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Dendrite-Free Lithium Deposition and Stripping Regulated by Aligned Microchannels for Stable Lithium Metal Batteries
Ni, Shuyan1,2; Sheng, Jinzhi1,2; Zhang, Chang3; Wu, Xin1,2; Yang, Chuang1,2; Pei, Songfeng4; Gao, Runhua1,2; Liu, Wei3; Qiu, Ling1,2; Zhou, Guangmin1,2
Corresponding AuthorQiu, Ling(ling.qiu@sz.tsinghua.edu.cn) ; Zhou, Guangmin(guangminzhou@sz.tsinua.edu.cn)
2022-02-16
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Pages11
AbstractLi metal is the ultimate choice for the anode in next-generation high energy density rechargeable batteries. However, undesired dendrite growth, dead Li formation, and a large volume change of the lithium metal anode lead to severe safety hazards such as short-circuiting, fire, or even explosion. Graphene oxide (GO) in large areas has been prepared as the Li metal host via a continuous centrifugal casting method. Aligned microchannels are then fabricated in it by a simple punching method using 3D printed templates. The GO matrix effectively regulates the lithium plating/stripping behavior while the aligned channels uniformly distributes the Li-ion flux and provides short Li-ion diffusion paths. The Li/ holey GO composite is flexible with a controllable thickness from 50 to 150 mu m, which corresponds to capacities from 9.881 to 27.601 mAh cm(-2). As a result, the anode has a low overpotential of 30 mV after 100 h, a high capacity of approximate to 3538 mAh g(-1) (91.4% of the theoretical capacity), and a superior rate ability of up to 50 C with a LiFePO4 cathode. The holey GO/Li electrode is also paired with other cathodes and used in pouch cells, indicating its suitability for various high-energy battery systems.
Keyword3D printing aligned microchannels graphene oxide Li metal anodes lithium host
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Tsinghua Shenzhen International Graduate School ; Overseas Research Cooperation Fund of Tsinghua Shenzhen International Graduate School, China Postdoctoral Science Foundation
DOI10.1002/adfm.202200682
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2019YFA0705700] ; National Key Research and Development Program of China[2021YFB2500200] ; National Natural Science Foundation of China[52072205] ; Tsinghua Shenzhen International Graduate School ; Overseas Research Cooperation Fund of Tsinghua Shenzhen International Graduate School, China Postdoctoral Science Foundation[2021M691714]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000755655800001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173349
Collection中国科学院金属研究所
Corresponding AuthorQiu, Ling; Zhou, Guangmin
Affiliation1.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China
2.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China
3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Ni, Shuyan,Sheng, Jinzhi,Zhang, Chang,et al. Dendrite-Free Lithium Deposition and Stripping Regulated by Aligned Microchannels for Stable Lithium Metal Batteries[J]. ADVANCED FUNCTIONAL MATERIALS,2022:11.
APA Ni, Shuyan.,Sheng, Jinzhi.,Zhang, Chang.,Wu, Xin.,Yang, Chuang.,...&Zhou, Guangmin.(2022).Dendrite-Free Lithium Deposition and Stripping Regulated by Aligned Microchannels for Stable Lithium Metal Batteries.ADVANCED FUNCTIONAL MATERIALS,11.
MLA Ni, Shuyan,et al."Dendrite-Free Lithium Deposition and Stripping Regulated by Aligned Microchannels for Stable Lithium Metal Batteries".ADVANCED FUNCTIONAL MATERIALS (2022):11.
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