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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
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A Quasi-Solid-State Polymer Lithium-Metal Battery with Minimal Excess Lithium, Ultrathin Separator, and High-Mass
Gerrit Homann1, Qing Wang1, Sufu Liu1
1Empa-Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland.
ACS Applied Energy Materials
|November 15, 2024
Summary
Researchers developed a novel solid-state polymer electrolyte for high-energy lithium metal batteries. This breakthrough utilizes commercially available components, paving the way for scalable, next-generation battery technology.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Solid-state batteries (SSBs) with lithium metal anodes offer higher energy density than conventional lithium-ion batteries.
- Commercialization of SSBs is hindered by manufacturing challenges and component integration.
Purpose of the Study:
- To develop a scalable solid-state polymer electrolyte for lithium metal batteries.
- To demonstrate a functional solid-state battery using industrially available components.
Main Methods:
- A polymer electrolyte was synthesized using poly(DMADAFSI) and LiFSI in Pyr13FSI plasticizer.
- The electrolyte was infiltrated into commercial NMC811 cathodes and polypropylene separators.
- A complete solid-state lithium-metal cell was assembled with commercial components.
Main Results:
- The polymer electrolyte was successfully infiltrated and solidified in cathode and separator pores.
- The assembled solid-state battery demonstrated cycling at full nominal capacity.
- The battery utilized exclusively commercially available components at an industrial scale.
Conclusions:
- This work presents a critical advancement towards the commercialization of competitive all-solid-state battery technology.
- The use of readily available industrial components addresses key challenges in SSB manufacturing.
- The developed solid-state polymer battery shows promise for automotive and aviation applications.
