Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating Method

Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating Method

Based on the normal co-precipitation method to synthesize LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> cathode material, we propose a novel approach using a liquid nitrogen quenching method to synthesize Al<sub>2</sub>O&l...

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Main Authors: Wenyuan Yang, Yinze Zuo, Qi Chen, Yan Zhang
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:Materials
Subjects:
lithium ion batteries
lini<sub>0.6</sub>co<sub>0.2</sub>mn<sub>0.2</sub>o<sub>2</sub>
liquid nitrogen
al<sub>2</sub>o<sub>3</sub>
electrochemical performance
Online Access:https://www.mdpi.com/1996-1944/12/22/3666
id doaj-a5c992a1e1c34b7a8e459e2070404b9b
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spelling doaj-a5c992a1e1c34b7a8e459e2070404b9b2020-11-25T02:13:42ZengMDPI AGMaterials1996-19442019-11-011222366610.3390/ma12223666ma12223666Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating MethodWenyuan Yang0Yinze Zuo1Qi Chen2Yan Zhang3National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, ChinaYunnan Jingxi New Material Technology Co., Ltd., Qujing 655000, ChinaYunnan Jingxi New Material Technology Co., Ltd., Qujing 655000, ChinaBased on the normal co-precipitation method to synthesize LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> cathode material, we propose a novel approach using a liquid nitrogen quenching method to synthesize Al<sub>2</sub>O<sub>3</sub> coated LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> cathode material. In the whole process, liquid nitrogen was used four times to quench the materials from high temperatures (50 &#176;C, 750 &#176;C, 90 &#176;C, 500 &#176;C) to &#8722;196 &#176;C rapidly in four stages. Various characterizations proved that this method could help to improve the electrochemical performance of lithium-ion batteries. Especially at 5 C rate current, after 100 cycles, the specific discharge capacities were 24.5 mAh/g (LNCM 622), 43.8 mAh/g (LNCM 622-LN), and 53.9 mAh/g (LNCM 622-LN@Al<sub>2</sub>O<sub>3</sub>). Liquid N<sub>2</sub> quenching increased the charge/discharge capacities and the Al<sub>2</sub>O<sub>3</sub> layer increased the cycle stability at high current, to finally obtain improved electrochemical properties.https://www.mdpi.com/1996-1944/12/22/3666lithium ion batterieslini<sub>0.6</sub>co<sub>0.2</sub>mn<sub>0.2</sub>o<sub>2</sub>liquid nitrogenal<sub>2</sub>o<sub>3</sub>electrochemical performance
collection DOAJ
language English
format Article
sources DOAJ
author Wenyuan Yang
Yinze Zuo
Qi Chen
Yan Zhang
spellingShingle Wenyuan Yang
Yinze Zuo
Qi Chen
Yan Zhang
Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating Method
Materials
lithium ion batteries
lini<sub>0.6</sub>co<sub>0.2</sub>mn<sub>0.2</sub>o<sub>2</sub>
liquid nitrogen
al<sub>2</sub>o<sub>3</sub>
electrochemical performance
author_facet Wenyuan Yang
Yinze Zuo
Qi Chen
Yan Zhang
author_sort Wenyuan Yang
title Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating Method
title_short Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating Method
title_full Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating Method
title_fullStr Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating Method
title_full_unstemmed Synthesis of High-performance LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al<sub>2</sub>O<sub>3</sub> Coating Method
title_sort synthesis of high-performance lini<sub>0.6</sub>co<sub>0.2</sub>mn<sub>0.2</sub>o<sub>2</sub> cathode material for lithium-ion batteries by using a four times liquid nitrogen quenching method and an al<sub>2</sub>o<sub>3</sub> coating method
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2019-11-01
description Based on the normal co-precipitation method to synthesize LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> cathode material, we propose a novel approach using a liquid nitrogen quenching method to synthesize Al<sub>2</sub>O<sub>3</sub> coated LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub> cathode material. In the whole process, liquid nitrogen was used four times to quench the materials from high temperatures (50 &#176;C, 750 &#176;C, 90 &#176;C, 500 &#176;C) to &#8722;196 &#176;C rapidly in four stages. Various characterizations proved that this method could help to improve the electrochemical performance of lithium-ion batteries. Especially at 5 C rate current, after 100 cycles, the specific discharge capacities were 24.5 mAh/g (LNCM 622), 43.8 mAh/g (LNCM 622-LN), and 53.9 mAh/g (LNCM 622-LN@Al<sub>2</sub>O<sub>3</sub>). Liquid N<sub>2</sub> quenching increased the charge/discharge capacities and the Al<sub>2</sub>O<sub>3</sub> layer increased the cycle stability at high current, to finally obtain improved electrochemical properties.
topic lithium ion batteries
lini<sub>0.6</sub>co<sub>0.2</sub>mn<sub>0.2</sub>o<sub>2</sub>
liquid nitrogen
al<sub>2</sub>o<sub>3</sub>
electrochemical performance
url https://www.mdpi.com/1996-1944/12/22/3666
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AT yinzezuo synthesisofhighperformancelinisub06subcosub02submnsub02subosub2subcathodematerialforlithiumionbatteriesbyusingafourtimesliquidnitrogenquenchingmethodandanalsub2subosub3subcoatingmethod
AT qichen synthesisofhighperformancelinisub06subcosub02submnsub02subosub2subcathodematerialforlithiumionbatteriesbyusingafourtimesliquidnitrogenquenchingmethodandanalsub2subosub3subcoatingmethod
AT yanzhang synthesisofhighperformancelinisub06subcosub02submnsub02subosub2subcathodematerialforlithiumionbatteriesbyusingafourtimesliquidnitrogenquenchingmethodandanalsub2subosub3subcoatingmethod
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