Synthetic Control of Kinetic Reaction Pathway and Cationic Ordering in High-Ni Layered Oxide Cathodes

Dawei Wang; Ronghui Kou; Yang Ren; Cheng-Jun Sun; Hu Zhao; Ming-Jian Zhang; Yan Li; Ashifia Huq; J. Y. Peter Ko; Feng Pan; Yang-Kook Sun; Yong Yang; Khalil Amine; Jianming Bai; Zonghai Chen; Feng Wang

doi:10.1002/adma.201606715

Synthetic Control of Kinetic Reaction Pathway and Cationic Ordering in High-Ni Layered Oxide Cathodes

Dawei Wang
, Ronghui Kou
, Yang Ren
, Cheng-Jun Sun
, Hu Zhao
, Ming-Jian Zhang
, Yan Li
, Ashifia Huq
, J. Y. Peter Ko
, Feng Pan
, Yang-Kook Sun
, Yong Yang^*
, Khalil Amine
, Jianming Bai
, Zonghai Chen
, Feng Wang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

170 Citations (Scopus)

Abstract

Nickel-rich layered transition metal oxides, LiNi₁₋ _x(MnCo)_xO₂ (1−x ≥ 0.5), are appealing candidates for cathodes in next-generation lithium-ion batteries (LIBs) for electric vehicles and other large-scale applications, due to their high capacity and low cost. However, synthetic control of the structural ordering in such a complex quaternary system has been a great challenge, especially in the presence of high Ni content. Herein, synthesis reactions for preparing layered LiNi_0.7Mn_0.15Co_0.15O₂ (NMC71515) by solid-state methods are investigated through a combination of time-resolved in situ high-energy X-ray diffraction and absorption spectroscopy measurements. The real-time observation reveals a strong temperature dependence of the kinetics of cationic ordering in NMC71515 as a result of thermal-driven oxidation of transition metals and lithium/oxygen loss that concomitantly occur during heat treatment. Through synthetic control of the kinetic reaction pathway, a layered NMC71515 with low cationic disordering and a high reversible capacity is prepared in air. The findings may help to pave the way for designing high-Ni layered oxide cathodes for LIBs.

Original language	English
Article number	1606715
Journal	Advanced Materials
Volume	29
Issue number	39
DOIs	https://doi.org/10.1002/adma.201606715
Publication status	Published - 18 Oct 2017
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

cationic ordering
high-energy X-ray diffraction
layered oxide cathodes
lithium-ion batteries
X-ray absorption spectroscopy

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10.1002/adma.201606715

https://onlinelibrary.wiley.com/doi/am-pdf/10.1002/adma.201606715

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@article{2223dc359b284719b3f11bc039c64587,

title = "Synthetic Control of Kinetic Reaction Pathway and Cationic Ordering in High-Ni Layered Oxide Cathodes",

abstract = "Nickel-rich layered transition metal oxides, LiNi1− x(MnCo)xO2 (1−x ≥ 0.5), are appealing candidates for cathodes in next-generation lithium-ion batteries (LIBs) for electric vehicles and other large-scale applications, due to their high capacity and low cost. However, synthetic control of the structural ordering in such a complex quaternary system has been a great challenge, especially in the presence of high Ni content. Herein, synthesis reactions for preparing layered LiNi0.7Mn0.15Co0.15O2 (NMC71515) by solid-state methods are investigated through a combination of time-resolved in situ high-energy X-ray diffraction and absorption spectroscopy measurements. The real-time observation reveals a strong temperature dependence of the kinetics of cationic ordering in NMC71515 as a result of thermal-driven oxidation of transition metals and lithium/oxygen loss that concomitantly occur during heat treatment. Through synthetic control of the kinetic reaction pathway, a layered NMC71515 with low cationic disordering and a high reversible capacity is prepared in air. The findings may help to pave the way for designing high-Ni layered oxide cathodes for LIBs.",

keywords = "cationic ordering, high-energy X-ray diffraction, layered oxide cathodes, lithium-ion batteries, X-ray absorption spectroscopy",

