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Three-Dimensionally Ordered Macroporous Li4Ti5O12: Effect of Wall Structure on Electrochemical Properties
Abstract
Three-dimensionally ordered macroporous (3DOM) Li 4 Ti 5 O 12 was synthesized using poly(methyl methacrylate) colloidal crystal templates and metal organic aqueous precursors. 3DOM structures of various filling fractions and wall thicknesses were synthesized, and the materials evaluated in lithium ion battery cells. The 3DOM architecture was found to markedly improve the rate capability of Li 4 Ti 5 O 12 when the voids of the template were underfilled or perfectly filled. When the template voids were overfilled, the performance of the electrode was similar to that of nonporous Li 4 Ti 5 O 12 . We believe the enhanced rate capability results from the interconnected network of nanometer scale walls, which create short lithium diffusion distances and better contact with the electrolyte. SEM and TEM micrographs reveal that the nature of the wall structure forms low angle grain boundaries in 3DOM Li 4 Ti 5 O 12, which enhances conduction pathways in the particle, especially at high rates.
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Cited by
Enhancing the performances of Li-ion batteries by carbon-coating: present and future
Li, H., & Zhou, H. (2012) · Chem. Commun. · doi:10.1039/c1cc14764a · Cited by 963
Porous electrode materials for lithium-ion batteries–how to prepare them and what makes them special
Vu, A., Qian, Y., & Stein, A. (2012) · Advanced Energy Materials · doi:10.1002/aenm.201200320 · Cited by 719
Mesoporous Li4Ti5O12 Hollow Spheres with Enhanced Lithium Storage Capability
Yu, L., Wu, H. B., & Lou, X. W. (. (2013) · Advanced Materials · doi:10.1002/adma.201204912 · Cited by 373
Design Considerations for Unconventional Electrochemical Energy Storage Architectures
Vlad, A., Singh, N., Galande, C., & Ajayan, P. M. (2015) · Advanced Energy Materials · doi:10.1002/aenm.201402115 · Cited by 346
Wang, R., Wang, L., Liu, R., Li, X., Wu, Y., & Ran, F. (2024) · ACS Nano · doi:10.1021/acsnano.3c08712 · Cited by 336
Metadata
- Authors
- Sorensen, E. M., Barry, S. J., Jung, H.-K., Rondinelli, J. M., Vaughey, J. T., & Poeppelmeier, K. R.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-12-27
- Volume
- 18
- Issue
- 2
- Pages
- 482-489
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W1970358574
- Cited by
- 303
- References
- 0
- FWCI
- 8.90
- Type
- journal article
- Language
- en
- Open access
- closed
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- Sorensen, E. M., Barry, S. J., Jung, H.-K., Rondinelli, J. M., Vaughey, J. T., & Poeppelmeier, K. R. (2006). Three-Dimensionally Ordered Macroporous Li4Ti5O12: Effect of Wall Structure on Electrochemical Properties. Chemistry of Materials. https://doi.org/10.1021/cm052203y
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