Feed-through

A lithium-ion storage device, comprising:

• a housing including a part having at least one part opening;
• a feed-through placed in said at least one part opening, said feed-through including:
• one of a glass material and a glass ceramic material;
• at least one conductor embedded in said one of a glass material and a glass ceramic material;
• and
• a base body having a base body opening through which said at least one conductor embedded in said one of a glass material and a glass ceramic material is guided, and wherein said base body is seated in said at least one part opening and is hermetically sealed with said part such that the helium leakage rate is smaller than 1·10−8 mbar l/sec.

A method for producing an electrical storage device, the method comprising:

• providing a housing part having at least one housing part opening, a conductor and a base body;
• embedding said conductor in one of a glass material and a glass ceramic material;
• sealing said embedded conductor into a base body opening of said base body to form a feed-through for the housing part;
• and
• connecting said feed-through with the housing part, wherein said base body is seated in said at least one housing part opening of the housing part and is hermetically sealed with the housing part by one of welding, soldering, pressing, crimping and shrinking such that the helium leakage rate is smaller than 1·10−8 mbar l/sec.

An electrical storage device, comprising:

• a housing including a housing part having at least one housing part opening and a material thickness at least in a region around said at least one housing part opening;
• and
• a feed-through placed in said at least one housing part opening, said feed-through including:
• one of a glass material and a glass ceramic material;
• at least one conductor embedded in said one of a glass material and a glass ceramic material;
• and
• a base body seated in said at least one housing part opening and having a base body opening through which said at least one conductor embedded in said one of a glass material and a glass ceramic material is guided along a length, wherein said base body has a second thickness in a region facing the material in which the at least one conductor is embedded and a third thickness in a region facing the at least one housing part opening of the housing part, wherein the third thickness is less than the second thickness.