scholarly journals Superior Performances of B-doped LiNi0.84Co0.10Mn0.06O2 cathode for advanced LIBs

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Seung-Hwan Lee ◽  
Bong-Soo Jin ◽  
Hyun-Soo Kim
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Layered Structure ◽  
Rate Capability ◽  
Lithium Ion ◽  
Electrochemical Performances ◽  
Active Materials ◽  
Promising Candidate ◽  
Boron Doped ◽  
Cation Disordering

AbstractBoron-doped Ni-rich LiNi0.84Co0.10Mn0.06O2 (B-NCM) cathode material is prepared and its electrochemical performances are investigated. The structural properties indicate that the incorporation of boron leads to highly-ordered layered structure and low cation disordering. All samples have high areal loadings of active materials (approximately 14.6 mg/cm2) that meets the requirement for commercialization. Among them, the 1.0 wt% boron-doped NCM (1.0B-NCM) shows the best electrochemical performances. The 1.0B-NCM delivers a discharge capacity of 205. 3 mAh g−1, cyclability of 93.1% after 50 cycles at 0.5 C and rate capability of 87.5% at 2 C. As a result, we can conclude that the 1.0B-NCM cathode can be regarded as a promising candidate for the next-generation lithium ion batteries.

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.

Preparation and Characterization of High-Voltage Cathode Material LiNi0.5Mn1.5O4 for Lithium Ion Batteries

2019 ◽  
Vol 953 ◽  
pp. 121-126
Author(s):  
Zhe Chen ◽  
Quan Fang Chen ◽  
Sha Ne Zhang ◽  
Guo Dong Xu ◽  
Mao You Lin ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Synthesis Method ◽  
Rate Capability ◽  
Lithium Ion ◽  
Diffusion Path ◽  
High Energy ◽  
High Energy Density ◽  
Charge Discharge

High energy density and rechargeable lithium ion batteries are attracting widely interest in renewable energy fields. The preparation of the high performance materials for electrodes has been regarded as the most challenging and innovative aspect. By utilizing a facile combustion synthesis method, pure nanostructure LiNi0.5Mn1.5O4 cathode material for lithium ion batteries were successfully fabricated. The crystal phase of the samples were characterized by X-Ray Diffraction, and micro-morphology as well as electrochemistry properties were also evaluated using FE-SEM, electrochemical charge-discharge test. The result shows the fabricated LiNi0.5Mn1.5O4 cathode materials had outstanding crystallinity and near-spherical morphologies. That obtained LiNi0.5Mn1.5O4 samples delivered an initial discharge capacity of 137.2 mAhg-1 at the 0.1 C together with excellent cycling stability and rate capability as positive electrodes in a lithium cell. The superior electrochemical performance of the as-prepared samples are owing to nanostructure particles possessing the shorter diffusion path for Li+ transport, and the nanostructure lead to large contact area to effectively improve the charge/discharge properties and the rate property. It is demonstrated that the as-prepared nanostructure LiNi0.5Mn1.5O4 samples have potential as cathode materials of lithium-ion battery for future new energy vehicles.

The encapsulation of MnFe2O4 nanoparticles into the carbon framework with superior rate capability for lithium-ion batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 4445-4451 ◽  
Author(s):  
Weiqin Li ◽  
Cuihua An ◽  
Huinan Guo ◽  
Yan Zhang ◽  
Kai Chen ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Lithium Ion Batteries ◽  
Carbon Coating ◽  
Rate Capability ◽  
Lithium Ion ◽  
Template Method ◽  
Electrochemical Performances ◽  
Carbon Framework ◽  
Mnfe2o4 Nanoparticles

The mesoporous MnFe2O4@C nanorods has been prepared using self-template method. Benefiting from the synergistic effect of carbon coating and mesoporous feature, MnFe2O4@C displays outstanding electrochemical performances for LIBs.

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.

