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Updated: Oct 9, 2025

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

A Low Temperature Soldered All Ceramic Lithium Battery.

Wuliang Feng¹, Peng Yang¹, Xiaoli Dong¹

¹Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China.

ACS Applied Materials & Interfaces

|December 21, 2021

Summary

Lithium-rich antiperovskites (LiRAPs) act as sintering aids in oxide-based all ceramic lithium batteries (ACLBs). This innovation lowers sintering temperatures, enhancing cathode/electrolyte contact and improving battery safety and stability.

Keywords:

all ceramic lithium battery antiperovskites interfacial resistance lithium anode solder

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Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway

Published on: March 7, 2022

Area of Science:

Materials Science
Electrochemistry
Solid-State Batteries

Background:

Oxide-based all ceramic lithium batteries (ACLBs) offer enhanced safety but require high-temperature sintering.
High sintering temperatures increase energy consumption and lead to undesirable interfacial phases.
Fabricating solid-state electrolytes (SSEs) and ensuring good cathode/SSE contact are critical challenges.

Purpose of the Study:

To develop a low-temperature sintering method for ACLBs.
To improve the cathode/SSE interface in ACLBs.
To enhance the safety and cycling stability of ACLBs.

Main Methods:

In situ coating of lithium-rich antiperovskites (LiRAPs) as sintering aids.
Soldering LiCoO2 (LCO) active material with Li1.3Al0.3Ti1.7(PO4)3 (LATP) solid electrolyte using LiRAPs.
Low-temperature sintering at 290 °C.

Main Results:

Sintering temperature reduced from >600 °C to 290 °C.
Cathode/electrolyte interfacial resistance decreased from 15288 to 817 Ω/cm².
Improved cycling stability due to LiRAPs' ductility mitigating interfacial strain.

Conclusions:

LiRAPs effectively solder LCO and LATP at low temperatures.
The developed method enhances ACLB interfacial properties and performance.
This approach facilitates the industrialization of safer, high-performance ACLBs.