Simulated battery device of three-electrode system for sodium-sulfur batteries

Abstract

The invention discloses a simulated battery device of a three-electrode system for sodium-sulfur batteries. The simulated battery device comprises two main bodies and a solid electrolyte. The solid electrolyte is positioned between the two main bodies and is hermetically adhered with the two main bodies by polytetrafluoroethylene tapes or polyvinylidene fluoride tapes, two accommodating cavities are respectively arranged in centers of the two main bodies, one end of each accommodating cavity is closed, conducting wire winding positions are respectively arranged at bottoms of the two main bodies, a reference electrode is attached to an end of the solid electrolyte, and the two main bodies are connected with each other by fixing parts. Further, space between each polytetrafluoroethylene tape or each polyvinylidene fluoride tape and the solid electrolyte is sealed by a high-temperature mending agent. The simulated battery device has the advantages that the simulated battery device is quite simple in operation, a working electrode, a counter electrode and the reference electrode are relatively fixedly and spatially positioned, repeatable operability and reproducibility of results are excellent, and electrochemical parameters can be accurately measured by the three-electrode system; and the reference electrode can be independent from the working electrode and the counter electrode and accordingly is high in stability.

Description

technical field [0001] The invention belongs to the field of sodium-sulfur batteries, in particular to a three-electrode system simulation battery device for sodium-sulfur batteries. Background technique [0002] As the energy shortage continues to intensify, the supply of energy is also gradually diversified. Vigorously developing renewable energy such as wind energy and solar energy is the general direction of global power production in the future. However, the power output of renewable energy changes and fluctuates synchronously with the strength of resources such as wind and sunlight, so it cannot be directly output to the grid or sold to users. It needs to be stabilized before it can be safely connected to the grid for output. Studies have found that sodium-sulfur batteries have the advantage of large-scale energy storage, making them the most ideal energy storage batteries for wind and solar power generation. Obviously, the performance of sodium-sulfur batteries is cl...

AI Technical Summary

Problems solved by technology

Some researchers have used a two-electrode system to study the electrochemical process of the electrode, but no specific polarization values ​​have been obtained.

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