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Biofilm Nanofiber-Coated Separators for Dendrite-Free Lithium Metal Anode and Ultrahigh-Rate Lithium Batteries
Nie, Lu; Li, Yingfeng; Chen, Shaojie; Li, Ke; Huang, Yuanqi; Zhu, Yubo; Sun, Zhetao; Zhang, Jicong; He, Yingjie; Cui, Mengkui; Wei, Shicao; Qiu, Feng; Zhong, Chao; Liu, Wei
2019-09-04
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume11Issue:35Pages:32373
SubtypeArticle
AbstractRechargeable batteries that combine high energy density with high power density are highly demanded. However, the wide utilization of lithium metal anode is limited by the uncontrollable dendrite growth, and the conventional lithium-ion batteries (LIBs) commonly suffer from low rate capability. Here, we for the first time develop a biofilm-coated separator for high-energy and high-power batteries. It reveals that the coating of Escherichia coli protein nanofibers can improve electrolyte wettability and lithium transference number and enhance adhesion between separators and electrodes. Thus, lithium dendrite growth is impeded because of the uniform distribution of the Li-ion flux. The modified separator also enables the stable cycling of high-voltage Li vertical bar Li1.2Mn0.6Ni0.2O2 (LNMO) cells at an extremely high rate of 20 C, delivering a high specific capacity of 83.1 mA h g(-1), which exceeds the conventional counterpart. In addition, the modified separator in the Li4Ti5O12 vertical bar LNMO full cell also exhibits a larger capacity of 68.2 mA h g(-1) at 10 C than the uncoated separator of 37.4 mA h g(-1), Such remarkable performances of the modified separators arise from the conformal, adhesive, and endurable coating of biofilm nanofibers. Our work opens up a new opportunity for protein-based biomaterials in practical application of high-energy and high-power batteries.
Keywordbiofilm nanofibers separator lithium dendrite rate capability high-voltage cathode
DOI10.1021/acsami.9b08656
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26851
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Nie, Lu,Li, Yingfeng,Chen, Shaojie,et al. Biofilm Nanofiber-Coated Separators for Dendrite-Free Lithium Metal Anode and Ultrahigh-Rate Lithium Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(35):32373.
APA Nie, Lu.,Li, Yingfeng.,Chen, Shaojie.,Li, Ke.,Huang, Yuanqi.,...&Liu, Wei.(2019).Biofilm Nanofiber-Coated Separators for Dendrite-Free Lithium Metal Anode and Ultrahigh-Rate Lithium Batteries.ACS APPLIED MATERIALS & INTERFACES,11(35),32373.
MLA Nie, Lu,et al."Biofilm Nanofiber-Coated Separators for Dendrite-Free Lithium Metal Anode and Ultrahigh-Rate Lithium Batteries".ACS APPLIED MATERIALS & INTERFACES 11.35(2019):32373.
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