author = "Dawei Wang and Ronghui Kou and Yang Ren and Cheng-Jun Sun and Hu Zhao and Ming-Jian Zhang and Yan Li and Ashifia Huq and Ko, \{J. Y. Peter\} and Feng Pan and Yang-Kook Sun and Yong Yang and Khalil Amine and Jianming Bai and Zonghai Chen and Feng Wang",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2017",

month = oct,

day = "18",

doi = "10.1002/adma.201606715",

language = "English",

volume = "29",

journal = "Advanced Materials",

issn = "0935-9648",

publisher = "Wiley-Blackwell",

number = "39",

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TY - JOUR

T1 - Synthetic Control of Kinetic Reaction Pathway and Cationic Ordering in High-Ni Layered Oxide Cathodes

AU - Wang, Dawei

AU - Kou, Ronghui

AU - Ren, Yang

AU - Sun, Cheng-Jun

AU - Zhao, Hu

AU - Zhang, Ming-Jian

AU - Li, Yan

AU - Huq, Ashifia

AU - Ko, J. Y. Peter

AU - Pan, Feng

AU - Sun, Yang-Kook

AU - Yang, Yong

AU - Amine, Khalil

AU - Bai, Jianming

AU - Chen, Zonghai

AU - Wang, Feng

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2017/10/18

Y1 - 2017/10/18

N2 - Nickel-rich layered transition metal oxides, LiNi1− x(MnCo)xO2 (1−x ≥ 0.5), are appealing candidates for cathodes in next-generation lithium-ion batteries (LIBs) for electric vehicles and other large-scale applications, due to their high capacity and low cost. However, synthetic control of the structural ordering in such a complex quaternary system has been a great challenge, especially in the presence of high Ni content. Herein, synthesis reactions for preparing layered LiNi0.7Mn0.15Co0.15O2 (NMC71515) by solid-state methods are investigated through a combination of time-resolved in situ high-energy X-ray diffraction and absorption spectroscopy measurements. The real-time observation reveals a strong temperature dependence of the kinetics of cationic ordering in NMC71515 as a result of thermal-driven oxidation of transition metals and lithium/oxygen loss that concomitantly occur during heat treatment. Through synthetic control of the kinetic reaction pathway, a layered NMC71515 with low cationic disordering and a high reversible capacity is prepared in air. The findings may help to pave the way for designing high-Ni layered oxide cathodes for LIBs.

AB - Nickel-rich layered transition metal oxides, LiNi1− x(MnCo)xO2 (1−x ≥ 0.5), are appealing candidates for cathodes in next-generation lithium-ion batteries (LIBs) for electric vehicles and other large-scale applications, due to their high capacity and low cost. However, synthetic control of the structural ordering in such a complex quaternary system has been a great challenge, especially in the presence of high Ni content. Herein, synthesis reactions for preparing layered LiNi0.7Mn0.15Co0.15O2 (NMC71515) by solid-state methods are investigated through a combination of time-resolved in situ high-energy X-ray diffraction and absorption spectroscopy measurements. The real-time observation reveals a strong temperature dependence of the kinetics of cationic ordering in NMC71515 as a result of thermal-driven oxidation of transition metals and lithium/oxygen loss that concomitantly occur during heat treatment. Through synthetic control of the kinetic reaction pathway, a layered NMC71515 with low cationic disordering and a high reversible capacity is prepared in air. The findings may help to pave the way for designing high-Ni layered oxide cathodes for LIBs.

KW - cationic ordering

KW - high-energy X-ray diffraction

KW - layered oxide cathodes

KW - lithium-ion batteries

KW - X-ray absorption spectroscopy

UR - https://www.scopus.com/pages/publications/85028331157

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85028331157&origin=recordpage

U2 - 10.1002/adma.201606715

DO - 10.1002/adma.201606715

M3 - RGC 21 - Publication in refereed journal

C2 - 28841754

SN - 0935-9648

VL - 29

JO - Advanced Materials

JF - Advanced Materials

IS - 39

M1 - 1606715

ER -

Synthetic Control of Kinetic Reaction Pathway and Cationic Ordering in High-Ni Layered Oxide Cathodes

Abstract

Bibliographical note

UN SDGs

Research Keywords

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