Complete Button Cell / TWS Battery Production Equipment Solutions

  • End-to-End Equipment for High-Precision Miniature Battery Manufacturing
We offer a full suite of production equipment for button cells and TWS (True Wireless Stereo) battery manufacturing—covering electrode preparation, cell assembly, electrolyte filling, formation, testing, and final packaging. Our turnkey solutions ensure exceptional precision, automation, and efficiency for small-format lithium battery production.

99.8%

Equipment Yield Rate

30+

Global Partners

40%

Production Efficiency Boost

100+

Automated Line Cases

Button Cell / TWS Battery Turnkey Production Line

Compact cell production optimized for wearable and IoT applications.

Electrode Preparation

  • Slurry Mixer
Homogenizes powder and liquid to form uniform slurry. Key Spec: Mixing Ratio Accuracy: ±1%
  • Coating Machine (Small-format)
Applies ultra-thin slurry layers onto collector foil. Key Spec: Coating Thickness: 10–50μm, Accuracy: ±1μm
  • Drying Oven
Rapid drying for thin electrode layers. Key Spec: Temp Control: ±2℃
  • Calendering Machine
Compresses and flattens electrodes for button cell size. Key Spec: Precision: ±1μm
  • Punching Machine
Punches electrodes into round discs. Key Spec: Accuracy: ±0.05mm

Cell Assembly

  • Winding/Stacking Machine
Prepares rolled or stacked electrode-separator units. Key Spec: Alignment Accuracy: ±0.1mm
  • Button Cell Case Assembler
Assembles jelly roll into small coin cell casing. Key Spec: Insertion Accuracy: ±0.2mm
  • Electrolyte Filling (Drop Injection)
Drops precise volume of electrolyte. Key Spec: Accuracy: ±0.005g
  • Crimping Machine (Coin Cell)
Seals the cell cap with precise pressure. Key Spec: Seal Strength: ≥95%

Formation & Grading

  • Mini Formation Cabinet
Activates chemistry via formation cycles. Key Spec: Voltage Accuracy: ±0.05%
  • Grading & Sorting Machine
Classifies cells based on voltage and IR. Key Spec: Sorting Accuracy: ±1mAh
  • IR Tester
Tests internal resistance of micro-batteries. Key Spec: Resolution: 0.01mΩ
  • Laser Marker (Micro-size)
Prints traceability codes on miniature shells. Key Spec: Code Size: ≤3mm

Packing

  • Auto Labeling & Sealing Machine
Labels and seals button cells for shipment. Key Spec: Efficiency: 60 pcs/min

Innovation-Driven Technical Strength

Continuous R&D investment and technological innovation are the cornerstones of our industry leadership. We are committed to applying cutting-edge technology to our equipment to create greater value for our customers.
Learn More Technical Details

Top R&D Team

Led by PhDs and senior industry experts, covering multiple fields including mechanical, electrical, software, and material science.

Core Technology Patents

Holding over 50 core technology patents, especially leading the industry in high-speed stacking, precision control, and intelligent inspection.

Advanced Laboratory

Equipped with advanced material analysis and cell testing centers, providing strong data support for equipment R&D and process validation.

Technological Innovations

Pioneered an AI-based visual defect detection system, increasing inspection efficiency and accuracy by 40%.

See Our Turnkey Button & TWS Battery Equipment Solutions in Action

What Challenges Do Button Cell / TWS Battery Manufacturers Face?

Producing high-precision, compact lithium batteries like button cells or TWS batteries presents unique technical challenges. Manufacturers must manage extremely tight tolerances, micro-scale assembly, and mass production constraints while maintaining quality and consistency across every step.

Micro-Scale Process Complexity

Button cells and TWS batteries require precise handling of miniature components—where any deviation can lead to functional failure.
  • Electrode coating, punching, and stacking must meet micron-level accuracy
  • Small-size jelly rolls or stacked units need exact alignment
  • Limited space increases the difficulty of sealing, welding, and filling

Quality & Consistency Under Tight Tolerances

Quality issues such as leakage, swelling, or short-circuit risk are magnified in small-format batteries.
  • Unstable electrolyte injection due to low injection volumes
  • Inconsistent laser or ultrasonic welding in micro-scale terminals
  • Difficulty in maintaining consistent sealing and vacuum in compact cells

