Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries
Nanostructured TiO2(B) suffers from severe initial irreversible capacity loss (ICL) (≥15 %), hindering its commercialization. While the incorporation of stable Li4Ti5O12 with negligible ICL into TiO2(B) should address the issue, the synthesis of TiO2(B)/Li4Ti5O12 composite remains unexploited becaus...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/139709 |
| _version_ | 1826112428635586560 |
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| author | Ho, Ching-Kit Li, Vanessa Chi-Ying Chan, Kwong-Yu Yung, Hoi Tay, Yee-Yan |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Ho, Ching-Kit Li, Vanessa Chi-Ying Chan, Kwong-Yu Yung, Hoi Tay, Yee-Yan |
| author_sort | Ho, Ching-Kit |
| collection | NTU |
| description | Nanostructured TiO2(B) suffers from severe initial irreversible capacity loss (ICL) (≥15 %), hindering its commercialization. While the incorporation of stable Li4Ti5O12 with negligible ICL into TiO2(B) should address the issue, the synthesis of TiO2(B)/Li4Ti5O12 composite remains unexploited because the conventional synthesis temperature required for the Li4Ti5O12 formation induces growth of anatase TiO2. Here, we achieve the first synthesis of TiO2(B)/Li4Ti5O12 nanocomposite by interfacing high‐energy (020) planes of TiO2(B) nanofibers and Li4Ti5O12 with a small lattice mismatch. As a new class of Li‐ion battery anode, the TiO2(B)/Li4Ti5O12 nanocomposite features a significantly mitigated initial ICL (7 % at 35 mA g−1), stable cycling (93 % capacity retention after 1000 cycles at 1750 mA g−1), and enhanced rate performance (122 mAh g−1 at 2630 mA g−1). This can be mainly attributed to the synergistic effect of the composition and structure resulting in reduced and stabilized SEI formation. Demonstrating the first success of synthesizing a TiO2(B)/Li4Ti5O12 composite, this work provides insights to the effective integration of compounds requiring high synthesis temperature with metastable phases. |
| first_indexed | 2024-10-01T03:06:51Z |
| format | Journal Article |
| id | ntu-10356/139709 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:06:51Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1397092020-06-01T10:13:48Z Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries Ho, Ching-Kit Li, Vanessa Chi-Ying Chan, Kwong-Yu Yung, Hoi Tay, Yee-Yan School of Materials Science & Engineering Facility for Analysis, Characterisation, Testing and Simulation Engineering::Materials Lithium-ion Batteries Li4Ti5O12 Nanostructured TiO2(B) suffers from severe initial irreversible capacity loss (ICL) (≥15 %), hindering its commercialization. While the incorporation of stable Li4Ti5O12 with negligible ICL into TiO2(B) should address the issue, the synthesis of TiO2(B)/Li4Ti5O12 composite remains unexploited because the conventional synthesis temperature required for the Li4Ti5O12 formation induces growth of anatase TiO2. Here, we achieve the first synthesis of TiO2(B)/Li4Ti5O12 nanocomposite by interfacing high‐energy (020) planes of TiO2(B) nanofibers and Li4Ti5O12 with a small lattice mismatch. As a new class of Li‐ion battery anode, the TiO2(B)/Li4Ti5O12 nanocomposite features a significantly mitigated initial ICL (7 % at 35 mA g−1), stable cycling (93 % capacity retention after 1000 cycles at 1750 mA g−1), and enhanced rate performance (122 mAh g−1 at 2630 mA g−1). This can be mainly attributed to the synergistic effect of the composition and structure resulting in reduced and stabilized SEI formation. Demonstrating the first success of synthesizing a TiO2(B)/Li4Ti5O12 composite, this work provides insights to the effective integration of compounds requiring high synthesis temperature with metastable phases. 2020-05-21T04:05:39Z 2020-05-21T04:05:39Z 2018 Journal Article Ho, C.-K., Li, V. C.-Y., Chan, K.-Y., Yung, H., & Tay, Y.-Y. (2019). Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries. Energy Technology, 7(1), 107-112. doi:10.1002/ente.201800413 2194-4288 https://hdl.handle.net/10356/139709 10.1002/ente.201800413 2-s2.0-85057110989 1 7 107 112 en Energy Technology © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. |
| spellingShingle | Engineering::Materials Lithium-ion Batteries Li4Ti5O12 Ho, Ching-Kit Li, Vanessa Chi-Ying Chan, Kwong-Yu Yung, Hoi Tay, Yee-Yan Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries |
| title | Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries |
| title_full | Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries |
| title_fullStr | Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries |
| title_full_unstemmed | Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries |
| title_short | Interfacing TiO2(B) nanofibers with Li4Ti5O12 towards highly reversible and durable TiO2‐based anode for Li − ion batteries |
| title_sort | interfacing tio2 b nanofibers with li4ti5o12 towards highly reversible and durable tio2 based anode for li ion batteries |
| topic | Engineering::Materials Lithium-ion Batteries Li4Ti5O12 |
| url | https://hdl.handle.net/10356/139709 |
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