Vielfältige Nanostrukturen aus Reishülsen‐Biomasse für Energieanwendungen

Wang, Zhaofeng; Smith, Andrew T.; Wang, Weixing; Sun, Luyi

doi:10.1002/ange.201802050

Cited by 8 publications

(1 citation statement)

References 103 publications

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“…[18,19] Rice husk (RH) biomass,t he second mosta bundant byproduct of rice milling (more than 160 million tons per year) has been extensively studied in accordw ith the global paradigm shift towardss ustainable development in the past few decades. [20,21] Moreover, RH consistso fat hree-dimensional organic carbon structure whereas silica exists in the form of particles throughout the carbon structure. [22,23] Therefore, RH is an atural resourcef or supporting silica and its derivatives.…”

Section: Introductionmentioning

confidence: 99%

Simplified Synthesis of Biomass‐Derived Si/C Composites as Stable Anode Materials for Lithium‐Ion Batteries

Majeed

Saleem

Wang

et al. 2020

Chemistry A European J

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Synthesis of silicon/carbon (Si/C) composites from biomass resources could enable the effective utilization of agricultural products in the battery industry with economical as well as environmental benefits. Herein, a simplified process was developed to synthesize Si/C from biomass, by using a low‐cost agricultural byproduct “rice husk (RH)” as a model. This process includes the calcination of RH for SiO2/C and the reduction of SiO2/C by Al in molten salts at a moderate temperature. This process does not need the removal of carbon before thermal reduction of SiO2, which is thought to be necessary to avoid the formation of SiC at elevated temperatures. Thus, carbon derived from biomass can be directly used for Si/C composites for anode materials. The resultant Si/C shows a high reversible capacity of 1309 mAh g−1 and long cycle life (300 cycles). This research advocates a new and simplified strategy for the synthesis of RH‐based biomass‐derived Si/C, which is beneficial for low‐cost, environmentally friendly, and green energy storage applications.

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Section: Introductionmentioning

confidence: 99%

Simplified Synthesis of Biomass‐Derived Si/C Composites as Stable Anode Materials for Lithium‐Ion Batteries

Majeed

Saleem

Wang

et al. 2020

Chemistry A European J

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Strategien für kostengünstige und leistungsstarke Dual‐Ionen‐Batterien

et al. 2019

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Wiederaufladbare Lithiumionen‐Batterien (LIBs) stellen den aktuellen Stand der Technik im Hinblick auf die globalen Probleme sich verknappender und umweltschädlicher fossiler Brennstoffe dar und werden bereits umfassend in elektronischen Geräten und Elektrofahrzeugen (EVs) eingesetzt. Für EVs und große Netzenergiespeicher stehen sie direkt vor einer umfassenden Kommerzialisierung. Während die Nachfrage rasant steigt, werden allerdings die Ressourcen für Lithium und Cobalt knapp. Bei steigenden Kosten entsteht ein erheblicher Anreiz, kostengünstige wiederaufladbare Batteriesysteme zu entwickeln. Bei Dual‐Ionen‐Batterien (DIBs) nehmen sowohl Kationen als auch Anionen an der elektrochemischen Redoxreaktion teil. Diese Akkumulatoren sind gegenüber herkömmlichen Rocking‐Chair‐LIBs außerordentlich sicher und umweltfreundlich und könnten die preislichen Erwartungen für kommerzielle Anwendungen bestens erfüllen. Allerdings muss man sich im Klaren darüber sein, dass sich die DIB‐Technologie noch tief in der Grundlagenforschung befindet. Um höhere Energiedichten und Lebensdauern zu erreichen, müssen noch erhebliche Anstrengungen unternommen werden. In diesem Aufsatz wollen wir die Geschichte und den aktuellen Entwicklungsstand von DIBs erörtern. Die Reaktionskinetik wird erläutert, darunter die verschiedenen anionischen Interkalationsmechanismen an der Kathode sowie die Reaktionen an der Anode wie Interkalierung, Legierungsbildung usw. Ziel ist es, vielversprechende Strategien für kostengünstige DIBs mit hoher Leistung zu finden.

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Strategies towards Low‐Cost Dual‐Ion Batteries with High Performance

et al. 2019

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Rocking‐chair based lithium‐ion batteries (LIBs) have extensively applied to consumer electronics and electric vehicles (EVs) for solving the present worldwide issues of fossil fuel exhaustion and environmental pollution. However, due to the growing unprecedented demand of LIBs for commercialization in EVs and grid‐scale energy storage stations, and a shortage of lithium and cobalt, the increasing cost gives impetus to exploit low‐cost rechargeable battery systems. Dual‐ion batteries (DIBs), in which both cations and anions are involved in the electrochemical redox reaction, are one of the most promising candidates to meet the low‐cost requirements of commercial applications, because of their high working voltage, excellent safety, and environmental friendliness compared to conventional rocking‐chair based LIBs. However, DIB technologies are only at the stage of fundamental research and considerable effort is required to improve the energy density and cycle life further. We review the development history and current situation, and discuss the reaction kinetics involved in DIBs, including various anionic intercalation mechanism of cathodes, and the reactions at the anodes including intercalation and alloying to explore promising strategies towards low‐cost DIBs with high performance.

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Vielfältige Nanostrukturen aus Reishülsen‐Biomasse für Energieanwendungen

Cited by 8 publications

References 103 publications

Simplified Synthesis of Biomass‐Derived Si/C Composites as Stable Anode Materials for Lithium‐Ion Batteries

Simplified Synthesis of Biomass‐Derived Si/C Composites as Stable Anode Materials for Lithium‐Ion Batteries

Strategien für kostengünstige und leistungsstarke Dual‐Ionen‐Batterien

Strategies towards Low‐Cost Dual‐Ion Batteries with High Performance

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