Battery Twin Screw Extruder Machine

Introduction of lithium-ion battery material granulator

The upstream mineral resources of lithium-ion batteries are mainly lithium carbonate, iron, manganese, cobalt, and nickel, among which cobalt and lithium are the most used. These resources are limited in nature and hold strategic capital value. China has relatively rich lithium reserves, second only to Chile and Argentina. In 2008, lithium carbonate production reached 93,000 tons, while demand was about 100,000 tons, with battery products accounting for approximately 28% of lithium consumption. With the gradual industrialization of power batteries, the demand for lithium carbonate is expected to surge, leading to a shortage of upstream lithium carbonate resources. In response to this growing demand, advanced manufacturing technologies, such as the battery twin screw extruder machine, play a crucial role in optimizing battery material production and improving processing efficiency.

Lithium-ion battery materials mainly include cathode materials, anode materials, isolation film, electrolyte four parts, and other aluminum platinum, copper foil, binder, and so on.

Among them, cathode materials account for about 33% of the total cost, anode materials account for a relatively low 10%, and electrolytes and the diaphragm account for about 12% and 30% of the cost, respectively.

With the rapid development of the lithium-ion battery industry, downstream capacity expansion, and resource companies’ supply pressure increasing, the trend of demand growth rate is greater than the supply growth rate and will make the upstream mineral resources link head capital value. However, due to the scarcity of mineral resources and the monopoly of the enterprise, coupled with the characteristics of this type of industry is generally, a large amount of capital into the early stage, and it is difficult for small and medium-sized enterprises to cut into it. In China’s efforts to build an environmentally friendly society, committed to the development of a low-carbon economy in the context of this link is to highlight the value of a very high head of capital. With lithium-ion battery recycling technology advantages of small and medium-sized enterprises should be actively involved in this link to share the rapid development of the industry to bring economic benefits.

Lithium-ion battery material granulator basic structure form

Twin-screw high-speed, strong mixing and single-screw low-speed, low-temperature, weak shear characteristics of the combination of lithium-ion battery materials granulator to avoid the shortcomings of the strengths of today’s heat-sensitive, shear-sensitive materials, efficient mixing and modification of the hand-selected unit. Lithium-ion battery material granulator double-stage pelletizing unit di first-order GS-type high-speed co-rotating twin-screw extruder, lithium-ion battery material granulator second-order series of single-screw extruder, constituting a double-stage composite unit, the material through the twin-screw into the single-screw, and then extruded by a single-screw through the mold after the mold direct molding, according to the customer’s requirements as well as the size of the mold to produce different specifications of the product.

Lithium-ion battery material granulator process configuration

High mixer—-Screw automatic feeder——Twin-screw pelletizer———-Single-screw pelletizer——–Extrusion molds

Lithium Battery Extruder Series

The machine is mainly customized according to the production manufacturers, recently we have successfully cooperation with many customers and machine running very stable because of our advantages in the main parts.

Battery twin screw extruder machine Parameter

Battery twin screw extruder machine Application

The battery twin screw extruder machine is widely used in several applications within the battery manufacturing industry, particularly for processing materials used in advanced energy storage systems. Some key applications include:

1. Cathode and Anode Material Production: The twin screw extruder is commonly used to mix and process the active materials for battery electrodes. Ensuring uniform mixing of materials like lithium, graphite, and other compounds, it plays a vital role in achieving optimal electrochemical performance in batteries.
2. Binder and Additive Incorporation: The extruder helps in the homogeneous blending of binders, conductive agents, and additives with active battery materials. This precise blending improves the mechanical and electrochemical properties of the electrodes.
3. Electrode Slurry Preparation: In the production of battery electrodes, the machine is used to prepare electrode slurries by mixing powders with solvents and binders. This process ensures consistent viscosity and texture, which is essential for high-performance batteries.
4. Solid-State Battery Production: For the development of next-generation solid-state batteries, twin screw extruders are used to process solid electrolytes and electrode materials, aiding in the fabrication of solid battery components.
5. Recycling of Battery Materials: The extruder can also be employed in recycling processes, where it helps in reprocessing used battery materials, contributing to sustainability and reducing waste in battery production.

The twin screw extruder’s ability to control temperature, pressure, and shear forces makes it versatile for processing a wide range of battery materials, ensuring high-quality output for applications like lithium-ion, solid-state, and other advanced batteries.

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