China's MIIT Recognizes DODGEN Melt Crystallization Technology for 72% Energy Reduction in Ethylene Carbonate Purification
China's Ministry of Industry and Information Technology (MIIT) has recognized DODGEN's continuous melt crystallization technology for achieving a 72% energy reduction in ethylene carbonate (EC) purification. This process, crucial for lithium-ion battery electrolytes, replaced conventional distillation, eliminating approximately 21,000 tonnes of CO₂ annually.
Why it matters
This technological advancement offers a more sustainable and energy-efficient method for producing critical battery materials, contributing significantly to decarbonization efforts in the rapidly growing electric vehicle and energy storage sectors. It demonstrates a practical solution for reducing the carbon footprint of industrial chemical processes.
Government-selected low-carbon case shows DODGEN continuous melt crystallization replacing conventional distillation, eliminating ~21,000 tonnes of CO₂ per year in lithium-battery electrolyte solvent production
SHANGHAI , July 16, 2026 /PRNewswire/ -- A battery-grade ethylene carbonate (EC) purification retrofit jointly delivered by Shanghai DODGEN Chemical Technology Co., Ltd. and Shida Shenghua (Quanzhou) Co., Ltd. has been selected as a national low-carbon and energy-saving case by China's Ministry of Industry and Information Technology (MIIT).
The retrofit replaced a conventional distillation process for purifying ethylene carbonate, a core solvent in lithium-ion battery electrolytes, with DODGEN continuous high-purity melt crystallization. According to the official MIIT case record, the retrofit cut unit energy consumption from 120.9 to 33.3 kg of standard coal per tonne, a reduction of approximately 72%, across a 90,000-tonne-per-year EC production line.
The verified outcomes recognized by MIIT include:
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