Boosted lithium storage cycling stability of TiP2 by in-situ partial self-decomposition and nano-spatial confinement
作者:Zhou, FC (Zhou, Fengchen)[ 1 ] ; Yang, XS (Yang, Xu-Sheng)[ 3,4 ] ; Liu, JW (Liu, Jiangwen)[ 1 ] ; Liu, J (Liu, Jun)[ 1 ] ; Hu, RZ (Hu, Renzong)[ 1 ] ; Ouyang, LZ (Ouyang, Liuzhang)[ 1,2 ] ; Zhu, M (Zhu, Min)[ 1 ]
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JOURNAL OF POWER SOURCES
卷: 485
文献号: 229337
DOI: 10.1016/j.jpowsour.2020.229337
出版年: FEB 15 2021
文献类型:Article
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摘要
Titanium phosphide (TiP2) is particularly interesting due to its ability to form the stable Li-Ti-P ternary phase. However, TiP2 faces the limitations in cyclic stability due to the volume change occurred by the destruction/ recovery of the long-range cubic order Li-Ti-P phase, and unable to deliver high capacity. In this work, we propose the in-situ formation of electrochemically inactive TiP and phosphorus via partial decomposition of TiP2 by ball milling process, achieving a multi-phase TiP2-TiP-P-C composite. On one hand, the decomposition-formed TiP effectively relieve the stress caused by the formation of LixTiP4 and LiP3. On the other hand, another decomposition-formed small-sized phosphorus significantly reduce its volume change during the lithiation/delithiation cycles for the overall capacity. Accordingly, the synthesized multi-phase TiP2-TiP-P-C with the above cooperative effects delivers a high capacity of 836.3 mAh g(-1) at 0.2 A g(-1) as high-performance Lithium-ion battery anode. In addition, a notable capacity retention of 81.4% is also achieved after 1000 cycles at 5 A g(-1). Furthermore, when paired with LiFePO4 cathode in a full cell, the excellent specific capacity, cycling and rate performance can also be obtained. The rational design of TiP2-TiP-P-C will be beneficial towards the future development of metal-phosphide-phosphorous composite as LIB anode.
关键词
作者关键词:TiP2; TiP; In-situ formation; Phase boundary; Lithium-ion battery
KeyWords Plus:FEP-AT-C; SODIUM-ION; ANODE MATERIALS; RED PHOSPHORUS; PERFORMANCE; CARBON; NANOCOMPOSITE; NANOPARTICLES; COMPOSITE; ULTRAFAST
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China.
Hong Kong Polytechnic University Hong Kong Polytech Univ, Adv Mfg Technol Res Ctr, Dept Ind & Syst Engn, Hung Hom,Kowloon, Hong Kong, Peoples R China.
通讯作者地址: Ouyang, LZ (通讯作者)
显示更多 South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China.
通讯作者地址: Yang, XS (通讯作者)
显示更多 Hong Kong Polytech Univ, Adv Mfg Technol Res Ctr, Dept Ind & Syst Engn, Hung Hom,Kowloon, Hong Kong, Peoples R China.
地址:
显示更多 [ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China
[ 2 ] China Australia Joint Lab Energy Environm Mat, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Peoples R China
显示更多 [ 3 ] Hong Kong Polytech Univ, Adv Mfg Technol Res Ctr, Dept Ind & Syst Engn, Hung Hom,Kowloon, Hong Kong, Peoples R China
显示更多 [ 4 ] Hong Kong Polytech Univ, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
电子邮件地址:xsyang@polyu.edu.hk; meouyang@scut.edu.cn
基金资助致谢
基金资助机构显示详情 授权号
National Natural Science Foundation of China (NSFC)
NSFC51621001
National Natural Science Foundation of China (NSFC)
51771075
51971187
National Natural Science Foundation of Guangdong Province
2016A030312011
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出版商
ELSEVIER, RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry; Electrochemistry; Energy & Fuels; Materials Science
Web of Science 类别:Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary