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Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

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Defect Strategy in Solid-State Lithium Batteries.

Jinshuo Mi¹, Likun Chen¹, Jiabin Ma¹

¹Shenzhen All-Solid-State Lithium Battery Electrolyte Engineering Research Center, Institute of Materials Research (IMR), Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China.

|October 11, 2023

Summary

This summary is machine-generated.

Defect engineering enhances solid-state lithium batteries (SSLBs) by improving ion transport and stability. This review details how defects optimize electrodes and electrolytes for better performance in high-security energy applications.

Keywords:

defect strategy electrodes ion conductivity solid-state electrolytes solid-state lithium battery

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Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Solid-state lithium batteries (SSLBs) offer high security but suffer from poor charge transfer, high interface impedance, and limited cycle stability.
Defect engineering is a key strategy to overcome these limitations by modifying material properties.

Purpose of the Study:

To systematically review the role and mechanisms of defect engineering in SSLBs.
To analyze how defects influence electrode and solid-state electrolyte performance.
To inspire future research directions in defect-engineered SSLBs.

Main Methods:

Literature review of defect engineering strategies in SSLBs.
Analysis of defect-induced changes in electronic structure and chemical bonding.
Examination of defect fabrication methods and their impact on ion diffusion and charge transport.

Main Results:

Defects create storage/active sites, enhance ion diffusion, and promote charge transport in electrodes.
Defects improve structural stability and ionic conductivity of solid-state electrolytes.
Defects significantly impact electronic structure, chemical bonds, and charge transport, determining electrochemical performance.

Conclusions:

Defect engineering is crucial for optimizing SSLBs by enhancing ionic and electronic conductivity and stability.
Understanding defect mechanisms is vital for designing high-performance SSLBs.
Further research into defect fabrication and application is needed for advanced SSLBs.