Developing Solid-State Lithium Ion Battery with Oxide-Based Electrolytes

Abstract

Our society faces energy challenges which are caused by the burning of fossil fuel. As a result, we face serious climate change. To address these challenges, fossil fuel’s energy paradigm should be transformed into sustainable one through further utilizing renewable sources like solar power and wind. However, intermittent property and low quality of renewable sources make their utilization difficult. Energy storage technologies can be a key player for transforming fossil fuels energy paradigm into sustainable energy one by extending the utilization of renewable sources like wind and solar power and by utilizing electric vehicles. The advent of novel applications such as energy storage system for renewable sources and electric vehicles makes present LIB technologies challengeable because these large-scale applications need much demanding requirements than those in portable devices in terms of safety, cost, and cycle life. There are several approaches for solving these demanding requirements. One of promising approaches is the use of solid electrolyte that can bring up several opportunities. For example, solid electrolytes have large stable electrochemical window which can allow us to utilize known materials with high voltage resulting in high energy density without causing any safety problem. In this talk, I will discuss about interface reactions between Nasicon-type or Garnet-type solid electrolytes and composite electrode or Li metal and talk about the developing solid-state battery with these electrolytes.