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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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Published on: August 12, 2013

Monolithic Titanium Alkoxide Networks for Lithium-Ion Conductive All-Solid-State Electrolytes.

Yue Zhang¹, Ying Liu¹, Wenda Bao¹

¹School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.

|April 25, 2023

Summary

Reticular chemistry enables the modular design of solid-state electrolytes (SSEs). This study introduces glassy metal-organic frameworks (MOFs) for liquid-free SSEs with tunable properties and high ionic conductivity.

Keywords:

Coordinative networks Lithium ionic conductor MOF Solid state electrolyte Titanium-oxo cluster

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Published on: March 7, 2018

Area of Science:

Materials Science
Electrochemistry
Chemistry

Background:

Reticular chemistry offers modular design for solid-state electrolytes (SSEs).
Crystalline metal-organic frameworks (MOFs) often necessitate liquid electrolytes for effective interfacial contact.
Glassy MOFs present liquid processability and uniform ion conduction, ideal for liquid-free SSEs.

Purpose of the Study:

To develop a generalizable strategy for the modular design of noncrystalline SSEs using glassy MOFs.
To demonstrate this strategy by creating titanium alkoxide networks (TANs).

Main Methods:

Bottom-up synthesis of glassy MOFs.
Linking polyethylene glycol (PEG) struts with nanosized titanium-oxo clusters.
Incorporating PEG linkers of varying molecular weights.

Main Results:

Successful creation of titanium alkoxide networks (TANs) via modular design.
Optimized PEG linker flexibility for high ionic conductivity.
Controlled cross-linking in the reticular network for mechanical strength.

Conclusions:

Reticular design is powerful for creating noncrystalline molecular framework materials for SSEs.
Glassy MOFs offer a promising route to liquid-free SSEs with tunable properties.