Aluminum Alloys for Lithium-ion Battery Housing Cases

UACJ is developing automotive lithium-ion battery materials

Features

The materials have high strength and excellent formability, e.g., drawing and ironing.
They excel in pressure resistance and can suppress bulging due to repeated charging and discharging.

Alloy	JIS name	Temper	Mechanical properties			Material properties (comparison with the same temper)				Features
Alloy	JIS name	Temper	Tensile strength (N/mm²)	Proof stress (N/mm²)	Elongation (%)	Bulging resistance	Creep resistance	Square tube forming	Laser welding	Features
MG212	－	O	174	62	28	◎	◎	○	◎	Excellent balance of properties
MG212	－	H14	245	225	5	◎	◎	○	◎	Excellent balance of properties
303S	3003	O	119	52	37	△	△	◎	○	Standard Al-Mn alloys
303S	3003	H14	170	160	6	△	△	◎	○	Standard Al-Mn alloys
A350	1050	O	83	40	42	×	×	◎	△	Standard pure-aluminum
A350	1050	H14	110	105	5	×	×	◎	△	Standard pure-aluminum