In situ study on the charge/discharge of nanocrystalline Li2C2 as a new cathode material

A novel high-capacity cathode material C4Q/CMK-3 for SIBs shows an initial discharge capacity of 438 mA h g−1 and a capacity retention of 219.2 mA h g−1 after 50 cycles.

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The displacement reaction mechanism of the CuV2O6 nanowire cathode for rechargeable aqueous zinc ion batteries

Dalton Transactions ◽

10.1039/c9dt04226a ◽

2020 ◽

Vol 49 (4) ◽

pp. 1048-1055 ◽

Cited By ~ 5

Author(s):

Xin Yu ◽

Fang Hu ◽

Fuhan Cui ◽

Jun Zhao ◽

Chao Guan ◽

...

Keyword(s):

Reaction Mechanism ◽

Cathode Material ◽

Discharge Capacity ◽

Current Density ◽

Zinc Ion ◽

Cycle Performance ◽

Displacement Reaction ◽

Initial Discharge Capacity ◽

Initial Discharge ◽

A Current

CuV2O6 nanowires as a cathode material for Zn-ion batteries display an initial discharge capacity of 338 mA h g−1 at a current density of 100 mA g−1 and an excellent cycle performance after 1200 cycles at 5 A g−1.

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On Improving the Cycling Stability of P2-Type Na0.67Ni0.33Mn0.67O2 Cathode Material By Ti-Substitution for Na-Ion Batteries

10.1149/osf.io/p426u ◽

2019 ◽

Author(s):

Debanjana Pahari ◽

Sreeraj Puravankara

Keyword(s):

Solid State ◽

Cathode Material ◽

Discharge Capacity ◽

Synthesis Method ◽

Cycling Stability ◽

Solid State Synthesis ◽

Initial Discharge Capacity ◽

Initial Discharge ◽

Ti Substitution ◽

Solid State Synthesis Method

A novel cathode material with Ti-substitution on Ni site, P2-type Na0.67Ni0.25Ti0.08Mn0.67O2 has been synthesized via solid-state synthesis method and characterized electrochemically. Na0.67Ni0.25Ti0.08Mn0.67O2 electrodes have been observed tobe highly reversible at higher voltage ranges. The electrodes have an initial discharge capacity of 125 mAhg-1and can retain around 84% of this capacity (105 mAhg-1) even after 50 cycles at 0.1C when cycled at an uppercut-off voltage of 4.3 V. Na0.67Ni0.25Ti0.08Mn0.67O2 electrodes are believed to suppress the irreversible P2-O2 transformation by diverting the charging reaction through a more reversible P2-OP4transition.

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Fabrication of layered Ti3C2 with an accordion-like structure as a potential cathode material for high performance lithium–sulfur batteries

Journal of Materials Chemistry A ◽

10.1039/c4ta07101h ◽

2015 ◽

Vol 3 (15) ◽

pp. 7870-7876 ◽

Cited By ~ 93

Author(s):

Xiaoqin Zhao ◽

Min Liu ◽

Yong Chen ◽

Bo Hou ◽

Na Zhang ◽

...

Keyword(s):

Cathode Material ◽

Discharge Capacity ◽

High Performance ◽

Coulombic Efficiency ◽

Initial Discharge Capacity ◽

Capacity Retention ◽

Initial Discharge ◽

Lithium Sulfur Batteries ◽

Lithium Sulfur

L-Ti3C2 was prepared by exfoliating Ti3AlC2 in 40% HF. With sulfur-loaded L-Ti3C2 as cathodes, Li–S batteries deliver a high initial discharge capacity of 1291 mA h g−1, an excellent capacity retention of 970 mA h g−1 and coulombic efficiency of 99% after 100 cycles.

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Al-Substituted Li[Li(1/3-x/3)Crx-0.05M0.05Mn(2/3-2x/3)]O2 Cathode Synthesized via Sol-Gel Process

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.124-126.631 ◽

2007 ◽

Vol 124-126 ◽

pp. 631-634 ◽

Cited By ~ 1

Author(s):

I. Ruth Mangani ◽

C.W. Park ◽

Y.K. Yoon ◽

S.H. Kim ◽

J. Kim

Keyword(s):

Citric Acid ◽

Cathode Material ◽

Discharge Capacity ◽

Current Density ◽

Sol Gel ◽

Initial Discharge Capacity ◽

Initial Discharge ◽

Sol Gel Process ◽

A Current ◽

Effect Of Doping

This work reports the effect of doping aluminium in the Li[Li(1/3-x/3)Crx-0.05M0.05Mn(2/3- 2x/3)]O2 (x= 0.2; M= Al), layered cathode material. The cathode material was prepared by citric acid assisted sol-gel process. The sample is characterized by TG/DTA, XRD and FESEM measurements. The Al- doped cathode has delivered an initial discharge capacity of 250 mAh/g with a current density of 0.12 mA/cm2.

