B2O3/LiBO2 dual-modification layer stabilized Ni-rich cathode for lithium-ion battery

Lv，Yao1,2; Huang，Shifei2,3; Lu，Sirong4; Ding，Wenbo3; Yu，Xiaoliang5; Liang，Gemeng6; Zou，Jinshuo6; Kang，Feiyu2,3; Zhang，Jiujun1; Cao，Yidan2,3

2022-07-15

10.1016/j.jpowsour.2022.231510

JOURNAL OF POWER SOURCES   影响因子和分区

0378-7753

1873-2755

Ni-rich layered oxide material with high theoretical capacity and low cost is one of the most promising cathode candidates for high-energy-density lithium-ion battery. However, increase of Ni content triggers structural instability and fast capacity degradation, which severely impedes the practical application of Ni-rich materials. Here, a surface dual-modification layer of B2O3 & LiBO2 is introduced to Ni-rich material LiNi0.89Co0.08Mn0.03O2 (NCM89), which successfully stabilizes the layered structure of NCM89 during cycling as well as removes residual lithium in NCM89. The in-situ X-ray diffraction and cross-sectional scanning electron microscopy results demonstrate effectively improved structural reversibility and stability of the cathode. Moreover, the dissolution of transition metals and decomposition of electrolyte at the cathode/electrolyte interface are successfully suppressed, resulting in beneficial cathode electrolyte interphase (CEI) layer. As a result, the boron modified cathode exhibits s a high capacity of 180.4mAh g(-1) along with an excellent capacity retention of 90% after 100 cycles at 1C in 2.75-4.35 V at 25 degrees C, while the pristine NCM89 cathode only retains 59% of its initial capacity after 100 cycles. Furthermore, the capacity retention of full cell after 350 cycles is improved from 52.5% to 90%.

Ni-rich layered oxide Interfacial stability Capacity degradation Dual-modification layer Boron Structural stability

SCI ; EI

英语

其他

Guangdong Basic and Applied Basic Research Foundation[2019A1515110530] ; China Postdoctoral Science Foundation[2021M691750] ; Shenzhen Science and Technology Program["JCYJ20210324140804013","RCBS20200714115000219"] ; Tsinghua Shenzhen International Graduate School["QD2021005N","JC2021007"]

Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000821907900004

ELSEVIER

20221812054709

Cathodes ; Cobalt compounds ; Electrolytes ; Lithium compounds ; Lithium-ion batteries ; Manganese compounds ; Nickel oxide ; Scanning electron microscopy ; Stability ; Transition metals

Metallurgy and Metallography:531 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Electric Batteries and Fuel Cells:702 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

MATERIALS SCIENCE

2-s2.0-85129107190

Web of Science

1.College of Sciences and Institute for Sustainable Energy,Shanghai University,Shanghai,China
2.Institute of Materials Research,Shenzhen International Graduate School,Tsinghua University,Shenzhen,China
3.Tsinghua-Berkeley Shenzhen Institute,Tsinghua University,Shenzhen,China
4.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,China
5.Department of Mechanical Engineering,The Hong Kong Polytechnic University,Hong Kong,China
6.School of Chemical Engineering & Advanced Materials,The University of Adelaide,Adelaide,5005,Australia

Lv，Yao,Huang，Shifei,Lu，Sirong,et al. B2O3/LiBO2 dual-modification layer stabilized Ni-rich cathode for lithium-ion battery[J]. JOURNAL OF POWER SOURCES,2022,536.

Lv，Yao.,Huang，Shifei.,Lu，Sirong.,Ding，Wenbo.,Yu，Xiaoliang.,...&Cao，Yidan.(2022).B2O3/LiBO2 dual-modification layer stabilized Ni-rich cathode for lithium-ion battery.JOURNAL OF POWER SOURCES,536.

Lv，Yao,et al."B2O3/LiBO2 dual-modification layer stabilized Ni-rich cathode for lithium-ion battery".JOURNAL OF POWER SOURCES 536(2022).