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Title: LiNi xFe yAl zO 2, a new cobalt-free layered cathode material for advanced Li-ion batteries

Abstract

Recently, rapid fluctuations in cobalt prices have created a worsening supply chain constraint that has become a serious cause of concern amidst global battery manufacturers. To address this challenge, we report herein a new class of cobalt-free, nickel-rich layered cathode material termed the NFA class with general formula LiNi xFe yAl zO 2 (x + y + z = 1). Using co-precipitation reaction in a continuous stirred tank reactor, we synthesized NFA(OH) 2 precursors with the constituent Ni, Fe and Al elements successfully incorporated. The obtained LiNFAO 2 cathode was characterized using X-Ray diffraction, Mössbauer spectroscopy and scanning electron microscopy. Electrochemical behavior was assessed using cyclic voltammetry, galvanostatic charge/discharge, electrochemical impedance spectroscopy and galvanostatic intermittent titration technique at various states of lithiation/delithiation. Electrochemical performance evaluations revealed that our cobalt-free material delivers high capacity of 190 mAh/g at 0.1C. Rate and cycling performance evaluations also indicated good rate capability and cycling stability with 88% capacity retention after 100 cycles at C/3. Using NFA cathodes, we also fabricated a 0.5Ah (C/3) cobalt-free Li-ion battery which demonstrated reasonable cycling stability with ~72% capacity retained after 200 cycles. Overall, our work demonstrates the immense potential of the cobalt-free NFA class cathodes as viable candidatesmore » towards development of next generation cost effective lithium ion batteries.« less

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [2];  [1];  [1]; ORCiD logo [1]; ORCiD logo [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office; USDOE Office of Science (SC)
OSTI Identifier:
1649295
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 471; Journal Issue: 1; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
Li-ion batteries; Cobalt-free; Layered cathodes; NFA; Electrochemistry; Electric vehicles

Citation Formats

Muralidharan, Nitin, Essehli, Rachid, Hermann, Raphael P., Parejiya, Anand Vasudevbhai, Amin, Ruhul, Bai, Yaocai, Du, Zhijia, and Belharouak, Ilias. LiNixFeyAlzO2, a new cobalt-free layered cathode material for advanced Li-ion batteries. United States: N. p., 2020. Web. doi:10.1016/j.jpowsour.2020.228389.
Muralidharan, Nitin, Essehli, Rachid, Hermann, Raphael P., Parejiya, Anand Vasudevbhai, Amin, Ruhul, Bai, Yaocai, Du, Zhijia, & Belharouak, Ilias. LiNixFeyAlzO2, a new cobalt-free layered cathode material for advanced Li-ion batteries. United States. doi:10.1016/j.jpowsour.2020.228389.
Muralidharan, Nitin, Essehli, Rachid, Hermann, Raphael P., Parejiya, Anand Vasudevbhai, Amin, Ruhul, Bai, Yaocai, Du, Zhijia, and Belharouak, Ilias. Wed . "LiNixFeyAlzO2, a new cobalt-free layered cathode material for advanced Li-ion batteries". United States. doi:10.1016/j.jpowsour.2020.228389.
@article{osti_1649295,
title = {LiNixFeyAlzO2, a new cobalt-free layered cathode material for advanced Li-ion batteries},
author = {Muralidharan, Nitin and Essehli, Rachid and Hermann, Raphael P. and Parejiya, Anand Vasudevbhai and Amin, Ruhul and Bai, Yaocai and Du, Zhijia and Belharouak, Ilias},
abstractNote = {Recently, rapid fluctuations in cobalt prices have created a worsening supply chain constraint that has become a serious cause of concern amidst global battery manufacturers. To address this challenge, we report herein a new class of cobalt-free, nickel-rich layered cathode material termed the NFA class with general formula LiNixFeyAlzO2 (x + y + z = 1). Using co-precipitation reaction in a continuous stirred tank reactor, we synthesized NFA(OH)2 precursors with the constituent Ni, Fe and Al elements successfully incorporated. The obtained LiNFAO2 cathode was characterized using X-Ray diffraction, Mössbauer spectroscopy and scanning electron microscopy. Electrochemical behavior was assessed using cyclic voltammetry, galvanostatic charge/discharge, electrochemical impedance spectroscopy and galvanostatic intermittent titration technique at various states of lithiation/delithiation. Electrochemical performance evaluations revealed that our cobalt-free material delivers high capacity of 190 mAh/g at 0.1C. Rate and cycling performance evaluations also indicated good rate capability and cycling stability with 88% capacity retention after 100 cycles at C/3. Using NFA cathodes, we also fabricated a 0.5Ah (C/3) cobalt-free Li-ion battery which demonstrated reasonable cycling stability with ~72% capacity retained after 200 cycles. Overall, our work demonstrates the immense potential of the cobalt-free NFA class cathodes as viable candidates towards development of next generation cost effective lithium ion batteries.},
doi = {10.1016/j.jpowsour.2020.228389},
journal = {Journal of Power Sources},
issn = {0378-7753},
number = 1,
volume = 471,
place = {United States},
year = {2020},
month = {7}
}

Journal Article:
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