Researchers report that a bacterial cellulose nanofiber, produced using a high-yield bacterial strain, can function as a single-layer separator in lithium-ion rechargeable batteries, achieving performance benchmarks such as retaining 80% of capacity after 1,000 cycles; the nanofiber's cycle-life is superior to that of multilayer separators in commercial batteries and its safety performance is similar to that of the multilayer separators, with a more sustainable manufacturing process than currently used polyolefin polymers.
Article #19-05527: "A safe and sustainable bacterial cellulose nanofiber separator for lithium rechargeable batteries," by Hyeokjo Gwon et al.
MEDIA CONTACT: Hyun Chul Lee, Samsung Advanced Institute of Technology, Suwon, SOUTH KOREA; e-mail: hc001.lee@samsung.com
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Proceedings of the National Academy of Sciences