Enabling Rapid Charging Lithium Metal Batteries via Surface Acoustic Wave‐Driven Electrolyte Flow

Huang, An; Liu, Haodong; Manor, Ofer; Liu, Ping; Friend, James

doi:10.1002/adma.201907516

Cited by 51 publications

(63 citation statements)

References 44 publications

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“…Besides the utilization of chemical force, [ 97 ] External physical force is another key factor in homogenizing Li ion. [ 98 ] Introducing Lorentz force (Figure 14c) [ 99 ] and ultrasonic waves (Figure 14d) [ 100 ] during the deposition process have been also confirmed to modulate even Li ion distribution. The abovementioned artificial strategies prove to guide the Li ion distribution and therefore prevent the Li dendrite growth.…”

Section: Dendrite Inhibition Strategiesmentioning

confidence: 99%

Review on Li Deposition in Working Batteries: From Nucleation to Early Growth

et al. 2021

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remarkable evolutions with continuous performance improvements, [4] after three decades of continuous research and development, the typical LIBs employ graphite (theoretical capacity of 372 mAh g −1) as the anode. [5] The energy density of LIB progressively approaches its theoretical limit. Therefore, exploring the next generation anode materials, which can break the ceiling of theoretical capacity of LIBs, is essential for the emerging applications to achieve wireless and green world. [6] Li metal is highly recognized as the very promising alternative anode material due to its low electrochemical potential of −3.04 V versus the standard hydrogen electrode and ultrahigh theoretical capacity of 3860 mAh g −1 , [7] which is almost 10 times of commercial graphite anode. Nevertheless, the disordered Li dendrite deposition during charge/discharge process motivates the dramatical fluctuation of the surface of Li anode, thus resulting in the break/ repair of the solid-electrolyte interphase (SEI) with severe phase migrations, electrolyte consumptions and thermal accumulations. [8] The unexpected microstructural Li dendrite can easily loss the electric connection with the bulk Li or current collector and subsequently form "dead Li," causing severe capacity loss. [9] Moreover, Li dendrite deposition not only aggravates battery performance with low Coulombic efficiency (CE) and rapid capacity decay, [10] but also engenders thermal runaway and even serious safety hazards caused by the internal shorting. [11] Therefore, preventing the lithium dendrite growth plays the key role to accomplish the next-generation highenergy-density and safe Li metal batteries (LMBs). [12] How to suppress the Li dendrite growth raises an inescapable question: why Li tends to deposit dendritic morphology? The formation of Li dendrite undergoes two process including Li nucleation and Li growth. [13] The growth process immediately follows nucleation and develops on the surface of nuclei with their incorporation into the structure of the Li metal lattice. Herein the final deposition morphology tightly relies on the Li nucleation and early growth. [14] Figuring out the Li nucleation and early growth is critical to further explore the dendrite inhibition strategies for safe and long-lifespan LMBs. Recently, many insightful and influential models have been proposed to understand the process of Li deposition from nucleation to early growth. [15] Specifically, 1) heterogeneous model describes the heterogeneous nucleation and early growth behavior; 2) surface diffusion model demonstrates Lithium (Li) metal is one of the most promising alternative anode materials of next-generation high-energy-density batteries demanded for advanced energy storage in the coming fourth industrial revolution. Nevertheless, disordered Li deposition easily causes short lifespan and safety concerns and thus severely hinders the practical applications of Li metal batteries. Tremendous efforts are devoted to understanding the mechanism for Li deposition, while the final depositio...

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Section: Dendrite Inhibition Strategiesmentioning

confidence: 99%

Review on Li Deposition in Working Batteries: From Nucleation to Early Growth

et al. 2021

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“…Hence, it is not easy to cause the TR. Therefore, for the lithium metal battery, it is essential to develop a dendrite‐free anode and separator 87‐92 …”

Section: Inducements Of Iscmentioning

confidence: 99%

A review of the internal short circuit mechanism in lithium‐ion batteries: Inducement, detection and prevention

Huang

Liu

et al. 2021

Int J Energy Res

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Summary Internal short circuit (ISC) of lithium‐ion battery is one of the most common reasons for thermal runaway, commonly caused by mechanical abuse, electrical abuse and thermal abuse. This study comprehensively summarizes the inducement, detection and prevention of the ISC. Firstly, the fault tree is utilized to analyze the ISC inducement, including the abuse conditions, improper manufacture and design defects. Secondly, the ISC substitute triggering methods (utilizing mechanical deformation from the outside or utilizing controllable components introduced inside) are summarized considering the randomness of ISC, which have high repeatability. Moreover, these methods can be used to investigate the evolution and the hazard boundary of ISC. The ISC severity is determined by the ISC type, ISC location, ISC area, battery state of charge, capacity, material and structure. There are four types of ISC mode, the danger extends ranking is aluminum‐anode > aluminum‐copper > cathode‐copper > cathode‐anode. The ISC evolution is presented based on the upper summary. Then, the ISC detection methods are reviewed: (1) comparing the measured data with the predicted value from the model; (2) detecting whether the battery has self‐discharge; (3) comparing based on the battery inconsistency and (4) other signals. Finally, the prevention strategies are summarized, which can be used to reduce the ISC risk by blocking electron or lithium‐ion channels in the battery cell.

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“…It has been reported recently that operation of Li-ion batteries responds strongly to an external acoustic driving at 0.1 GHz. 44 The present ability of experimenters to manipulate the electrode-electrolyte interface in Li-ion batteries using sound at these high frequencies also suggests that it might be possible to detect the double layer's selfoscillation directly, by looking for the acoustic signal that it produces.…”

Section: Comparison With Experimentsmentioning

confidence: 99%