Air-metal secondary battery unit and air-metal secondary battery module including same

Abstract

The present invention relates to an air-metal secondary battery unit and an air-metal secondary battery module including the same. The present invention provides an air-metal secondary battery module, comprising: one or more metal-air secondary battery units, each of which has a water intake part for taking an aqueous solution therein and a gas outlet port for discharging gas generated during charging; an aqueous solution storage unit which stores the aqueous solution; an aqueous solution supply unit which connects the one or more water intake parts to the aqueous solution storage unit; and a gas discharge unit which is connected to the one or more gas outlet ports to discharge the gas discharged from the gas outlet ports to the outside.; According to the present invention, it is possible to prevent hardening of a negative electrode gel due to the discharging and charging of one or more metal-air secondary battery units and to prevent the expansion of a battery case due to gas generation, so that the metal-air secondary battery can be modularized to be commercially used in various fields, for example, in a vehicle battery, in which high-capacity electric energy is required.

Description

【Technical field】 [0001] The invention relates to an air-metal secondary battery combination and an air-metal secondary battery module comprising the air-metal secondary battery combination. More specifically, the present invention relates to an air-metal secondary battery combination capable of discharging and charging and an air-metal secondary battery module including more than one air-metal secondary battery combination. 【Background technique】 [0002] An electrochemical power source is a device in which electrical energy can be generated according to an electrochemical reaction. This device includes air metal batteries such as air zinc batteries and air aluminum batteries. The air metal battery uses a cathode made of a metal that is converted into a metal oxide during discharge, which acts as a permeable membrane including water molecules through the anode, and uses an air anode that contacts oxygen in the air to generate hydroxide ions membrane. [0003] This air me...

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Problems solved by technology

[0012] In this way, when the air metal secondary battery is charged, the air metal secondary battery case containing the cathode gel, air anode film, cathode current collector, etc. expands due to the oxygen generated inside, and the air metal secondary battery case may appear broken problem

[0013] On the other hand, recently, green energy has been attracting attention, and although more than one air metal secondary battery is connected, research and development of modules such as applying battery modules to automobile batteries that require large-capacity electrical energy are continuously being carried out. Among them, however, the common use of air metal secondary battery modules is impossible without solving the various problems mentioned above

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