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Updated: Jun 3, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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Published on: August 12, 2013

Long Cycle Life All-Solid-State Batteries Enabled by Medium Nanosized Catholytes.

Jingyu Chen¹, Chenji Hu¹, Ruilong Liu¹

¹School of Chemistry and Chemical Engineering, in situ Center for Physical Sciences, Shanghai Electrochemical Energy Device Research Center (SEED) and Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.

The Journal of Physical Chemistry Letters

|January 13, 2025

Summary

Optimizing the size of lithium thiophosphate (Li$_{6}$PS$_{5}$Cl) particles in solid-state battery cathodes improves ionic conductivity and material use. This leads to significantly longer cycle life for all-solid-state batteries.

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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

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Published on: November 11, 2013

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Poor interfacial contact in solid-state cathodes hinders high-performance all-solid-state batteries (ASSBs).
Developing ASSBs with high specific energy and long cycle life requires addressing cathode interfacial challenges.

Purpose of the Study:

To investigate the impact of catholyte particle size on ASSB electrochemical performance.
To optimize the size of Li$_{6}$PS$_{5}$Cl (LPSCl) catholyte for enhanced ionic conduction and active material utilization.

Main Methods:

Tuning the size of Li$_{6}$PS$_{5}$Cl catholyte particles within the cathode.
Electrochemical performance testing of ASSBs with varying catholyte sizes.
Analysis of ionic transport and interfacial properties.

Main Results:

Medium nanosized LPSCl catholyte (∼500 nm) established an efficient ionic transport network.
Optimized catholyte size improved active material utilization and alleviated electrochemo-mechanical stress.
ASSBs with ∼500 nm LPSCl catholyte achieved 2400 cycles at 15C with minimal capacity decay.

Conclusions:

Catholyte particle size is a critical parameter for optimizing ASSB performance.
Tailoring LPSCl catholyte size enhances ionic conductivity and interfacial stability.
This optimization is crucial for advancing the practical application of ASSB technology.