Origin and hysteresis of lithium compositional spatiodynamics within battery primary particles-Reference-Cited by-同舟云学术

Origin and hysteresis of lithium compositional spatiodynamics within battery primary particles

Published:2016-08-05 Issue:6299 Volume:353 Page:566-571
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Lim Jongwoo¹²,Li Yiyang¹,Alsem Daan Hein³,So Hongyun⁴,Lee Sang Chul¹,Bai Peng⁵,Cogswell Daniel A.⁵,Liu Xuzhao¹,Jin Norman¹,Yu Young-sang⁶,Salmon Norman J.³,Shapiro David A.⁶,Bazant Martin Z.¹⁵⁷⁸,Tyliszczak Tolek⁶,Chueh William C.¹²

Affiliation:

1. Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA.

2. Stanford Institute for Materials & Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.

3. Hummingbird Scientific, Lacey, WA 98516, USA.

4. Department of Aeronautics and Astronautics, Stanford University, Stanford, CA 94305, USA.

5. Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

6. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

7. Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

8. SUNCAT Interfacial Science and Catalysis, Stanford University, Stanford, CA 94305, USA.

Abstract

Watching batteries fail Rechargeable batteries lose capacity in part because of physical changes in the electrodes caused by electrochemical cycling. Lim et al. track the reaction dynamics of an electrode material, LiFePO 4 , by measuring the relative concentrations of Fe(II) and Fe(III) in it by means of high-resolution x-ray absorption spectrometry (see the Perspective by Schougaard). The exchange current density is then mapped for Li + insertion and removal. At fast cycling rates, solid solutions form as Li + is removed and inserted. However, at slow cycling rates, nanoscale phase separation occurs within battery particles, which eventually shortens battery life. Science , this issue p. 566 ; see also p. 543

Funder

U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Materials Sciences and Engineering

DOE Office of Basic Energy Sciences

NSF

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference48 articles.

1. Ultimate Limits to Intercalation Reactions for Lithium Batteries

2. Electrochemical tuning of vertically aligned MoS2 nanofilms and its application in improving hydrogen evolution reaction

3. Tunable near-infrared and visible-light transmittance in nanocrystal-in-glass composites