| 摘要 |
Advanced implanted medical devices require long-lived, reliable power supplies. Lithium-ion batteries can be used to meet this need if they can be assured of maintaining a hermetic seal while implanted. The invention is a hermetic seal for a lithium-ion battery where the battery heater (5) is made of aluminum and the pin (1) is a conventional metal, such as platinum. The glass -to-metal seal utilizes low-temperature processable ALSG-32 glass, which has been demonstrated to bond to aluminum at temperatures below the melting point of aluminum and which has been demonstrated to exhibit excellent resistance to lithium battery electrolyte (9). ALSG­32 is a high phosphate glass having about 6.0% B2O3, 40.0% P2O5, 15.0% Na2O, 18.0% K2O, 9.0% PbO, and 12.0% Al2O3, expressed in mole percent. |
