Designing 3D nanostructured garnet frameworks for enhancing ionic conductivity and flexibility in composite polymer electrolytes for lithium batteries

By Jiwoong Bae, Yutao Li, Fei Zhao, Xingyi Zhou, Yu Ding, Guihua Yu. Energy Storage Materials, 2018

229 citations recorded by the source corpus.

Abstract Solid-state electrolytes provide excellent electrochemical stability, mechanical strength and safety as compared to conventional liquid electrolytes for lithium ion batteries. Recent developments of polymer electrolytes mixed with nanofillers have enhanced ionic conductivity and stability owing to the interaction between nanoscale fillers and polymer matrix/lithium salt. However, the agglomeration of the nanofillers limits the concentration of the filler, thereby preventing the composite electrolyte from further improving the conductivity and stability. In this study, we first report three-dimensional (3D) nanostructured garnet framework as 3D nanofillers for composite polymer electrolyte. The well-percolated structure of garnet framework enables a high weight ratio of 62 wt% in composite electrolyte and improves conductivity to 8.5 × 10−5 S cm−1 at 25 °C with ~ 10−3 S cm−1 at 60 °C. The excellent conductivity and high garnet content of composite electrolyte also lead to enhanced electrochemical and thermal stability as well as interfacial stability with lithium metal. Our 3D interconnected garnet framework design represents a useful strategy for developing high-performance composite polymer electrolytes for next-generation lithium batteries.

Subfields: Automotive Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/5f84d65b1b94febb565d19ac710970d039ddd765

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Automotive Engineering

1. G. Cui
2. Guihua Yu

In Electrical and Electronic Engineering

1. Jiwoong Bae
2. Fei Zhao
3. G. Cui
4. Youhong Guo
5. Guihua Yu

Citations in the corpus

• Functional Hydrogels for Next-Generation Batteries and Supercapacitors (2019, background): “3D porous metal-oxide or ceramic frameworks can be derived via heat treatment of hydrogels in an oxidizing atmosphere [34,35].”
• Reasonable Design of High-Energy-Density Solid-State Lithium-Metal Batteries (2020, background): “Both thermal and electrochemical stability of the triple-phase percolated composite are also superior to those of the single- or double-phase percolated composites.(19) Moreover, with this 3D filler, the Li transference number (t) of SPE can be enhanced significantly, for example, from 0.”