Battery pack with structure for suppressing entry of charged particles
A battery pack according to the present disclosure includes a battery cell, a case for storing the battery cell, a smoke exhaust port provided in the case, a smoke exhaust port provided outside the smoke exhaust port to form an electric field or a magnetic field outside the smoke exhaust port, and a trap device that traps charged particles by trapping the charged particles.
1 . A battery pack comprising:
a battery cell;
a case for housing the battery cell;
a smoke exhaust port provided on a side surface of if the case, an eave being provided outside the smoke exhaust port; and
a trap device that is provided outside the smoke exhaust port and traps a charged particle by making an electric field outside the smoke exhaust port, the trap device including:
a first electrode; and
a second electrode that is disposed to face the first electrode and has a potential different from the first electrode;
wherein
a late with a plurality of holes is provided in the smoke exhaust port the date extending from an inner side of the case to an outer side of the smoke exhaust port:
the plate constitutes the first electrode by being electrically connected to one terminal of the battery cell;
the eave constitutes the second electrode by being electrically; connected to another terminal of the battery cell; and
an electric field in a vertical direction is made between the first electrode and the second electrode.
2 . A battery pack comprising:
a battery cell;
a case for housing the battery cell;
a smoke exhaust port provided in the case; and
a trap device that is provided outside the smoke exhaust port and traps a charged particle by making an electric field outside the smoke exhaust port, the trap device including:
a first electrode; and
a second electrode that is disposed to face the first electrode and has a potential different from the first electrode,
wherein:
the smoke exhaust port is provided on a side surface of the case;
the smoke exhaust port is provided with a lid having a plurality of holes;
a plate with a plurality of holes is disposed in front of the lid, the plate hanging down in a vertical direction;
the plate constitutes the first electrode by being electrically connected to one terminal of the battery cell;
the lid constitutes the second electrode by being electrically connected to another terminal of the battery cell; and
an electric field in a horizontal direction is made between the first electrode and the second electrode.