Why is it necessary to use a special grinding machine for battery anode materials？

In simple terms： The anode materials of batteries (such as Petroleum coke, graphite, silicon-carbon, hard carbon, etc.) have extremely high requirements for the purity, particle size, morphology and safety of the powder. Ordinary ore grinding mills simply cannot meet these requirements, and dedicated grinding mills must be used.

The reason for using a dedicated grinding machine is mainly due to the following important factors:

Iron impurities can cause short circuits within the battery’s internal circuit, shorten the battery’s lifespan, and even lead to thermal runaway. Therefore, when processing the negative electrode materials of the battery, iron impurities must not be introduced.

Negative electrode material: Generally, ultrafine powder of 3 to 20μm is required, and the particle size distribution should be narrow. If it is too coarse, the battery charging and discharging will be slow and the capacity will be low. If it is too fine, the specific surface area will be too large, and there will be many side reactions due to liquid absorption and expansion

The negative electrode graphite requires a flake/spherical structure to ensure: high density, good electrical conductivity, and lithium-ion intercalation speed

Graphite and silicon-carbon anode powders are flammable and explosive, and are highly prone to generating static electricity. During the grinding process, if the dust concentration is too high, they may explode and catch fire.

Specialized mills are generally integrated in grinding, drying and classification, operating in a fully enclosed manner, without absorbing moisture, oxidizing or leaking dust.

The positive electrode materials of batteries mainly include petroleum coke (fresh petroleum coke and calcined petroleum coke), lithium iron phosphate, lithium phosphate, lithium hydroxide, etc., while the negative electrode materials mainly consist of natural graphite, artificial graphite, LTO, etc.

First, let’s take a look at a picture:

As shown in the figure, what you are seeing is the internal structure of the Cronus battery material-specific grinding machine. It demonstrates that the parts of our grinding machine that come into contact with the materials during operation are all made of high-composite ceramic materials, ensuring that no iron impurities are produced throughout the production process. Additionally, this system is fully equipped with a cooling system and a dust removal system, significantly enhancing the safety of processing battery materials and reducing the leakage of dust.

The entire production line of this equipment is shown as follows:

Some Chinese listed companies have chosen our company’s special grinding machines for battery materials. In particular, CATL (Ningde Times) has adopted Cronus’s impact-type special grinding machines for battery materials on a large scale.

For lithium iron phosphate, our recommended configuration is as follows:

Total Power：314.75kw 

Actual Operating Power：314.75×0.8=251.8kw

Capacity：3-3.5 TONS PER HOUR

Electricity Cost for Producing One Ton: 72-83.6 kW

Battery anode material grinding machine

Battery anode material grinding machine

Battery anode material grinding machine

Battery anode material grinding machine

Battery anode material grinding machine

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Applicable material of CLGM series Gypsum superfine powder grinding mill

CRGM series Gypsum superfine powder grinding mill is suitable for the super fine grinding of all kinds of crisp materials whose Moh’s hardness is below 7, such as calcium carbonate, barite, dolomite, calcite, limestone, kaolin, bentonite, marble, gypsum, quartz, feldspar, clay, talc, fluorite, white mud, mica, refractory material, glass, total about 1000 kinds of materials.

Gypsum superfine powder grinding mill also as known as talc grinding mill,caco3 grinding mill, marble grinding mill, gypsum grinding mill, Pyrophyllite mill, kaolin mill, diatomite mill, carbon black grinding mill ……

The fine powder processed by the ore ultrafine roller mill can be widely used in PVC, paint, construction, petrochemical, stone paper, and other industries, and is the food for industrial production.

A mill body, blower fan, ultra-fine analyzer, finished product cyclone container, bag de-duster, and air pipe mainly form Micro Powder Grinder. The elevator, storage bin, electric control cabinet, powder feeder and crusher are optional for customers’ demands. 

When the grinding mill is at work, the main bearing and each dial are driven by an electromotor through the reducer, and all the grinding rollers are rolling in the ring channels driven by the dial through a plunger. The materials are driven to the edge of the turn plate by the centrifugal force and fall into the grinding chambers. The high-pressure air blower constantly inhales air, and airflow with crushed materials is brought to the classifier whose high-speed impeller will screen the airflow: The unqualified particle size will fall and return to the mill for being reground. In contrast, the qualified particle size mixed with air will go into the cyclone powder collector. Most qualified powders will fall and exit from the discharging valve at the bottom; A small proportion of the fine powders, with airflow, moves to the dust cleaner. The conveyor sends the materials from the above two lots to get the finished powders packed. In addition, filtered clean air will be emitted from the muffler in the end.

