A 3D Nanostructured Hydrogel-Framework-Derived High-Performance Composite Polymer Lithium-Ion Electrolyte

Jiwoong Bae; Yutao Li; Jun Zhang; Xingyi Zhou; Fei Zhao; Ye Shi; John B. Goodenough; Guihua Yu

doi:10.1002/anie.201710841

A 3D Nanostructured Hydrogel-Framework-Derived High-Performance Composite Polymer Lithium-Ion Electrolyte

Jiwoong Bae
, Yutao Li
, Jun Zhang
, Xingyi Zhou
, Fei Zhao
, Ye Shi
, John B. Goodenough
, Guihua Yu^*

^*Corresponding author for this work

University of Texas at Austin

Research output: Contribution to journal › Article › peer-review

612 Citations (Scopus)

Abstract

Solid-state electrolytes have emerged as a promising alternative to existing liquid electrolytes for next generation Li-ion batteries for better safety and stability. Of various types of solid electrolytes, composite polymer electrolytes exhibit acceptable Li-ion conductivity due to the interaction between nanofillers and polymer. Nevertheless, the agglomeration of nanofillers at high concentration has been a major obstacle for improving Li-ion conductivity. In this study, we designed a three-dimensional (3D) nanostructured hydrogel-derived Li_0.35La_0.55TiO₃ (LLTO) framework, which was used as a 3D nanofiller for high-performance composite polymer Li-ion electrolyte. The systematic percolation study revealed that the pre-percolating structure of LLTO framework improved Li-ion conductivity to 8.8×10⁻⁵ S cm⁻¹ at room temperature.

Original language	English
Pages (from-to)	2096-2100
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	57
Issue number	8
DOIs	https://doi.org/10.1002/anie.201710841
Publication status	Published - 19 Feb 2018
Externally published	Yes

Keywords

composite electrolytes
hydrogels
lithium-ion conductors
percolation
solid electrolytes

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10.1002/anie.201710841

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title = "A 3D Nanostructured Hydrogel-Framework-Derived High-Performance Composite Polymer Lithium-Ion Electrolyte",

abstract = "Solid-state electrolytes have emerged as a promising alternative to existing liquid electrolytes for next generation Li-ion batteries for better safety and stability. Of various types of solid electrolytes, composite polymer electrolytes exhibit acceptable Li-ion conductivity due to the interaction between nanofillers and polymer. Nevertheless, the agglomeration of nanofillers at high concentration has been a major obstacle for improving Li-ion conductivity. In this study, we designed a three-dimensional (3D) nanostructured hydrogel-derived Li0.35La0.55TiO3 (LLTO) framework, which was used as a 3D nanofiller for high-performance composite polymer Li-ion electrolyte. The systematic percolation study revealed that the pre-percolating structure of LLTO framework improved Li-ion conductivity to 8.8×10−5 S cm−1 at room temperature.",

keywords = "composite electrolytes, hydrogels, lithium-ion conductors, percolation, solid electrolytes",

author = "Jiwoong Bae and Yutao Li and Jun Zhang and Xingyi Zhou and Fei Zhao and Ye Shi and Goodenough, \{John B.\} and Guihua Yu",

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doi = "10.1002/anie.201710841",

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journal = "Angewandte Chemie - International Edition",

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AU - Bae, Jiwoong

AU - Li, Yutao

AU - Zhang, Jun

AU - Zhou, Xingyi

AU - Zhao, Fei

AU - Shi, Ye

AU - Goodenough, John B.

AU - Yu, Guihua

PY - 2018/2/19

Y1 - 2018/2/19

N2 - Solid-state electrolytes have emerged as a promising alternative to existing liquid electrolytes for next generation Li-ion batteries for better safety and stability. Of various types of solid electrolytes, composite polymer electrolytes exhibit acceptable Li-ion conductivity due to the interaction between nanofillers and polymer. Nevertheless, the agglomeration of nanofillers at high concentration has been a major obstacle for improving Li-ion conductivity. In this study, we designed a three-dimensional (3D) nanostructured hydrogel-derived Li0.35La0.55TiO3 (LLTO) framework, which was used as a 3D nanofiller for high-performance composite polymer Li-ion electrolyte. The systematic percolation study revealed that the pre-percolating structure of LLTO framework improved Li-ion conductivity to 8.8×10−5 S cm−1 at room temperature.

AB - Solid-state electrolytes have emerged as a promising alternative to existing liquid electrolytes for next generation Li-ion batteries for better safety and stability. Of various types of solid electrolytes, composite polymer electrolytes exhibit acceptable Li-ion conductivity due to the interaction between nanofillers and polymer. Nevertheless, the agglomeration of nanofillers at high concentration has been a major obstacle for improving Li-ion conductivity. In this study, we designed a three-dimensional (3D) nanostructured hydrogel-derived Li0.35La0.55TiO3 (LLTO) framework, which was used as a 3D nanofiller for high-performance composite polymer Li-ion electrolyte. The systematic percolation study revealed that the pre-percolating structure of LLTO framework improved Li-ion conductivity to 8.8×10−5 S cm−1 at room temperature.

KW - composite electrolytes

KW - hydrogels

KW - lithium-ion conductors

KW - percolation

KW - solid electrolytes

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DO - 10.1002/anie.201710841

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VL - 57

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JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 8

ER -

A 3D Nanostructured Hydrogel-Framework-Derived High-Performance Composite Polymer Lithium-Ion Electrolyte

Abstract

Keywords

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