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Improved Functionality of Lithium‐Ion Batteries Enabled by Atomic Layer Deposition on the Porous Microstructure of Polymer Separators and Coating Electrodes
Abstract
Atomic layer deposition (ALD) of Al 2 O 3 is applied on a polypropylene separator for lithium‐ion batteries. A thin Al 2 O 3 layer (<10 nm) is coated on every surface of the porous polymer microframework without significantly increasing the total separator thickness. The thin Al 2 O 3 ALD coating results in significantly suppressed thermal shrinkage, which may lead to improved safety of the batteries. More importantly, the wettability of Al 2 O 3 ALD‐coated separators in an extremely polar electrolyte based on pure propylene carbonate (PC) solvent is demonstrated, without any decrease in electrochemical performances such as capacity, rate capability, and cycle life. Finally, a LiCoO 2/natural graphite full cell is demonstrated under extremely severe conditions (pure PC‐based electrolyte and high (4.5 V) upper cut‐off potential), which is enabled by the Al 2 O 3 ALD coating on all three components (cathode, anode, and separator).
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Citations
Cited by
Porous membranes in secondary battery technologies
Lu, W., Yuan, Z., Zhao, Y., Zhang, H., Zhang, H., & Li, X. (2017) · Chemical Society Reviews · doi:10.1039/c6cs00823b · Cited by 479
Improving battery safety by early detection of internal shorting with a bifunctional separator
Wu, H., Zhuo, D., Kong, D., & Cui, Y. (2014) · Nature Communications · doi:10.1038/ncomms6193 · Cited by 400
Safer Lithium‐Ion Batteries from the Separator Aspect: Development and Future Perspectives
Liu, Z., Jiang, Y., Hu, Q., Guo, S., Yu, L., Li, Q., Liu, Q., & Hu, X. (2021) · ENERGY & ENVIRONMENTAL MATERIALS · doi:10.1002/eem2.12129 · Cited by 253
Metadata
- Authors
- Jung, Y. S., Cavanagh, A. S., Gedvilas, L., Widjonarko, N. E., Scott, I. D., Lee, S., Kim, G., George, S. M., & Dillon, A. C.
- Venue
- Advanced Energy Materials
- Publisher
- Wiley
- Published
- 2012-04-27
- Volume
- 2
- Issue
- 8
- Pages
- 1022-1027
- ISSN
- 1614-6832 (ISSN-L)
- 1614-6840
- OpenAlex
- W2151315227
- Cited by
- 236
- References
- 0
- FWCI
- 10.38
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Improved Functionality of Lithium‐Ion Batteries Enabled by Atomic Layer Deposition on the Porous Microstructure of Polymer Separators and Coating Electrodes. https://app.cochat.ai/papers/10.1002/aenm.201100750
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- Jung, Y. S., Cavanagh, A. S., Gedvilas, L., Widjonarko, N. E., Scott, I. D., Lee, S., Kim, G., George, S. M., & Dillon, A. C. (2012). Improved Functionality of Lithium‐Ion Batteries Enabled by Atomic Layer Deposition on the Porous Microstructure of Polymer Separators and Coating Electrodes. Advanced Energy Materials. https://doi.org/10.1002/aenm.201100750
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