Nitridation Br-doped Li4Ti5O12 anode for high rate lithium ion batteries

Jiaqing Wang; Zhenzhong Yang; Weihan Li; Xiongwu Zhong; Lin Gu; Yan Yu

doi:10.1016/j.jpowsour.2014.05.025

Nitridation Br-doped Li₄Ti₅O₁₂ anode for high rate lithium ion batteries

Jiaqing Wang
, Zhenzhong Yang
, Weihan Li
, Xiongwu Zhong
, Lin Gu
, Yan Yu^*

^*Corresponding author for this work

University of Science and Technology of China
CAS - Institute of Physics

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

68 Scopus citations

Abstract

Br-doping Li₄Ti₅O₁₂ (Li₄Ti ₅O_11.7Br_0.3) is fabricated by conventional solid state method and shows enhanced cycling performance compared with pristine Li₄Ti₅O₁₂. After thermal nitridation for 90 min in NH₃, the Li₄Ti₅O_11.7Br _0.3 electrode exhibits better rate capability and excellent cycling performance. It delivers a reversible capacity of 138 mAh g^-1 and 104 mAh g^-1 after 100 cycles at 10C and 20C, respectively, which is approximately four and seven times higher than those of pristine Li ₄Ti₅O₁₂ at the same current rates. This work indicates the feasibility of improving cycling performance and rate capabilities of Li₄Ti₅O₁₂ through controlling both surface termination and bulk doping procedures.

Original language	English
Pages (from-to)	323-331
Number of pages	9
Journal	Journal of Power Sources
Volume	266
DOIs	https://doi.org/10.1016/j.jpowsour.2014.05.025
State	Published - 15 Nov 2014
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Anode
Li-ion battery
Nitridation

Access to Document

10.1016/j.jpowsour.2014.05.025

Cite this

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title = "Nitridation Br-doped Li4Ti5O12 anode for high rate lithium ion batteries",

abstract = "Br-doping Li4Ti5O12 (Li4Ti 5O11.7Br0.3) is fabricated by conventional solid state method and shows enhanced cycling performance compared with pristine Li4Ti5O12. After thermal nitridation for 90 min in NH3, the Li4Ti5O11.7Br 0.3 electrode exhibits better rate capability and excellent cycling performance. It delivers a reversible capacity of 138 mAh g-1 and 104 mAh g-1 after 100 cycles at 10C and 20C, respectively, which is approximately four and seven times higher than those of pristine Li 4Ti5O12 at the same current rates. This work indicates the feasibility of improving cycling performance and rate capabilities of Li4Ti5O12 through controlling both surface termination and bulk doping procedures.",

keywords = "Anode, Li-ion battery, Nitridation",

author = "Jiaqing Wang and Zhenzhong Yang and Weihan Li and Xiongwu Zhong and Lin Gu and Yan Yu",

year = "2014",

month = nov,

day = "15",

doi = "10.1016/j.jpowsour.2014.05.025",

language = "英语",

volume = "266",

pages = "323--331",

journal = "Journal of Power Sources",

issn = "0378-7753",

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}

TY - JOUR

T1 - Nitridation Br-doped Li4Ti5O12 anode for high rate lithium ion batteries

AU - Wang, Jiaqing

AU - Yang, Zhenzhong

AU - Li, Weihan

AU - Zhong, Xiongwu

AU - Gu, Lin

AU - Yu, Yan

PY - 2014/11/15

Y1 - 2014/11/15

N2 - Br-doping Li4Ti5O12 (Li4Ti 5O11.7Br0.3) is fabricated by conventional solid state method and shows enhanced cycling performance compared with pristine Li4Ti5O12. After thermal nitridation for 90 min in NH3, the Li4Ti5O11.7Br 0.3 electrode exhibits better rate capability and excellent cycling performance. It delivers a reversible capacity of 138 mAh g-1 and 104 mAh g-1 after 100 cycles at 10C and 20C, respectively, which is approximately four and seven times higher than those of pristine Li 4Ti5O12 at the same current rates. This work indicates the feasibility of improving cycling performance and rate capabilities of Li4Ti5O12 through controlling both surface termination and bulk doping procedures.

AB - Br-doping Li4Ti5O12 (Li4Ti 5O11.7Br0.3) is fabricated by conventional solid state method and shows enhanced cycling performance compared with pristine Li4Ti5O12. After thermal nitridation for 90 min in NH3, the Li4Ti5O11.7Br 0.3 electrode exhibits better rate capability and excellent cycling performance. It delivers a reversible capacity of 138 mAh g-1 and 104 mAh g-1 after 100 cycles at 10C and 20C, respectively, which is approximately four and seven times higher than those of pristine Li 4Ti5O12 at the same current rates. This work indicates the feasibility of improving cycling performance and rate capabilities of Li4Ti5O12 through controlling both surface termination and bulk doping procedures.

KW - Anode

KW - Li-ion battery

KW - Nitridation

UR - https://www.scopus.com/pages/publications/84901755530

U2 - 10.1016/j.jpowsour.2014.05.025

DO - 10.1016/j.jpowsour.2014.05.025

M3 - 文章

AN - SCOPUS:84901755530

SN - 0378-7753

VL - 266

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EP - 331

JO - Journal of Power Sources

JF - Journal of Power Sources

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