The significance of mitigating crosstalk in lithium-ion batteries: a review

Song, Yaqin; Wang, Li; Sheng, Li; Ren, Dongsheng; Liang, Hong; Li, Yiding; Wang, Aiping; Zhang, Hao; Xu, Henry; He, Xiangming

doi:10.1039/d3ee00441d

Cited by 84 publications

(41 citation statements)

References 170 publications

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“…[63,65] However, their detailed TR mechanisms are still confusing and remain disputable. [31] Once TR is detonated, the thermal reactions will proceed fiercely, along with releasing large quantities of energy, resulting in a temperature surge to T 3 within seconds. During the process of temperature rise, electrolyte decomposition, separator melting, and massive internal short circuit are initiated, further releasing a large quantity of energy.…”

Section: Thermal Runaway Mechanism Of Libs With Silicon-based Anodesmentioning

confidence: 99%

“…These fundamental tactics from the materials level constitute enhancing the thermal stability of materials, formulating nonflammable structures, employing "self-poisoned" technique, as well as retarding chemical crosstalk. [24,26,[31][32][33][34] However, a question arises: which perspective is better to apply these tactics to LIBs with siliconbased anodes? Electrolyte design is undoubtedly a good choice.…”

Section: Introductionmentioning

confidence: 99%

“…Electrolyte design is undoubtedly a good choice. [24,26,31,33,34] There is no exaggeration that the electrolyte is of paramount importance for LIBs. [7,10,35] It allows Li ions to transport both charge and mass back and forth while insulating electrons between two electrodes.…”

Section: Introductionmentioning

confidence: 99%

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High‐Safety Lithium‐Ion Batteries with Silicon‐Based Anodes Enabled by Electrolyte Design

Hu,

Sang,

Chen

et al. 2023

Chemistry An Asian Journal

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High‐energy‐density lithium‐ion batteries (LIBs) with high safety have long been pursued for extending the cruise range of electric vehicles. Owing to the high gravimetric capacity, silicon is a promising alternative to the convention graphite anode for high‐energy LIBs. However, it suffers from intrinsic poor interfacial stability with liquid electrolytes, inevitably increasing the risk of thermal runaway and posing serious safety challenges. In this review, we will focus on mitigating thermal runaway of silicon anodes‐based LIBs from the perspective of electrolyte design. First, the thermal runaway mechanism of LIBs is briefly introduced, while the specific thermal failure reactions associated with silicon anodes and electrolytes are discussed in detail. We then summarize the safety countermeasures (e.g., thermally stable solid electrolyte interphase, nonflammable electrolytes, highly stable lithium salts, mitigating electrode crosstalk, and solid‐state electrolytes) enabled by customized electrolyte design to address these triggers of thermal runaway. Finally, the remaining unanswered questions regarding the thermal runaway mechanism are presented, and future directions to achieve intrinsically safe electrolytes for silicon‐based anodes are prospected. This review is expected to provide insightful knowledge for improving the safety of LIBs with silicon‐based anodes.

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Section: Thermal Runaway Mechanism Of Libs With Silicon-based Anodesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High‐Safety Lithium‐Ion Batteries with Silicon‐Based Anodes Enabled by Electrolyte Design

Hu,

Sang,

Chen

et al. 2023

Chemistry An Asian Journal

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“…Both Al(OH) 3 and AlOOH have wide applications in industry. Al(OH) 3 is the most widely used inorganic flame retardant additive, and AlOOH is used in the fields of lithium battery separators, adsorption, and catalysis. , Furthermore, Al(OH) 3 and AlOOH can also be calcined at different temperatures to produce alumina with different crystal structures . Therefore, studying the formation mechanism of hydrolysates to facilitate their reuse is an important research direction for reducing the cost of the Al-H 2 O reaction.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Hydrogen Production Performance and Hydrolysate Formation Mechanism of Al-Based Composites

