Battery knowledge · Thermal management and heat transfer
Condensation control
Keeping liquid water out of a sealed pack that breathes as it heats and cools. Air drawn in through the pressure-equalisation vent can condense on surfaces chilled below its dew point, so designs combine membrane vents that pass air but not water, desiccant cartridges that soak up moisture, and coolant control that avoids over-chilling.
- Also called
- desiccant, desiccant cartridge, breather vent
Example
Thermal management and heat transfer: an example situation
Equal total heat in different layouts can produce different gradients. Average temperature can miss a hot spot.
Read Condensation control alongside Chiller in this context. A heat exchanger in which evaporating refrigerant from the air-conditioning circuit cools the battery coolant below ambient temperature. A radiator can only bring coolant close to outside air temperature; the chiller is what lets a pack fast-charge on a 35 °C day. Stationary storage containers use packaged chiller units for the same job.
Use in Lemonergy
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References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- A General Energy Balance for Battery Systems
Dawn Bernardi, Ellen Pawlikowski, John Newman · Journal of The Electrochemical Society · 1985
Topic background · Battery energy balance and irreversible and reversible heat contributions. Reduced thermal models require explicit assumptions and current-sign conventions.
- University Physics Volume 2, §1.6: Mechanisms of Heat Transfer
OpenStax, Rice University
Topic background · Conduction, convection, radiation and thermal resistance.