Seal structure and associated method
AssigneeGeneral Electric Company
InventorsAndrew Philip Shapiro, Dong-Sil Park, Jian Wu, Craig Stringer
Life of this patent
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Abstract
A seal structure is provided for an energy storage device. The seal structure includes a first sealing glass composition and a second sealing glass composition joining an ion-conducting first ceramic to an electrically insulating second ceramic. The first sealing glass composition includes less than or equal to about 20 weight percent silica based on the weight of the first sealing glass composition. The second sealing glass composition includes greater than or equal to about 40 weight percent silica based on the weight of the second sealing glass composition. A method for making the seal structure is provided. An article comprising the seal structure is also provided.
Claims25
A seal structure, comprising:
- a first sealing glass composition and a second sealing glass composition joining an ion-conducting first ceramic to an electrically insulating second ceramic;
- and
- the first sealing glass composition comprising less than or equal to about 20 weight percent silica based on the weight of the first sealing glass composition and the second sealing glass composition comprising greater than or equal to about 40 weight percent silica based on the weight of the second sealing glass composition.
A process, comprising:
- forming a first sealing glass composition comprising less than about 20 weight percent silica;
- forming a second sealing glass composition comprising greater than about 40 weight percent silica;
- joining an ion-conducting first ceramic to an electrically insulating second ceramic in a sodium-halide battery using the first sealing glass composition on the sodium side of the battery and the second sealing glass composition on the halide side of the battery.
An article, comprising:
- an ion-conducting first ceramic and an electrically insulating second ceramic connected by a seal structure;
- the seal structure comprising a first sealing glass composition and a second sealing glass composition;
- and
- the first sealing glass composition comprising less than or equal to about 20 weight percent silica based on the weight of the first sealing glass composition and the second sealing glass composition comprising greater than or equal to about 40 weight percent silica based on the weight of the second sealing glass composition.
Dependencies are inferred from the claim text.