New Concepts in Battery and Solid Electrolyte Design

  • TH Department Online Seminar
  • Date: Aug 18, 2022
  • Time: 03:30 PM (Local Time Germany)
  • Speaker: Prof. Bettina V. Lotsch
  • Max Planck Institute for Solid State Research, Nanochemistry Department, Stuttgart, DE
  • Location:
  • Room: Meeting ID: 943 1376 6643 | Passcode: 296875
  • Host: TH Department
New Concepts in Battery and Solid Electrolyte Design
Solid electrolytes (SEs) are a key component of all-solid-state batteries (ASSBs), which promisehigher energy density along with safer operation compared to commercial Li ion batteries. As theASSB technology matures, research in the field gravitates towards questions regarding stability,scalability, and integration of solid electrolytes into ASSBs with extended cycle life.

As a consequence, new research areas have been emerging lately, including interfacial engineering and microstructure design, and questions such as the role of stack pressure on battery performance increasingly enter the focus of ASSB design. In addition, given the daunting global energy outlook, new concepts for energy storage are in high demand.

In this talk, we will first discuss the development and optimization of lithium and sodium thiophosphate SEs and highlight the importance of synthetic control and microstructure design as routes to obtain phase-engineered solid electrolytes with enhanced ionic conductivities. We will then introduce the concept of solar batteries and showcase the first example of a direct aqueous solar battery based on the earth-abundant carbon nitride potassium poly(heptazine imide), K-PHI.
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