NIONSUPPLY 5 Meter 0.3X15MM Copper Strap Copper Sheet for High Power Battery Lithium Battery Electric Vehicle Battery Assembly Material: T2 Pure copper (Copper 110), purity: 99.9% Size : (Thickness x Width) 0.2 x 7mm Length: 5 meter (16.4 ft) Note: this material can't be spot weld, need to do soldering