Are there batteries/accumulators that keep most of their charge for 10 years when not in use?

Question

Rechargeable batteries

The question arose when I began to think how to make a gas leak sensor at a price of less than 1000 rubles in apartments, which would signal a leak by radio / gsm. The sensors themselves can be found for 200 rubles. They can signal as a car alarm control panel or a key fob with an on / off apartment alarm button. And in the basement of the entrance there is an antenna, a signal reading device and a valve that shuts off the gas to the entrance. The work of housing and communal services should be minimized so that everything is cheap. That is, devices in apartments should be autonomous boxes. That's why they need such batteries.

Answer 1

If it’s an apartment, then you can try to collect energy by induction by simply extending the antenna wire from the sensor and putting a step-up transformer / microcircuit ... I
guess that it won’t work that way and you will need to at least select the resonant frequency on the input circuit of the coil / diode bridge, but then there is no doubt that such a thing is possible in principle, if with wifi / lte they manage to collect enough energy for wireless communication (of course, not constant, but as the required amount is collected).

Answer 2

Li-Mn