A first
zinc-air battery module and a second
zinc-air battery module are formed by connecting two
zinc-air batteries in series, the two zinc-air batteries are located on the same plane, the first zinc-air battery module and the second zinc-air battery module are arranged in a mirror symmetry mode, the positive
electrode part is close to the mirror surface position, and the negative
electrode part is close to the mirror surface position. The gas
diffusion partition plate is arranged between the first zinc-air battery module and the second zinc-air battery module, the first zinc-air battery module and the second zinc-air battery module are connected in series and then are connected with the charging wire, the first zinc-air battery module and the second zinc-air battery module are arranged in the shell together, and the side surface of the shell has air permeability. According to the internal
oxygen type zinc-air battery power
bank with the built-in positive
electrode and
oxygen introduction from the side face, the zinc-air battery power
bank can be attached to the back face of a
mobile phone and then can be flatly placed on a table top in the using process, and meanwhile the zinc-air battery power
bank has the advantages of being light, rapid in charging, low in price and convenient to carry.