XIAO ESP32 S3 Overheating

Anyone have any ideas on how to combat XIAO ESP32 S3 overheating issues? I want to attach a LiPO battery to it and create an enclosure but will most definitely explode. Also need a solution which will keep the whole enclosure as small as possible.

Already purchased a 25mm cooling fan but need another alternative that will keep the enclosure small but cool.

Hi, according to the description of genius designer Smeiltecho, if the shell is added, the temperature will definitely rise sharply inside, so the exchange of internal air and external air is the solution, and I can’t think of any other method except fan cooling