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Related Experiment Video

Updated: Aug 6, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

An Ultra-Stable Electrode-Solid Electrolyte Composite for High-Performance All-Solid-State Li-Ion Batteries.

Yuqin Huang¹, Panyu Gao¹, Tengfei Zhang²

¹Department of Materials Science, Fudan University, Shanghai, 200433, China.

Small (Weinheim an Der Bergstrasse, Germany)

|March 21, 2023

Summary

This summary is machine-generated.

Researchers developed a novel composite for all-solid-state lithium-ion batteries (ASSLIBs). This material enhances ionic and electronic conductivity, significantly improving battery performance and stability for long-term cycling.

Keywords:

borohydrides interfaces ionic conductivity metal hydrides solid-state Li ion batteries

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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Low ionic and electronic conductivity at interfaces hinders all-solid-state lithium-ion battery (ASSLIB) performance.
High-capacity anodes in ASSLIBs face challenges with long-term cycling stability.

Purpose of the Study:

To fabricate an ultra-stable electrode-solid electrolyte composite for high-performance ASSLIBs.
To enhance ionic and electronic conductivity at electrode-electrolyte interfaces.

Main Methods:

Homogeneous coverage of ultrathin Mg(BH4)2 layers on MgH2 nanoparticles distributed on graphene.
In-situ formation of LiBH4 and Li2B6 during discharge for improved Li-ion conductivity.
Utilizing graphene and Li2B6 as stabilizing frameworks to mitigate volume changes.

Main Results:

Achieved two orders of magnitude higher Li-ion conductivity compared to composites without Mg(BH4)2 layers.
Demonstrated alleviation of volume change in MgH2 nanoparticles.
Formed uniform, stable interfaces with high ionic and electronic conductivity.

Conclusions:

The developed composite enables ultrahigh specific capacity (800 mAh g-1) for MgH2 at 2 A g-1 after 350 cycles.
The strategy effectively addresses interfacial challenges in ASSLIBs.
This approach offers a promising pathway for advanced solid-state batteries.