The battery of claim 22 , wherein said poly(aryl ether sulfone) is a blend of a polymer comprising repeat units of bisphenol A residues and diphenyl sulfone moieties as represented by the structural formula:

and polyethersulfone.

26 : The battery of claim 22 , wherein said poly(aryl ether sulfone) is a blend of acopolymer comprising repeat units of bisphenol A residues and diphenyl sulfone moieties as represented by structural formula:

and polyethersulfone.

27 : The battery of claim 17 , wherein said battery case further comprises a polycarbonate.

28 : The battery of claim 27 , wherein said polycarbonate is a poly(bisphenol A carbonate).

29 : The battery of claim 27 , wherein said battery case comprises from about 70 wt. % to about 92 wt. % of the polysulfone, from about 5 wt. % to about 25 wt. % of the polycarbonate, and from about 3 wt. % to about 12 wt. % of the acrylate core-shell rubber impact modifier based on the total weight of the polysulfone, polycarbonate, and rubber impact modifier.

30 : The battery of claim 17 , wherein said battery case further comprises a perfluorinated polymer.

31 : The battery of claim 30 , wherein said perfluorinated polymer is present in an amount of up to about 2 wt. % based on the total weight of resin components.

32 : The battery of claim 27 , wherein said battery case further comprises a perfluorinated polymer.

33 : The battery of claim 32 , wherein said perfluorinated polymer is present in an amount of up to about 2 wt. % based on the total weight of resin components.