Method for manufacturing prismatic battery, and laser welding jig and laser welding device for manufacturing the same
US8399804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2009 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Nov 21, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser welding device for manufacturing a prismatic battery 10 of the invention has a pair of jigs 12A, 12B for securing a prismatic battery outer can B1, a gas supply section for supplying inert gas to welding points of a sealing cover B2 fitted to the prismatic battery outer can B1, and a laser unit 11 for irradiating laser beam. Each of the jigs 12A, 12B is provided with a slit-shaped blower outlet and the blower outlet is positioned below the welding points. The inert gas is supplied to the blower outlet from the gas supply section and is blown from the blower outlet to the welding points from below. The laser welding device for manufacturing a prismatic battery 10 can obtain a laser welding device that welds the sealing cover B2 fitted to the prismatic battery outer can B1 fast, preventing weld droops and allowing uniform welding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.