Development and challenges of solid-state lithium-ion batteries

Abstract

Lithium-ion battery as a new energy storage method is widely used in many fields. The safety problems and efficiency problems are the key drawbacks to be solved currently. Traditional liquid-state lithium-ion batteries have problems such as low electrochemical window, dendrite growth, flammability of electrolyte which may cause explosion, and leakage. One improvement of electrolytes is using solid electrolytes to replace liquid electrolytes. Different from liquid-state lithium-ion battery, solid-state battery has many advantages such as wide electrochemical window, high energy density, high safety and so on. In this work, the specific structure of different batteries is introduced and the advantages and drawbacks of liquid-state lithium-ion battery and solid-state battery are given. Besides, this paper also analyzes the necessity and feasibility of solid-state batteries replacing traditional liquid-state batteries. Moreover, the problems which should be paid attention to and development trends of solid-state battery are also being discussed. It lays the foundation for further exploring of the industrialization prospect of solid-state lithium-ion battery.