Battery

1 . A battery comprising

a cap plate which is welded to the opening of a battery case,

an insulative holding overhang which is placed on said cap plate and protrudes to the upward direction of said cap plate,

a terminal hole which is placed on said cap plate,

a terminal material which is sealed to said terminal hole with an insulation sealing material containing an inorganic material,

an insulator which is held by said insulative holding overhang and disposed on the upside of said cap plate, and

a terminal board which is supported by said insulator and electrically connected to said terminal material.

2 . The battery according to claim 1 ,

wherein said insulative holding overhang is placed on a fixing which is welded to said cap plate.

3 . The battery according to claim 2 ,

wherein said fixing is a ring shape.

4 . The battery according to claim 2 ,

wherein said cap plate has said cap plate protrusion which protrudes upward along its rim,

said fixing has a raised portion which protrudes upward along its rim, and

said raised portion is so configured as to internally contact to said cap plate protrusion.

5 . The battery according to claim 1 ,

wherein said cap plate has a cap plate protrusion which protrudes upward along its rim, and

said insulator is placed so as to internally contact to said cap plate protrusion.

6 . The battery according to claim 5 ,

wherein said insulator is placed so as to internally contact to said raised portion.

7 . The battery according to claim 5 ,

wherein said battery case is a cylindrical shape.

8 . The battery according to claim 6 ,

wherein said battery case is a cylindrical shape.

9 . The battery according to claim 1 ,

wherein said cap plate comprises a vent valve, and

an insulator vent is placed on said insulator so as to overlap at least partly with said vent valve.

10 . The battery according to claim 9 ,

wherein said terminal board is disposed so as to overlap at least partly with said insulator vent, and

said terminal board has a vent, or a vent is formed between said terminal board and said insulator.

11 . The battery according to claim 10 ,

wherein said terminal board is equipped with a tab which is electrically connected to said terminal material,

said terminal board is most firmly fixed to another component at said tab, and

a portion where said terminal board is most firmly fixed to another component is disposed so as not to overlap with said insulator vent.

12 . The battery according to claim 1 ,

wherein said insulator is fixed to said cap plate with a space, and

said space comprises a protection element.

13 . The battery according to claim 1 ,

wherein said battery is a non-aqueous electrolyte battery.