Electrochemical behavior of SiOx anodes with variation of oxygen ratio for Li-ion batteries

Suh, Sungsoo; Yoon, Woo Young; Kim, D. H.; Kwon, Soonchul; Kim, J. H.; Kim, Y. U.; Jeong, Chang-Ho; Chan, Yen-Hsin; Sun, Kai; Lee, J. K.

doi:10.1016/j.electacta.2014.08.104

Cited by 48 publications

(14 citation statements)

References 10 publications

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“…Fore xample,S uh et al reported that the optimal amount of oxygen in granulated SiO x particles ( Figure 6a)is1 .06. [53] At ah igh areal capacity (ca. 3mAh cm À2 )a nd ah igh ratio of active materials (90 wt %), blending 3wt% of SiO 1.06 with graphite resulted in an initial specific capacity of 397 mAh g À1 and ac apacity retention of 76 %a fter 200 cycles in full-cell configuration (Figure 6b).…”

Section: Graphite-blended Si Anodesmentioning

confidence: 99%

“…In summary,i ndustrially developed Si materials,s uch as SiO x , [21,53] Si-metal alloys, [3b,20c, 22a,45a] and porous Si, [22c, 50] have mostly demonstrated their commercial viability in graphiteblended anodes.G raphite not only improves the electro- chemical stability but also results in various Si anodes being applicable to conventional battery manufacturing processes. We believe the evaluation methods for graphite-blended Si anodes,w here the parameters for volumetric energy density are taken into account, will play important roles for the comparison of the rational performance and the feasibility study of emerging Si anodes for high-energy LIBs.…”

Section: Graphite-blended Si Anodesmentioning

confidence: 99%

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Integration of Graphite and Silicon Anodes for the Commercialization of High‐Energy Lithium‐Ion Batteries

et al. 2019

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Silicon is considered a most promising anode material for overcoming the theoretical capacity limit of carbonaceous anodes. The use of nanomethods has led to significant progress being made with Si anodes to address the severe volume change during (de)lithiation. However, less progress has been made in the practical application of Si anodes in commercial lithium‐ion batteries (LIBs). The drastic increase in the energy demands of diverse industries has led to the co‐utilization of Si and graphite resurfacing as a commercially viable method for realizing high energy. Herein, we highlight the necessity for the co‐utilization of graphite and Si for commercialization and discuss the development of graphite/Si anodes. Representative Si anodes used in graphite‐blended electrodes are covered and a variety of strategies for building graphite/Si composites are organized according to their synthetic methods. The criteria for the co‐utilization of graphite and Si are systematically presented. Finally, we provide suggestions for the commercialization of graphite/Si combinations.

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Section: Graphite-blended Si Anodesmentioning

confidence: 99%

Section: Graphite-blended Si Anodesmentioning

confidence: 99%

Integration of Graphite and Silicon Anodes for the Commercialization of High‐Energy Lithium‐Ion Batteries

et al. 2019

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“…The addition of silicon oxide (SiO x ) has been adopted by the industry as an intermediate step previous to the definitive implementation of Si. SiO x has lower specific capacity than Si (1200 mAh•g −1 [86]) but its volumetric expansion is accordingly lower (~118% for the full lithiation of SiO x ) [68,74]. Furthermore, Si-O bonds in the oxide structure are stronger than Si-Si bonds, and particle pulverisation is, therefore, minimised [68,87].…”

Section: Silicon Oxide (Sio X )mentioning

confidence: 99%

Future Material Developments for Electric Vehicle Battery Cells Answering Growing Demands from an End-User Perspective

et al. 2021

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Nowadays, batteries for electric vehicles are expected to have a high energy density, allow fast charging and maintain long cycle life, while providing affordable traction, and complying with stringent safety and environmental standards. Extensive research on novel materials at cell level is hence needed for the continuous improvement of the batteries coupled towards achieving these requirements. This article firstly delves into future developments in electric vehicles from a technology perspective, and the perspective of changing end-user demands. After these end-user needs are defined, their translation into future battery requirements is described. A detailed review of expected material developments follows, to address these dynamic and changing needs. Developments on anodes, cathodes, electrolyte and cell level will be discussed. Finally, a special section will discuss the safety aspects with these increasing end-user demands and how to overcome these issues.

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“…Vond er Industrie entwickelte Si-Materialien wie SiO x , [21,53] Si-Metall-Legierungen [3b,20c, 22a, 45a] und porçses Si [22c, 50] haben ihre kommerzielle Realisierbarkeit in Graphitblend-Anoden grçßtenteils demonstriert. Graphit ver-…”

Section: Graphit/si-mischungen Als Anodenmaterialienunclassified

Graphit‐ und‐Silicium‐Anoden für Lithiumionen‐ Hochenergiebatterien

et al. 2019

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Silicium (Si) wird als ein vielversprechendes Anodenmaterial angesehen, mit dessen Hilfe die theoretische Kapazitätsgrenze kohlehaltiger Anodenmaterialien überwunden werden kann. Beim Problem der starken Volumenänderung als Folge der Lithiierung/Delithiierung brachte die Anwendung von Nanomethoden für Si‐Anoden einige Fortschritte. Weniger Erfolg hatte man bei der praktischen Anwendung von Si‐Anoden in kommerziellen Lithiumionen‐Batterien (LIBs). Vor dem Hintergrund eines wachsenden Bedarfs in vielen Bereichen wird der gemeinsame Einsatz des Si mit Graphit als eine wirtschaftlich sinnvolle Methode für die Realisierung hoher Energien diskutiert. Wir erörtern hier die Notwendigkeit der Kombination von Graphit und Si für die Kommerzialisierung und werden die Entwicklung von Graphit/Si‐Anoden im Detail darstellen. Behandelt werden typische Si‐Anoden, die für Graphitblend‐Elektroden verwendet werden und, geordnet nach der jeweiligen Synthesemethode, die Aufbaustrategien für Graphit/Si‐Komposite. Die Kriterien für den Graphit/Si‐Einsatz werden systematisch dargestellt. Zum Abschluss machen wir Vorschläge für die Kommerzialisierung von Graphit/Si‐Kombinationen.

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Electrochemical behavior of SiOx anodes with variation of oxygen ratio for Li-ion batteries

Cited by 48 publications

References 10 publications

Integration of Graphite and Silicon Anodes for the Commercialization of High‐Energy Lithium‐Ion Batteries

Integration of Graphite and Silicon Anodes for the Commercialization of High‐Energy Lithium‐Ion Batteries

Future Material Developments for Electric Vehicle Battery Cells Answering Growing Demands from an End-User Perspective

Graphit‐ und‐Silicium‐Anoden für Lithiumionen‐ Hochenergiebatterien

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