Battery liquid injection vacuumizing pressure stabilizing device

A battery liquid injection vacuumizing pressure stabilizing device comprises a bearing assembly, a sealing assembly, a buffer assembly and an air exhaust assembly, the bearing assembly comprises a bearing table and a rack, the bearing table is arranged in the rack, a vacuumizing liquid injection area is arranged on the bearing table, a buffer mounting area is arranged at the top of the rack, and the buffer mounting area is located above the vacuumizing liquid injection area; the sealing assembly comprises a sealing cover and an air suction pipeline, the buffer assembly comprises a buffer tank,the buffer tank is arranged on the buffer mounting area, a sealed buffer cavity is formed in the buffer tank, an electrolyte storage groove is formed in the bottom of the sealed buffer cavity, and the air suction assembly comprises an air suction pump and a vacuum pipeline. By arranging the bearing assembly, the sealing assembly, the buffer assembly and the air exhaust assembly, electrolyte can be prevented from flowing