• Challenge: The oven temperature in the coating machine must remain steady at 80-120 °C, as the solvent evaporation rate directly affects coating uniformity.
• Solution: A chiller system, such as a 25 HP dual-temperature, dual-control model, provides two-stage cooling:
  1. Stage 1: 10°C chilled water cools the oven heating system, preventing heat buildup.
  2. Stage 2: 5°C ice water regulates the temperature of the coating roller surface, eliminating heat stress that can cause electrode sheet warping.
• Result: Coating thickness deviation is reduced from ±3 μm to ±1 μm, and drying efficiency increases by 15%.

Equipment requirement: For an 800-ton calender, the roller surface temperature must be maintained at 40 ± 2 °C during operation.

• Closed-loop chiller system with a cooling capacity of 200 kW
• Built-in microcomputer temperature control module for real-time adjustment of roller cooling water flow
• Equipped with a pressure compensation device to handle dynamic pressure fluctuations between 0.6 and 1.2 MPa

Special requirement: During electrolyte filling, the environment must be maintained at 25 ± 1 °C with a dew point of ≤ -40 °C.

• Air-cooled chiller (outlet water at -15 °C) operating in conjunction with a rotary dehumidifier
• Three-stage heat exchange system:
  1. Primary cooling: Outdoor unit pre-cools the air to 15 °C
  2. Deep dehumidification: Lithium chloride rotary wheel adsorbs moisture
  3. Precision temperature control: Plate heat exchanger adjusts the temperature to the target level

Result: Electrolyte infiltration speed increased by 20%, while moisture content remains consistently below 15 ppm