Results 131 to 140 of about 978 (161)

Li2ZrO3-coated LiNi0.6Co0.2Mn0.2O2 for high-performance cathode material in lithium-ion battery

Ionics, 2015
To improve the high-rate capacity and cycle ability, Li2ZrO3 was successfully coated on LiNi0.6Co0.2Mn0.2O2 materials via wet chemical method. The crystal structure and electrochemical properties of the bare and coated material are studied by X-ray diffractometry (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), cyclic ...
Shuting Sun, Chenqiang Du, Deyang Qu, Xinhe Zhang, Zhiyuan Tang   +4 more
openaire   +1 more source

Microstructure boosting the cycling stability of LiNi0.6Co0.2Mn0.2O2 cathode through Zr-based dual modification

Energy Storage Materials, 2021
Abstract Ni-rich NCM (LiNixCoyMnzO2, 0.6≤x 4.3 V) are applied on these materials. Consequently, the batteries will suffer from aggravated side reactions at the cathode/electrolyte interface and the inherent instabilities of Ni-rich NCM cathodes, and thus exhibit rapid capacity fading and voltage decay. Herein, we report a facile and scalable strategy
Liu Yao, Yanpei Li, Xingpeng Gao, Mingli Cai, Jun Jin, Jianhua Yang, Tongping Xiu, Zhen Song, Michael.E. Badding, Zhaoyin Wen   +9 more
openaire   +1 more source

Synthesis and characterization of Cu-doped LiNi0.6Co0.2Mn0.2O2 materials for Li-ion batteries

Journal of Alloys and Compounds, 2020
Abstract Layered LiNi0.6Co0.2Mn0.2O2 (NCM622) often suffers from the Li/Ni mixing and structure instability, resulting in inferior discharge capacity and cyclability. To resolve these issues, here, a novel Cu-NCM cathode material, LiNi0.6Co0.19Mn0.2Cu0.01O2, is constructed and synthesized by in-situ doping method.
Yang Lu, Hongfei Jin, Yan Mo, Yanyu Qu, Baodong Du, Yong Chen   +5 more
openaire   +1 more source

Transmission electron microscopy studies of structural degradation behavior of LiNi0.6Co0.2Mn0.2O2 cathode materials

Journal of Materials Science, 2017
The variations in the structural and chemical features of LiNi0.6Co0.2Mn0.2O2 (LMO2: L = Li, M = Ni0.6Co0.2Mn0.2) materials were investigated via transmission electron microscopy. The LMO2 materials were used as a cathode material in a Li-battery operated at cutoff voltages of 4.15 and 4.45 V, and subjected to as many as 2200 charge–discharge cycles ...
Han-Sol Yun, Sang-Hyuk Lee, Nam-Hee Cho, Dae-Jin Lee, Hye-Lim Jeon, Sin-Young Park, Wang-Mo Jeong   +6 more
openaire   +1 more source

Tungsten-consolidated crystal structure of LiNi0.6Co0.2Mn0.2O2 cathode materials for superior electrochemical performance

Applied Surface Science, 2020
Abstract Tungsten-consolidated LiNi0.6Co0.2Mn0.2O2 cathode materials (NCMWs) are successfully synthesized by Ni0.6Co0.2Mn0.2(OH)2@W precursor via a facile polyvinyl pyrrolidone (PVP)-assisted wet coating process followed by heat treatment. Experimental results demonstrate that a proper tungsten (W) content can migrate into transition metal layer to ...
Yunjiao Li, Tongxing Lei, Yongxiang Chen, Puliang Li, Wei Li, Junchao Zheng, Jie Zhu, Shiyi Deng, Guolin Cao   +8 more
openaire   +1 more source

Leaching kinetics and interface reaction of LiNi0.6Co0.2Mn0.2O2 materials from spent LIBs using GKB as reductant

Journal of Environmental Management, 2021
The application of green reductant is signification to recycling of cathode materials from spent lithium ions batteries. Here, ginkgo biloba was developed for enhancing leaching of spent LiNi0.6Co0.2Mn0.2O2 materials with systematically analysis of leaching kinetics and interface reaction.
Bowen, Zhu, Yingjie, Zhang, Yuling, Zou, Zelong, Yang, Bao, Zhang, Yan, Zhao, Mingyu, Zhang, Qi, Meng, Peng, Dong   +8 more
openaire   +2 more sources

Improved electrochemical properties of nickel rich LiNi0.6Co0.2Mn0.2O2 cathode materials by Al2O3 coating

AIP Conference Proceedings, 2018
Al2O3 has successfully coated on LiNi0.6Co0.2Mn0.2O2 cathode material by a facile coating method. The results of scanning electron microscopy and transmission electron microscope images show that Al2O3 were successfully attached onto the surface of LiNi0.6Co0.2Mn0.2O2 as expected.
Liping Mao, Ling Ai, Shiyou Li, Qian Hou, Yingchun Xie, Youwei Liang, Jing Xie   +6 more
openaire   +1 more source

Synthesis of LiNi0.6Co0.2Mn0.2O2 from mixed cathode materials of spent lithium-ion batteries

Journal of Power Sources, 2020
Abstract With the aggravation of resource shortage and environmental problems, the disposal of spent lithium-ion batteries becomes crucial. In this work, a sustainable closed-loop route to recycle mixed cathode materials from spent lithium-ion batteries is proposed.
Wei Chu, YaLi Zhang, Xia Chen, YaoGuo Huang, HongYou Cui, Ming Wang, Jing Wang   +6 more
openaire   +1 more source

Low temperature performance of graphite and LiNi0.6Co0.2Mn0.2O2 electrodes in Li-ion batteries

Journal of Materials Science, 2014
Low temperature (LT) behavior of graphite/LiNi0.6Co0.2Mn0.2O2 (NCM622) cells prepared with low loading or LL (thinner electrodes prepared with low loading and packing density) and high loading or HL (thicker electrodes prepared with high loading and packing density) were investigated.
Adnan Yaqub, You-Jin Lee, Min Ji Hwang, Syed Atif Pervez, Umer Farooq, Jeong-Hee Choi, Doohun Kim, Hae-Young Choi, Seong-Back Cho, Chil-Hoon Doh   +9 more
openaire   +1 more source

Single-crystal LiNi0.6Co0.2Mn0.2O2 as high performance cathode materials for Li-ion batteries

Journal of Alloys and Compounds, 2016
Abstract Single-crystal nickel-high materials (ST-LNCMO) LiNi0.6Co0.2Mn0.2O2 have been synthesized using a versatile hydrothermal method. The as-prepared samples are characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscope (TEM), and selected area electron diffraction (SAED).
Lei Wang, Borong Wu, Daobin Mu, Xiaojiang Liu, Yiyuan Peng, Hongliang Xu, Qi Liu, Liang Gai, Feng Wu   +8 more
openaire   +1 more source