Needle coke (1900 °C) and metallurgical coke (1900 °C) in particular give a capacity of over 200 mAh/g and a cyclic efficiency of nearly 100%, whereas poor performance is exhibited by those pretreated at higher or lower temperatures, e.g., petroleum cokes (500 °C, 2800 °C), pitch coke (500 °C) and needle coke (2800 °C).
4. Conclusions Some cokes, e.g. needle coke (1900) and metal- lurgical coke (1900), can be used as the anode of lithium ion batteries. Graphitized coke (treated at more than 2800) can give a much better cell performance if the passive film is improved properly.
Since the use of a cabonaceous anode removes the problem of dendrite crystal growth and opens great prospects for the practical application of such a high energy density lithium battery, much interest has been focused on this promising field of research.
It is found that for some cokes such as petroleum coke (preheated at 1300 °C), pitch coke (1300 °C), needle coke (1900 °C), metallurgical coke (1900 °C), high capacity and cyclic efficiency are achieved.
Effect of coke orientation on the electrochemical properties of lithium …
3.1 Macro crystalline properties of graphite. In the present study, regular coke and needle coke, which exhibit different crystallinity and orientation, were graphitized to investigate the lithium-ion storage mechanism and anode characteristics depending on the crystallinity change.
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Effects of the oxyfluorination of needle coke-based anode …
Compared with those of pristine needle coke-based lithium-ion batteries, the capacities of the lithium-ion batteries based on oxyfluorinated needle cokes increased by 17.9%, and the cycling stabilities of the modified batteries exceeded 92%. Therefore, introducing oxygen and fluorine functional groups into needle cokes through ...
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Effect of coke orientation on the electrochemical properties of lithium …
In the present study, regular coke and needle coke, which exhibit different crystallinity and orientation, were graphitized to investigate the lithium-ion storage mechanism and anode characteristics depending on the crystallinity change. The regular coke and needle coke samples were named R-1300 and N-1300, respectively, and their graphitized ...
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Electrochemical Performance of Coal-Based Needle Coke Anode …
A lithium-ion battery fabricated using four kinds of needle cokes exhibits a maximum high energy density of 1357mAhg-1. Systematic characterization analysis demonstrates that unique …
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Effect of coke orientation on the electrochemical properties of …
In the present study, regular coke and needle coke, which exhibit different crystallinity and orientation, were graphitized to investigate the lithium-ion storage mechanism …
Learn More
Electrochemical characteristics of needle coke refined by molten ...
Two petroleum cokes heat-treated at different temperatures are used to prepare suitable electrode materials for both lithium- and sodium-ion batteries. A combined mass spectrometry-Fourier transform…
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Improved discharge capacities for lithium-ion batteries containing ...
Needle coke-based lithium-ion batteries with oxygen introduced through ozone treatment showed capacity increases of up to 17.4% and retention rates of 64.25% at 5 C. Therefore, introducing...
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Improved discharge capacities for lithium-ion batteries containing ...
Needle coke-based lithium-ion batteries with oxygen introduced through ozone treatment showed capacity increases of up to 17.4% and retention rates of 64.25% at 5 C. Therefore, introducing oxygen functional groups into needle cokes through ozonation is a …
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Effects of the oxyfluorination of needle coke-based anode …
Compared with those of pristine needle coke-based lithium-ion batteries, the capacities of the lithium-ion batteries based on oxyfluorinated needle cokes increased by …
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Increasing Use in Lithium-ion Batteries, Graphite Electrode, Nuclear ...
As a result, needle coke makers are exploring revenue potential in lithium-ion batteries with extended lifespan. Petroleum-based needle coke is being produced using advanced carbonization and ...
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Sustainable production of graphene from petroleum coke using ...
based on the demand for needle coke for the steel and lithium-ion battery industries; needle coke production can be significantly increased to meet additional demand if needed. Although petroleum ...
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Improved discharge capacities for lithium-ion batteries …
Needle coke-based lithium-ion batteries with oxygen introduced through ozone treatment showed capacity increases of up to 17.4% and retention rates of 64.25% at 5 C. Therefore, introducing...
Learn More
Improved discharge capacities for lithium-ion batteries containing ...
Improved electrochemical properties of lithium-ion batteries prepared using oxygen plasma-treated needle coke-based anode materials. Chung Gi Min C. Lim Seong-shik Myeong Naeun Ha Young-Seak Lee
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Porous activated carbon derived from petroleum coke as a high ...
Lithium-ion capacitors (LICs) are hybrid devices that combine the properties of both high-energy lithium-ion batteries (LIBs) and the high power and cyclability of electric double-layer capacitors ...
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A study of cokes used as anodic materials in lithium ion …
Needle coke (1900 °C) and metallurgical coke (1900 °C) in particular give a capacity of over 200 mAh/g and a cyclic efficiency of nearly 100%, whereas poor performance …
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Considerations for repurposing a fuel-grade coker into a needle …
Article Summary. A comprehensive overview of needle coke production, markets, key operating parameters, feedstock characteristics, and processing steps demonstrates needle coke production opportunities for meeting the demand for synthetic graphite used in lithium-ion batteries in the manufacture of anodes, thereby enabling a pathway for a sustainable future.
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Improved discharge capacities for lithium-ion batteries containing ...
Needle coke-based lithium-ion batteries with oxygen introduced through ozone treatment showed capacity increases of up to 17.4% and retention rates of 64.25% at 5 C. Therefore, introducing oxygen functional groups into needle cokes through ozonation is a viable strategy for producing rapid and high-capacity anode materials.
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Enhanced electrochemical performance of N, F co-doped and …
In this work, we used NF 3 plasma treatments of needle cokes to make superior anode materials with high rates, high stabilities, and competitive discharge capacities. The …
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Electrochemical Performance of Coal-Based Needle Coke Anode for Lithium …
A lithium-ion battery fabricated using four kinds of needle cokes exhibits a maximum high energy density of 1357mAhg-1. Systematic characterization analysis demonstrates that unique characteristics of the green coke including large interlayer spacing, turbostratic and disordered microstructures that are composed of surface defects, nanopores or ...
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Electrochemical Performance of Coal-Based Needle Coke Anode …
A lithium-ion battery fabricated using four kinds of needle cokes exhibits a maximum high energy density of 1357mAhg-1. Systematic characterization analysis …
Learn More
Improved discharge capacities for lithium-ion batteries containing ...
Improved electrochemical properties of lithium-ion batteries prepared using oxygen plasma-treated needle coke-based anode materials. Chung Gi Min C. Lim Seong-shik …
Learn More
A study of cokes used as anodic materials in lithium ion rechargeable ...
Needle coke (1900 °C) and metallurgical coke (1900 °C) in particular give a capacity of over 200 mAh/g and a cyclic efficiency of nearly 100%, whereas poor performance is exhibited by those pretreated at higher or lower temperatures, e.g., petroleum cokes (500 °C, 2800 °C), pitch coke (500 °C) and needle coke (2800 °C).
Learn More
Electrochemical Performance of Coal-Based Needle Coke Anode for Lithium …
A lithium-ion battery fabricated using four kinds of needle cokes exhibits a maximum high energy density of 1357mAhg-1. Systematic characterization analysis demonstrates that unique ...
Learn More
