Professional custom lithium-sulfur battery pilot line solutions from TOBGROUP. We provide Li-S battery manufacturing process optimization, battery equipment supply, and battery technical guidance.
TOBGROUP offers a world-leading lithium-sulfur battery pilot line solution for Li-S batteries manufacturing, addressing key industrial challenges. Focusing on three core issues—polysulfide shuttle suppression, high-loading cathode production, and lithium metal anode protection—we provide a crucial bridge from academic research to mass production.
● Dedicated Process Coverage
(1) Sulfur-based composite cathode preparation (carbon-sulfur composite/conductive polymer coating)
(2) High-precision dual-function electrolyte injection
(3) In-situ lithium metal anode treatment (surface modification/3D scaffold integration)
(4) Multi-level encapsulation barrier technology (anti-permeation metal layer/self-healing coating)
(5) Dynamic formation activation process (multi-stage voltage control)
● Key Parameters
|
Item |
Parameter Range |
|
Capacity |
300–1500 cells/day (phased expansion) |
|
Sulfur Loading Support |
3–8 mg/cm² (customizable up to 12 mg/cm²) |
|
Cell Thickness |
2.5–8 mm (compatible with ultra-thin flexible design) |
|
Energy Density Target |
400–500 Wh/kg (after system optimization) |
TOBGROUP Lithium-sulfur Battery Pilot Line Standard Configuration with Full Customization Support
|
Parameter Item |
Standard Configuration |
Customizable Options |
|
Capacity |
300–800 cells/day |
Up to 1500 cells/day |
|
Cell Type |
Pouch/Prismatic (multi-layer stacking) |
Cylindrical/Special Shapes |
|
Sulfur Loading Range |
3–8 mg/cm² |
Up to 12 mg/cm² |
|
Coating Width |
200–400 mm |
100–600 mm |
|
Electrode Drying Method |
Segmented temperature control (prevents sulfur volatilization) |
Vacuum low-temperature drying |
|
Injection Accuracy |
±0.01 g/Ah |
Dual-component electrolyte injection |
|
Environmental Control |
H₂O ≤10 ppm, O₂ ≤0.1 ppm |
H₂O ≤5 ppm, O₂ ≤0.05 ppm |
|
Sealing Method |
4-layer Al-plastic film heat sealing |
Metal case laser welding |
|
Formation Cycle |
5–7 days (multi-stage activation) |
Programmable, as short as 3 days |
|
Data Collection Points |
200+ parameters/cell |
500+ parameters/cell (extended analysis module) |
|
Power Consumption |
80–120 kW |
Energy-saving mode optional |
|
Floor Space |
300–500 m² |
Compact layout from 200 m² |
● Multi-Level Shuttle Effect Suppression System
(1) In-situ electrochemical characterization module (real-time monitoring of polysulfide migration)
(2) Custom functional separator coating unit (MOFs/conductive polymer coatings)
(3) Dual-function electrolyte precision dosing system (targeted additive regulation, e.g., LiNO₃)
● High-Loading Electrode Manufacturing Platform
(1) Dedicated sulfur cathode slurry dispersion technology (nano-conductive network construction)
(2) Ultra-thick electrode gradient compaction process (layered porosity control)
(3) Dry electrode compatibility (avoids solvent-induced side reactions)
● Lithium Metal Anode Protection Solutions
(1) Integrated Li anode surface treatment station (artificial SEI formation)
(2) Optional solid electrolyte interface layer (sulfide/PEO in-situ deposition)
(3) Pressure-adaptive assembly system (dendrite suppression)
● Intelligent Data Closed Loop
(1) MES system with shuttle coefficient algorithm (Coulombic efficiency–voltage curve correlation analysis)
(2) Full-process corrosion protection monitoring (humidity ≤15% RH, oxygen ≤0.1 ppm)
3 Steps to Build Your Lithium-sulfur Battery Pilot Line
Step 1: System Diagnosis
● Analyze customer material systems (sulfur host type/electrolyte formula/anode solution)
● Develop shuttle suppression strategies (separator modification/electrolyte optimization/interface engineering)
Step 2: Production Line Customization
● Design anti-sedimentation slurry tanks based on sulfur cathode characteristics
● Configure fully inert atmosphere operating units for lithium metal anodes
Step 3: Process Handover
● Train equipment maintenance for corrosion protection
● Transfer emergency response protocols for polysulfide leakage
Core enablers of technological implementation
Actionable insights from planning to execution
Yes, gradient rolling technology supports up to 12 mg/cm²; specialized coating heads prevent cracking.
Yes, standard glovebox with O₂ ≤0.1 ppm and H₂O ≤10 ppm.
Yes, compatible with sulfide/polymer solid electrolytes; includes hot-press lamination modules.
Two-step injection: base electrolyte infiltrates sulfur cathode first, followed by functional additive electrolyte.
Standard delivery in 24 weeks (includes 15-day corrosion resistance testing).
Yes, customized materials: porous carbon-sulfur composites (70%–90% sulfur), Li anode additives, self-healing Al-plastic film.
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