CPC B60L 50/64 (2019.02) [B60L 58/26 (2019.02); F04D 25/0673 (2013.01); F04D 29/601 (2013.01); H01M 10/425 (2013.01); H01M 10/482 (2013.01); H01M 50/209 (2021.01); H01M 50/227 (2021.01); H01M 50/242 (2021.01); H01M 50/244 (2021.01); H01M 50/271 (2021.01); H01M 50/284 (2021.01); H01M 50/296 (2021.01); H01M 50/298 (2021.01); H01M 50/342 (2021.01); H01M 50/367 (2021.01); H01M 50/507 (2021.01); H01M 50/51 (2021.01); H01M 50/517 (2021.01); H01M 50/55 (2021.01); H01M 50/553 (2021.01); H01M 50/583 (2021.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01)] | 26 Claims |
1. A battery pack comprising:
multiple battery cells, each of the multiple battery cells is provided with a battery cell anode and a battery cell cathode;
a housing having a first width side wall and a second width side wall, the housing further including a top, a bottom, and two opposing length side walls;
a first end plate and a second end plate, the first end plate positioned between the first width side wall and the multiple battery cells, and the second end plate positioned between the second width side wall and the multiple battery cells;
a middle recessed portion positioned on a top surface of each of the multiple battery cells, the middle recessed portion formed between the battery cell anode and the battery cell cathode disposed on the top portion of each of the multiple battery cells;
a surface of the middle recessed portion including at least one seal-breakable opening, the at least one seal-breakable opening is arranged to discharge a gas generated in the battery cell when broken;
when the multiple battery cells are continuously arranged and mounted in the housing, the middle recessed portions at the top portions of the multiple battery cells form a battery top portion through-slot; and
a bearing plate having a bottom portion provided with a bearing plate bottom portion through-slot, and when the bearing plate is mounted at the top portions of the multiple battery cells, the bearing plate bottom portion through-slot is press-fitted with the battery top portion through-slot to form a lateral gas discharging passage, wherein the lateral gas discharging passage has an outlet, and a distal end of the lateral gas discharging passage is sealed by a blocking plate;
a vertical gas discharging passage disposed on an inner side of the first width side wall, wherein the vertical gas discharging passage is in fluid communication with the lateral gas discharging passage; and
a ventilation guide slot positioned in an upper end of the first end plate, and the ventilation guide slot is located between the lateral gas discharging passage and the vertical gas discharging passage to enable the lateral gas discharging passage to be in fluid communication with the vertical gas discharging passage.
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