Aluminum-air battery, battery pack and power generator set

Abstract

The invention discloses an aluminum-air battery, a battery pack and a power generator set. The aluminum-air battery comprises a battery main body, wherein the battery main body is connected in serieswith a positive plate through a lead-out strip in a contact conducting manner to form the battery pack; multiple negative plates on the battery pack are connected through single insulating plates intoa whole, and are inserted into the same liquid tank; multiple battery packs are connected in series or in parallel, and share the same liquid tank, so as to form a uniformly controlled power generator set. Compared with conduction in the prior art, by improvement on the battery connection form, the conduction of the invention has the advantages that operation and processing technologies are simpler, and aluminum polar plates are more convenient and easier to replace, so that the fault risk is greatly reduced; turning on and turning off can be quickly realized, and no blocking fault is caused,so that the aluminum-air battery is safer; by arrangement of a boss, anode contact short circuiting is prevented, and the opposite expansion action is counteracted, so that the battery pack is more compact in overall structure and easier to minimize; the aluminum-air battery can be combined into the battery pack and the power generator set, and meets a multilevel demand.

Description

technical field [0001] The invention relates to the technical field of chemical batteries, in particular to an aluminum-air battery, a battery pack and a generator set. Background technique [0002] Aluminum-air battery is a clean new energy battery, which obtains electrical energy through the electrochemical reaction between electrolyte and aluminum. In the process of converting chemical energy into electrical energy, aluminum is used as the negative electrode of the battery, and it is set as a plate-shaped electrode plate, which will be continuously consumed during the reaction process. Since each single battery in this chemical reaction can only generate a DC voltage of about 1V, multiple single batteries are connected in series to form a battery pack during use, and 12V, 24V, 48V, 12V, 24V, 48V, 96V and other voltages. [0003] In the prior art, a plurality of single cells of a battery pack are usually connected in series by welding with metal wires. This connection m...

AI Technical Summary

Problems solved by technology

This connection method will cause the following problems: each single battery needs to be welded, so the processing technology is complicated, it takes too much man-hours, and the manufacturing cost increases; too many welding points lead to many failure points; because the aluminum plate of the battery is The negative electrode needs to be replaced due to chemical consumption during the use of the battery, which requires re-welding after each replacement before it can be used next time, resulting in serious inoperability;

This will cause the following problems: the aluminum plate needs to be replaced when it is replaced, and the aluminum plate is completely immersed in the electrolyte, and it is replaced piece by piece, which is complicated and time-consuming. The risk of liquid leakage, and it is easy to cause rubbing when replacing the aluminum poles one by one, resulting in the interconnection of the aluminum poles of two adjacent single cells, resulting in electrical failures such as short circuits

This structural form has the following problems: the connection between the single battery and the lower liquid pipe or liquid tank needs to be sealed, and long-term use or repeated plugging and unplugging may easily cause liquid leakage; The aluminum electrode and the electrolyte need to be separated. The commonly used method is to separate the electrolyte. Since the plug-in electrolyte can only use its own gravity or other pressurized equipment to flow downward through the channel at the connection, it will easily cause slow flow and power failure. The process is too long, the waste of aluminum materials and other disadvantages

Due to the pressure given to the liquid by the water pump system, and a certain amount of gas will be generated in the liquid cavity of each single battery during the reaction process, this will cause the liquid cavity of the single battery to expand to both sides, and the adjacent two cells of the stack The expansion of the liquid cavity of the bulk battery leads to an increase in the distance between two adjacent single cells of the stack (the outside of the liquid cavity is the positive electrode, and if it contacts, it will cause electrical failures such as short circuits), which leads to a substantial increase in the overall size of the stack

However, the large increase in the size of the electric stack is not convenient for the miniaturization of the product, which affects the post-processing and production of the product and the limitations of the user's use.

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