Oxide‐Based Solid‐State Batteries: A Perspective on Composite Cathode Architecture
Abstract
The garnet‐type phase Li7La3Zr2O12 (LLZO) attracts significant attention as an oxide solid electrolyte to enable safe and robust solid‐state batteries (SSBs) with potentially high energy density. However, while significant progress has been made in demonstrating compatibility with Li metal, integrating LLZO into composite cathodes remains a challenge. The current perspective focuses on the critical issues that need to be addressed to achieve the ultimate goal of an all‐solid‐state LLZO‐based battery that delivers safety, durability, and pack‐level performance characteristics that are unobtainable with state‐of‐the‐art Li‐ion batteries. This perspective complements existing reviews of solid/solid interfaces with more emphasis on understanding numerous homo‐ and heteroionic interfaces in a pure oxide‐based SSB and the various phenomena that accompany the evolution of the chemical, electrochemical, structural, morphological, and mechanical properties of those interfaces during processing and operation. Finally, the insights gained from a comprehensive literature survey of LLZO–cathode interfaces are used to guide efforts for the development of LLZO‐based SSBs.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 20, 2022
- Source ID
- 10.1002/aenm.202201939
Entities
People
- Alexandra C. Moy
- André Weber
- Anh T. Ngo
- Arnulf Latz
- Brandon C. Wood
- Dina Fattakhova-Rohlfing
- Eric D Wachsman
- Felix H. Richter
- Jagjit Nanda
- Jan Dippell
- Jeff Sakamoto
- Jürgen Janek
- Larry Curtiss
- Liwen F Wan
- Marius Müller
- Martin Engels
- Martin Finsterbusch
- Matthew Klenk
- Pallab Barai
- Peter Zapol
- Ricky Hoft
- Rongpei Shi
- Tae Wook Heo
- Tanner Hamann
- Till Fuchs
- Timo Danner
- Venkat Srinivasan
- Yaoyu Ren
Organizations
- Argonne National Laboratory
- Federal Ministry of Research, Technology and Space
- Forschungszentrum Jülich
- Karlsruhe Institute of Technology
- Lawrence Livermore National Laboratory
- Oak Ridge National Laboratory
- United States Department of Energy
- University of Maryland
- University of Michigan