Enhanced high-rate performance and cyclic stability of LiNi0.8Co0.1Mn0.1O2 through LiAlO2 and polyaniline double-layer coating

Yupeng Feng; Maolin Zhang; Yingjun Li; Meng Wan; Xiaofei Sun

doi:10.1016/j.matlet.2024.137575

Enhanced high-rate performance and cyclic stability of LiNi_0.8Co_0.1Mn_0.1O₂ through LiAlO₂ and polyaniline double-layer coating

Yupeng Feng
, Maolin Zhang
, Yingjun Li
, Meng Wan
, Xiaofei Sun

School of Mechanical Engineering

Xidian University
Ltd.

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

1 Scopus citations

Abstract

LiNi_0.8Co_0.1Mn_0.1O₂ (NCM811) is widely utilized in electric vehicle batteries due to its high capacity and low cost, but its poor high-rate performance and cyclic stability restrict its applications. In this study, the NCM811 was surface coated both with ionic conductor LiAlO₂ and electrical conductor polyaniline to simultaneously improve its high-rate performance and cyclic stability. Results show that the coated NCM811 has excellent capacity retention rate, namely 93.6% (25 ℃) and 83.9% (50 ℃) at 10C after 100 cycles. These results demonstrate that prepared double-layer coating is effective way to improve high-rate performance of Ni-rich cathode materials.

Original language	English
Article number	137575
Journal	Materials Letters
Volume	378
DOIs	https://doi.org/10.1016/j.matlet.2024.137575
State	Published - 1 Jan 2025

Keywords

Energy storage and conversion
High-rate performance
LiAlO-PANI double-layer coating
Microstructure
NCM811

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10.1016/j.matlet.2024.137575

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title = "Enhanced high-rate performance and cyclic stability of LiNi0.8Co0.1Mn0.1O2 through LiAlO2 and polyaniline double-layer coating",

abstract = "LiNi0.8Co0.1Mn0.1O2 (NCM811) is widely utilized in electric vehicle batteries due to its high capacity and low cost, but its poor high-rate performance and cyclic stability restrict its applications. In this study, the NCM811 was surface coated both with ionic conductor LiAlO2 and electrical conductor polyaniline to simultaneously improve its high-rate performance and cyclic stability. Results show that the coated NCM811 has excellent capacity retention rate, namely 93.6\% (25 ℃) and 83.9\% (50 ℃) at 10C after 100 cycles. These results demonstrate that prepared double-layer coating is effective way to improve high-rate performance of Ni-rich cathode materials.",

keywords = "Energy storage and conversion, High-rate performance, LiAlO-PANI double-layer coating, Microstructure, NCM811",

author = "Yupeng Feng and Maolin Zhang and Yingjun Li and Meng Wan and Xiaofei Sun",

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year = "2025",

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doi = "10.1016/j.matlet.2024.137575",

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journal = "Materials Letters",

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TY - JOUR

T1 - Enhanced high-rate performance and cyclic stability of LiNi0.8Co0.1Mn0.1O2 through LiAlO2 and polyaniline double-layer coating

AU - Feng, Yupeng

AU - Zhang, Maolin

AU - Li, Yingjun

AU - Wan, Meng

AU - Sun, Xiaofei

PY - 2025/1/1

Y1 - 2025/1/1

N2 - LiNi0.8Co0.1Mn0.1O2 (NCM811) is widely utilized in electric vehicle batteries due to its high capacity and low cost, but its poor high-rate performance and cyclic stability restrict its applications. In this study, the NCM811 was surface coated both with ionic conductor LiAlO2 and electrical conductor polyaniline to simultaneously improve its high-rate performance and cyclic stability. Results show that the coated NCM811 has excellent capacity retention rate, namely 93.6% (25 ℃) and 83.9% (50 ℃) at 10C after 100 cycles. These results demonstrate that prepared double-layer coating is effective way to improve high-rate performance of Ni-rich cathode materials.

AB - LiNi0.8Co0.1Mn0.1O2 (NCM811) is widely utilized in electric vehicle batteries due to its high capacity and low cost, but its poor high-rate performance and cyclic stability restrict its applications. In this study, the NCM811 was surface coated both with ionic conductor LiAlO2 and electrical conductor polyaniline to simultaneously improve its high-rate performance and cyclic stability. Results show that the coated NCM811 has excellent capacity retention rate, namely 93.6% (25 ℃) and 83.9% (50 ℃) at 10C after 100 cycles. These results demonstrate that prepared double-layer coating is effective way to improve high-rate performance of Ni-rich cathode materials.

KW - Energy storage and conversion

KW - High-rate performance

KW - LiAlO-PANI double-layer coating

KW - Microstructure

KW - NCM811

UR - https://www.scopus.com/pages/publications/85206682802

U2 - 10.1016/j.matlet.2024.137575

DO - 10.1016/j.matlet.2024.137575

M3 - 文章

AN - SCOPUS:85206682802

SN - 0167-577X

VL - 378

JO - Materials Letters

JF - Materials Letters

M1 - 137575

ER -

Enhanced high-rate performance and cyclic stability of LiNi_0.8Co_0.1Mn_0.1O₂ through LiAlO₂ and polyaniline double-layer coating

Abstract

Keywords

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