Battery Grade manganese ore

Hello sir, I am RAtan Verma. I am from Ranchi. I want you to help me by providing me some information about the Battery grade manganese ore specifications. Can you help me?

[Kiran Chandar]

As you have asked about the Battery grade manganese ore specifications, I am giving you info about it

For this purpose, pyrolusite variety of manganese ore with gamma form is used. Pyrolusite acts as a depolorizer. The ore should have a high content of manganese dioxide and a small amount iron. It should have an appropriate degree of porosity and should be free from copper, nickel, cobalt, etc. The ore should conform to the following specifications for battery industry.

Size 200 mesh
MnO2 80 - 88
Fe2O3 3% max.
P 0.08% max.
Moisture 3% max.

Electrolytic manganese dioxide is being produced in the country synthetically, which contains a minimum of 90% MnO2 and 0.07% iron. The synthetic material can be produced either from low-grade or high-grade ores.

The BIS (IS: 11153 - 1984) has prescribed the following specifications for manganese ore for dry batteries:

Characteristics
Requirement
Type A Type B Type C

Manganese dioxide, percent by mass (on dry basis)

72
85
90

Moisture, percent by mass max.
3
3
3

Lead (as Pb), percent by mass max.
0.1
Trace
0.1

Iron (as Fe) percent by mass max.
7.0
--
0.1

Sulfate (as SO4) percent by mass max.
--
1.5
1.5

Matter insoluble in hydrochloric acid on ignition percent by mass max.
10.00
0.5
0.5

Copper (as Cu) percent by mass max.
0.02
--
0.002

Nickel (as Ni) percent by mass max.
0.04
0.003
0.003

pH of 5 percent by mass max.
--
4.5 - 6.5
4.5 - 6.5

Dear Kiran,

You give the specifications for dry-cell batteries. Could you also give the specifications for Mangenese used in Secondary-cell / Lithium-ion batteries such as NMC / MiMH / LMD?

Thanks in advance

Originally Posted by Kiran Chandar

As you have asked about the Battery grade manganese ore specifications, I am giving you info about it

For this purpose, pyrolusite variety of manganese ore with gamma form is used. Pyrolusite acts as a depolorizer. The ore should have a high content of manganese dioxide and a small amount iron. It should have an appropriate degree of porosity and should be free from copper, nickel, cobalt, etc. The ore should conform to the following specifications for battery industry.

Size 200 mesh
MnO2 80 - 88
Fe2O3 3% max.
P 0.08% max.
Moisture 3% max.

Electrolytic manganese dioxide is being produced in the country synthetically, which contains a minimum of 90% MnO2 and 0.07% iron. The synthetic material can be produced either from low-grade or high-grade ores.

The BIS (IS: 11153 - 1984) has prescribed the following specifications for manganese ore for dry batteries:

Characteristics
Requirement
Type A Type B Type C

Manganese dioxide, percent by mass (on dry basis)

72
85
90

Moisture, percent by mass max.
3
3
3

Lead (as Pb), percent by mass max.
0.1
Trace
0.1

Iron (as Fe) percent by mass max.
7.0
--
0.1

Sulfate (as SO4) percent by mass max.
--
1.5
1.5

Matter insoluble in hydrochloric acid on ignition percent by mass max.
10.00
0.5
0.5

Copper (as Cu) percent by mass max.
0.02
--
0.002

Nickel (as Ni) percent by mass max.
0.04
0.003
0.003

pH of 5 percent by mass max.
--
4.5 - 6.5
4.5 - 6.5