In situ designing an implanted hetero-interface of high adsorption energy in composite lithium anode towards high−rate lithium metal batteries

Duan，Qiange1,2; Liu，Yingming2; Lang，Jihui1; Ma，Changjing2; Li，Yongli3; Wang，Jun4; Ning，De2; Zhong，Guohua2; Yang，Chunlei2; Wu，Wei2

2024-06-01

10.1016/j.ensm.2024.103504

Energy Storage Materials   影响因子和分区

2405-8297

Lithium metal is considered as the ultimate anode material for next-generation Li based battery chemistries. The constituted lithium metal batteries (LMBs) specialize in high energy density, but the inherent dendritic lithium growth as well as the serious proliferation of native solid electrolyte interphase (SEI) have been impeding their practical application, in particular under the high-rate conditions of a more concentrated Li flux. Herein, we report a composite anode design, in which LiF/LiC as the products of the in situ spontaneous reductive defluorination between Li and poly(tetrafluoroethylene) (PTFE) are uniformly implanted in bulk metallic Li via facile mechanical kneading. The macroscopical composite anode creates a dispersion of lithiophilic nanodomains microscopically in bulk. The built-in LiF/LiC doping of high Li adsorption energy improves the affinity towards Li flux and avoids the Li-adhesion-induced Li aggregation. The construction facilitates a dense while large granular plating as well as the generation of a thin, inorganic-rich SEI to synergistically ensure a dendrite-free Li deposition behavior. The improved plating reversibility and cycling stability are verified in forms of both symmetric cell under harsh conditions up to 30 mA cm@30 mAh cm and high-areal-capacity Li||LiFeO full cell for 500 cycles at 3 C. This not only expands the state-of-the-art LMBs under high-loading and power-intensive scenarios, but also preliminarily evidences its scalable and industry-adaptable potential.

Composite anode Dendrite Fast charging Lithium metal batteries Solid electrolyte interphase

SCI ; EI

英语

其他

2-s2.0-85193815793

Scopus

1.Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education,Jilin Normal University,Siping,136000,China
2.Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen,518055,China
3.Key Laboratory of Power Station Energy Transfer Conversion and System,North China Electric Power University,Beijing,102206,China
4.School of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen,518055,China

Duan，Qiange,Liu，Yingming,Lang，Jihui,et al. In situ designing an implanted hetero-interface of high adsorption energy in composite lithium anode towards high−rate lithium metal batteries[J]. Energy Storage Materials,2024,70.

Duan，Qiange.,Liu，Yingming.,Lang，Jihui.,Ma，Changjing.,Li，Yongli.,...&Wu，Wei.(2024).In situ designing an implanted hetero-interface of high adsorption energy in composite lithium anode towards high−rate lithium metal batteries.Energy Storage Materials,70.

Duan，Qiange,et al."In situ designing an implanted hetero-interface of high adsorption energy in composite lithium anode towards high−rate lithium metal batteries".Energy Storage Materials 70(2024).