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⚡ New Energy · Clean Manufacturing

Cleanroom Sandwich Panels For
Automotive Lithium Battery Production

Advanced cleanroom enclosure solutions engineered for the demanding environments of EV battery cell manufacturing, module assembly, and pack integration facilities.

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Why Cleanroom Sandwich Panels Are Critical for Automotive Lithium Battery Production

The global electric vehicle (EV) market has experienced explosive growth over the past decade, driving unprecedented demand for high-capacity, high-quality lithium-ion batteries. At the heart of every reliable EV battery lies a manufacturing environment that is precisely controlled — free from dust, moisture, temperature fluctuations, and airborne contaminants. This is where cleanroom sandwich panels play an indispensable role.

Automotive lithium battery production encompasses several critical stages: electrode slurry mixing, coating and drying, calendering, slitting, winding or stacking, electrolyte filling, formation cycling, and final module and pack assembly. Each stage demands a specific cleanliness level, humidity range, and structural integrity from the surrounding facility walls, ceilings, and partitions.

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Industry Insight: Leading battery gigafactories globally — including facilities in China, Germany, and the United States — specify ISO Class 5–7 cleanroom environments for electrode manufacturing and electrolyte injection zones, requiring wall systems that deliver zero particle shedding, superior airtightness, and long-term dimensional stability.

Cleanroom sandwich panels, with their composite core construction (rockwool, magnesium oxide, silicon rock, or hollow magnesium), provide the ideal combination of thermal insulation, fire resistance, structural strength, and cleanable surface finish required by these demanding production environments.

Cleanroom Sandwich Panels for Automotive Lithium Battery Production Facility
20+
Years Industry Experience
30,000㎡
Manufacturing Facility
500+
Projects Delivered Globally
ISO
Class 5–8 Certified Solutions

Market Trends Driving Cleanroom Demand in EV Battery Manufacturing

The convergence of EV adoption, battery technology evolution, and tightening regulatory standards is reshaping cleanroom infrastructure requirements worldwide.

Deep-Dive Application Scenarios in Lithium Battery Production

Each zone within a lithium battery gigafactory presents unique environmental challenges. K-STONE cleanroom sandwich panels are engineered to meet the specific requirements of every production area.

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Electrode Slurry Preparation Zone

Slurry mixing involves highly reactive lithium compounds and organic solvents (NMP). Cleanroom walls must provide chemical resistance, zero particle shedding, and explosion-proof compatibility. Stainless steel-faced sandwich panels with rockwool cores are the preferred solution, offering non-reactive surfaces that can withstand aggressive chemical cleaning agents while maintaining ISO Class 7 particle counts.

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Dry Room for Electrolyte Filling

Electrolyte injection requires dew points as low as -40°C to -60°C to prevent lithium salt hydrolysis. The facility envelope must deliver exceptional vapor impermeability and thermal insulation. K-STONE's high-performance sandwich panels with enhanced vapor barrier membranes and 75–100mm rockwool cores achieve the thermal resistance needed to maintain dry room conditions while minimizing dehumidification energy costs.

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Electrode Coating & Calendering Lines

Coating machines operate at high speeds with precision thickness tolerances of ±1 micron. Vibration, thermal gradients, and airborne particles are the primary threats to yield. Sandwich panel wall systems with mass-loaded cores dampen structural vibration transmission, while smooth, cleanable surfaces maintain laminar airflow patterns critical for coating uniformity and defect-free electrode production.

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Cell Winding & Stacking Assembly

Jelly roll winding and prismatic cell stacking require ISO Class 6–7 environments to prevent metallic particle contamination that can cause internal short circuits. Hollow magnesium cleanroom panels provide the ideal solution — lightweight for suspended ceiling applications, dimensionally stable under temperature cycling, and delivering the smooth, non-shedding interior surfaces required by quality management systems.

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Battery Module & Pack Assembly

Module assembly involves laser welding, ultrasonic bonding, and precision torque application on cell terminals. The cleanroom envelope must control ESD (electrostatic discharge), temperature (18–22°C), and humidity (30–50% RH). Silicon rock core sandwich panels with conductive surface treatments provide ESD-safe wall systems that protect sensitive battery electronics from static damage throughout the assembly process.

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Formation & Aging Rooms

Battery cells undergo initial charge-discharge cycling (formation) in temperature-controlled rooms at 25–45°C for 24–72 hours. Thousands of cells are processed simultaneously, generating significant heat loads. Cleanroom sandwich panels with high-performance rockwool insulation minimize thermal bridging between adjacent temperature zones, reduce HVAC loads, and maintain the tight temperature uniformity (±0.5°C) required for consistent SEI layer formation and cell performance.

K-STONE Cleanroom Technology About Us

K-STONE Cleanroom Technology (Jiangsu) Co Ltd

K-STONE Cleanroom System Engineering (Suzhou) Co., Ltd. is a professional cleanroom system supplier specializing in the design and construction of cleanroom engineering projects. With nearly 20 years of industry experience, our core team brings extensive expertise and deep understanding of cleanroom technologies and standards.

