Mikrouna Sealed Dry Box for Solid-State Battery Production

Solid-state and lithium metal batteries are the core directions for the next generation of lithium battery technology upgrades. Sulfide solid electrolytes and lithium metal anode materials are extremely sensitive to water and oxygen. Even trace amounts of water vapor and oxygen can cause material deterioration, produce toxic hydrogen sulfide gas, and even pose a risk of fire and explosion, posing severe challenges to the production line process environment, safety protection, and operating costs.

Mikrouna specializes in solid-state and lithium metal battery complete equipment. Relying on its sealed drying oven system, it has created a full-chain water and oxygen environment control solution, covering core processes such as lithium metal melting and casting, extrusion, rolling and composite, and cutting and stacking. From the three dimensions of process environment, environmental safety, and environmental cost, it ensures the stable operation of production lines.

Extreme process environment control to safeguard the bottom line of the manufacturing process

The entire process of preparing sulfide solid electrolytes requires a stable dew point of ≤-60℃ and control of water and oxygen content of ≤1ppm in key processes. Once moisture penetrates, sulfide materials will react rapidly to generate hydrogen sulfide, directly damaging the electrolyte performance; lithium metal anodes will corrode when exposed to water and oxidize when exposed to oxygen, causing lithium dendrites, short circuits, and battery failure.

Mikrouna's sealed drying room is equipped with a fully enclosed rotary dehumidifier and a water adsorption purification circulation system, which can stably achieve an ultra-low dew point environment of -60℃ to -70℃. It is equipped with solvent recovery treatment and is suitable for various dry and wet processes. It can be seamlessly linked with the glove box, taking into account the needs of R&D pilot-scale, pilot-scale and mass production lines. It meets the inert low water and oxygen production conditions of the entire process of lithium metal melting and casting, extrusion, lithium copper composite and cutting and stacking, and realizes continuous and controllable environment from single glove box to sealed drying room.

Comprehensive environmental safety design to build a solid production defense line

Lithium metal and sulfide materials inherently possess high-risk properties: sulfides release highly toxic hydrogen sulfide when they come into contact with water, and lithium metal reacts with water in a way that can easily cause combustion and explosion. Mikrouna's sealed drying room uses a full stainless steel welded sealed partition structure, which isolates the working space, has independent exhaust, and allows for the decomposition and recycling of residues to prevent the accumulation of toxic gases; the stainless steel chamber itself has fireproof isolation capabilities to prevent the spread of fire.

The system is equipped with an intelligent IoT management platform, based on Siemens PLC + IoT remote monitoring, which collects data such as dew point, pressure, and gas concentration in real time and provides automatic early warning for abnormalities; dynamic positive pressure control continuously replenishes dry air to prevent the intrusion of external moisture, and manages the safety risks of high-risk processes such as lithium metal melting and casting and extrusion composite in advance, so as to ensure the safety of personnel, equipment and production lines.

Energy-saving solutions significantly reduce environmental operating costs.

Unlike traditional low-humidity rooms with high energy consumption, mikrouna's sealed drying room features an innovative dual-mode dehumidification logic: a rotary dehumidifier is activated under high dew point conditions, while water adsorption purification circulation is switched under ultra-low dew point conditions, resulting in an overall energy consumption reduction of over 50%.

The enclosure adopts a modular assembly structure, with SUS304 stainless steel sealing pipelines and cavities, achieving a material reuse rate of ≥95%, reducing the overall cost of later production line relocation and modification by 60%; the enclosure size can be customized, and it can be flexibly connected to lithium metal melting and casting machines, extrusion machines, composite integrated machines, and cutting and stacking equipment to adapt to different production line layouts. The entire system integrates IoT data traceability, stores massive amounts of dew point, energy consumption, and equipment operation logs, facilitating production quality management and process review, and supporting the industrialization of solid-state and lithium metal batteries with lower operation and maintenance costs.

Mikrouna, a leader in one-stop solutions for intelligent lithium battery equipment manufacturing, empowers solid-state batteries and lithium metal batteries to move from the laboratory to large-scale mass production with its ultra-low dew point environmental control technology using sealed drying ovens.