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Title: Rock-Salt Growth-Induced (003) Cracking in a Layered Positive Electrode for Li-Ion Batteries

Abstract

For the first time, the (003) cracking is observed and determined to be the major cracking mechanism for the primary particles of Ni-rich layered dioxides as the positive electrode for Li-ion batteries. Using transmission electron microscopy techniques, here we show that the propagation and fracturing of platelet-like rock-salt phase along the (003) plane of the layered oxide are the leading cause for the cracking of primary particles. The fracturing of the rock-salt platelet is induced by the stress discontinuity between the parent layered oxide and the rock-salt phase. The high nickel content is considered to be the key factor for the formation of the rock-salt platelet and thus the (003) cracking. The (003)-type cracking can be a major factor for the structural degradation and associated capacity fade of the layered positive electrode.

Authors:
ORCiD logo [1];  [2];  [3]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [1]
  1. Materials Science and Engineering Program &, Department of Mechanical Engineering, State University of New York, Binghamton, New York 13902, United States; NorthEast Center for Chemical Energy Storage, State University of New York, Binghamton, New York 13902, United States
  2. NorthEast Center for Chemical Energy Storage, State University of New York, Binghamton, New York 13902, United States
  3. Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1414551
Report Number(s):
PNNL-SA-130267
Journal ID: ISSN 2380-8195; 49321; KP1704020
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: ACS Energy Letters; Journal Volume: 2; Journal Issue: 11
Country of Publication:
United States
Language:
English
Subject:
Environmental Molecular Sciences Laboratory

Citation Formats

Zhang, Hanlei, Omenya, Fredrick, Yan, Pengfei, Luo, Langli, Whittingham, M. Stanley, Wang, Chongmin, and Zhou, Guangwen. Rock-Salt Growth-Induced (003) Cracking in a Layered Positive Electrode for Li-Ion Batteries. United States: N. p., 2017. Web. doi:10.1021/acsenergylett.7b00907.
Zhang, Hanlei, Omenya, Fredrick, Yan, Pengfei, Luo, Langli, Whittingham, M. Stanley, Wang, Chongmin, & Zhou, Guangwen. Rock-Salt Growth-Induced (003) Cracking in a Layered Positive Electrode for Li-Ion Batteries. United States. doi:10.1021/acsenergylett.7b00907.
Zhang, Hanlei, Omenya, Fredrick, Yan, Pengfei, Luo, Langli, Whittingham, M. Stanley, Wang, Chongmin, and Zhou, Guangwen. Fri . "Rock-Salt Growth-Induced (003) Cracking in a Layered Positive Electrode for Li-Ion Batteries". United States. doi:10.1021/acsenergylett.7b00907.
@article{osti_1414551,
title = {Rock-Salt Growth-Induced (003) Cracking in a Layered Positive Electrode for Li-Ion Batteries},
author = {Zhang, Hanlei and Omenya, Fredrick and Yan, Pengfei and Luo, Langli and Whittingham, M. Stanley and Wang, Chongmin and Zhou, Guangwen},
abstractNote = {For the first time, the (003) cracking is observed and determined to be the major cracking mechanism for the primary particles of Ni-rich layered dioxides as the positive electrode for Li-ion batteries. Using transmission electron microscopy techniques, here we show that the propagation and fracturing of platelet-like rock-salt phase along the (003) plane of the layered oxide are the leading cause for the cracking of primary particles. The fracturing of the rock-salt platelet is induced by the stress discontinuity between the parent layered oxide and the rock-salt phase. The high nickel content is considered to be the key factor for the formation of the rock-salt platelet and thus the (003) cracking. The (003)-type cracking can be a major factor for the structural degradation and associated capacity fade of the layered positive electrode.},
doi = {10.1021/acsenergylett.7b00907},
journal = {ACS Energy Letters},
number = 11,
volume = 2,
place = {United States},
year = {Fri Oct 20 00:00:00 EDT 2017},
month = {Fri Oct 20 00:00:00 EDT 2017}
}