High fineness (300-3000 mesh adjusted)

Large Capacity(depends on fineness 1-15TPH)

High utilization rate of Wear material:2-5years.

High safety and reliability. The design of the mill is rigorous, so no screw loosening 
to damage the machine.

Negative pressure production environment, so it is the green and ideal equipment for environmental protection

if you are interested in our machine and do not know how to choose the match machine, please keep in touch with us by WhatsApp or call us at : +86-19921221418

Raymon Mill

40-400 mesh

vertical roller mill

80-800 mesh

superfine vertical mill

300-3000 mesh

Applicable material of CLGM series Talc superfine powder grinding mill

CRGM series Talc superfine powder grinding mill is suitable for the super fine grinding of all kinds of crisp materials whose Moh’s hardness is below 7, such as calcium carbonate, barite, dolomite, calcite, limestone, kaolin, bentonite, marble, gypsum, quartz, feldspar, clay, talc, fluorite, white mud, mica, refractory material, glass, total about 1000 kinds of materials.

Talc superfine powder grinding mill also as known as talc grinding mill,caco3 grinding mill, marble grinding mill, gypsum grinding mill, Pyrophyllite mill, kaolin mill, diatomite mill, carbon black grinding mill ……

The fine powder processed by the ore ultrafine roller mill can be widely used in PVC, paint, construction, petrochemical, stone paper, and other industries, and is the food for industrial production.

A mill body, blower fan, ultra-fine analyzer, finished product cyclone container, bag de-duster, and air pipe mainly form Micro Powder Grinder. The elevator, storage bin, electric control cabinet, powder feeder and crusher are optional for customers’ demands. 

When the grinding mill is at work, the main bearing and each dial are driven by an electromotor through the reducer, and all the grinding rollers are rolling in the ring channels driven by the dial through a plunger. The materials are driven to the edge of the turn plate by the centrifugal force and fall into the grinding chambers. The high-pressure air blower constantly inhales air, and airflow with crushed materials is brought to the classifier whose high-speed impeller will screen the airflow: The unqualified particle size will fall and return to the mill for being reground. In contrast, the qualified particle size mixed with air will go into the cyclone powder collector. Most qualified powders will fall and exit from the discharging valve at the bottom; A small proportion of the fine powders, with airflow, moves to the dust cleaner. The conveyor sends the materials from the above two lots to get the finished powders packed. In addition, filtered clean air will be emitted from the muffler in the end.

High fineness (300-3000 mesh adjusted)

Large Capacity(depends on fineness 1-15TPH)

High utilization rate of Wear material:2-5years.

High safety and reliability. The design of the mill is rigorous, so no screw loosening 
to damage the machine.

Negative pressure production environment, so it is the green and ideal equipment for environmental protection

if you are interested in our machine and do not know how to choose the match machine, please keep in touch with us by WhatsApp or call us at : +86-19921221418

Raymon Mill

40-400 mesh

vertical roller mill

80-800 mesh

superfine vertical mill

300-3000 mesh

Applicable material of CLGM series CaCO3 superfine powder grinding mill

CRGM series CaCO3 superfine powder grinding mill is suitable for the super fine grinding of all kinds of crisp materials whose Moh’s hardness is below 7, such as calcium carbonate, barite, dolomite, calcite, limestone, kaolin, bentonite, marble, gypsum, quartz, feldspar, clay, talc, fluorite, white mud, mica, refractory material, glass, total about 1000 kinds of materials.

CaCO3 superfine powder grinding mill also as known as talc grinding mill,caco3 grinding mill, marble grinding mill, gypsum grinding mill, Pyrophyllite mill, kaolin mill, diatomite mill, carbon black grinding mill ……

The fine powder processed by the ore ultrafine roller mill can be widely used in PVC, paint, construction, petrochemical, stone paper, and other industries, and is the food for industrial production.

A mill body, blower fan, ultra-fine analyzer, finished product cyclone container, bag de-duster, and air pipe mainly form Micro Powder Grinder. The elevator, storage bin, electric control cabinet, powder feeder and crusher are optional for customers’ demands. 

