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Title: Jahn–Teller Assisted Na Diffusion for High Performance Na Ion Batteries

Abstract

Na energy storage technology is strategically attractive for large scale applications such as grid energy storage. Here, we show in this paper that there is a clear relation between the Jahn$-$Teller activity of a transition metal ion at the end of charge and the mobility of Na in a cathode material. This is particularly important as mobility at the end of charge limits the capacity of current materials. Consequently, by using this classical piece of physics in the battery world, it is possible to create higher capacity Na-cathode materials. Even more exciting is that the ideal element to impart this effect on cathodes is Fe, which is the least expensive of the transition metal oxides and can therefore enable low cost cathode materials.

Authors:
 [1];  [2];  [3];  [2];  [4];  [5]
  1. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
  2. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
  3. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
  4. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States; Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
  5. Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States; Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1347026
DOE Contract Number:  
AC02-05CH11231; AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Chemistry of Materials; Journal Volume: 28; Journal Issue: 18
Country of Publication:
United States
Language:
ENGLISH

Citation Formats

Li, Xin, Wang, Yan, Wu, Di, Liu, Lei, Bo, Shou-Hang, and Ceder, Gerbrand. Jahn–Teller Assisted Na Diffusion for High Performance Na Ion Batteries. United States: N. p., 2016. Web. doi:10.1021/acs.chemmater.6b02440.
Li, Xin, Wang, Yan, Wu, Di, Liu, Lei, Bo, Shou-Hang, & Ceder, Gerbrand. Jahn–Teller Assisted Na Diffusion for High Performance Na Ion Batteries. United States. doi:10.1021/acs.chemmater.6b02440.
Li, Xin, Wang, Yan, Wu, Di, Liu, Lei, Bo, Shou-Hang, and Ceder, Gerbrand. Tue . "Jahn–Teller Assisted Na Diffusion for High Performance Na Ion Batteries". United States. doi:10.1021/acs.chemmater.6b02440.
@article{osti_1347026,
title = {Jahn–Teller Assisted Na Diffusion for High Performance Na Ion Batteries},
author = {Li, Xin and Wang, Yan and Wu, Di and Liu, Lei and Bo, Shou-Hang and Ceder, Gerbrand},
abstractNote = {Na energy storage technology is strategically attractive for large scale applications such as grid energy storage. Here, we show in this paper that there is a clear relation between the Jahn$-$Teller activity of a transition metal ion at the end of charge and the mobility of Na in a cathode material. This is particularly important as mobility at the end of charge limits the capacity of current materials. Consequently, by using this classical piece of physics in the battery world, it is possible to create higher capacity Na-cathode materials. Even more exciting is that the ideal element to impart this effect on cathodes is Fe, which is the least expensive of the transition metal oxides and can therefore enable low cost cathode materials.},
doi = {10.1021/acs.chemmater.6b02440},
journal = {Chemistry of Materials},
number = 18,
volume = 28,
place = {United States},
year = {Tue Aug 30 00:00:00 EDT 2016},
month = {Tue Aug 30 00:00:00 EDT 2016}
}