Founded in 2012, K-STONE has positioned itself as a trusted partner offering complete cleanroom solutions — from conceptual design to system integration and execution. We serve a wide range of industries, including pharmaceuticals, biotechnology, electronics, and medical applications, with a strong focus on tailored engineering services that meet the specific needs of each client.

At K-STONE, we are committed to creating value for our customers. Our services include engineering consultation, layout design, construction, and cleanroom system commissioning and operation, ensuring a seamless project delivery experience.

K-STONE Certifications and Quality Standards
K-STONE Manufacturing Factory for Cleanroom PanelsK-STONE Cleanroom Panel Manufacturing LineOur Factory Production LineOur Factory Quality Control

Manufacturing Base — Zhejiang Ailv Purification Technology Co Ltd

Established in 2019, Zhejiang Ailv Purification Technology Co., Ltd. is K-STONE's dedicated manufacturing arm, located in Meixi Industrial Park, Anji, Zhejiang Province. The facility spans 30 acres with a self-built factory of approximately 30,000 square meters.

The factory is equipped with state-of-the-art production lines and testing equipment, enabling high-precision manufacturing of cleanroom components including:

Cleanroom panels (rockwool, magnesium, silicon rock cores)
Clean doors and windows for battery facility applications
Stainless steel sheet metal products for dry rooms

Our products are widely applied in biomedical, food processing, electronics, semiconductors, new energy (lithium battery), and medical aesthetics industries. By integrating design, production, and quality control, we ensure high-performance, reliable cleanroom solutions for global customers.

Culture

The values and vision that drive every cleanroom solution we deliver for the global new energy industry.

🌟 Vision

To become a leading force in the global cleanroom industry.

K-STONE is committed to driving innovation and setting new benchmarks in clean environment engineering — with a particular focus on the rapidly growing new energy and automotive battery manufacturing sectors.

🎯 Mission

Quality first, pursuit of excellence.

We strive to deliver high-performance cleanroom solutions through uncompromising quality and continuous improvement, ensuring every lithium battery facility we build meets the highest international standards.

💼 Core Values

Professionalism. Dedication. Customer Value.

We are driven by a strong sense of responsibility, expertise, and the belief that our success is measured by the value we create for our clients in the EV battery and cleanroom industries.

Why Choose K-STONE for Your Battery Cleanroom Project

At K-STONE, we go beyond supplying products — we deliver confidence, innovation, and long-term value for your lithium battery manufacturing facility.

K-STONE Quality Excellence in Battery Cleanroom Manufacturing
Quality Assurance

Excellence in Quality Control

Our rigorous quality standards and attention to detail ensure every product and project meets international compliance and client expectations — critical for automotive-grade battery facility certification.

K-STONE R&D Innovation Team
R&D and Innovation

Dedicated R&D and Innovation Team

We invest heavily in the research and development of new products, technologies, and materials to stay at the forefront of the cleanroom industry — including dry room solutions for next-generation solid-state battery production.

K-STONE Expert Project Management
Expert Project Management

Expert Project Management Team

We have a highly experienced team specializing in cleanroom design, construction, and execution — ensuring efficiency, compliance, and reliable performance from concept to completion for your battery manufacturing facility.

Comprehensive Turnkey Solutions for Battery Manufacturing Facilities

K-STONE offers fully integrated engineering solutions for automotive battery and new energy manufacturing plants around the world. Our turnkey capabilities cover every critical aspect of facility development, including:

Cleanroom design and construction for battery production zones
Automated control and environmental monitoring systems (BMS/EMS)
Dry room systems for electrolyte filling (dew point to -60°C)
Solution preparation and transfer systems
Filling and packaging line integration
Intelligent warehousing and logistics systems
Quality control laboratories and central testing facilities
Lithium Battery Cleanroom Engineering Case 1Battery Facility Engineering Case OverviewAutomotive Battery Cleanroom Engineering Case 2Battery Production Cleanroom Case 2 PlanEV Battery Manufacturing Cleanroom Engineering Case 3

Our Project Delivery Process

We understand that each battery manufacturing project must meet stringent regulatory requirements across different countries, while also adapting to the specific operational needs of each client. By providing customized, regulation-compliant turnkey solutions, K-STONE empowers manufacturers to achieve high performance, global compliance, and strong industry recognition.

01
Feasibility Research

Feasibility Research

02
Set Up The Project

Set Up The Project

03
Concept Design

Concept Design

04
Project Accounting

Project Accounting

05
Contract Signing

Contract Signing

06
Production Technology Transferring

Production Technology Transferring

07
Construction Design

Construction Design

08
Equipment Model Selection & Customization

Equipment Model Selection & Customization

09
Previous Preparation

Previous Preparation

10
Construction And Management

Construction And Management

11
Completion Approval

Completion Approval

12
After Sales Service

After Sales Service

Ready to Build Your Battery Cleanroom Facility?

Partner with K-STONE for expertly engineered cleanroom sandwich panel solutions tailored to the precise demands of automotive lithium battery production.

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