Method for the manufacture of a flow guide for the electrolyte of a single liquid flow battery

The patented technology of the utility model relates to a flow guide device for a single liquid flow battery electrolyte. It includes a shell with an internal cavity, an inlet flow channel, a guide flow pump, a reaction zone flow channel arranged in the shell for introducing the electrolyte into a single cell battery, and a transfer channel for supplying the electrolyte to the reaction zone flow channel and connecting with the inlet flow channel for the outflow The electrolytes of the single-cell battery meet together and discharge the outlet flow channel, as well as a stop-board installed in the inlet flow channel, and the transit flow channel is located at the bottom of the flow channel in the reaction area. The patented technology of the utility model can make the flow rate of the electrolytic fluid evenly distributed into the flow channel of the reaction zone, and solves the technical difficulties of increasing the voltage difference and uneven current density distribution between different single cell batteries due to the uneven distribution of the electrolyte. The flow field between the different cells is uniform, and the electrolytes are distributed evenly to each cell.

[Summary of Technology Implementation Steps]

This technology belongs to the field of electrochemical engineering and industrial installations. It is equipped with single liquid flow batteries, and a single liquid flow cell electrolyte is specially equipped.

Technical presentations

The situation of primary energy shortage in today's society will gradually appear. It is urgent to speed up the development of renewable energy such as wind energy, solar energy and biomass energy. In order to achieve stable power supply, it is very important to develop efficient scale energy storage technology. The large-scale battery energy storage unit is a renewable energy utilization, regulation and stabilization device for smart grid construction, and it plays an extremely important role. It is also one of the key technologies that must be effectively solved. Liquid current batteries are the largest energy storage batteries in the world. Due to their flexible design, the lowest full-life cost, and the ability to adapt to various energy storage occasions, they are highly competitive and have a very wide application prospect. One of the necessary technologies for renewable energy use. The positive and negative active substances of liquid-flow batteries are mainly found in electrolytes. The positive and negative electrolytes are stored in separate storage tanks outside the battery, and the liquid-flowing batteries are drained through the liquid discharge. The positive and negative electrolytes in the battery are separated by ion exchange membranes. In the process of battery charge and discharge, the ion of the active substance in the electrolyte changes in the valence state on the surface of the inert electrode. During this period, in order to achieve equilibrium, the charge of the solution on both sides of the membrane must have an ion(such as H +) synchronously migrating from one polar solution to another via an ion exchange membrane. Another liquid-flow battery system is a sedimentary liquid-flow battery, the active material of one or two electrodes of the battery W electrochemical  deposition/dissolution process storage energy. The literature(J. Power-Source 27(1989) 219) shows that in the 1980s, researchers proposed a liquid-flow battery system using sedimentary electric pairs such as copper, front, and iron. However, the surface morphology of sedimentary electrodes is not easy to control and it is easy to produce sedimentary deposits. Accumulation. In 2004, the Pletcher Group of the University of South Cape Town(Phys.Qiem. Qiem. Phys.2004) 1773) proposed a new full-deposition liquid-flow energy storage battery system based on the concept of traditional lead-acid secondary batteries, W is soluble in methyl..

[Technical Protection Point]

The utility model relates to a flow guide device for a single liquid flow battery electrolyte. The guide device includes a shell(1) with an internal cavity, an inlet flow channel(2), a guide pump(3), and a reaction zone flow channel(4) arranged in the shell(1) to introduce the electrolyte into a single cell battery. The characteristic is that the diversion device also includes a transfer channel(5) which provides the electrolyte to the flow channel(4) of the reaction zone and is connected with the entrance flow channel(2).

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