Dual functions of three-dimensional hierarchical architecture on improving the rate capability and cycle performance of LiNi0.8Co0.1Mn0.1O2 cathode material for lithium-ion battery

Liu，Wenchao1,2; Zang，Yunhao1; Qu，Jiangying1; Gao，Feng1; Zaman，Shahid3; Zhou，Gang1; Ji，Shaomin2

2022-04-01

10.1016/j.ceramint.2021.12.097

CERAMICS INTERNATIONAL   影响因子和分区

0272-8842

1873-3956

The main obstacles in lithium-ion battery are limited by rate performance and the rapid capacity fading of LiNiCoMnO (NCM811). Herein, a novel three-dimensional (3D) hierarchical coating material has been fabricated by in situ growing carbon nanotubes (CNTs) on the surfaces of Ni–Al double oxide (Ni–Al-LDO) sheets (named as LDO&CNT) with Ni–Al double hydroxide (Ni–Al-LDH) as both the substrate and catalyst precursor. The resultant LDO&CNT nanocomposites are uniformly coated on the surfaces of NCM811 by the physical mixing method. The rate capability of the resultant cathode material retains to 78.80% at a current rate of 3C. Its capacity retention increases by 6.7–14.42% compared with pristine NCM811 after 100 cycles within a potential range of 2.75–4.3 V at 0.5C. The improved rate capability and cycle performance of NCM811 are assigned to the synergistic effects between Ni–Al-LDO and CNTs. The hierarchical LDO&CNT nanocomposites coating on the surface of NCM811 avoids the aggregation of conductive CNTs and the stacking of Ni–Al-LDO nanosheets. Furthermore, it accelerates Li and electrons shuttle and reduces the reaction of LiO with HO and CO in air, which results in LiCO and LiOH alkali formation on the NCM811 surface.

carbon nanotube Coating modification Ni-rich cathode Ni–Al double hydroxide

SCI ; EI

英语

其他

NSFC, China[51972059,51901043] ; Key-Area Research and Development Program of Guang-dong Province[2020B0101030005] ; Scientific Research Foundation for Leading Scholars in Dongguan University of Technology[GB200902-31] ; Dongguan Sci-tech Commissoner[20211800500082,20201800500502]

Materials Science

Materials Science, Ceramics

WOS:000770898000002

ELSEVIER SCI LTD

20215111357878

Aluminum coatings ; Aluminum compounds ; Cathodes ; Lithium compounds ; Lithium-ion batteries ; Manganese compounds ; Nanocomposites ; Nickel compounds

Nanotechnology:761 ; Coating Materials:813.2 ; Solid State Physics:933 ; Crystalline Solids:933.1

MATERIALS SCIENCE

2-s2.0-85121267346

Scopus

1.School of Environment and Civil Engineering,Dongguan University of Technology,Dongguan,523808,China
2.College of Light Industry and Chemical Engineering,Guangdong University of Technology,Guangzhou,510006,China
3.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Liu，Wenchao,Zang，Yunhao,Qu，Jiangying,et al. Dual functions of three-dimensional hierarchical architecture on improving the rate capability and cycle performance of LiNi0.8Co0.1Mn0.1O2 cathode material for lithium-ion battery[J]. CERAMICS INTERNATIONAL,2022,48(7):9124-9133.

Liu，Wenchao.,Zang，Yunhao.,Qu，Jiangying.,Gao，Feng.,Zaman，Shahid.,...&Ji，Shaomin.(2022).Dual functions of three-dimensional hierarchical architecture on improving the rate capability and cycle performance of LiNi0.8Co0.1Mn0.1O2 cathode material for lithium-ion battery.CERAMICS INTERNATIONAL,48(7),9124-9133.

Liu，Wenchao,et al."Dual functions of three-dimensional hierarchical architecture on improving the rate capability and cycle performance of LiNi0.8Co0.1Mn0.1O2 cathode material for lithium-ion battery".CERAMICS INTERNATIONAL 48.7(2022):9124-9133.