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Updated: May 23, 2025

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

Interphase Design for Lithium-Metal Anodes.

Qidi Wang¹, Chenglong Zhao¹, Shuwei Wang²

¹Department of Radiation Science and Technology, Delft University of Technology, Delft 2629JB, The Netherlands.

Journal of the American Chemical Society

|March 7, 2025

Summary

This summary is machine-generated.

Designing stable electrode-electrolyte interphases is key for long-lasting lithium (Li)-metal batteries (LMBs). New insights show that avoiding reactions, not just dense Li deposits, is crucial for durable LMBs, even with common electrolytes.

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Area of Science:

Materials Science
Electrochemistry
Battery Technology

Background:

Electrode-electrolyte interphases critically influence lithium (Li)-metal battery (LMB) performance and lifespan.
Degradation of these interphases due to cycling leads to capacity loss and reduced battery life.

Purpose of the Study:

To comprehensively analyze the interplay between thermodynamic and kinetic properties of interphases on Li-metal anodes.
To provide insights for designing robust interphases to enhance LMB durability.

Main Methods:

Direct measurement of ion-transport kinetics across diverse electrolyte chemistries.
Analysis of Li deposit morphology and behavior during cycling.

Main Results:

High Li-ion mobility in interphases promotes dense Li deposits; sluggish transport leads to high-surface-area deposits and Li stripping.
Durable interphases prioritize avoiding Li-electrolyte reactions over solely achieving dense Li deposits.
Isolated Li deposits can reform and rejoin the anode mass in specific electrolyte systems, challenging conventional views.

Conclusions:

Interphase design principles for durable LMBs are redefined, emphasizing reaction avoidance.
High reversibility in LiNi$_{0.8}$Co$_{0.1}$Mn$_{0.1}$O$_{2}$||Cu cells is achievable with commercial carbonate electrolytes by optimizing interphase properties.