| abstract |
The air-metal secondary battery includes an electrode made of a porous carbon material, and the value of the specific surface area of the porous carbon material according to the nitrogen BET method is 280 m 2 / gram or more, preferably 700 m 2 / gram or more, more preferably Is 1500 m 2 / gram or more, and the average charging voltage is 4.4 volts or less, preferably 4.3 volts or less, and more preferably 4.1 volts or less. |