Preparation And Properties Of High Performance,Self-Healing,Zwitterionic Solid Electrolyte

With the increasing demand for sustainable energy,the research and development of gel polymer electrolytes with electrical conductivity and mechanical properties is particularly important.Compared with traditional liquid electrolyte,solid electrolyte has many irreplaceable characteristics,such as leakproof and suitable for various flexible electronic devices.However,it still has some disadvantages,such as low conductivity and single species.Therefore,it is necessary to develop new solid electrolytes by adding various fillers and changing the raw materials or process of preparation.Due to the particularity of its own structure,zwitterionic solid electrolyte has many advantages for energy storage devices such as high-efficiency solid state supercapacitor or battery,such as strong water retention,easy ion migration and strong mechanical properties.In this paper,the current development of solid electrolyte is summarized and classified,and its types,preparation process,properties and application are described in detail.Then two preparation and performance research schemes for high performance,self-healing zwitterionic hydrogel electrolytes are proposed.In order to solve the contradiction of high conductivity and high mechanical properties,the first problem to be solved is the deep understanding of ion transport and conduction mechanism in solid electrolyte.Therefore,in the second chapter of this paper,a new zwitterionic hydrogel electrolyte is designed.By changing the proportion of polymerized monomer,the content of lithium salt and various tests,the reasons for the change of conductivity in different states are proposed,and the supercapacitor with high performance is assembled by improving the electrode preparation method.In the third chapter,based on the understanding and experience of previous work,another kind of zwitterion was used to prepare a self-healing,highly conductive hydrogel electrolyte with strong mechanical properties and good adhesion,and its various properties were characterized.The work of this paper not only deepens the understanding of the research progress of solid electrolyte,but also provides a new idea for the field of solid electrolyte.At the same time,two kinds of zwitterionic gel electrolytes with great application prospects in the field of energy storage equipment are obtained.