When the grinding mill is at work, the main bearing and each dial are driven by an electromotor through the reducer, and all the grinding rollers are rolling in the ring channels driven by the dial through a plunger. The materials are driven to the edge of the turn plate by the centrifugal force and fall into the grinding chambers. The high-pressure air blower constantly inhales air, and airflow with crushed materials is brought to the classifier whose high-speed impeller will screen the airflow: The unqualified particle size will fall and return to the mill for being reground. In contrast, the qualified particle size mixed with air will go into the cyclone powder collector. Most qualified powders will fall and exit from the discharging valve at the bottom; A small proportion of the fine powders, with airflow, moves to the dust cleaner. The conveyor sends the materials from the above two lots to get the finished powders packed. In addition, filtered clean air will be emitted from the muffler in the end.

High fineness (300-3000 mesh adjusted)

Large Capacity(depends on fineness 1-15TPH)

High utilization rate of Wear material:2-5years.

High safety and reliability. The design of the mill is rigorous, so no screw loosening 
to damage the machine.

Negative pressure production environment, so it is the green and ideal equipment for environmental protection

if you are interested in our machine and do not know how to choose the match machine, please keep in touch with us by WhatsApp or call us at : +86-19921221418

Raymon Mill

40-400 mesh

vertical roller mill

80-800 mesh

superfine vertical mill

300-3000 mesh

Applicable material of CLGM series Dolomite superfine powder grinding mill

CRGM series Dolomite superfine powder grinding mill is suitable for the super fine grinding of all kinds of crisp materials whose Moh’s hardness is below 7, such as calcium carbonate, barite, dolomite, calcite, limestone, kaolin, bentonite, marble, gypsum, quartz, feldspar, clay, talc, fluorite, white mud, mica, refractory material, glass, total about 1000 kinds of materials.

Dolomite superfine powder grinding mill also as known as talc grinding mill,caco3 grinding mill, marble grinding mill, gypsum grinding mill, Pyrophyllite mill, kaolin mill, diatomite mill, carbon black grinding mill ……

The fine powder processed by the ore ultrafine roller mill can be widely used in PVC, paint, construction, petrochemical, stone paper, and other industries, and is the food for industrial production.

Micro Powder Grinder is mainly formed by a mill body, blower fan, ultra-fine analyzer, finished product cyclone container, bag de-duster, and air pipe. The elevator, storage bin, electric control cabinet, powder feeder and crusher are optional for the demands of customers. 

When the grinding mill is at work, the main bearing and each dial are driven by an electromotor through the reducer, and all the grinding rollers are rolling in the ring channels driven by the dial through a plunger. The materials are driven to the edge of the turn plate by the centrifugal force and fall into the grinding chambers. The high-pressure air blower constantly inhales air, and airflow with crushed materials is brought to the classifier whose high-speed impeller will screen the airflow: The unqualified particle size will fall and return to the mill for being reground. In contrast, the qualified particle size mixed with air will go into the cyclone powder collector. Most qualified powders will fall and exit from the discharging valve at the bottom; A small proportion of the fine powders, with airflow, moves to the dust cleaner. The conveyor sends the materials from the above two lots to get the finished powders packed. In addition, filtered clean air will be emitted from the muffler in the end.

High fineness (300-3000 mesh adjusted)

Large Capacity(depends on fineness 1-15TPH)

High utilization rate of Wear material:2-5years.

High safety and reliability. The design of the mill is rigorous, so no screw loosening 
to damage the machine.

Negative pressure production environment, so it is the green and ideal equipment for environmental protection

if you are interested in our machine and do not know how to choose the match machine, please keep in touch with us by WhatsApp or call us at : +86-19921221418

Raymon Mill

40-400 mesh

vertical roller mill

80-800 mesh

superfine vertical mill

300-3000 mesh

Applicable material of CLGM series calcium carbonate superfine powder grinding mill

CRGM series calcium carbonate superfine powder grinding mill is suitable for the super fine grinding of all kinds of crisp materials whose Moh’s hardness is below 7, such as calcium carbonate, barite, dolomite, calcite, limestone, kaolin, bentonite, marble, gypsum, quartz, feldspar, clay, talc, fluorite, white mud, mica, refractory material, glass, total about 1000 kinds of materials.

The fine powder processed by the ore ultrafine roller mill can be widely used in PVC, paint, construction, petrochemical, stone paper, and other industries, and is the food for industrial production.

