{"title":"Electrochemical Compatibility of Microzonal Carbon in Ion Uptake and Molecular Insights into Interphase Evolution for Next‐Generation Li‐Ion Batteries","authors":"Montajar Sarkar, Rumana Hossain, Jian Peng, Neeraj Sharma, Veena Sahajwalla","doi":"10.1002/aenm.202401977","DOIUrl":null,"url":null,"abstract":"Carbon anode‐based Li‐ion batteries (LIBs) have been widely used ranging from portable electronics to electric vehicles (EVs). Here a novel carbon material called microzonal carbon is introduced, synthesized from waste hard rubber (WHR), as an anode material for next‐generation LIBs. This material consists of a hybrid carbon structure embedded with short range ordered carbon zones, including expanded graphene sheets and nanopores. Two types of microzonal carbons (M‐5H and M‐10H) are tested in LIBs to unveil their electrochemical performance. The anode fabricated with M‐10H provides a high initial coulombic efficiency (60%), reversible capacity (377 mA h g<jats:sup>−1</jats:sup> at 0.13 C), rate capability (275 mA h g<jats:sup>−1</jats:sup> at 2.6 C) and cyclic stability (capacity retention of 99% at 0.13 C after 100 cycles). The electrochemical properties of microzonal carbon can be attributed to its unique hybrid carbon structure, facilitating fast ion diffusion, high electronic conductivity, and the ability to form stable interphase. Therefore, this work presents new insights into the electrochemical behavior of microzonal carbon as an anode material in next‐generation LIBs.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":null,"pages":null},"PeriodicalIF":24.4000,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Energy Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/aenm.202401977","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Carbon anode‐based Li‐ion batteries (LIBs) have been widely used ranging from portable electronics to electric vehicles (EVs). Here a novel carbon material called microzonal carbon is introduced, synthesized from waste hard rubber (WHR), as an anode material for next‐generation LIBs. This material consists of a hybrid carbon structure embedded with short range ordered carbon zones, including expanded graphene sheets and nanopores. Two types of microzonal carbons (M‐5H and M‐10H) are tested in LIBs to unveil their electrochemical performance. The anode fabricated with M‐10H provides a high initial coulombic efficiency (60%), reversible capacity (377 mA h g−1 at 0.13 C), rate capability (275 mA h g−1 at 2.6 C) and cyclic stability (capacity retention of 99% at 0.13 C after 100 cycles). The electrochemical properties of microzonal carbon can be attributed to its unique hybrid carbon structure, facilitating fast ion diffusion, high electronic conductivity, and the ability to form stable interphase. Therefore, this work presents new insights into the electrochemical behavior of microzonal carbon as an anode material in next‐generation LIBs.
从便携式电子产品到电动汽车,基于碳阳极的锂离子电池(LIB)已得到广泛应用。本文介绍了一种名为微带碳的新型碳材料,该材料由废硬橡胶(WHR)合成,可作为下一代锂离子电池的阳极材料。这种材料由混合碳结构组成,内嵌短程有序碳区,包括膨胀石墨烯片和纳米孔。在 LIB 中测试了两种类型的微带碳(M-5H 和 M-10H),以揭示它们的电化学性能。用 M-10H 制作的阳极具有较高的初始库仑效率(60%)、可逆容量(0.13 C 时为 377 mA h g-1)、速率能力(2.6 C 时为 275 mA h g-1)和循环稳定性(100 次循环后,0.13 C 时的容量保持率为 99%)。微带碳的电化学特性可归因于其独特的混合碳结构,这种结构有利于离子的快速扩散、高电子传导性以及形成稳定相间的能力。因此,这项研究对微宗炭作为下一代 LIB 负极材料的电化学行为提出了新的见解。
期刊介绍:
Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small.
With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics.
The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.