Controllable synthesis of spherical precursor Ni0.8Co0.1Mn0.1(OH)2 for nickel-rich cathode material in Li-ion batteries

Yin Ding; Daobin Mu; Borong Wu; Zhikun Zhao; Rui Wang

doi:10.1016/j.ceramint.2019.12.204

Controllable synthesis of spherical precursor Ni_0.8Co_0.1Mn_0.1(OH)₂ for nickel-rich cathode material in Li-ion batteries

Yin Ding, Daobin Mu^*, Borong Wu, Zhikun Zhao, Rui Wang

^*Corresponding author for this work

School of Material Science and Engineering

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

32 Citations (Scopus)

Abstract

Synthesis of precursor Ni_0.8Co_0.1Mn_0.1(OH)₂ in regular sphere shape as nickel-rich cathode material for Li-ion batteries remains challenging. Here, we report that the morphology of Ni_0.8Co_0.1Mn_0.1(OH)₂ can be tuned by controlling the reaction conditions of co-precipitation. The effects of the concentration of NH₃·H₂O, pH of reaction solution, and stirring speed were studied in detailed. Precursor Ni_0.8Co_0.1Mn_0.1(OH)₂ with outstanding spherical hierarchical structure was successfully prepared. The cathode material of LiNi_0.8Co_0.1Mn_0.1O₂ was then synthesized based on the prepared Ni_0.8Co_0.1Mn_0.1(OH)₂. It showed excellent crystal structure, morphology and electrochemical properties. Within the voltage range of 2.7–4.3V, the initial discharge specific capacity was 203.7mAh·g^-1 and 198.8mAh·g^-1 at rate of 0.1C and 0.2C (1C = 200 mA g^-1, at 30°C), and the capacity retention were 94.4% and 88.0% for 100cycles and 200cycles (0.2C, at 30°C), respectively.

Original language	English
Pages (from-to)	9436-9445
Number of pages	10
Journal	Ceramics International
Volume	46
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2019.12.204
Publication status	Published - May 2020

Keywords

Co-precipitation
Li-ion batteries
Precursor NiCoMn(OH)
Spherical

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Ding, Y., Mu, D., Wu, B., Zhao, Z., & Wang, R. (2020). Controllable synthesis of spherical precursor Ni_0.8Co_0.1Mn_0.1(OH)₂ for nickel-rich cathode material in Li-ion batteries. Ceramics International, 46(7), 9436-9445. https://doi.org/10.1016/j.ceramint.2019.12.204

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title = "Controllable synthesis of spherical precursor Ni0.8Co0.1Mn0.1(OH)2 for nickel-rich cathode material in Li-ion batteries",

abstract = "Synthesis of precursor Ni0.8Co0.1Mn0.1(OH)2 in regular sphere shape as nickel-rich cathode material for Li-ion batteries remains challenging. Here, we report that the morphology of Ni0.8Co0.1Mn0.1(OH)2 can be tuned by controlling the reaction conditions of co-precipitation. The effects of the concentration of NH3·H2O, pH of reaction solution, and stirring speed were studied in detailed. Precursor Ni0.8Co0.1Mn0.1(OH)2 with outstanding spherical hierarchical structure was successfully prepared. The cathode material of LiNi0.8Co0.1Mn0.1O2 was then synthesized based on the prepared Ni0.8Co0.1Mn0.1(OH)2. It showed excellent crystal structure, morphology and electrochemical properties. Within the voltage range of 2.7–4.3V, the initial discharge specific capacity was 203.7mAh·g-1 and 198.8mAh·g-1 at rate of 0.1C and 0.2C (1C = 200 mA g-1, at 30°C), and the capacity retention were 94.4% and 88.0% for 100cycles and 200cycles (0.2C, at 30°C), respectively.",

keywords = "Co-precipitation, Li-ion batteries, Precursor NiCoMn(OH), Spherical",

author = "Yin Ding and Daobin Mu and Borong Wu and Zhikun Zhao and Rui Wang",

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AU - Ding, Yin

AU - Mu, Daobin

AU - Wu, Borong

AU - Zhao, Zhikun

AU - Wang, Rui

PY - 2020/5

Y1 - 2020/5

N2 - Synthesis of precursor Ni0.8Co0.1Mn0.1(OH)2 in regular sphere shape as nickel-rich cathode material for Li-ion batteries remains challenging. Here, we report that the morphology of Ni0.8Co0.1Mn0.1(OH)2 can be tuned by controlling the reaction conditions of co-precipitation. The effects of the concentration of NH3·H2O, pH of reaction solution, and stirring speed were studied in detailed. Precursor Ni0.8Co0.1Mn0.1(OH)2 with outstanding spherical hierarchical structure was successfully prepared. The cathode material of LiNi0.8Co0.1Mn0.1O2 was then synthesized based on the prepared Ni0.8Co0.1Mn0.1(OH)2. It showed excellent crystal structure, morphology and electrochemical properties. Within the voltage range of 2.7–4.3V, the initial discharge specific capacity was 203.7mAh·g-1 and 198.8mAh·g-1 at rate of 0.1C and 0.2C (1C = 200 mA g-1, at 30°C), and the capacity retention were 94.4% and 88.0% for 100cycles and 200cycles (0.2C, at 30°C), respectively.

AB - Synthesis of precursor Ni0.8Co0.1Mn0.1(OH)2 in regular sphere shape as nickel-rich cathode material for Li-ion batteries remains challenging. Here, we report that the morphology of Ni0.8Co0.1Mn0.1(OH)2 can be tuned by controlling the reaction conditions of co-precipitation. The effects of the concentration of NH3·H2O, pH of reaction solution, and stirring speed were studied in detailed. Precursor Ni0.8Co0.1Mn0.1(OH)2 with outstanding spherical hierarchical structure was successfully prepared. The cathode material of LiNi0.8Co0.1Mn0.1O2 was then synthesized based on the prepared Ni0.8Co0.1Mn0.1(OH)2. It showed excellent crystal structure, morphology and electrochemical properties. Within the voltage range of 2.7–4.3V, the initial discharge specific capacity was 203.7mAh·g-1 and 198.8mAh·g-1 at rate of 0.1C and 0.2C (1C = 200 mA g-1, at 30°C), and the capacity retention were 94.4% and 88.0% for 100cycles and 200cycles (0.2C, at 30°C), respectively.

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Controllable synthesis of spherical precursor Ni_0.8Co_0.1Mn_0.1(OH)₂ for nickel-rich cathode material in Li-ion batteries

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