Magnetron sputtering amorphous carbon coatings on metallic lithium: Towards promising anodes for lithium secondary batteries

Zhang, Y.J.; Liu, X.Y.; Bai, W.Q.; Tang, Hong; Shi, San-Qiang; Wang, X.L.; Gu, C.D.; Tu, Jiangping

doi:10.1016/j.jpowsour.2014.04.147

Cited by 94 publications

(39 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, a uniform polydimethylsiloxane (PDMS) film was also synthesized onto the surface of lithium anode via a sol-gel method (Figure 3). [34] For example, a monolayer of interconnected amorphous hollow carbon nanospheres were developed as an efficient protective films for metallic lithium anode by Cui and co-workers. And then, a series of organic coatings have been developed for protecting metallic lithium anodes and subsequently enhancing the electrochemical performances.…”

Section: Surficial Engineering Of Metallic Lithium Anodes By Inactivementioning

confidence: 99%

A Material Perspective of Rechargeable Metallic Lithium Anodes

Wang

Yang

2018

Advanced Energy Materials

109

View full text Add to dashboard Cite

Rechargeable lithium‐based batteries are long considered as the most promising candidates for application in various electronic devices, electric vehicles, and even electrical grids owing to their ultrahigh energy densities. However, to date, metallic lithium‐based batteries are still far from practical applications due to the low Coulombic efficiency and fast capacity decay of lithium anodes. The poor electrochemical performances of metallic lithium anodes are inherently related to random growth of lithium dendrites and infinite volume charge of lithium anodes. In this review, the failure mechanisms of metallic lithium anodes are summarized and ascribed to the unstable and inhomogeneous solid electrolyte interphase, uneven distributions of electric field, and lithium‐ion flux during the lithium plating processes. Correspondingly, efficient strategies for mitigating these problems, including surficial engineering, electric field, and lithium‐ion flux regulation are discussed from the perspective of anode materials. Finally, an outlook is proposed for the design and fabrication of next‐generation rechargeable metallic lithium anodes that aims to address the intrinsic problems of metallic lithium anodes.

show abstract

Section: Surficial Engineering Of Metallic Lithium Anodes By Inactivementioning

confidence: 99%

A Material Perspective of Rechargeable Metallic Lithium Anodes

Wang

Yang

2018

Advanced Energy Materials

109

View full text Add to dashboard Cite

show abstract

“…Though the working current density can be decreased on the Li/3D conductive matrix leading to growth inhibition of Li dendrites to some extent, the surface of Li is still naked and reactive with electrolyte forming fragile SEI. Another way is to construct buffer layer or ion transfer layer (lithiated graphite, amorphous carbon, glass fiber, oxidized polyacrylonitrile, Al 2 O 3 , MoS 2 , etc.) on the surface of Li metal by physical/chemical coating strategies (e.g., spin‐coating, atomic layer deposition, and magnetron sputtering) .…”

mentioning

confidence: 99%

In Situ Solid Electrolyte Interphase from Spray Quenching on Molten Li: A New Way to Construct High‐Performance Lithium‐Metal Anodes

et al. 2018

View full text Add to dashboard Cite

In response to the growing energy demand, over the past decades, lithium takes the hold of world's attention because it possesses huge energy density due to light weight, low electrode potential (−3.04 V vs standard hydrogen electrode), and large theoretical-specific capacity (3860 mAh g −1 ). [1][2][3][4] Stuck with the stagnation of traditional lithium-ion batteries, the future Uncontrollable growth of Li dendrites and low utilization of active Li severely hinder its practical application. Construction of an artificial solid electrolyte interphase (SEI) onLi is demonstrated as one of the most effective ways to circumvent the above problems. Herein, a novel spray quenching method is developed in situ to fabricate an organic-inorganic composite SEI on Li metal. By spray quenching molten Li in a modified ether-based solution, a homogeneous and dense SEI consisting of organic matrix embedded with inorganic LiF and Li 3 N nanocrystallines (denoted as OIFN) is constructed on Li metal.Arising from high ionic conductivity and strong mechanical stability, the OIFN can not only effectively minimize the corrosion reaction of Li, but also greatly suppresses the dendrite growth. Accordingly, the OIFN-Li anode presents prominent electrochemical performance with an enhanced Coulombic efficiency of 98.15% for 200 cycles and a small hysteresis of <450 mV even at ultrahigh current density up to 10 mA cm −2 . More importantly, during the full cell test with limited Li source, a high utilization of Li up to 40.5% is achieved for the OIFN-Li anode. The work provides a brand-new route to fabricate advanced SEI on alkali metal for high-performance alkali-metal batteries.

