Can you reduce cellphone heat with graphite?

adammartin13 · June 22, 2019

Basically what I'm wondering is if placing a graphite pad (here's a link to one: https://www.newegg.com/innovation-cooling-ic-graphite-thermal-pad-40/p/2MB-000J-00003?Description=graphite pad&cm_re=graphite_pad-_-2MB-000J-00003-_-Product ) under/over a cellphone battery would reduce the heat felt on the palm. I know having personal experience with a Galaxy S5 for over five years now (I've replaced the battery I think twice now, not because of heat issues) that Samsung phones do get really hot and palm sweat seems more of an inconvenience. I have a graphite pad lying around and was wondering if applying it would be safe or noticeable.

mariushm · June 22, 2019

No. In fact it could be the opposite.

Thermal paste, Thermal Pads ... are supposed to TRANSFER HEAT from the surface of a hot component to a heatsink, like the metal of a case.

A more efficient thermal pad like the graphite pad will more efficiently transfer the heat from chips or battery to the other surface, which would actually increase the temperature of that component.