Chemical compositions of cast magnesium anodes

Element

High Potential

AZ63B(HIA)

AZ63C(HIB)

AZ63D(HIC)

AZ31

Mg

Bal

Bal

Bal

Bal

Bal

Al

<0.01

5.30-6.70

5.30-6.70

5.0-7.0

2.70-3.50

Zn

-

2.50-3.50

2.50-3.50

2.0-4.0

0.70-1.70

Mn

0.50-1.30

0.15-0.70

0.15-0.70

0.15-0.70

0.15-0.60

Si(max)

0.05

0.10

0.30

0.30

0.05

Cu(max)

0.02

0.02

0.05

0.10

0.01

Ni(max)

0.001

0.002

0.003

0.003

0.003

Fe(max)

0.03

0.005

0.005

0.005

0.005

Other Imp.(max)

Each

0.05

-

-

-

-

Total

0.30

0.30

0.30

0.30

0.30

Electrochemical properties of cast magnesium anodes

-

Open-Circuit voltage(-v respect to *sce)

Close-Circuit voltage(-v respect to *sce)

Actual Capacitance(A.h/lb)

Current Efficiency(%)

High Potential

1.70-1.78

1.52-1.62

≥500

≥50

AZ63

1.50-1.55

1.45-1.50

≥550

≥55

AZ31

1.55

1.45-1.50

≥550

≥55