Nitrogen-doped carbon-encapsulated SnO2–SnS/graphene sheets with improved anodic performance in lithium ion batteries

A dual-doping approach for N–C@SnO2–SnS/GN with 2D core–shell architecture has been developed. Used as the anode material in LIBs, it delivers a high specific capacity of 1236 mA h g−1 at a current density of 0.1 A g−1 after 110 cycles.

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Polypyrrole Coated Mn–Fe Bimetallic Oxides as High Stability Anode for Lithium-ion Batteries

10.21203/rs.3.rs-223472/v1 ◽

2021 ◽

Author(s):

Yuan Fang ◽

Tengfei Li ◽

Fen Wang ◽

Jianfeng Zhu

Keyword(s):

Metal Oxides ◽

Lithium Ion Batteries ◽

Volume Change ◽

Current Density ◽

Transition Metal Oxides ◽

High Stability ◽

Specific Capacity ◽

Lithium Ion ◽

High Specific Capacity ◽

A Current

Abstract Transition metal oxides as anode materials have received extensive research owing to the high specific capacity. Whereas, the rapid decline of battery capacity caused by volume expansion and low electrical conductivity hinders the practical application of transition metal oxides. This study reported a pseudo-capacitance material polypyrrole coated Fe2O3/Mn2O3 composites material as a high stability anode for lithium-ion batteries. The polypyrrole coating layer can not only serve as a conductive network to improve electrode conductivity but also can be used as a protective buffer layer to suppress the volume change of Fe2O3/Mn2O3 during the charging and discharging process. At the same time, the porous structure of Fe2O3/Mn2O3 composite can not only provide more active sites for lithium storage but also play a certain buffer effect on the volume change of the material. Polypyrrole-coated Fe2O3/Mn2O3 composite as the anode for lithium-ion batteries shows great electrochemical storage performance, with high specific capacity (627 mAh g− 1 at a current density of 1A g− 1), great cycle stability (the capacity not shows obvious signs of attenuation after 500 cycles) and rate performance (432 mAh g− 1 at a current density of 2.0 A g− 1).

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Co0.85Se Particles Encapsulated in the Inner Wall of Nitrogen-Doped Carbon Matrix Nanotube with Rational Interfacial Bonds for High-Performance Lithium-Ion Batteries

Dalton Transactions ◽

10.1039/d1dt01899j ◽

2021 ◽

Author(s):

Rujia Zou ◽

Qi Chen ◽

Shu-Ang He ◽

Qichen Liang ◽

Zhe Cui ◽

...

Keyword(s):

Lithium Ion Batteries ◽

High Performance ◽

Specific Capacity ◽

Lithium Ion ◽

Carbon Matrix ◽

Capacity Fade ◽

High Specific Capacity ◽

Nitrogen Doped ◽

Nitrogen Doped Carbon ◽

Cobalt Selenide

Cobalt selenide based on conversion reaction have been widely applied in lithium-ion batteries (LIBs) due to its high conductivity and high specific capacity. However, effectively suppressing the fast capacity fade...

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Hierarchical CuOx–Co3O4 heterostructure nanowires decorated on 3D porous nitrogen-doped carbon nanofibers as flexible and free-standing anodes for high-performance lithium-ion batteries

Journal of Materials Chemistry A ◽

10.1039/c9ta00275h ◽

2019 ◽

Vol 7 (13) ◽

pp. 7691-7700 ◽

Cited By ~ 39

Author(s):

Huanhui Chen ◽

Jiao He ◽

Yongliang Li ◽

Shan Luo ◽

Lingna Sun ◽

...

Keyword(s):

Lithium Ion Batteries ◽

High Performance ◽

Specific Capacity ◽

Rate Capability ◽

Lithium Ion ◽

Cycling Performance ◽

Free Standing ◽

High Specific Capacity ◽

Nitrogen Doped ◽

Nitrogen Doped Carbon

The free-standing CuOx–Co3O4@PNCNF anode delivers high specific capacity, rate capability, and cycling performance for lithium-ion batteries.

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High Reversible Capacity of Nitrogen-Doped Graphene as an Anode Material for Lithium-Ion Batteries

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1070-1072.459 ◽

2014 ◽

Vol 1070-1072 ◽

pp. 459-464

Author(s):

Chang Jing Fu ◽

Shuang Li ◽

Qian Wang

Keyword(s):

Graphene Oxide ◽

Electron Microscope ◽

Lithium Ion Batteries ◽

Current Density ◽

Lithium Ion ◽

X Ray ◽

Nitrogen Doped ◽

Nitrogen Doped Graphene ◽

Doped Graphene ◽

A Current

Nitrogen-doped graphene (N-rGO) was synthesized in the process of preparation of reduced graphene oxide from the expanded graphite through the improved Hummers’ method. The morphology, structure and composition of nitrogen-doped graphene oxide (GO) and N-rGO were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The nitrogen content of N-rGO was approximately 5 at.%. The electrochemical performances of N-rGO as anode materials for lithium-ion batteries were evaluated in coin-type cells versus metallic lithium. Results showed that the obtained N-rGO exhibited a higher reversible specific capacity of 519 mAh g-1 at a current density of 100 mA⋅g-1 and 207.5 mAh⋅g-1 at a current density of 2000 mA⋅g-1. The excellent cycling stability and high-rate capability of N-rGO as anodes of lithium-ion battery were attributed to the large number of surface defects caused by the nitrogen doping, which facilitates the fast transport of Li-ion and electron on the interface of electrolyte/electrode.