Efficiency Bottlenecks in Mass Production

As TWS and coin-type batteries are often produced in high volumes, equipment must support fast takt time without compromising accuracy.
  • Slow manual/semi-automatic lines hinder output
  • High labor intensity and low repeatability
  • Equipment coordination gaps reduce overall efficiency

Yield Loss and Production Scrap

Yield becomes even more critical in miniature battery production, where even a small defect causes total rejection.
  • Misaligned cap welding leads to sealing failure
  • Poor cell sorting or grading affects battery lifespan
  • Electrolyte overflow or vacuum leakage causes high scrap rates

Long Lead Times & Limited After-Sales Support

Mass production projects often face long equipment delivery cycles and insufficient technical guidance, especially in overseas markets.
  • Long wait times for customized machines
  • No on-site commissioning or localized support
  • Difficult knowledge transfer and training gaps

Our Tailored Solutions for Button Cell & TWS Battery Production

We engineer and deliver turnkey production lines customized for miniature lithium batteries — helping you improve yield, accelerate cycle time, and scale confidently.
Modular & Customizable Equipment
Our machines are designed specifically for compact cell formats.
  • Supports various button cell sizes (e.g., CR, ML, LIR) and TWS cell types
  • Switchable between jelly roll and stacking formats for TWS applications
  • Space-saving equipment layout for flexible factory integration
  • Supports multiple chemistries including LCO, NMC, and LFP
  • Accurate coating, punching, stacking, and crimping systems
  • Ultrasonic/laser welding for terminals with micron-level control
  • Real-time monitoring of vacuum, filling, and sealing parameters
  • Fully automated loading, transfer, and assembly modules
  • Data traceability and smart error detection
  • Seamless MES connectivity for digital production management
  • AOI-based inspection for electrode, cap, and weld quality
  • Electrolyte injection feedback loop for volume control
  • Inline leak testing and sealing validation
  • Modular delivery options to reduce lead time
  • Remote and on-site support by experienced engineers
  • Comprehensive operator training and maintenance guidance

Industries We Serve

Certifications & Standards

  • Quality, Safety & Compliance—Built In

ISO 9001:2015

Quality management system certification ensuring consistent product quality and customer satisfaction.

CE Marking

European conformity certification confirming compliance with health, safety, and environmental protection standards.

RoHS Compliance

Restriction of hazardous substances compliance ensuring environmental safety and sustainability.

UL Listed

North American safety standards compliance for industrial battery manufacturing equipment.

Empower Your Button Cell / TWS Battery Production with Confidence

Our turnkey button cell and TWS battery production solutions are purpose-built to meet the challenges of compact battery manufacturing. Whether you’re launching a new product or scaling for mass production, we deliver the tools, expertise, and support you need to stay competitive in a fast-moving market.

FAQ

Here are some common questions from our customers. If you have other inquiries, please feel free to contact us.
1. What types of batteries can your production line handle?
Our turnkey solution supports a wide range of button cells (e.g., CR, ML, LIR series) and TWS lithium batteries with both jelly roll and stacking structures. We can customize the line based on your product size, chemistry, and capacity requirements.
Yes. We offer modular equipment designs that support quick format changes and can handle both round coin cells and small-format TWS pouch batteries with minimal tooling change.
Production capacity depends on your product specifications and process configuration. For button cells, output can reach 30–60 ppm; for TWS batteries, our lines can achieve up to 0.3s/pcs with full automation.
Absolutely. Our lines are compatible with lithium cobalt oxide (LCO), lithium manganese (LMO), nickel cobalt manganese (NCM), and lithium iron phosphate (LFP), depending on your product requirements.
We offer both fully automated and semi-automated production lines based on your budget, factory layout, and production goals. Full automation is recommended for high-volume or high-consistency applications.
Our equipment integrates multiple QA systems including automatic optical inspection (AOI), laser welding monitoring, electrolyte volume control, sealing integrity checks, and online leak detection to ensure high yield.
Standard lead time for a complete turnkey line is typically 90–150 days depending on the complexity and level of customization. Installation and commissioning usually take 2–4 weeks, depending on site readiness.
Yes. We provide remote and on-site support globally, including equipment installation, operator training, maintenance guidance, and lifetime technical support via our local partners and service engineers.
Definitely. Our solutions are designed for scalability. You can start with a pilot or semi-automatic line and easily upgrade to a fully automated mass production system with minimal disruption.
To offer a tailored proposal, we typically require your target cell type (CR/TWS), battery dimensions, desired output capacity, preferred automation level, available factory space, and material specifications.