Batteries
Aluminum Alloys for Lithium-Ion Battery Sealing Materials
For lithium-ion battery anti-explosion valves
UACJ has designed a novel form of aluminum alloy for use with the anti-explosion valves of lithium-ion batteries, where thin-walled formation is required. It has excellent formability and can be formed integrally with the anti-explosion valve by press working, reducing the foil welding workload. Laser machining is also easy to perform.
Features
- Realizes an advanced level of strength, formability and weldability
- A newly designed aluminum alloy that is both strong and enables easy working of the anti-explosion valve
- Lineup also includes 3003, which dramatically reduces laser welding defects.
Properties Comparison
Easy integrated formation with anti-explosion valve
Weld penetration depth in laser welding
Weldability enhanced by 160%
Aluminum alloys that optimize the chemical composition and manufacturing process
| Alloy | Temper | Mechanical properties | Material properties | Features | |||||
|---|---|---|---|---|---|---|---|---|---|
| UACJ | JIS | Tensile strength (N/mm2) |
Proof stress (N/mm2) |
Elongation (%) |
Base plate strength |
Anti-explosion valve formability | Laser weldability | ||
| FS110 | 8079 | H12 | 105 | 95 | 21 | ◎ | ◎ | ◎ | Al-Fe high-strength material Superior laser weldability Easy working of anti-explosion valve |
| A350 | 1050 | O | 85 | 40 | 42 | × | ◎ | △ | Pure-aluminum materials |
| 303S | 3003 | O | 115 | 55 | 34 | ○ | △ | ○ | Al-Mn alloy materials |
| H14 | 160 | 150 | 7 | ◎ | |||||
* Figures are representative—not guaranteed—values.