show abstract

“…As a result, the well‐designed Si film anode exhibited a greatly enhanced cycle life with an average specific capacity of 806 mAh g −1 after 1000 cycles . Moreover, to maintain the high interfacial Li + ions flux across the film electrode and electrolyte and increase the electrochemical reaction kinetics, the modified layer must be lithium‐ion conductive . Sun and co‐workers calculated the migration energy barriers of lithium ions in Li 2 CO 3 , Li 2 O, and LiF by using a nudged elastic band method, and the results showed that Li 2 O presented the lowest lithium diffusion energy barriers, suggesting that Li 2 O would be a good interfacial modified substance .…”

Section: Introductionmentioning

confidence: 99%

“…modified layer must be lithium-ion conductive. [10] Sun and coworkers calculated the migration energyb arriers of lithium ions in Li 2 CO 3 ,L i 2 O, and LiF by using an udged elastic band method, and the resultss howed that Li 2 Op resented the lowest lithium diffusion energy barriers, suggestingt hat Li 2 O would be agood interfacial modified substance. [11] Lee et al reported that the Li 2 Ol ayer could absorb ap ortion of the total strains and reducet he volumee xpansion of Sn metal, and thus increase the cycling stability of the Sn electrode.…”

Section: Introductionmentioning

confidence: 99%

Ion‐ and Electron‐Conductive Buffering Layer‐Modified Si Film for Use as a High‐Rate Long‐Term Lithium‐Ion Battery Anode

et al. 2018

View full text Add to dashboard Cite

The rational design of electrochemically and mechanically stable Si anodes is of great importance for the development of high energy density lithium‐ion batteries. In this study, patterned Si‐based (Si/ZnO/C) trilayer composite films were synthesized by magnetron sputtering with the assistance of a patterned mask. The electron‐conductive C layer at the top of the composite film is deposited to enhance the interfacial stability between active film and electrolyte. The ion‐ and electron‐conductive Li2O–Zn middle layer can be ingeniously introduced by means of the poor reversed conversion reaction between ZnO and Li+ ions after the first cycle. The resultant Si/Li2O–Zn/C trilayer composite film delivers a high reversible capacity of 1536 mAh g−1 after 800 cycles at a current density of 1.0 A g−1 and a long high‐rate cycling stability (1400 mAh g−1 after 6000 cycles even at a high current density of 10.0 A g−1). Excellent rate capability and improved Coulombic efficiency are also achieved. The influences of the patterned structure and each modified layer on the electrochemical properties are analyzed systematically. This work offers a new and promising direction to enhance the lithium‐storage properties of Si‐based thin‐film anodes.

show abstract

Magnetron sputtering amorphous carbon coatings on metallic lithium: Towards promising anodes for lithium secondary batteries

Cited by 94 publications

References 52 publications

A Material Perspective of Rechargeable Metallic Lithium Anodes

A Material Perspective of Rechargeable Metallic Lithium Anodes

In Situ Solid Electrolyte Interphase from Spray Quenching on Molten Li: A New Way to Construct High‐Performance Lithium‐Metal Anodes

Ion‐ and Electron‐Conductive Buffering Layer‐Modified Si Film for Use as a High‐Rate Long‐Term Lithium‐Ion Battery Anode

Contact Info

Product

Resources

About