Popular lab battery materials include lithium metal chips, sodium metal chips, stainless steel coin cell cases with O-ring such as CR2032, CR2016, CR2025, CR2450 and so on, conical spring and wave spring, 304ss or 316ss coin cell spacer, PP separator, PE battery separator, tri-layers PP/PE/PP battery separator, Celgard 2400, Clegard 2500 and Clegard 2325, 2320, 3501. Small quantity of LiPF6 battery electrolyte, PTFE binder material, sodium battery electrolyte NaPF6, flexible hydrophilic carbon cloth, pure nickel foam for battery electrode, copper foam, Ti metal foam, aluminum foam, graphene oxide powder for lab, hard carbon and soft carbon for sodium battery, carbon nanotube CNT paper, aluminum laminated film for pouch cell case. AOT Battery technology can provide many other battery lab materials for your choice.