Battery Formation and Capacity Grading Line

A masterpiece of energy‑and‑data‑dense system; the core process equipment that defines the innate quality of battery cells; the data hub and quality arbiter connecting manufacturing to application.

Product Introduction

The lithium battery formation and grading line is the most critical, highest‑investment, and most technically complex backend equipment system in the manufacturing process of lithium‑ion batteries (including lithium iron phosphate, ternary materials, sodium‑ion batteries, etc.). It integrates precision charge/discharge control, high‑accuracy measurement, automated logistics, environmental control, and big data management. It is designed to perform the initial “activation” and “capability calibration” of manufactured battery cells, directly determining the initial performance, consistency, safety, and outgoing quality of the cells.

The lithium battery formation and grading line serves as the heart and brain of battery manufacturing. It is not only a core process step ensuring product performance and safety, but also the most important data source for battery factories to achieve digital and intelligent transformation. Its technological level and operational status directly reflect the core competitiveness of battery manufacturers. As batteries evolve toward higher energy density, faster charging speed, and longer cycle life, ever‑higher requirements are placed on the accuracy, efficiency, intelligence, and energy recovery capability of formation and grading lines.

Product Features

Charge‑Discharge Laboratory

The formation and grading line is not just physical processing equipment, but rather a "giant precision charge‑discharge laboratory."
Precise Energy Control

Through efficient data mining, it enables precise control of energy.
High Stability

High-quality components and advanced control algorithms ensure long-term stable operation.
Energy Recovery

Equipped with Guanjia's self-developed energy-regenerative load and system, achieving over 85% energy recovery.
Smart Sensing

Supports vision guidance and force‑control sensing for intelligent operation and assembly.
Smart Connectivity

Supports industrial Ethernet and multiple communication protocols for easy integration into smart factory systems.

Function Introduction

Function Items

Bi‑directional Energy Flow Management

High Regeneration Efficiency

Multi‑channel Independent Control

Fire Protection System

Function Description

he core of the line is the energy‑regenerative power supply, which integrates AC‑DC and bi‑directional DC‑DC modules. When charging the battery, energy flows from the grid to the battery; when the battery is discharging, the energy is not dissipated as heat through resistors, but is efficiently recovered.

Guanjia’s self‑developed energy‑regenerative power supply achieves a discharge regeneration efficiency of typically over 80%. Compared with traditional energy‑consuming equipment, it significantly reduces electricity costs and the burden on air conditioning cooling.

The line typically has tens of thousands of channels, each capable of independent programming and operation to accommodate personalized process curves for different batteries (e.g., constant‑current constant‑voltage charging, constant‑current discharging, etc.).

The line is equipped with smoke detectors, temperature sensors, and a specialized fire suppression system. It can issue alarms and automatically activate extinguishing measures at the early stage of thermal runaway in battery cells, achieving integrated protection.