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Initial Results - To be continued

A project log for 18650 Cell Cooling Experiments

Testing temperature rise of Samsung INR18650-25R cells under load and the effects of water cooling.

RoryRory 11/14/2019 at 22:440 Comments

Test 001 - 10A No Water Cooling

Test 002 - 10A No Water Cooling

Test 003 - 10A With Water Cooling

Test 004 - 10A With Water Cooling

Test 005 - 20A With Water Cooling

Test 006 - 20A With Water Cooling

Test 007 - 20A With Water Cooling

Results

The method of cell cooling using wraps of pneumatic hose clearly has some useful effect. During 10A testing the peak temperature was 60°C without cooling, 42°C with cooling.

During the 20A testing the temperature peaked at 62°C with cooling and 7 180° wraps per cell. Increasing wraps to 12 reduced temperatures to 56°C.

I have yet to test a 20A discharge with water cooling disabled. May have to keep a fire extinguisher handy. Will update soon.

Other thermal coupling methods are to be tried also

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