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Title: Electrochemical Properties of Electrodes Derived from NaTi 3O 6OH·2H 2O in Sodium and Lithium Cells

Materials derived from the layered compound NaTi 3O 6OH·2H 2O, also known as “sodium nonatitanate” or NNT, have recently been found to undergo reversible sodium or lithium intercalation processes at very low potentials. While practical discharge capacities in lithium cells can be above 200 mAh/g, making them of interest for high-energy applications, the presence of mobile sodium in the materials complicates the cycling behavior. A simple ion-exchange process prior to incorporation in electrochemical cells removes all sodium ions, producing the lithiated form of the material. The lithiated material (LNT) performs similarly to NNT in lithium cells, although coulombic inefficiencies are somewhat higher. A comparison is made between the behavior of NNT in sodium cells and that of NNT and the lithiated analog in lithium cells.
Authors:
 [1] ;  [1] ;  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Energy Technologies Division
Publication Date:
Report Number(s):
LBNL-181397
Journal ID: ISSN 0013-4651; ir:181397
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 162; Journal Issue: 1; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC); LBNL Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1469152

Seshadri, Dhruv, Shirpour, Mona, and Doeff, Marca. Electrochemical Properties of Electrodes Derived from NaTi3O6OH·2H2O in Sodium and Lithium Cells. United States: N. p., Web. doi:10.1149/2.0391501jes.
Seshadri, Dhruv, Shirpour, Mona, & Doeff, Marca. Electrochemical Properties of Electrodes Derived from NaTi3O6OH·2H2O in Sodium and Lithium Cells. United States. doi:10.1149/2.0391501jes.
Seshadri, Dhruv, Shirpour, Mona, and Doeff, Marca. 2014. "Electrochemical Properties of Electrodes Derived from NaTi3O6OH·2H2O in Sodium and Lithium Cells". United States. doi:10.1149/2.0391501jes. https://www.osti.gov/servlets/purl/1469152.
@article{osti_1469152,
title = {Electrochemical Properties of Electrodes Derived from NaTi3O6OH·2H2O in Sodium and Lithium Cells},
author = {Seshadri, Dhruv and Shirpour, Mona and Doeff, Marca},
abstractNote = {Materials derived from the layered compound NaTi3O6OH·2H2O, also known as “sodium nonatitanate” or NNT, have recently been found to undergo reversible sodium or lithium intercalation processes at very low potentials. While practical discharge capacities in lithium cells can be above 200 mAh/g, making them of interest for high-energy applications, the presence of mobile sodium in the materials complicates the cycling behavior. A simple ion-exchange process prior to incorporation in electrochemical cells removes all sodium ions, producing the lithiated form of the material. The lithiated material (LNT) performs similarly to NNT in lithium cells, although coulombic inefficiencies are somewhat higher. A comparison is made between the behavior of NNT in sodium cells and that of NNT and the lithiated analog in lithium cells.},
doi = {10.1149/2.0391501jes},
journal = {Journal of the Electrochemical Society},
number = 1,
volume = 162,
place = {United States},
year = {2014},
month = {11}
}