Micro Powder Grinder is mainly formed by a mill body, blower fan, ultra-fine analyzer, finished product cyclone container, bag de-duster, and air pipe. The elevator, storage bin, electric control cabinet, powder feeder and crusher are optional for the demands of customers. 

When the grinding mill is at work, the main bearing and each dial are driven by an electromotor through the reducer, and all the grinding rollers are rolling in the ring channels driven by the dial through a plunger. The materials are driven to the edge of the turn plate by the centrifugal force and fall into the grinding chambers. The high-pressure air blower constantly inhales air, and airflow with crushed materials is brought to the classifier whose high-speed impeller will screen the airflow: The unqualified particle size will fall and return to the mill for being reground. In contrast, the qualified particle size mixed with air will go into the cyclone powder collector. Most qualified powders will fall and exit from the discharging valve at the bottom; A small proportion of the fine powders, with airflow, moves to the dust cleaner. The conveyor sends the materials from the above two lots to get the finished powders packed. In addition, filtered clean air will be emitted from the muffler in the end.

High fineness (300-3000 mesh adjusted)

Large Capacity(depends on fineness 1-15TPH)

High utilization rate of Wear material:2-5years.

High safety and reliability. The design of the mill is rigorous, so no screw loosening 
to damage the machine.

Negative pressure production environment, so it is the green and ideal equipment for environmental protection

if you are interested in our machine and do not know how to choose the match machine, please keep in touch with us by WhatsApp or call us at : +86-19921221418

Raymon Mill

40-400 mesh

vertical roller mill

80-800 mesh

superfine vertical mill

300-3000 mesh

What is the difference between a calcium carbonate superfine powder grinding mill and a general stone mill

ring roller mill that has about more than 21 rollers in its body, so it can process higher fineness than a general stone mill? In general, can reach 3000 mesh and also can be adjusted from 300 to 3000 mesh.

What is the difference between a ball mill and a ring roller mill?

The ball mill is generally used to produce mineral powder below 600 mesh, with a large output.
The roller mill is generally used to produce more than 1000 mesh of mineral powder, relative to the ball mill, the output is smaller.

Calcium carbonate mill can only be used to process calcium carbonate?

no, this superfine powder calcium carbonate grinding mill is not only used for calcium carbonate but also used for talc, gypsum, dolomite, carbon black, and other more than 150 kinds of stone materials.

Applicable material of CLGM series ring roller mill

CRGM series ring roller mill is suitable for the super fine grinding of all kinds of crisp materials whose Moh’s hardness is below 7, such as calcium carbonate, barite, dolomite, calcite, limestone, kaolin, bentonite, marble, gypsum, quartz, feldspar, clay, talc, fluorite, white mud, mica, refractory material, glass, total about 1000 kinds of materials.

The fine powder processed by the ore ultrafine roller mill can be widely used in PVC, paint, construction, petrochemical, stone paper, and other industries, and is the food for industrial production.

Micro Powder Grinder is mainly formed by a mill body, blower fan, ultra-fine analyzer, finished product cyclone container, bag de-duster, and air pipe. The elevator, storage bin, electric control cabinet, powder feeder and crusher are optional for the demands of customers. 

When the grinding mill is at work, the main bearing and each dial are driven by an electromotor through the reducer, and all the grinding rollers are rolling in the ring channels driven by the dial through a plunger. The materials are driven to the edge of the turn plate by the centrifugal force and fall into the grinding chambers. The high-pressure air blower constantly inhales air, and airflow with crushed materials is brought to the classifier whose high-speed impeller will screen the airflow: The unqualified particle size will fall and return to the mill for being reground. In contrast, the qualified particle size mixed with air will go into the cyclone powder collector. Most qualified powders will fall and exit from the discharging valve at the bottom; A small proportion of the fine powders, with airflow, moves to the dust cleaner. The conveyor sends the materials from the above two lots to get the finished powders packed. In addition, filtered clean air will be emitted from the muffler in the end.

High fineness (300-3000 mesh adjusted)

Large Capacity(depends on fineness 1-15TPH)

High utilization rate of Wear material:2-5years.

High safety and reliability. The design of the mill is rigorous, so no screw loosening 
to damage the machine.

Negative pressure production environment, so it is the green and ideal equipment for environmental protection

if you are interested in our machine and do not know how to choose the match machine, please keep in touch with us by WhatsApp or call us at : +86-19921221418

Raymon Mill

40-400 mesh

vertical roller mill

80-800 mesh

superfine vertical mill

300-3000 mesh