Automatic Filling Line for LiPF6 Electrolyte

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Industrial Automation & Intelligence Solutions

Stock Code：831045

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Automatic Filling Line for LiPF6 Electrolyte | Cleaning and Filling

The automatic filling line for LiPF6 electrolyte from Kehui is a closed, inert-atmosphere system designed for accurately dispensing moisture-sensitive lithium salt solutions into drums, IBCs, and small batch containers. Unlike semi-manual stations, this automatic filling line for LiPF6 electrolyte integrates a sealed filling chamber with continuous nitrogen purging, maintaining dew point below -45°C to prevent LiPF6 hydrolysis and HF formation. Servo-driven nozzles with anti-drip valves achieve ±0.05% filling accuracy, while an integrated residual recovery system captures evaporated solvent for reuse. All wetted parts are constructed from PTFE-lined 316L or Hastelloy C276, ensuring decade-long corrosion resistance.

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Advantages
Layout
Core Technology
Plant Components
Successful Case
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Advantages

Product highlights of automatic filling line for LiPF6 electrolyte:

Moisture-controlled environment – dew point ≤ -45°C with real-time monitoring and alarm
Filling accuracy ±0.05% – closed-loop load cell feedback and temperature-compensated density correction
Prevents HF generation – solvent vapor capture and alkaline scrubber interface
Changeover under 10 minutes – recipe-based positioning for 1L to 200L containers
Zero drips – spring-loaded PTFE nozzle with vacuum suck-back
ATEX certified – suitable for Zone 1 explosive atmospheres

Layout

Customer site photos:

Core Technology

The core technology of the automatic filling line for LiPF6 electrolyte:

The system operates on a mass-based metering principle using a Coriolis flow meter coupled with a servo-driven metering pump. A PLC reads real-time weight from a floor scale or in-line load cells, adjusts pump speed, and executes a two-stage filling (fast then drip) to reach target weight. The sealed chamber is kept under slight positive nitrogen pressure (0.5 mbar) with continuous exhaust through a condenser that recovers >95% of solvent vapors. A robotic arm positions the nozzle height automatically based on container type. After filling, an automated cap tightening head applies PTFE-lined caps with torque control. All parameters are stored per batch for full traceability.

Plant Components

Production line configuration for automatic filling line for LiPF6 electrolyte:

Sealed filling chamber – polycarbonate viewing panels, glove ports, nitrogen inlet, exhaust outlet
Nitrogen generation unit – membrane type, -50°C dew point, flow rate 20 Nm³/h
Servo-driven metering pump – 316L, PTFE diaphragm, 2–30 L/min range
Coriolis flow meter – ±0.05% accuracy, PTFE-lined
Robotic nozzle manipulator – 3-axis, stroke 600mm, with anti-drip nozzle
Container conveyor – stainless steel roller track with pneumatic indexing stops
Floor scale – 500 kg capacity, 1g resolution, IP67
Cap tightening head – torque adjustable 5–30 Nm, PTFE chuck
Vapor condenser – chilled water type, recovery coil, condensate return pump
Control cabinet – Siemens PLC, 12-inch HMI, barcode scanner interface, batch printer