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Synthesis and Electrochemical Properties of Cathode Material LiNi0.8Co0.1Mn0.1O2 via Li, Mg, Al Dopping

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1058.302 ◽

2014 ◽

Vol 1058 ◽

pp. 302-306 ◽

Cited By ~ 4

Author(s):

Sha Yuan ◽

Liang Bin Liu ◽

Yan Ping Tang ◽

Jian Hua Wang ◽

Yu Zhong Guo

Keyword(s):

Cathode Material ◽

Electrochemical Properties ◽

Discharge Capacity ◽

High Efficiency ◽

Lithium Ion ◽

Initial Discharge Capacity ◽

Capacity Loss ◽

Initial Discharge ◽

Result Show ◽

Properties Of Materials

Coprecipitation method is adopted to prepare LiNi0.8Co0.1Mn0.1O2, to discuss the factors of affecting electrochemical properties and structure at lithium ion battery cathode material LiNi0.8Co0.1Mn0.1O2. In order to improve the electrochemical properties of materials, LiNi0.8Co0.1Mn0.1O2 materials were modified by doping the cation of Li or Mg or Al. Through the charge-discharge tests in the range of 2.5~4.3V, the result show that doped Mg samples with a discharge capacity and high efficiency as well as the lowest capacity loss, the initial discharge capacity is 205.9mA.h/g, after 20 cycles the discharge capacity reached 142.4mA.h/g.

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One-pot in situ chemical reduction of graphene oxide and recombination of sulphur as a cathode material for a Li–S battery

Journal of Materials Chemistry A ◽

10.1039/c6ta03555h ◽

2016 ◽

Vol 4 (39) ◽

pp. 15140-15147 ◽

Cited By ~ 13

Author(s):

Weiwei Qian ◽

Qiuming Gao ◽

Weiqian Tian ◽

Hang Zhang ◽

Yanli Tan ◽

...

Keyword(s):

Graphene Oxide ◽

Cathode Material ◽

High Current Density ◽

Chemical Reduction ◽

Cyclic Stability ◽

High Current ◽

Initial Discharge Capacity ◽

One Pot ◽

Initial Discharge

The porous rGO/S-3 nanocomposite was preparedviaa facile and eco-friendly one-pot strategy for the chemical reduction of graphene oxide and recombination of sulphur. As the cathode material of the Li–S battery, the rGO/S-3 electrode presents a high initial discharge capacity and high cyclic stability even at a high current density of 10C.

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Significant Improvement of Electrochemical Performance of Ni-rich Cathode Material by Polyethylene Coating

Journal of New Materials for Electrochemical Systems ◽

10.14447/jnmes.v19i3.326 ◽

2016 ◽

Vol 19 (3) ◽

pp. 157-161

Author(s):

Byeong-Chan Jang ◽

Jong-Tae Son

Keyword(s):

Electrochemical Impedance Spectroscopy ◽

Impedance Spectroscopy ◽

Electrochemical Performance ◽

Cathode Material ◽

Discharge Capacity ◽

Electrochemical Impedance ◽

Initial Discharge Capacity ◽

Coated Material ◽

Initial Discharge ◽

Polyethylene Coating

We attempted to use polyethylene (PE) to coat the surface of the cathode material in order to suppress these unnecessary reac-tion, and the results obtained via electrochemical impedance spectroscopy (EIS) suggest the growth of the SEI resistance and charge trans-fer resistance was suppressed in the samples consisting of 0.1 wt% PE-coated Li[(Ni0.6Co0.1Mn0.3)0.36(Ni0.80Co0.15Al0.05)0.64)]O2 (NCS). The initial discharge capacity of the coated material was of 190.56 mAhg-1 at 0.1 C between 3.0 and 4.3 V, and 94.6 % of this capacity was retained after 30 cycles. A notable of effect of the PE coating, is that the resulting exothermic temperature appears at approximately 258.1 °C, which is higher than that for bare NCS at 249.3 °C.

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Electrochemical Performance of V2O5 Nano-Porous Aerogel Film

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.537.165 ◽

2013 ◽

Vol 537 ◽

pp. 165-168 ◽

Cited By ~ 1

Author(s):

Li Feng Zhang ◽

Guang Ming Wu ◽

Guo Hua Gao ◽

Hui Yu Yang

Keyword(s):

Discharge Capacity ◽

Dip Coating ◽

Cyclic Voltammograms ◽

Initial Discharge Capacity ◽

Discharge Current Density ◽

Initial Discharge ◽

A Charge ◽

Good Cycling Stability ◽

Charge Discharge ◽

Aerogel Films

Nano-porous V2O5 aerogel films were prepared by dip-coating vanadium oxide sol onto ITO substrate, using V2O5 powder, Benz alcohol, Isopropanol as precursor materials. The nano pores were characterized by scaning electron microscope (SEM). The electrochemical properties were investigated by chronopotenyiometry(CP) and cyclic voltammograms(CV). Results showed that this porous V2O5 aerogel film exhibited good cycling stability with initial discharge capacity of 143mAh/g and 128 mAh/g after 18 cycles, staying 89.5 % of the initial discharge capacity, at a charge/discharge current density of 200 mA/g.

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