Patent · US Active

Ceramic collars for active brazing in sodium-based thermal batteries

US9028997B2 · kind B2 · utility

0Cited by

8References

21Claims

0Family size

Assignee

General Electric Company · US

Inventors

Michael Colan Moscinski · Glenville, US
Reza Sarrafi-Nour · Clifton Park, US
Badri Narayan Ramamurthi · Niskayuna, US
Mohandas Nayak · Savanuru, IN
Darren Michael Stohr · Niskayuna, US
Sundeep Kumar · Mainz, DE
Mohamed Rahmane · Clifton Park, US
Arunabh Basak · Bengaluru, IN
Raghavendra Rao Adharapurapu · Bengaluru, IN

Key dates

Filing date	Dec 28, 2012
Grant date	May 12, 2015
Priority date	—
Expiry date	Apr 12, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4911
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present application provides for ceramic collars and metal rings for active brazing in sodium-based thermal batteries. The ceramic collar may be an alpha-alumina collar configured for active brazing, and thereby sealing, to outer and inner Ni rings for use in NaMx cells. The portions of the alpha-alumina collar active brazed to the outer and inner Ni rings may be outwardly facing and include inwardly extending recesses. The portions of the outer and inner Ni rings active brazed to the outwardly facing portions of the collar may be inwardly facing. The alpha-alumina collar may include a greater coefficient of thermal expansion than each of the outer and inner Ni rings, and the alpha-alumina collar and outer and inner Ni rings may be configured such that a portion of the outer and inner Ni rings is deformed into the inwardly extending recesses of the alpha-alumina collar after active brazing thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.