Effect of protecting metal oxide (Co3O4) layer on electrochemical properties of spinel Li1.1Mn1.9O4 as a cathode material for lithium battery applications

With the features of good electrical conductivity, and insolubilization in the electrolytic solution, Poly-Peri-Naphthalene (PPN) can be regarded as the cathode material, and there is a certain necessity to study the electrochemical properties of PPN. PPN can be synthesized easily by 3, 4, 9, 10-perylenetetracarboxylic dianhydride (PTCDA), and the related characterizations regarding to PPN is described in this paper. Meanwhile, research on the electrochemical properties of the synthesized PPN under several different temperatures has been carried out, and some basic laws have been found as follows: 1) Under the condition of 600°C≦T≦1100°Csynthesis temperature, the electrical conductivity of PPN is strengthrened with the increased temperature; 2) The discharge capacity of PPN is also increased with the increased synthesis temperature. 3) As a kind of battery cathode active material, the cyclical stability of PPN is excellent. But the capacity is small, aiming at the deficiency, nitrification treatment on the PPN has been carried out, thus the high-capacity PPN is obtained, the first discharge capacity is 342mAhg-1. Therefore, we can safely predict that the future of PPN as a lithium battery cathode material is promising.

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High electrochemical properties of graphene nanoribbons-hybridized manganese dioxide as cathode material for lithium battery

Journal of Nanoparticle Research ◽

10.1007/s11051-015-2908-6 ◽

2015 ◽

Vol 17 (2) ◽

Cited By ~ 1

Author(s):

Xiangyue Huang ◽

Zihan Fan ◽

Cunli Lin ◽

Lina Jia ◽

Baiwei Lin ◽

...

Keyword(s):

Cathode Material ◽

Electrochemical Properties ◽

Manganese Dioxide ◽

Lithium Battery ◽

Graphene Nanoribbons

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Effect of Annealing Treatment on the Electrochemical Properties of Polyoxomolybdate K4[SiMo12O40] as Cathode Material of Lithium Battery

Electrochemistry ◽

10.5796/electrochemistry.82.14 ◽

2014 ◽

Vol 82 (1) ◽

pp. 14-18 ◽

Cited By ~ 6

Author(s):

Erfu NI ◽

Tomohiro KUME ◽

Shinya UEMATSU ◽

Zhen QUAN ◽

Noriyuki SONOYAMA

Keyword(s):

Cathode Material ◽

Electrochemical Properties ◽

Lithium Battery ◽

Annealing Treatment

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Synthesis, Structure and Electrochemical Properties of Lithium Iron Oxide for Lithium Battery Cathode Material

ECS Meeting Abstracts ◽

10.1149/ma2010-03/1/501 ◽

2010 ◽

Keyword(s):

Iron Oxide ◽

Cathode Material ◽

Electrochemical Properties ◽

Lithium Battery

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Enhanced Electrochemical Properties of LiFePO4/C Cathode Material by Metal Oxide Coating

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.347-353.3443 ◽

2011 ◽

Vol 347-353 ◽

pp. 3443-3447 ◽

Cited By ~ 1

Author(s):

Li Wang ◽

Xiao Fei Jie ◽

Guang Chuan Liang ◽

Xiu Qin Ou

Keyword(s):

Metal Oxide ◽

Cathode Material ◽

Electrochemical Properties ◽

Oxide Coating ◽

High Rate ◽

Constant Current ◽

Precipitation Method ◽

Uncoated Sample ◽

Capacity Degradation ◽

Metal Oxide Coating

LiFePO4/C composite cathode material prepared by carbothermal reduction method was coated by metal oxide MnO2, Al2O3, CuO, respectively, by a chemical precipitation method. The effects of metal oxide coating on the structure and electrochemical performance of LiFePO4/C composites were systematically investigated. The structure and morphology of the samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the electrochemical properties were evaluated by constant-current charge/discharge cycling tests. It is found that the coating of metal oxide could greatly improve its high-rate dischargeability and cycling performance. The LiFePO4/C cathode material coated by MnO2 exhibits a specific discharge capacity of 118.5 mAh/g at 3C rate, much higher than the uncoated sample (95.1 mAh/g), with a capacity degradation rate of only 6.3 % after 250 cycles at 3C rate.

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