Battery having improved headspace insulator

Details Battery having improved headspace insulator Battery having improved headspace insulator

2011-04-19

2011-04-19

Alejandro, Raymond (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Cell enclosure structure, e.g., housing, casing, container,...

C429S185000, C429S175000, C429S129000, C429S072000

Reexamination Certificate

active

07927738

ABSTRACT:
A headspace insulator for a battery cell operatively coupled to circuitry within an implantable medical device in including one or more of the following: (a) a body of electrically and thermally insulating material disposed between a battery electrode assembly and a battery cover, (b) a receiving area within the body that receives and isolates a battery feedthrough pin, (c) an indentation within the receiving area retaining the feedthrough pin within the receiving area, (d) a raised portion coupled to a battery cover providing an air gap between the cover and the headspace insulator near case-to-cover weld areas, (e) a feedthrough aperture adapted to receive a feedthrough assembly, (f) a pin aperture that receives the feedthrough pin, (g) a fillport aperture for electrolyte fluid flow through the headspace insulator, and (h) a slot that locates a battery weld bracket and isolates it from the feedthrough pin.

REFERENCES:
patent: 6040082 (2000-03-01), Haas et al.
patent: 6224999 (2001-05-01), Probst et al.

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