et al. 2023

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Hydrogen production via Al-H 2 O reaction has potential uses in the fields of space thrusters, engines, and hydrogen fuel cells, where hydrogen production performance of Al-based composites is critical. In this study, low-cost active additives, including g-C 3 N 4 (CN) and NaCl were added to Al−In−Sn (AlIS) alloys by the mechanical ball milling method in order to substitute metal Ga and regulate the hydrogen production activity, as Ga not only increases the cost of Al-based materials but also adversely affects the recycling of products. The results demonstrate that both CN and NaCl additives can effectively enhance hydrogen production performance of AlIS in a single additive system. Further, when 5 wt % of CN and 2.5 wt % of NaCl are concurrently introduced, Al-based composites exhibit the highest hydrogen production efficiency of 94.45% at ambient temperature. The highest hydrogen production rate reaches 475 mL•s −1 •gAl −1 . Even at 2 °C, there is still 86.66% conversion efficiency. The hydrolysates of the Al-H 2 O reaction are composed of Al(OH) 3 and AlOOH, which are primarily influenced by the reaction temperature and the types of Al-based composites. The hydrolysate formation mechanism is analyzed and proposed.

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“…The increase in surface Li from 0 to 3 μm SEI thickness likely occurred because as the SEI layer grew thicker, it regulated proton donor transport to the cathode surface such that Li deposition became favored over direct proton donor reduction. The decrease in surface Li from 4 to 7 μm SEI thickness likely occurred because, when the SEI became too thick, it inhibited solvated Li + transport to the point that other reactions (e.g., electrode crosstalk mechanisms 50 or N 2 reduction) became favorable over Li deposition, and thus, the total surface Li decreased below the peak observed at 3 μm SEI thickness. The fact that the maximum surface Li occurred with IPA at ∼3 μm SEI thickness while the maximum FE occurred with EtOH at ∼4 μm SEI thickness corroborated our previous theories, as the ∼4 μm thick SEI formed with EtOH limited solvated Li + transport just enough to begin favoring N 2 reduction over Li deposition.…”

mentioning

confidence: 99%

Quantifying Influence of the Solid-Electrolyte Interphase in Ammonia Electrosynthesis

McShane,

Niemann,

Benedek

et al. 2023

ACS Energy Lett.

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The solid-electrolyte interphase (SEI) is often invoked to rationalize trends observed during lithium-mediated electrochemical ammonia synthesis (LiMEAS), but quantitative analysis of the SEI constituents is lacking. In this work, we quantified lithium alkoxide SEI species (derived from proton donor reduction) under a variety of electrolyte compositions, using ethanol as the standard proton donor along with five alternative linear and branched alcohol proton donors. With ethanol, we showed that Faradaic efficiency linearly increased from ∼10 to ∼20% as the lithium ethoxide layer thickened. When comparing different proton donors, we found that FE exhibited a "volcano plot" dependence with lithium alkoxide SEI layer thickness, such that FE increased with increasing SEI thickness up to ∼4 μm and decreased with increasing SEI thickness thereafter. We concluded the lithium alkoxide SEI layer limited proton donor and solvated Li + transport, resulting in an optimal SEI thickness at which proton donor, solvated Li + , and N 2 transport were appropriately tuned to maximize NH 3 selectivity.

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The significance of mitigating crosstalk in lithium-ion batteries: a review

Abstract: High-energy lithium-ion batteries are being increasingly applied in the electric vehicle industry but suffer from rapid capacity fading and a high risk of thermal runaway. The crosstalk phenomenon between the...

Cited by 84 publications

References 170 publications

High‐Safety Lithium‐Ion Batteries with Silicon‐Based Anodes Enabled by Electrolyte Design

High‐Safety Lithium‐Ion Batteries with Silicon‐Based Anodes Enabled by Electrolyte Design

Investigation on the Hydrogen Production Performance and Hydrolysate Formation Mechanism of Al-Based Composites

Quantifying Influence of the Solid-Electrolyte Interphase in Ammonia Electrosynthesis

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