JP2013098132A5 - - Google Patents

Claims (8)

A battery short-circuit element connected to a battery having a first electrode and a second electrode,
A first electrical conductor electrically connected to the first electrode side;
A second electrical conductor electrically connected to the second electrode side;
An insulator disposed between the first electrical conductor and the second electrical conductor; a low melting point alloy layer disposed between the first electrical conductor and the second electrical conductor; A short-circuit layer having
With
The short-circuit layer insulates the first electric conductor and the second electric conductor below a predetermined temperature, and at least a part or all of the low melting point alloy layer melts above the predetermined temperature, A battery short-circuit element that short-circuits the first electrical conductor and the second electrical conductor. The insulator has an opening,
The battery according to claim 1, wherein the short-circuit layer short-circuits the first electric conductor and the second electric conductor by melting the low-melting-point alloy layer and flowing into the opening of the insulator. Short circuit element. The short-circuit layer short-circuits the first electrical conductor and the second electrical conductor by melting the low-melting-point alloy layer and deforming part or all of the insulator. The battery short-circuit element according to 1. 4. The battery short-circuit element according to claim 1, wherein the first electric conductor and the second electric conductor are made of a foil-like member or a plate-like member. 5. The first electric conductor and the second electric conductor are made of a cylindrical member, and one of the first electric conductor and the second electric conductor is disposed so as to overlap the other. Item 4. The battery short-circuit element according to any one of Items 1 to 3. The short-circuit layer is arranged in a first short-circuit region where the low-melting-point alloy layer is a part of the short-circuit region, and a first low-melting-point alloy layer whose melting point is a first temperature, The second low-melting-point alloy layer, which is disposed in a second short-circuit region that is a region different from the first short-circuit region, and has a melting point that is a second temperature different from the first temperature. The battery short-circuit element according to any one of claims. The battery short-circuit element according to any one of claims 1 to 6,
An abnormality determination unit for determining an abnormality of the battery;
A heating unit for increasing the temperature of the short-circuit layer;
A heating instruction unit that causes the heating unit to perform heating when the abnormality determination unit determines that the battery is abnormal;
Battery short circuit system. A first electrode;
A second electrode;
The battery short-circuit element according to any one of claims 1 to 6,
A battery comprising: