Integrating mercury cell in Bolt device

Can you integrate a mercury cell in the Bolt Wi-Fi module so that it can operate at all time?
That is,whether the supply is available or not in the building,it should operate like the scientific calculators we are now using as a backup to power up the device when the electricity is gone.

@ravialikkal Development of such a device with power storage ability would increase the price of the overall Bolt device. This would not be feasible for most of the end customers. Also, the Bolt device would require much more power than what is typically supplied by the coin battery.

However, there are various other battery circuits which supply power required by the Bolt.