How Does Temperature Affect the Safety of Lithium-Ion ...

16, Dec. 2024

 

How Does Temperature Affect the Safety of Lithium-Ion ...

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Best temperature for batteries (LiFePO4)

I feel your pain. You may notice that the air in the shed is cooler near the floor so if possible place the batteries closer to the floor but above any potential water level. Batteries not only store electricity, they store heat. Heat, like the state of charge takes a while to change. If you have access to the tops of your cells (DIY) it'll help to blow air over them as long as air is COOLER than the cells. The terminals and busses are excellent heat conductors and radiators to pull heat from the core of the cells. When your shed cools down cooler than the cells ( when your inverter isn't heating it) is the best time to cool them down to get ahead of it. I have a fan to cool them on a timer. The rest of the time there is no air moving around the batteries (stagnant/still) because I don't want the hot air heating them. It is a good idea to deflect away (barrier/partition) hot air from the inverter and draw the hot air out with a vent fan. Remember that you need to provide an intake for fresh air if your shed is well sealed. Every location is different so look temperature differences, times and airflow to your advantage.
Good luck.

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