LaF3-coated Li[Li0.2Mn0.56Ni0.16Co0.08]O2 as cathode material with improved electrochemical performance for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 50859-50864 ◽  
Author(s):  
Qingliang Xie ◽  
Zhibiao Hu ◽  
Chenhao Zhao ◽  
Shuirong Zhang ◽  
Kaiyu Liu
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Initial Coulombic Efficiency

The LaF3-coated Li1.2Mn0.56Ni0.16Co0.08O2, compared with pristine Li1.2Mn0.56Ni0.16Co0.08O2, exhibits an enormous improvement in the initial coulombic efficiency and rate capability.

LaPO4-coated Li1.2Mn0.56Ni0.16Co0.08O2 as a cathode material with enhanced coulombic efficiency and rate capability for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (94) ◽  
pp. 77324-77331 ◽  
Author(s):  
Qingliang Xie ◽  
Chenhao Zhao ◽  
Zhibiao Hu ◽  
Qi Huang ◽  
Cheng Chen ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Combustion Method ◽  
Chemical Precipitation ◽  
Porous Microspheres

Layered Li[Li0.2Mn0.56Ni0.16Co0.08]O2 porous microspheres have been successfully synthesized by a urea combustion method, and then coated with appropriate amount of LaPO4via a facile chemical precipitation route.

Synthesis and Electrochemical Performance of SnO2/Graphene Hybrid Anode for Lithium Ion Batteries

2013 ◽  
Vol 1540 ◽  
Author(s):  
Chia-Yi Lin ◽  
Chien-Te Hsieh ◽  
Ruey-Shin Juang
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Homogeneous Distribution

ABSTRACTAn efficient microwave-assisted polyol (MP) approach is report to prepare SnO2/graphene hybrid as an anode material for lithium ion batteries. The key factor to this MP method is to start with uniform graphene oxide (GO) suspension, in which a large amount of surface oxygenate groups ensures homogeneous distribution of the SnO2 nanoparticles onto the GO sheets under the microwave irradiation. The period for the microwave heating only takes 10 min. The obtained SnO2/graphene hybrid anode possesses a reversible capacity of 967 mAh g-1 at 0.1 C and a high Coulombic efficiency of 80.5% at the first cycle. The cycling performance and the rate capability of the hybrid anode are enhanced in comparison with that of the bare graphene anode. This improvement of electrochemical performance can be attributed to the formation of a 3-dimensional framework. Accordingly, this study provides an economical MP route for the fabrication of SnO2/graphene hybrid as an anode material for high-performance Li-ion batteries.

scholarly journals High electrochemical performance of nanocrystallized carbon-coated LiFePO4 modified by tris(pentafluorophenyl) borane as a cathode material for lithium-ion batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (51) ◽  
pp. 28978-28986 ◽  
Author(s):  
Yifang Wu ◽  
Shaokun Chong ◽  
Yongning Liu ◽  
ShengWu Guo ◽  
Pengwei Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
High Rate Capability ◽  
Carbon Coated ◽  
Boron Source

C18BF15 was first adopted as a boron source and has demonstrated its clear modification effects, as shown by the high rate capability.

A peanut-like hierarchical micro/nano-Li1.2Mn0.54Ni0.18Co0.08O2 cathode material for lithium-ion batteries with enhanced electrochemical performance

2015 ◽  
Vol 3 (27) ◽  
pp. 14291-14297 ◽  
Author(s):  
Yi-di Zhang ◽  
Yi Li ◽  
Xiao-qing Niu ◽  
Dong-huang Wang ◽  
Ding Zhou ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Solvothermal Method ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cyclic Stability ◽  
Enhanced Electrochemical Performance

A novel peanut-like hierarchical micro/nano-lithium-rich cathode material with superior cyclic stability and enhanced rate capability is synthesized via a solvothermal method.

A novel hierarchical precursor of densely integrated hydroxide nanoflakes on oxide microspheres toward high-performance layered Ni-rich cathode for lithium ion batteries

2018 ◽  
Vol 2 (10) ◽  
pp. 1822-1828 ◽  
Author(s):  
Yan Li ◽  
Xinhai Li ◽  
Zhixing Wang ◽  
Huajun Guo ◽  
Tao Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Tap Density ◽  
Excellent Cycling Stability ◽  
Initial Coulombic Efficiency

LiNi0.8Co0.1Mn0.1O2 cathode derived from a novel [email protected](OH)2 hierarchical precursor exhibits improved tap density and initial coulombic efficiency, as well as excellent cycling stability and superior rate capability.

Effect of synthetic condition on the electrochemical behavior of MoO3 microplates used as anode in lithium-ion batteries

2018 ◽  
Vol 96 (3) ◽  
pp. 340-344
Author(s):  
Xia Zhang ◽  
Yan Li ◽  
Danqing Li ◽  
Yujun Zhang ◽  
Yuandong Xu
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Hydrothermal Reaction ◽  
Molybdenum Trioxide ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Potential Candidate ◽  
Lithium Storage

Molybdenum trioxide (MoO3) microplates are synthesized via the hydrothermal method and a simple heat treatment process without adding surfactant. Different hydrothermal reaction times and acidities are employed to explore the influence of preparation condition on the electrochemical performance for MoO3 microplates. These studies reveal that the hydrothermal time and acidity have a great impact on the morphology of MoO3 microplates. As anode materials for lithium-ion batteries (LIBs), the sheets-assembled MoO3 microplates with longer hydrothermal reaction time and proper acidity possess a superior morphology, which show better cycling performance and rate capability stability. The prepared MoO3 microplates display that the coulombic efficiency is around 100% during 50 cycles, demonstrating much better lithium storage properties. Considering the excellent electrochemical performance, the MoO3 microplates are considered to be a potential candidate in high-performance LIBs.

