... , ship hulls, tanks, boilers, piers, etc. Chemical composition Of Aluminum anode, %AlloyZnInCdSnMgTiImpurities(max)AlSiFeCuAl-Zn-IN2.0-2.60.01-0 ... .02----0.10.10.006Bal.Al-Sn_In-Cd2.5-4.50.018-0.0500.005-0 ... .020---0.10.150.01Bal.Al-Zn-In-Sn2.2-5.20.020-0.045-0 ... Aluminum anodeTypeOpen Voltage(-V)Closed Voltage(-V)CapacityA.h/kgEfficiency Al-Zn-In-Si1.05-1.181.05-1.122500 min90 ...