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Oxygen Vacancy-Modulated Zeolitic Li4Ti5O12 Microsphere Anode for Superior Lithium-Ion Battery. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Guo Z, Qin X, Xie Y, Lei C, Wei T, Zhang Y. Advanced NASICON-type LiTi2(PO4)3 as electrode materials for lithium-ion batteries. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Su Z, Liu J, Li M, Zhu Y, Qian S, Weng M, Zheng J, Zhong Y, Pan F, Zhang S. Defect Engineering in Titanium-Based Oxides for Electrochemical Energy Storage Devices. ELECTROCHEM ENERGY R 2020. [DOI: 10.1007/s41918-020-00064-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yao Z, Yin H, Zhou L, Pan G, Wang Y, Xia X, Wu J, Wang X, Tu J. Ti 3+ Self-Doped Li 4 Ti 5 O 12 Anchored on N-Doped Carbon Nanofiber Arrays for Ultrafast Lithium-Ion Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1905296. [PMID: 31725200 DOI: 10.1002/smll.201905296] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/20/2019] [Indexed: 05/08/2023]
Abstract
Omnibearing acceleration of charge/ion transfer in Li4 Ti5 O12 (LTO) electrodes is of great significance to achieve advanced high-rate anodes in lithium-ion batteries. Here, a synergistic combination of hydrogenated LTO nanoparticles (H-LTO) and N-doped carbon fibers (NCFs) prepared by an electrodeposition-atomic layer deposition method is reported. Binder-free conductive NCFs skeletons are used as strong support for H-LTO, in which Ti3+ is self-doped along with oxygen vacancies in LTO lattice to realize enhanced intrinsic conductivity. Positive advantages including large surface area, boosted conductivity, and structural stability are obtained in the designed H-LTO@NCF electrode, which is demonstrated with preeminent high-rate capability (128 mAh g-1 at 50 C) and long cycling life up to 10 000 cycles. The full battery assembled by H-LTO@NCFs anode and LiFePO4 cathode also exhibits outstanding electrochemical performance revealing an encouraging application prospect. This work further demonstrates the effectiveness of self-doping of metal ions on reinforcing the high-rate charge/discharge capability of batteries.
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Affiliation(s)
- Zhujun Yao
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Haoyu Yin
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Linming Zhou
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Guoxiang Pan
- Department of Materials Chemistry, Huzhou University, Huzhou, 313000, China
| | - Yadong Wang
- School of Engineering, Nanyang Polytechnic, 569830, Singapore, Singapore
| | - Xinhui Xia
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianbo Wu
- School of Engineering Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Taizhou, 318000, China
| | - Xiuli Wang
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jiangping Tu
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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Zou S, Zhang Y, Xue C, Wei H, Chen H, Yang G, Nan H, Wang G, Lin H. Electrochemical Characteristics of Pure and Al, Mn-doped Li4Ti5O12 as High-performance Anode Materials for Li-ion Batteries. CHEM LETT 2019. [DOI: 10.1246/cl.190154] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuai Zou
- Qinghai University, Xining 810016, P. R. China
| | | | - Caihong Xue
- Qinghai University, Xining 810016, P. R. China
| | - Haomin Wei
- Qinghai University, Xining 810016, P. R. China
| | | | - Guijun Yang
- Qinghai University, Xining 810016, P. R. China
| | - Hui Nan
- Qinghai University, Xining 810016, P. R. China
| | - Gang Wang
- Qinghai Nationalities University, Xining 810007, P. R. China
| | - Hong Lin
- Tsinghua University, Beijing 100084, P. R. China
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Nan H, Zhang Y, Wei H, Chen H, Xue C, Yang G, Zou S, Wang G, Lin H. Low-cost and environmentally friendly synthesis of an Al3+ and Mn4+ co-doped Li4Ti5O12 composite with carbon quantum dots as an anode for lithium-ion batteries. RSC Adv 2019; 9:22101-22105. [PMID: 35518851 PMCID: PMC9066617 DOI: 10.1039/c9ra03897c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/10/2019] [Indexed: 11/21/2022] Open
Abstract
To increase the specific capacity and conductivity of lithium titanate (LTO), low-cost and environmentally friendly carbon quantum dots (CQDs) were used to composite with Al3+ and Mn4+ co-doped Li4Ti5O12 (LTO-Al/Mn) to improve its electrical properties. The Al3+ and Mn4+ were successfully substituted for Ti located at (16d) sites in the LTO and the CQDs formed a composite with LTO-Al/Mn. The specific capacity of the first cycle at 0.1C increased to 296.5 mA h g−1, and the impedance decreased to 16.8 Ω. The specific capacity maintained 236.0 mA h g−1 after 100 cycles. To increase the specific capacity and conductivity of lithium titanate, low-cost and environmentally friendly carbon quantum dots (CQDs) were used to composite with Al3+ and Mn4+ co-doped Li4Ti5O12 (LTO-Al/Mn) to improve its electrical properties.![]()
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Affiliation(s)
- Hui Nan
- Qinghai University
- Xining 810016
- China
| | | | | | | | | | | | - Shuai Zou
- Qinghai University
- Xining 810016
- China
| | - Gang Wang
- Qinghai Nationalities University
- Xining 810007
- China
| | - Hong Lin
- Tsinghua University
- Beijing 100084
- China
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