Biofilm Nanofiber-Coated Separators for Dendrite-Free Lithium Metal Anode and Ultrahigh-Rate Lithium Batteries
Nie, Lu1; Li, Yingfeng1,3,4; Chen, Shaojie1; Li, Ke1; Huang, Yuanqi1; Zhu, Yubo1; Sun, Zhetao1; Zhang, Jicong1; He, Yingjie1; Cui, Mengkui1; Wei, Shicao1; Qiu, Feng2; Zhong, Chao1; Liu, Wei1
2019-09-04
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume11Issue:35Pages:32373-32380
Status已发表
DOI10.1021/acsami.9b08656
Abstract

Rechargeable 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
Indexed BySCI ; EI
Funding ProjectChEM, SPST of ShanghaiTech University[EM02161943]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000484831100087
PublisherAMER CHEMICAL SOC
EI KeywordsAdhesives ; Anodes ; Biofilms ; Coatings ; Electrolytes ; Escherichia coli ; Nanofibers ; Proteins ; Separators
WOS KeywordION BATTERIES ; CATHODE MATERIALS ; ESCHERICHIA-COLI ; ENERGY DENSITY ; HIGH-SAFETY ; LI1.2MN0.6NI0.2O2 ; PERFORMANCE ; CURLI ; ELECTROLYTES ; CONDUCTIVITY
Original Document TypeArticle
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://kms.shanghaitech.edu.cn/handle/2MSLDSTB/67973
Collection生命科学与技术学院_本科生
物质科学与技术学院_PI研究组_钟超组
物质科学与技术学院_PI研究组_刘巍组
物质科学与技术学院_硕士生
物质科学与技术学院_本科生
物质科学与技术学院_博士生
Corresponding AuthorZhong, Chao; Liu, Wei
Affiliation1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
2.ShanghaiTech Univ, Sch Life Sci & Technol, Shanghai 201210, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
First Signature AffilicationSchool of Physical Science and Technology
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):32373-32380.
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),32373-32380.
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):32373-32380.
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