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NOTICE FOR DESIGNING BATTERY PACK

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NOTICE FOR DESIGNING BATTERY PACK
Notice for Designing Battery Pack
1. Pack design
 1.1 Battery pack should have sufficient strength and battery should be protected from mechanical shock
 1.2 No cell movement in the battery pack should be allowed.
 1.3 No Sharp edge components should be inside the pack containing the battery.
2. Avoid some components to contact the edge of packing foil of batteries
3. Tab connection
 3.1 Ultrasonic welding or spot welding is recommended to connect battery with PCM or other parts.
 3.2 If apply manual solder method to connect tab with PCM. Below notice is very important to ensure battery performance.
  a. The solder iron should be temperature controlled and ESD safe
  b. Soldering temperature should between 325-380℃
  c. Soldering time should not be longer than 3s
  d. Soldering times should not exceed 3 times ,secondary welding should be done after the poles are cooling;
  e. Directly heat cell body is strictly prohibited,
  f. Don’t let the electric iron contact the surface of the cell.