Advanced Battery Formation & Grading Solutions for Lithium, Sodium-Ion, NiMH and Lead-Acid Batteries
What is Battery Formation & Grading?

Battery Formation
Battery formation is the initial charging and discharging process after cell assembly. During formation, a stable Solid Electrolyte Interphase (SEI) layer is created on the electrode surface, which is essential for battery performance and long-term stability.
Battery Grading
Battery grading classifies cells according to key performance parameters such as:
● Capacity
● Internal Resistance (IR)
● Voltage
● Energy Efficiency
● Self-Discharge Rate
The grading process ensures that only cells with similar characteristics are grouped together for battery pack assembly, improving overall pack consistency and safety.
Battery Types We Support
Cylindrical Battery Formation & Grading
Suitable for:
● 18650 Cells
● 21700 Cells
● 26650 Cells
● 32700 Cells
● Custom Cylindrical Cells
Applications:
● Electric Vehicles (EV)
● Energy Storage Systems (ESS)
● Power Tools
● E-Bikes
● Consumer Electronics
Prismatic Battery Formation & Grading
Suitable for:
● LFP Prismatic Cells
● NMC Prismatic Cells
● Sodium-Ion Prismatic Cells
Applications:
● EV Battery Packs
● ESS Containers
● UPS Systems
● Telecom Energy Storage
Pouch Cell Formation & Grading
Suitable for:
● Polymer Lithium Batteries
● Soft Pack Batteries
● High-Energy Density Cells
Applications:
● Consumer Electronics
● Drones
● Medical Devices
● Portable Power Stations
Button Cell Formation & Testing
Suitable for:
● CR Series Coin Cells
● Rechargeable Button Batteries
● Laboratory Research Cells
Applications:
● Wearable Devices
● Medical Instruments
● Electronic Components
Sodium-Ion Battery Formation & Grading
Specially designed for emerging sodium-ion battery production lines.
Features:
● Multi-stage formation process
● High-precision voltage control
● Flexible grading criteria
● MES integration capability
Key Features
High Precision Measurement
● Voltage Accuracy: ±0.02% F.S.
● Current Accuracy: ±0.05% F.S.
● Capacity Calculation Accuracy: High Precision Integration
Energy Saving Design
● Regenerative Energy Feedback Technology
● Reduced Power Consumption
● Lower Operating Costs
Flexible Configuration
Available channel options:
● 8 Channels
● 16 Channels
● 24 Channels
● 32 Channels
● 64 Channels
● 128 Channels
● Customized Multi-Channel Systems
Intelligent Software
● Real-Time Monitoring
● Data Analysis
● Automatic Report Generation
● MES/ERP Integration
● Remote Management
Reliable Safety Protection
● Overvoltage Protection
● Overcurrent Protection
● Reverse Connection Protection
● Temperature Monitoring
● Emergency Stop System
Customized Battery Formation & Grading Equipment
Every battery manufacturer has unique requirements. Hongda offers fully customized solutions based on:
Battery Parameters
Cell Type
● Voltage Range
● Capacity Range
● Charging Current
● Discharging Current
Production Requirements
● Daily Output
● Factory Layout
● Automation Level
● Data Management Requirements
Optional Functions
● Barcode Scanning
● MES Connection
● CAN Communication
● RS485 Communication
● Temperature Acquisition
● Automated Material Handling
Our engineering team can design complete formation and grading systems according to your specific battery production process.
Typical Applications
Battery Cell Manufacturers
● Cell Formation
● Capacity Grading
● Quality Control
Battery Pack Manufacturers
● Cell Sorting
● Incoming Inspection
● Pack Matching
Research Institutes
● New Battery Development
● Performance Evaluation
● Cycle Life Testing
Universities and Laboratories
● Material Research
● Prototype Validation
● vBattery Characterization
Why Choose Hongda?
✅ More than 15 years of battery testing experience
✅ Complete battery testing and production line solutions
✅ Support for lithium-ion, sodium-ion, NiMH and lead-acid batteries
✅ Customized hardware and software development
✅ Worldwide installation and technical support
✅ CE compliant equipment
✅ Fast delivery and professional after-sales service
Frequently Asked Questions (FAQ)
What battery types can your formation and grading equipment support?
Our systems support cylindrical, prismatic, pouch, button cell, lithium-ion, sodium-ion, NiMH, and lead-acid batteries.
Can the equipment be customized?
Yes. We can customize voltage range, current range, channel quantity, communication protocols, software functions, and automation systems.
Do you provide complete battery production line solutions?
Yes. In addition to formation and grading equipment, we provide complete battery production lines, battery pack assembly lines, EOL testing systems, aging systems, and laboratory testing equipment.
Can the equipment connect to MES systems?
Yes. MES, ERP, barcode management, and database integration are available.
Contact Us
Looking for a reliable Battery Formation & Grading Equipment manufacturer?
Contact Hongda today for a customized solution based on your battery type, production capacity, and testing requirements.
Contact Us
Looking for a reliable battery supplier?
Contact our team for product catalogs, technical specifications, OEM/ODM support, and competitive quotations.








