Patent ID: 11949123
Assignee: SHENZHEN HITHIUM ENERGY STORAGE TECHNOLOGY CO., LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. An energy-storage apparatus, comprising a smooth aluminum sheet and a top patch, wherein: the top patch defines a first pole through-hole and a first elongated hole in a length direction of the top patch, the first elongated hole comprises two side walls arranged opposite to each other in a width direction of the top patch, and each of the two side walls is provided with an extension bump; the first elongated hole on one side of the extension bump forms a first explosion-proof valve through-hole, and the first elongated hole on the other side of the extension bump forms a second pole through-hole; the first pole through-hole is spaced apart from the first elongated hole; and a connecting through-hole is defined between two extension bumps, the connecting through-hole is located between the second pole through-hole and the first explosion-proof valve through-hole, and the connecting through-hole communicates with the second pole through-hole and the first explosion-proof valve through-hole;
the top patch is attached to a top of the smooth aluminum sheet, the smooth aluminum sheet comprises a smooth aluminum-sheet body and a negative electrode protrusion, the negative electrode protrusion protrudes from the smooth aluminum-sheet body, and the negative electrode protrusion is exposed beyond the second pole through-hole; and
in a width direction of the smooth aluminum sheet, a distance between an edge of the negative electrode protrusion and an edge of the smooth aluminum-sheet body is a first distance, a distance between a hole wall of the second pole through-hole and an outer edge of the top patch is a second distance, and a difference between the first distance and the second distance ranges from 0.1 mm to 4 mm.