Pitch modified hard carbons as negative materials for lithium-ion batteries

Jie Wang; Jin Long Liu; Yong Gang Wang; Cong Xiao Wang; Yong Yao Xia

doi:10.1016/j.electacta.2012.03.099

Pitch modified hard carbons as negative materials for lithium-ion batteries

Jie Wang, Jin Long Liu, Yong Gang Wang, Cong Xiao Wang^*, Yong Yao Xia

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

A series of pitch modified hard carbons was prepared using coal-tar pitch and phenolic resin as carbon precursors. The effects of the amount of the soft carbon from pitch precursor, varying from 0 wt% to 40 wt%, and heat-treatment temperature in the range from 900°C to 1800°C, on their electrochemical performance were systemically studied, including the reversible capacity, coulombic efficiency in the first cycle, the rate capability and cycling stability. Under the optimal condition, the carbon material obtained at 1200°C with 30 wt% soft carbon as negative material for lithium-ion batteries exhibits a reversible capacity of about 290 mAh g ^-1 at a constant current density of 0.5 mA cm ^-2 with excellent rate capability and cycling stability.

Original language	English
Pages (from-to)	1-7
Number of pages	7
Journal	Electrochimica Acta
Volume	74
DOIs	https://doi.org/10.1016/j.electacta.2012.03.099
Publication status	Published - 2012 Jul 15
Externally published	Yes

Keywords

Anode
Hard carbon
Intercalation
Lithium-ion batteries
Negative material

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.electacta.2012.03.099

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@article{f6f0d94d19684c13bc238ee3e6607aba,

title = "Pitch modified hard carbons as negative materials for lithium-ion batteries",

abstract = "A series of pitch modified hard carbons was prepared using coal-tar pitch and phenolic resin as carbon precursors. The effects of the amount of the soft carbon from pitch precursor, varying from 0 wt% to 40 wt%, and heat-treatment temperature in the range from 900°C to 1800°C, on their electrochemical performance were systemically studied, including the reversible capacity, coulombic efficiency in the first cycle, the rate capability and cycling stability. Under the optimal condition, the carbon material obtained at 1200°C with 30 wt% soft carbon as negative material for lithium-ion batteries exhibits a reversible capacity of about 290 mAh g -1 at a constant current density of 0.5 mA cm -2 with excellent rate capability and cycling stability.",

keywords = "Anode, Hard carbon, Intercalation, Lithium-ion batteries, Negative material",

author = "Jie Wang and Liu, {Jin Long} and Wang, {Yong Gang} and Wang, {Cong Xiao} and Xia, {Yong Yao}",

note = "Funding Information: This work was partially supported by the National Natural Science Foundation of China (No. 20633040 , 20925312 ), the State Key Basic Research Program of PRC ( 2011CB935903 ), and Shanghai Science & Technology Committee ( 10JC1401500 , 08DZ2270500 ).",

year = "2012",

month = jul,

day = "15",

doi = "10.1016/j.electacta.2012.03.099",

language = "English",

volume = "74",

pages = "1--7",

journal = "Electrochimica Acta",

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publisher = "Elsevier Limited",

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T1 - Pitch modified hard carbons as negative materials for lithium-ion batteries

AU - Wang, Jie

AU - Liu, Jin Long

AU - Wang, Yong Gang

AU - Wang, Cong Xiao

AU - Xia, Yong Yao

N1 - Funding Information: This work was partially supported by the National Natural Science Foundation of China (No. 20633040 , 20925312 ), the State Key Basic Research Program of PRC ( 2011CB935903 ), and Shanghai Science & Technology Committee ( 10JC1401500 , 08DZ2270500 ).

PY - 2012/7/15

Y1 - 2012/7/15

N2 - A series of pitch modified hard carbons was prepared using coal-tar pitch and phenolic resin as carbon precursors. The effects of the amount of the soft carbon from pitch precursor, varying from 0 wt% to 40 wt%, and heat-treatment temperature in the range from 900°C to 1800°C, on their electrochemical performance were systemically studied, including the reversible capacity, coulombic efficiency in the first cycle, the rate capability and cycling stability. Under the optimal condition, the carbon material obtained at 1200°C with 30 wt% soft carbon as negative material for lithium-ion batteries exhibits a reversible capacity of about 290 mAh g -1 at a constant current density of 0.5 mA cm -2 with excellent rate capability and cycling stability.

AB - A series of pitch modified hard carbons was prepared using coal-tar pitch and phenolic resin as carbon precursors. The effects of the amount of the soft carbon from pitch precursor, varying from 0 wt% to 40 wt%, and heat-treatment temperature in the range from 900°C to 1800°C, on their electrochemical performance were systemically studied, including the reversible capacity, coulombic efficiency in the first cycle, the rate capability and cycling stability. Under the optimal condition, the carbon material obtained at 1200°C with 30 wt% soft carbon as negative material for lithium-ion batteries exhibits a reversible capacity of about 290 mAh g -1 at a constant current density of 0.5 mA cm -2 with excellent rate capability and cycling stability.

KW - Anode

KW - Hard carbon

KW - Intercalation

KW - Lithium-ion batteries

KW - Negative material

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U2 - 10.1016/j.electacta.2012.03.099

DO - 10.1016/j.electacta.2012.03.099

M3 - Article

AN - SCOPUS:84861573001

SN - 0013-4686

VL - 74

SP - 1

EP - 7

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Pitch modified hard carbons as negative materials for lithium-ion batteries

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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