From Lab to Industrial Standard:How Dongou’s Concentrator Empowered EV Battery Manufacturing

Pain Points

In 2016, a Chinese tungsten industry leader (Shanghai-listed,SHA:600549) faced dual challenges in ternary precursor production:

  • Primitive sedimentation equipment constrained both product quality (irregular particle morphology/size distribution) and production capacity
  • Existing technology couldn’t meet growing demands for high-performance lithium-ion battery materials

Solution

Developed the pioneering Automated Filtration-Concentrator featuring:

  • Self-regenerating filter array with grouped backflush – ensures continuous production
  • Integrated PLC control (pressure-flow-stirring interlock)
  • Pioneering field test – deployed first industrial prototype pro bono
  • Patent-protected innovation

Subsequent Impact

Fully automated operation with self-cleaning capability ensures higher process availability and filtration efficiency

  • 20% 1 production throughput
  • 15% tighter particle distribution (D90data)
  • Optimized morphology uniformity meeting NCM811 standards

Industry-Wide Adoption

  • Adopted by 98% of China’s precursor producers
  • Implemented in 5+ countries’ battery supply chains
  • Enabled industry-wide 20-30% efficiency gains
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