Synthesis, Characterization, and Electrochemical Analysis of the Cobalt Free Composite Cathode Material 0.5Li2MnO3-0.25LiMn2O4-0.25LiNi0.5Mn0.5O2 for Lithium Ion Batteries Applications

MRS Advances ◽  
2016 ◽  
Vol 1 (45) ◽  
pp. 3063-3068
Author(s):  
Mónica López de Victoria ◽  
Loraine Torres-Castro ◽  
Rajesh K. Katiyar ◽  
Jifi Shojan ◽  
Valerio Dorvilien ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Coulombic Efficiency ◽  
Sol Gel ◽  
Rate Capability ◽  
Lithium Ion ◽  
Composite Cathode ◽  
Sem Images ◽  
Composite Cathodes ◽  
Composite Cathode Material

ABSTRACTThe inclusion of a spinel structure in the layered-layered composite cathode material is currently explored to enhance the cycling stability and electrochemical properties of lithium ion batteries. Li2MnO3 based composite cathodes are one of the most widely investigated positive electrodes due to their high discharge capacity and rate capability. In our studies, we have synthesized the cobalt-free layered-layered-spinel composite cathode material, 0.5Li2MnO3-0.25LiMn2O4-0.25LiNi0.5Mn0.5O2 (LLNMO), via the sol-gel method. The structure of the composition was characterized using XRD and Raman Spectroscopy in which peaks corresponding to the layered and spinel structures were identified. The morphology along with the elemental analysis were studied with SEM/EDX. The SEM images exhibited agglomerates with particle size in the nano range and the EDX analysis confirmed the presence of manganese, nickel and oxygen in the structure. The electrochemical performance was analyzed by charge/discharge studies (CD) and cyclic voltammetry (CV). The composite cathode material showed high capacity retention and good cycle stability with a coulombic efficiency of 98%. The discussed results demonstrated that LLNMO is a promising cathode material for the next generation of Li-ion batteries.

Lithium-rich Li1.2Ni0.13Co0.13Mn0.54O2 oxide coated by Li3PO4 and carbon nanocomposite layers as high performance cathode materials for lithium ion batteries

2015 ◽  
Vol 3 (6) ◽  
pp. 2634-2641 ◽  
Author(s):  
Hui Liu ◽  
Cheng Chen ◽  
Chunyu Du ◽  
Xiaoshu He ◽  
Geping Yin ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Initial Coulombic Efficiency ◽  
Carbon Nanocomposite

A lithium-rich Li1.2Ni0.13Co0.13Mn0.54O2 material coated by fast Li+ and electron conductors exhibits outstanding rate capability, cyclability and initial coulombic efficiency.

scholarly journals Surface nitridation of Li4Ti5O12 by thermal decomposition of urea to improve quick charging capability of lithium ion batteries

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jihyun Jang ◽  
Tae Hun Kim ◽  
Ji Heon Ryu
Keyword(s):  
Lithium Ion Batteries ◽  
Coulombic Efficiency ◽  
Electronic Conductivity ◽  
Rate Capability ◽  
Negative Electrode ◽  
Lithium Ion ◽  
High Rate ◽  
High Electronic Conductivity ◽  
Negative Electrode Material ◽  
Initial Coulombic Efficiency

AbstractAs the application of lithium-ion batteries in electric vehicles increases, the demand for improved charging characteristics of batteries is also increasing. Lithium titanium oxide (Li4Ti5O12, LTO) is a negative electrode material with high rate characteristics, but further improvement in rate characteristics is needed for achieving the quick-charging performance required by electric vehicle markets. In this study, the surface of LTO was coated with a titanium nitride (TiN) layer using urea and an autogenic reactor, and electrochemical performance was improved (initial Coulombic efficiency and the rate capability were improved from 95.6 to 4.4% for pristine LTO to 98.5% and 53.3% for urea-assisted TiN-coated LTO, respectively. We developed a process for commercial production of surface coatings using eco-friendly material to further enhance the charging performance of LTO owing to high electronic conductivity of TiN.

Green water-induced spinel heterostructure interface enabling high performance lithium and manganese rich oxides

2021 ◽  
Author(s):  
Wenqiang Tu ◽  
Xian-Shu Wang ◽  
Wenying Tian ◽  
Yunan Zhou ◽  
Chuan Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Energy ◽  
Green Water ◽  
Next Generation ◽  
Initial Coulombic Efficiency

Lithium and manganese rich oxides (LMROs) are promising candidates for the next-generation high-energy lithium-ion batteries. However, intrinsic problems associated with low initial Coulombic efficiency and inferior rate capability impede the...

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