Fixing of highly soluble Br2/Br− in porous carbon as a cathode material for rechargeable lithium ion batteries

2015 ◽  
Vol 3 (5) ◽  
pp. 1879-1883 ◽  
Author(s):  
Y. L. Wang ◽  
X. Wang ◽  
L. Y. Tian ◽  
Y. Y. Sun ◽  
Shi-hai Ye
Keyword(s):  
Carbon Black ◽  
Lithium Ion Batteries ◽  
Porous Carbon ◽  
Solid Phase ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
High Rate Capability ◽  
Active Materials ◽  
Solid Cathode

LiBr, as a representative of high soluble electrochemical active materials, is fixed in nanopores of conductive carbon black (CCB). The Li/LiBr–CCB battery presents excellent high-rate capability for avoiding the slow solid-phase diffusion of Li ions in traditional solid cathode materials.

Effects of morphology on the electrochemical performances of Li3V2(PO4)3 cathode material for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54225-54245 ◽  
Author(s):  
Chuanliang Wei ◽  
Wen He ◽  
Xudong Zhang ◽  
Fengxiu Xu ◽  
Qinze Liu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Electrochemical Performances

The effects of various morphologies on the electrochemical performances of Li3V2(PO4)3 (LVP) were summarized and discussed.

scholarly journals Fabrication of hierarchically porous TiO2 nanofibers by microemulsion electrospinning and their application as anode material for lithium-ion batteries

2017 ◽  
Vol 8 ◽  
pp. 1297-1306 ◽  
Author(s):  
Jin Zhang ◽  
Yibing Cai ◽  
Xuebin Hou ◽  
Xiaofei Song ◽  
Pengfei Lv ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Current Density ◽  
Rapid Development ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Electrochemical Performances ◽  
Tio2 Nanofibers ◽  
Hierarchically Porous ◽  
Paraffin Oil

Titanium dioxide (TiO2) nanofibers have been widely applied in various fields including photocatalysis, energy storage and solar cells due to the advantages of low cost, high abundance and nontoxicity. However, the low conductivity of ions and bulk electrons hinder its rapid development in lithium-ion batteries (LIB). In order to improve the electrochemical performances of TiO2 nanomaterials as anode for LIB, hierarchically porous TiO2 nanofibers with different tetrabutyl titanate (TBT)/paraffin oil ratios were prepared as anode for LIB via a versatile single-nozzle microemulsion electrospinning (ME-ES) method followed by calcining. The experimental results indicated that TiO2 nanofibers with the higher TBT/paraffin oil ratio demonstrated more axially aligned channels and a larger specific surface area. Furthermore, they presented superior lithium-ion storage properties in terms of specific capacity, rate capability and cycling performance compared with solid TiO2 nanofibers for LIB. The initial discharge and charge capacity of porous TiO2 nanofibers with a TBT/paraffin oil ratio of 2.25 reached up to 634.72 and 390.42 mAh·g−1, thus resulting in a coulombic efficiency of 61.51%; and the discharge capacity maintained 264.56 mAh·g−1 after 100 cycles, which was much higher than that of solid TiO2 nanofibers. TiO2 nanofibers with TBT/paraffin oil ratio of 2.25 still obtained a high reversible capacity of 204.53 mAh·g−1 when current density returned back to 40 mA·g−1 after 60 cycles at increasing stepwise current density from 40 mA·g−1 to 800 mA·g−1. Herein, hierarchically porous TiO2 nanofibers have the potential to be applied as anode for lithium-ion batteries in practical applications.

Improved Cycle Stability and Rate Capability of Graphene Oxide Wrapped Tavorite LiFeSO4F as Cathode Material for Lithium-Ion Batteries

2015 ◽  
Vol 7 (25) ◽  
pp. 13972-13979 ◽  
Author(s):  
Zhendong Guo ◽  
Dong Zhang ◽  
Hailong Qiu ◽  
Tong Zhang ◽  
Qiang Fu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycle Stability
Sign in / Sign up

Export Citation Format

Share Document