In-situ visualization of lithium plating in all-solid-state lithium-metal battery

Li, Quan; Yi, Tiancheng; Wang, Xuelong; Pan, Hongyi; Quan, Baogang; Liang, Tianjiao; Guo, Xiangxin; Yu, Xiqian; Wang, Howard; Huang, Xuejie; Chen, Liquan; Li, Hong

doi:10.1016/j.nanoen.2019.103895

Cited by 128 publications

(89 citation statements)

References 50 publications

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“…The formation of this nano‐sized pore at the interface would lead to further current constriction and accelerate the loss of interface contact, a negative feedback loop known as interface morphological instability, which results in Li dendrite growth or cell failure during subsequent Li plating. [ 12,15,23,24,28,43–45 ]…”

Section: Resultsmentioning

confidence: 99%

“…[ 1–11 ] However, current Li metal anodes with SEs are limited to a low areal current density of less than 1 mA cm −2 and operate for only a small number of cycles, due to the cell failure of short circuiting and lithium dendrite penetration through the SE. [ 12–15 ] A key strategy to improve the performance of Li metal anode in solid‐state batteries is to engineer the Li–SE interface by pre‐treating the SE surfaces [ 9,19,20 ] and adding interfacial coating layers to achieve good interfacial contact and low interfacial resistance. [ 16–18 ] In addition, applying a stacking pressure of a few MPa or more helps to maintain good interfacial contact during the cycling to increase current density and cycle life.…”

Section: Introductionmentioning

confidence: 99%

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Interfacial Atomistic Mechanisms of Lithium Metal Stripping and Plating in Solid‐State Batteries

et al. 2021

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All‐solid‐state batteries based on a Li metal anode represent a promising next‐generation energy storage system, but are currently limited by low current density and short cycle life. Further research to improve the Li metal anode is impeded by the lack of understanding in its failure mechanisms at lithium–solid interfaces, in particular, the fundamental atomistic processes responsible for interface failure. Here, using large‐scale molecular dynamics simulations, the first atomistic modeling study of lithium stripping and plating on a solid electrolyte is performed by explicitly considering key fundamental atomistic processes and interface atomistic structures. In the simulations, the interface failure initiated with the formation of nano‐sized pores, and how interface structures, lithium diffusion, adhesion energy, and applied pressure affect interface failure during Li cycling are observed. By systematically varying the parameters of solid‐state lithium cells in the simulations, the parameter space of applied pressures and interfacial adhesion energies that inhibit interface failure during cycling are mapped to guide selection of solid‐state cells. This study establishes the atomistic modeling for Li stripping and plating, and predicts optimal solid interfaces and new strategies for the future research and development of solid‐state Li‐metal batteries.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interfacial Atomistic Mechanisms of Lithium Metal Stripping and Plating in Solid‐State Batteries

et al. 2021

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“…The optimization of liquid electrolytes by adjusting the composition can increase the ionic conductivity, induce the passivation film in-situ formed on electrodes and greatly improve the cycling stability of the Li metal anode [138][139][140][141] . However, as the descrip-tions above, the liquid electrolytes utilizing lots of organic solvents which are flammable cause tremendous safety risks in LMBs.…”

Section: Solid-state Lmbsmentioning

confidence: 99%

Lithium metal anodes: Present and future

Wang

Cui

Chu

et al. 2020

Journal of Energy Chemistry

388

168

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“…Various measurements were recently adopted to unveil Li metal electrochemistry in accordance with the purposes. [5,[230][231][232][233][234] There are two streams in characterization methods of Li metal batteries according to the point when it is measured as follow; (i) the in situ method that directly analyzes a battery under a flowing current; and (ii) the ex situ method that analyzes an electrode or others extracted from the battery after cycling. Each of both ways has its pros and cons distinctly.…”

Section: Interphase Characterizationmentioning

confidence: 99%

“…On the other hand, neutron depth profiling (NDP) allows the capture of the reaction of thermal neutrons of 6 Li atoms forming 4 He and 3 H atoms, well-defined initial energies, and serves as a non-invasive operando measurement technique that enables the monitoring of Li growth dynamics and SEI formation kinetics as a function of depth in an electrode. [232,253] A detector collects energy loss from the formed 4 He and 3 H atoms and calculates the depth of Li atoms and current density through Li amounts at that depth. However, when observing Li deposition/dissolution cycles on a Cu current collector, the 4 He atoms cannot penetrate through a Cu electrode.…”

Section: Neutron Depth Profilingmentioning

confidence: 99%

Lithium Metal Interface Modification for High‐Energy Batteries: Approaches and Characterization

Lee

Song

Cho

et al. 2020

Batteries & Supercaps

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Rechargeable batteries have been a profoundly greater part of our lives than we could have ever imagined. The rechargeable Li‐ion batteries (LIBs) that have been developed for transport systems even put fossil fuels in the corner. However, state‐of‐the‐art Li‐ion batteries with graphite anodes are now approaching their theoretical specific energy limits, so they cannot meet the increasing demands of a range of portable electronics and large‐scale energy storage systems. Li metal is one of the most promising anode materials that could break through the energy density bottleneck of Li‐ion batteries due to its ultrahigh specific capacity and very low potential compared to other anode materials. Nonetheless, the direct use of Li metal in commercial battery systems has been hindered due to significant obstacles associated with it such as safety issues, corrosion from chemical reactions that occur inside the battery, or poor cycling performance. The fundamental reason for these problems is the dendritic growth of Li‐ions on the Li metal anode during cycling, as a result of the interfacial phenomena of Li metal and electrolytes. Modification of the Li metal interface with an electrolyte presents an efficient solution to solve these problems. In this review, the current challenges facing the development of Li metal anodes are presented in detail. The most recent advances in Li metal anodes using a controlled interface between the Li metal surface and an electrolyte are highlighted and an introduction on the synthesis and production methods for the application of high‐energy‐density battery systems such as Li‐oxygen (Li−O2), Li‐sulfur (Li−S), and Li metal batteries with high‐energy density cathodes is presented. Furthermore, the recent developments in the in situ/operando analysis tools adopted for the investigation of Li metal anodes such as the structural and chemical changes, dynamic properties, and solid–electrolyte interface (SEI) layer properties are described and summarized. Finally, some suggestions are given in the direction of the development of Li metal with artificial surface layers for use in future high‐energy batteries.

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In-situ visualization of lithium plating in all-solid-state lithium-metal battery

Cited by 128 publications

References 50 publications

Interfacial Atomistic Mechanisms of Lithium Metal Stripping and Plating in Solid‐State Batteries

Interfacial Atomistic Mechanisms of Lithium Metal Stripping and Plating in Solid‐State Batteries

Lithium metal anodes: Present and future

Lithium Metal Interface Modification for High‐Energy Batteries: Approaches and Characterization

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