High-Thermal- and Air-Stability Cathode Material with Concentration-Gradient Buffer for Li-Ion Batteries

Ji Lei Shi; Ran Qi; Xu Dong Zhang; Peng Fei Wang; Wei Gui Fu; Ya Xia Yin; Jian Xu; Li Jun Wan; Yu Guo Guo

doi:10.1021/acsami.7b14684

High-Thermal- and Air-Stability Cathode Material with Concentration-Gradient Buffer for Li-Ion Batteries

Ji Lei Shi
, Ran Qi
, Xu Dong Zhang
, Peng Fei Wang
, Wei Gui Fu
, Ya Xia Yin
, Jian Xu
, Li Jun Wan
, Yu Guo Guo

School of Electrical Engineering

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

89 Scopus citations

Abstract

Delivery of high capacity with high thermal and air stability is a great challenge in the development of Ni-rich layered cathodes for commercialized Li-ion batteries (LIBs). Herein we present a surface concentration-gradient spherical particle with varying elemental composition from the outer end LiNi_1/3Co_1/3Mn_1/3O₂ (NCM) to the inner end LiNi_0.8Co_0.15Al_0.05O₂ (NCA). This cathode material with the merit of NCM concentration-gradient protective buffer and the inner NCA core shows high capacity retention of 99.8% after 200 cycles at 0.5 C. Furthermore, this cathode material exhibits much improved thermal and air stability compared with bare NCA. These results provide new insights into the structural design of high-performance cathodes with high energy density, long life span, and storage stability materials for LIBs in the future.

Original language	English
Pages (from-to)	42829-42835
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	9
Issue number	49
DOIs	https://doi.org/10.1021/acsami.7b14684
State	Published - 13 Dec 2017

Keywords

cathode materials
concentration gradient
Li-ion batteries
Ni-rich
thermal stability

Access to Document

10.1021/acsami.7b14684

Cite this

@article{f5c415f02fac4684a322bf8d80fecd96,

title = "High-Thermal- and Air-Stability Cathode Material with Concentration-Gradient Buffer for Li-Ion Batteries",

abstract = "Delivery of high capacity with high thermal and air stability is a great challenge in the development of Ni-rich layered cathodes for commercialized Li-ion batteries (LIBs). Herein we present a surface concentration-gradient spherical particle with varying elemental composition from the outer end LiNi1/3Co1/3Mn1/3O2 (NCM) to the inner end LiNi0.8Co0.15Al0.05O2 (NCA). This cathode material with the merit of NCM concentration-gradient protective buffer and the inner NCA core shows high capacity retention of 99.8\% after 200 cycles at 0.5 C. Furthermore, this cathode material exhibits much improved thermal and air stability compared with bare NCA. These results provide new insights into the structural design of high-performance cathodes with high energy density, long life span, and storage stability materials for LIBs in the future.",

keywords = "cathode materials, concentration gradient, Li-ion batteries, Ni-rich, thermal stability",

author = "Shi, \{Ji Lei\} and Ran Qi and Zhang, \{Xu Dong\} and Wang, \{Peng Fei\} and Fu, \{Wei Gui\} and Yin, \{Ya Xia\} and Jian Xu and Wan, \{Li Jun\} and Guo, \{Yu Guo\}",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = dec,

day = "13",

doi = "10.1021/acsami.7b14684",

language = "英语",

volume = "9",

pages = "42829--42835",

journal = "ACS Applied Materials and Interfaces",

issn = "1944-8244",

publisher = "American Chemical Society",

number = "49",

}

TY - JOUR

T1 - High-Thermal- and Air-Stability Cathode Material with Concentration-Gradient Buffer for Li-Ion Batteries

AU - Shi, Ji Lei

AU - Qi, Ran

AU - Zhang, Xu Dong

AU - Wang, Peng Fei

AU - Fu, Wei Gui

AU - Yin, Ya Xia

AU - Xu, Jian

AU - Wan, Li Jun

AU - Guo, Yu Guo

PY - 2017/12/13

Y1 - 2017/12/13

N2 - Delivery of high capacity with high thermal and air stability is a great challenge in the development of Ni-rich layered cathodes for commercialized Li-ion batteries (LIBs). Herein we present a surface concentration-gradient spherical particle with varying elemental composition from the outer end LiNi1/3Co1/3Mn1/3O2 (NCM) to the inner end LiNi0.8Co0.15Al0.05O2 (NCA). This cathode material with the merit of NCM concentration-gradient protective buffer and the inner NCA core shows high capacity retention of 99.8% after 200 cycles at 0.5 C. Furthermore, this cathode material exhibits much improved thermal and air stability compared with bare NCA. These results provide new insights into the structural design of high-performance cathodes with high energy density, long life span, and storage stability materials for LIBs in the future.

AB - Delivery of high capacity with high thermal and air stability is a great challenge in the development of Ni-rich layered cathodes for commercialized Li-ion batteries (LIBs). Herein we present a surface concentration-gradient spherical particle with varying elemental composition from the outer end LiNi1/3Co1/3Mn1/3O2 (NCM) to the inner end LiNi0.8Co0.15Al0.05O2 (NCA). This cathode material with the merit of NCM concentration-gradient protective buffer and the inner NCA core shows high capacity retention of 99.8% after 200 cycles at 0.5 C. Furthermore, this cathode material exhibits much improved thermal and air stability compared with bare NCA. These results provide new insights into the structural design of high-performance cathodes with high energy density, long life span, and storage stability materials for LIBs in the future.

KW - cathode materials

KW - concentration gradient

KW - Li-ion batteries

KW - Ni-rich

KW - thermal stability

UR - https://www.scopus.com/pages/publications/85038215247

U2 - 10.1021/acsami.7b14684

DO - 10.1021/acsami.7b14684

M3 - 文章

C2 - 29148695

AN - SCOPUS:85038215247

SN - 1944-8244

VL - 9

SP - 42829

EP - 42835

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 49

ER -

High-Thermal- and Air-Stability Cathode Material with Concentration-Gradient Buffer for Li-Ion Batteries

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this