CPC H01J 61/366 (2013.01) [B60R 21/26 (2013.01); B60R 22/34 (2013.01); C03C 27/02 (2013.01); F42B 3/107 (2013.01); H01B 17/305 (2013.01); H01M 50/186 (2021.01); H01M 50/191 (2021.01); B60R 2021/26029 (2013.01); F42B 3/198 (2013.01)] | 20 Claims |
1. A glass-metal feedthrough, comprising:
an external conductor having a coefficient of expansion αexternal, and having an opening formed therein;
an internal conductor disposed in the opening, the internal conductor comprising iron and having a coefficient of expansion αexternal, the external conductor and the internal conductor being configured to not release nickel when in contact with a human or animal body or biological cells of a cell culture; and
a glass material surrounding the internal conductor within the opening and having a coefficient of expansion αglass, the coefficient of expansion of the internal conductor αinternal and the coefficient of expansion of the external conductor αexternal are such that a joint pressure on the internal conductor of at least 30 MPa is generated in a temperature range of 20° C. to a glass transformation temperature of the glass material.
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