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Updated: Jun 8, 2026

Construction and Testing of Coin Cells of Lithium Ion Batteries

Construction and Testing of Coin Cells of Lithium Ion Batteries

Published on: August 2, 2012

Single-Crystal NCM-Enabled Multifunctional Separator Design for High-Performance Lithium-SPAN Batteries.

Ammaiyappan Anbunathan¹, Yi-Shiuan Wu¹, Jeng-Kuei Chang²

¹Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, Taiwan, ROC.

Small (Weinheim an Der Bergstrasse, Germany)

|March 2, 2026

Summary

This summary is machine-generated.

A novel trilayer separator enhances lithium-sulfur (Li-S) battery performance by improving ionic conductivity and stabilizing redox reactions. This breakthrough offers a sustainable path to high-energy, long-lasting Li-S batteries for a low-carbon future.

Keywords:

Li‐BTJ coating Li‐nafion lithium‐sulfur batteries (Li‐S)mixed‐conduction property single‐crystal NCM811(SC‐NCM)sulfurized polyacrylonitrile (SPAN)trilayer composite separator

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Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Published on: March 7, 2018

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Lithium-sulfur (Li-S) batteries offer high energy density but face challenges with sluggish redox kinetics and polysulfide shuttling in organo-polymer cathodes like sulfurized polyacrylonitrile (SPAN).
Limited active material utilization and poor cycle stability hinder the practical application of SPAN cathodes.

Purpose of the Study:

To develop a multifunctional trilayer mixed-conduction separator for enhancing the performance of Li-S batteries with SPAN cathodes.
To improve ionic selectivity, kinetic facilitation, and interfacial stabilization within the Li-S battery system.

Main Methods:

Fabrication of a trilayer separator comprising single-crystal NCM811 (SC-NCM), BP2000 carbon, and Li-Nafion binder, sandwiched between polypropylene (PP) layers (PP|SC-NCM|PP).
Integration of the separator into Li-S cells utilizing SPAN cathodes.
Characterization of electrochemical performance, including ionic conductivity, transference number, capacity retention, and rate capability.

Main Results:

The trilayer separator facilitated Li⁺-ion transport, enhanced ionic conductivity (1.82 × 10^-3 S·cm^-1), and improved Li⁺ transference number (0.60).
Cells demonstrated high initial discharge capacity (1779 mAh·g^-1 at 0.1C), excellent cycle stability (80% capacity retention after 500 cycles at 1C), and remarkable high-rate capability (771 mAh·g^-1 at 10C).
The separator suppressed thermal shrinkage and self-discharge, promoting stable solid-state redox reactions.

Conclusions:

The multifunctional trilayer mixed-conduction separator significantly boosts the performance of Li-S batteries with SPAN cathodes.
This scalable and recyclable separator design offers a sustainable route to high-performance energy storage.
The study sets a precedent for designing advanced mixed-conduction membranes for next-generation batteries.