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Title: High conducting oxide--sulfide composite lithium superionic conductor

Abstract

A solid electrolyte for a lithium-sulfur battery includes particles of a lithium ion conducting oxide composition embedded within a lithium ion conducting sulfide composition. The lithium ion conducting oxide composition can be Li.sub.7La.sub.3Zr.sub.2O.sub.12 (LLZO). The lithium ion conducting sulfide composition can be .beta.-Li.sub.3PS.sub.4 (LPS). A lithium ion battery and a method of making a solid electrolyte for a lithium ion battery are also disclosed.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1339534
Patent Number(s):
9,548,512
Application Number:
14/104,803
Assignee:
UT-Battelle, LLC (Oak Ridge, TN) ORNL
DOE Contract Number:
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Dec 12
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Liang, Chengdu, Rangasamy, Ezhiylmurugan, Dudney, Nancy J., Keum, Jong Kahk, and Rondinone, Adam Justin. High conducting oxide--sulfide composite lithium superionic conductor. United States: N. p., 2017. Web.
Liang, Chengdu, Rangasamy, Ezhiylmurugan, Dudney, Nancy J., Keum, Jong Kahk, & Rondinone, Adam Justin. High conducting oxide--sulfide composite lithium superionic conductor. United States.
Liang, Chengdu, Rangasamy, Ezhiylmurugan, Dudney, Nancy J., Keum, Jong Kahk, and Rondinone, Adam Justin. Tue . "High conducting oxide--sulfide composite lithium superionic conductor". United States. doi:. https://www.osti.gov/servlets/purl/1339534.
@article{osti_1339534,
title = {High conducting oxide--sulfide composite lithium superionic conductor},
author = {Liang, Chengdu and Rangasamy, Ezhiylmurugan and Dudney, Nancy J. and Keum, Jong Kahk and Rondinone, Adam Justin},
abstractNote = {A solid electrolyte for a lithium-sulfur battery includes particles of a lithium ion conducting oxide composition embedded within a lithium ion conducting sulfide composition. The lithium ion conducting oxide composition can be Li.sub.7La.sub.3Zr.sub.2O.sub.12 (LLZO). The lithium ion conducting sulfide composition can be .beta.-Li.sub.3PS.sub.4 (LPS). A lithium ion battery and a method of making a solid electrolyte for a lithium ion battery are also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 17 00:00:00 EST 2017},
month = {Tue Jan 17 00:00:00 EST 2017}
}

Patent:

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  • We fabricated a hybrid superionic conductor using the space charge effect between the LLZO and LPS interfaces. This space-charge effect resulted in an improvement over the individual bulk conductivities of the two systems. Sample with higher weight fractions of LLZO are limited by the porosity and grain boundary resistance arising from non-sintered membranes. Furthermore, by combining the properties of LLZO and LPS, the high temperature sintering step has been avoided thus facilitating easier materials processing. The interfacial resistances were also measured to be minimal at ambient conditions. Our procedure thus opens a new avenue for improving the ionic conductivity andmore » electrochemical properties of existing solid state electrolytes. High frequency impedance analyses could aid in resolving the ionic conductivity contributions from the space charge layer in the higher conducting composites while mechanical property investigations could illustrate an improvement in the composite electrolyte in comparison with the crystalline LPS membranes.« less
  • A high temperature superconducting composite conductor is provided including a high temperature superconducting material surrounded by a noble metal layer, the high temperature superconducting composite conductor characterized as having a fill factor of greater than about 40. Additionally, the conductor can be further characterized as containing multiple cores of high temperature superconducting material surrounded by a noble metal layer, said multiple cores characterized as having substantially uniform geometry in the cross-sectional dimensions. Processes of forming such a high temperature superconducting composite conductor are also provided.
  • An activated electrode for a non-aqueous electrochemical cell is disclosed with a precursor of a lithium metal oxide with the formula xLi.sub.2MnO.sub.3.(1-x)LiMn.sub.2-yM.sub.yO.sub.4 for 0
  • An activated electrode for a non-aqueous electrochemical cell is disclosed with a precursor thereof a lithium metal oxide with the formula xLi.sub.2MnO.sub.3.(1-x)LiMn.sub.2-yM.sub.yO.sub.4 for 0.5