Hydrothermal synthesis of Co-free NMA cathodes for high performance Li-ion batteries

Rachid Essehli; Anand Parejiya; Nitin Muralidharan; Charl J. Jafta; Ruhul Amin; Marm B. Dixit; Yaocai Bai; Jue Liu; Ilias Belharouak

doi:10.1016/j.jpowsour.2022.231938

Hydrothermal synthesis of Co-free NMA cathodes for high performance Li-ion batteries

Rachid Essehli, Anand Parejiya, Nitin Muralidharan, Charl J. Jafta, Ruhul Amin, Marm B. Dixit, Yaocai Bai, Jue Liu, Ilias Belharouak

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Scalable and sustainable production of high voltage cathodes is required to meet the increasing demands for Li-ion batteries. Additionally, the anticipated scarcity of critical materials like cobalt necessitates demonstration of Co-free alternatives that can match the performance metrics of conventional cathodes. Herein, a hydrothermal synthesis route for production of a new class of high-capacity, cobalt-free cathode material, LiNi_0.9Mn_0.05Al_0.05O₂ (NMA9055) for next-generation Li-ion batteries is reported. The synthesized cathode material shows high crystallinity and purity with monodispersed spherical morphology. Extensive electrochemical, structural, and post-mortem characterization of this novel NMA material is carried out. NMA-Li half cells show an initial discharge capacity of 200 mAh/g with a 96% capacity retention over 100 cycles when cycled between 3.0 and 4.4 V. On the other hand, NMA full cells with Li₄Ti₅O₁₂ (LTO) electrodes as the anode, show an initial discharge capacity of 186 mAh/g with 81% capacity retention over 200 cycles. Post-mortem structural and morphological characterization show that the NMA morphology and crystal structure do not degrade significantly over 200 charge/discharge cycles. This new class of cobalt free cathode material containing nickel, manganese and aluminum synthesized by an ammonia-free synthesis route is expected to provide a facile solution towards sustainable cathode production.

Original language	English
Article number	231938
Journal	Journal of Power Sources
Volume	545
DOIs	https://doi.org/10.1016/j.jpowsour.2022.231938
State	Published - Oct 15 2022

Funding

This research at Oak Ridge National Laboratory, managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE), was sponsored by the Energy Efficiency and Renewable Energy ( EERE ), Vehicle Technologies Office ( VTO ), (Program manager: Peter Faguy, and Office Director: David Howell). Characterization was conducted at the Center for Nanophase Materials Sciences, a DOE Office of Science User Facility. M.B.D. was also supported by Alvin M. Weinberg Fellowship at the Oak Ridge National Laboratory. This research used resources of the Advanced Photon Source; a US Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under contract no. DE-AC02-06CH11357. This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).

Funders	Funder number
U.S. Department of Energy
Office of Science
Office of Energy Efficiency and Renewable Energy
Argonne National Laboratory	DE-AC02-06CH11357
Oak Ridge National Laboratory
UT-Battelle	DE-AC05-00OR22725

Keywords

Ammonia free
Cathode
Cobalt free
Hydrothermal synthesis
Li-ion batteries

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2022.231938

Cite this

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title = "Hydrothermal synthesis of Co-free NMA cathodes for high performance Li-ion batteries",

abstract = "Scalable and sustainable production of high voltage cathodes is required to meet the increasing demands for Li-ion batteries. Additionally, the anticipated scarcity of critical materials like cobalt necessitates demonstration of Co-free alternatives that can match the performance metrics of conventional cathodes. Herein, a hydrothermal synthesis route for production of a new class of high-capacity, cobalt-free cathode material, LiNi0.9Mn0.05Al0.05O2 (NMA9055) for next-generation Li-ion batteries is reported. The synthesized cathode material shows high crystallinity and purity with monodispersed spherical morphology. Extensive electrochemical, structural, and post-mortem characterization of this novel NMA material is carried out. NMA-Li half cells show an initial discharge capacity of 200 mAh/g with a 96% capacity retention over 100 cycles when cycled between 3.0 and 4.4 V. On the other hand, NMA full cells with Li4Ti5O12 (LTO) electrodes as the anode, show an initial discharge capacity of 186 mAh/g with 81% capacity retention over 200 cycles. Post-mortem structural and morphological characterization show that the NMA morphology and crystal structure do not degrade significantly over 200 charge/discharge cycles. This new class of cobalt free cathode material containing nickel, manganese and aluminum synthesized by an ammonia-free synthesis route is expected to provide a facile solution towards sustainable cathode production.",

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author = "Rachid Essehli and Anand Parejiya and Nitin Muralidharan and Jafta, {Charl J.} and Ruhul Amin and Dixit, {Marm B.} and Yaocai Bai and Jue Liu and Ilias Belharouak",

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AU - Amin, Ruhul

AU - Dixit, Marm B.

AU - Bai, Yaocai

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AU - Belharouak, Ilias

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AB - Scalable and sustainable production of high voltage cathodes is required to meet the increasing demands for Li-ion batteries. Additionally, the anticipated scarcity of critical materials like cobalt necessitates demonstration of Co-free alternatives that can match the performance metrics of conventional cathodes. Herein, a hydrothermal synthesis route for production of a new class of high-capacity, cobalt-free cathode material, LiNi0.9Mn0.05Al0.05O2 (NMA9055) for next-generation Li-ion batteries is reported. The synthesized cathode material shows high crystallinity and purity with monodispersed spherical morphology. Extensive electrochemical, structural, and post-mortem characterization of this novel NMA material is carried out. NMA-Li half cells show an initial discharge capacity of 200 mAh/g with a 96% capacity retention over 100 cycles when cycled between 3.0 and 4.4 V. On the other hand, NMA full cells with Li4Ti5O12 (LTO) electrodes as the anode, show an initial discharge capacity of 186 mAh/g with 81% capacity retention over 200 cycles. Post-mortem structural and morphological characterization show that the NMA morphology and crystal structure do not degrade significantly over 200 charge/discharge cycles. This new class of cobalt free cathode material containing nickel, manganese and aluminum synthesized by an ammonia-free synthesis route is expected to provide a facile solution towards sustainable cathode production.

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Hydrothermal synthesis of Co-free NMA cathodes for high performance Li-ion batteries

Abstract

Funding

Keywords

UN SDGs

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