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US 8,043,986 B2Granted
Sealing glass composition, method and article
AssigneeGeneral Electric Company
InventorsDong-Sil Park, Jian Wu, Mamatha Nagesh, Sundeep Kumar, Craig Stringer, Digamber Porob, Vinayak Hassan Vishwanath
Life of this patent
Estimating the term…
Abstract
A sealing glass for an energy storage device is provided. The sealing glass includes silicon dioxide, boron oxide, aluminum oxide, sodium oxide and zirconium oxide. Methods for preparing the sealing glass and the energy storage device incorporating the sealing glass are also provided.
Claims21
An energy storage device, comprising:
- an electrochemical cell incorporating a sealing glass consisting of:
- silicon dioxide that is present in an amount in a range of from about 30 weight percent to about 70 weight percent;
- boron oxide that is present in an amount in a range of from about 10 weight percent to about 40 weight percent;
- aluminum oxide that is present in an amount in a range of from about 5 weight percent to about 30 weight percent;
- sodium oxide that is present in an amount in a range of from about 4 weight percent to about 16 weight percent;
- zirconium oxide that is present in an amount in a range of from about 0.1 weight percent to about 10 weight percent;
- and
- up to about 10 weight percent of one or more alkaline earth oxides.
5 more elements
A method, comprising:
- blending silicon dioxide, boron oxide, aluminum oxide, sodium oxide, zirconium oxide and, optionally, one or more alkaline earth oxides to form a blend consisting of silicon dioxide in an amount in a range of from about 30 weight percent to about 70 weight percent, boron oxide in an amount in a range of from about 10 weight percent to about 40 weight percent, aluminum oxide in an amount in a range of from about 5 weight percent to about 30 weight percent, sodium oxide that is present in a range of from about 4 weight percent to about 16 weight percent, zirconium oxide that is present in a range of from about 0.1 weight percent to about 10 weight percent and up to about 10 weight percent of one or more alkaline earth oxides;
- and
- forming a glass seal from the blend to join a first battery component to a second battery component.
Dependencies are inferred from the claim text.