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Electrode Properties of Defect-Introduced Graphenes for Lithium-Ion Batteries

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.582.103 ◽

2013 ◽

Vol 582 ◽

pp. 103-106

Author(s):

Wonk Yun Lee ◽

Shinya Suzuki ◽

Masaru Miyayama

Keyword(s):

Lithium Ion Batteries ◽

Current Density ◽

Lithium Ion ◽

Graphene Sheets ◽

Oxidizing Agent ◽

Lithium Storage ◽

Charge Capacity ◽

Oxidized Graphite ◽

A Current ◽

Graphite Oxides

Electrochemical properties of defect-introduces graphenes for lithium ion batteries were investigated. Graphene sheets (GSs) were prepared from graphite through treating with oxidizing agent followed by rapid thermal exfoliation. Defect concentration was controlled by selecting the number of times of oxidation of graphite. GSs electrodes derived from 1, 2 and 3 times-oxidized graphite oxides exhibited a high charge capacity of 1250, 1790 and 2310 mAh g1, respectively, at the 20th cycle at a current density of 100 mA g1. The enhanced capacity is assumed to be due to additional lithium storage sites such as defects and edges.

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Design of a Nitrogen-Doped, Carbon-Coated Li4Ti5O12Nanocomposite with a Core-Shell Structure and Its Application for High-Rate Lithium-Ion Batteries

ChemPlusChem ◽

10.1002/cplu.201300316 ◽

2013 ◽

Vol 79 (1) ◽

pp. 128-133 ◽

Cited By ~ 28

Author(s):

Hongsen Li ◽

Laifa Shen ◽

Jie Wang ◽

Bing Ding ◽

Ping Nie ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Shell Structure ◽

Lithium Ion ◽

High Rate ◽

Core Shell ◽

Nitrogen Doped ◽

Carbon Coated ◽

Core Shell Structure ◽

Nitrogen Doped Carbon

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High interfacial storage capability of porous NiMn2O4/C hierarchical tremella-like nanostructures as the lithium ion battery anode

Nanoscale ◽

10.1039/c4nr04031g ◽

2015 ◽

Vol 7 (1) ◽

pp. 225-231 ◽

Cited By ~ 116

Author(s):

Wenpei Kang ◽

Yongbing Tang ◽

Wenyue Li ◽

Xia Yang ◽

Hongtao Xue ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Lithium Ion Battery ◽

Current Density ◽

Anode Materials ◽

High Current Density ◽

Specific Capacity ◽

Lithium Ion ◽

High Current ◽

High Specific Capacity ◽

Battery Anode

NiMn2O4/C hierarchical tremella-like nanostructures are facilely prepared and show an ultra-high specific capacity even at high current density as anode materials of lithium ion batteries.

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Cobalt Sulfide Confined in N-Doped Porous Branched Carbon Nanotubes for Lithium-Ion Batteries

Nano-Micro Letters ◽

10.1007/s40820-019-0259-z ◽

2019 ◽

Vol 11 (1) ◽

Cited By ~ 8

Author(s):

Yongsheng Zhou ◽

Yingchun Zhu ◽

Bingshe Xu ◽

Xueji Zhang ◽

Khalid A. Al-Ghanim ◽

...

Keyword(s):

Carbon Nanotubes ◽

Lithium Ion Batteries ◽

Current Density ◽

Large Scale ◽

Coulombic Efficiency ◽

Specific Capacity ◽

Lithium Ion ◽

Cobalt Sulfide ◽

Energy Storage Devices ◽

A Current

Abstract Lithium-ion batteries (LIBs) are considered new generation of large-scale energy-storage devices. However, LIBs suffer from a lack of desirable anode materials with excellent specific capacity and cycling stability. In this work, we design a novel hierarchical structure constructed by encapsulating cobalt sulfide nanowires within nitrogen-doped porous branched carbon nanotubes (NBNTs) for LIBs. The unique hierarchical Co9S8@NBNT electrode displayed a reversible specific capacity of 1310 mAh g−1 at a current density of 0.1 A g−1, and was able to maintain a stable reversible discharge capacity of 1109 mAh g−1 at a current density of 0.5 A g−1 with coulombic efficiency reaching almost 100% for 200 cycles. The excellent rate and cycling capabilities can be ascribed to the hierarchical porosity of the one-dimensional Co9S8@NBNT internetworks, the incorporation of nitrogen doping, and the carbon nanotube confinement of the active cobalt sulfide nanowires offering a proximate electron pathway for the isolated nanoparticles and shielding of the cobalt sulfide nanowires from pulverization over long cycling periods.

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Nitrogen-doped carbon coated SiO nanoparticles Co-modified with nitrogen-doped graphene as a superior anode material for lithium-ion batteries

RSC Advances ◽

10.1039/c4ra06678b ◽

2014 ◽

Vol 4 (67) ◽

pp. 35717-35725 ◽

Cited By ~ 4

Author(s):

Chenfeng Guo ◽

Jingxuan Mao ◽

Dianlong Wang

Keyword(s):

Lithium Ion Batteries ◽

Specific Capacity ◽

Rate Capability ◽

Lithium Ion ◽

Cyclic Life ◽

Nitrogen Doped ◽

Carbon Coated ◽

Nitrogen Doped Graphene ◽

Doped Graphene ◽

Nitrogen Doped Carbon

One great challenge in the development of lithium-ion batteries is to simultaneously achieve superior reversible specific capacity, cyclic life and rate capability.

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