New Carbon Materials最新文献_第10页

Preparation and electrochemical performance of ultra-thin reduced graphene oxide/lithium metal composite foils 超薄还原氧化石墨烯/锂金属复合箔的制备及其电化学性能

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60729-2

Er-yang Mao , Jun-mou Du , Xiang-rui Duan , Ling-yue Wang , Xian-cheng Wang , Guo-cheng Li , Lin Fu , Yong-ming Sun

{"title":"Preparation and electrochemical performance of ultra-thin reduced graphene oxide/lithium metal composite foils","authors":"Er-yang Mao , Jun-mou Du , Xiang-rui Duan , Ling-yue Wang , Xian-cheng Wang , Guo-cheng Li , Lin Fu , Yong-ming Sun","doi":"10.1016/S1872-5805(23)60729-2","DOIUrl":"https://doi.org/10.1016/S1872-5805(23)60729-2","url":null,"abstract":"<div><p>Ultra-thin (≤50 μm) lithium metal anodes (LMAs) are highly desirable for high energy density lithium metal batteries (LMBs). However, their fabrication is complicated and costly due to the sticky and brittle nature of metallic Li, and they have a worse cycling stability than their thick counterparts. We report the fabrication of ultra-thin reduced graphene oxide/Li metal (rGO/Li) composite foils with thicknesses ranging from 10 to 50 μm. During the fabrication, disordered rGO sheets and molten metallic Li were stirred and combined at 200 ºC to produce micrometer-thick rGO/Li sheets, which were processed to form an ultra-thin uniform composite foil. The rGO sheets were randomly distributed in the rGO/Li composite to form a three-dimensional network, which is different from the laminated rGO structure previously reported, and supported stable Li plating/stripping behavior. As expected, a superior electrochemical performance was achieved using this composite sheet for the anode. A 50 μm-thick rGO/Li composite foil electrode displayed stable cycling for > 1 600 h at 1 mA cm<sup>−2</sup> and 1 mAh cm<sup>−2</sup> in symmetrical cells in an ether-based electrolyte. A full cell consisting of a 50 μm-thick rGO/Li composite foil anode and a sulfurized polyacrylonitrile cathode had a high capacity retention of 675 mAh g<sup>−1</sup> after 220 cycles at 0.2 C.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49728451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in the use of carbonaceous scaffolds for constructing stable composite Li metal anodes 碳质支架构建稳定复合锂金属阳极的研究进展

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60734-6

Yue Chen, Lu-kang Zhao, Jun-long Zhou, Yu-hua Bian, Xuan-wen Gao, Hong Chen, Zhao-meng Liu, Wen-bin Luo

引用次数: 0

Understanding the process of lithium deposition on a graphite anode for better lithium-ion batteries 了解锂在石墨阳极上沉积的过程，以获得更好的锂离子电池

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60747-4

Yu-jie Xu , Bing Wang , Yi Wan , Yi Sun , Wan-li Wang , Kang Sun , Li-jun Yang , Han Hu , Ming-bo Wu

引用次数: 0

Carbon-based materials for advanced lithium metal batteries based on carbon units of different dimensions 基于不同尺寸碳单元的先进锂金属电池用碳基材料

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60768-1

Xing-hao Zhang , Ting Xie , De-bin Kong , Lin-jie Zhi

引用次数: 0

Advances in carbon-based composite anodes with gradients of lithiophilicity and conductivity used for stable lithium metal batteries 具有亲锂性和电导率梯度的碳基复合阳极用于稳定锂金属电池的研究进展

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60744-9

Ya-nan Wang , Ying-xin Zhan , Xue-qiang Zhang , Jia-qi Huang

{"title":"Advances in carbon-based composite anodes with gradients of lithiophilicity and conductivity used for stable lithium metal batteries","authors":"Ya-nan Wang , Ying-xin Zhan , Xue-qiang Zhang , Jia-qi Huang","doi":"10.1016/S1872-5805(23)60744-9","DOIUrl":"https://doi.org/10.1016/S1872-5805(23)60744-9","url":null,"abstract":"<div><p>To address the issues of non-uniform Li plating/stripping and the large volume fluctuations during their repeated cycling, Li metal anodes, a composite Li anode with a three-dimensional (3D) host has been proposed as a promising strategy to improve the uniformity of Li plating/stripping and relieve volume fluctuations. One key strategy in this area is to develop 3D carbon hosts with gradients of lithiophilicity and conductivity to guide Li deposition from bottom to top, thus maximizing the positive effect of this composite Li anode. Such anodes have recently received significant attention due to the flexibility, adjustability, (electro)chemical stability and light weight of the carbon hosts. This review summarizes recent advances in these anodes, categorizing them into those that have hosts with a lithiophilicity gradient, hosts with a conductivity gradient, and those that have both. Latest research findings are discussed and these different anode categories are reviewed. Prospects for the design of such anodes to promote the use of Li metal anodes in high-energy-density rechargeable batteries are presented.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49728236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role, formation and characterization of LiC6 in composite lithium anodes LiC6在复合锂阳极中的作用、形成和表征

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60773-5

Zhou-qing Xue , Zi-you Wang , Jun-dong Zhang , Yang Lu , Wen-ze Huang , Ai-bing Chen , Chen-zi Zhao , Kuzmina Elena , Karaseva Elena , Kolosnitsyn Vladimir , Li-zhen Fan , Qiang Zhang

{"title":"The role, formation and characterization of LiC6 in composite lithium anodes","authors":"Zhou-qing Xue , Zi-you Wang , Jun-dong Zhang , Yang Lu , Wen-ze Huang , Ai-bing Chen , Chen-zi Zhao , Kuzmina Elena , Karaseva Elena , Kolosnitsyn Vladimir , Li-zhen Fan , Qiang Zhang","doi":"10.1016/S1872-5805(23)60773-5","DOIUrl":"https://doi.org/10.1016/S1872-5805(23)60773-5","url":null,"abstract":"<div><p>To solve the problems of large volume changes and the formation of lithium dendrites in lithium metal batteries, the incorporation of carbon into the lithium metal anodes has gained considerable attention due to its excellent chemical and electrochemical stability, as well as its exceptional mechanical strength that allows repeated cycling. This review provides a comprehensive overview of the formation of lithiated graphite (LiC<sub>6</sub>) and its role in both bulk and electrode-electrolyte interface regions during lithium plating and stripping. In bulk form, LiC<sub>6</sub> has excellent lithiophilic properties, reducing the overpotential for lithium nucleation and promoting uniform lithium deposition. Additionally, when LiC<sub>6</sub> is introduced at the electrode-electrolyte interfaces, it improves contact between the electrode and electrolyte by acting as a buffering layer, thereby reducing interfacial impedance. Finally, prospects and challenges for the development of Li/C composite anodes are discussed.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49700565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The factors that influence the electrochemical behavior of lithium metal anodes: electron transfer and Li-ion transport 影响锂金属阳极电化学行为的因素:电子转移和锂离子输运

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60766-8

Meng-tian Zhang, Hao-tian Qu, Guang-min Zhou

{"title":"The factors that influence the electrochemical behavior of lithium metal anodes: electron transfer and Li-ion transport","authors":"Meng-tian Zhang, Hao-tian Qu, Guang-min Zhou","doi":"10.1016/S1872-5805(23)60766-8","DOIUrl":"https://doi.org/10.1016/S1872-5805(23)60766-8","url":null,"abstract":"<div><p>Structured carbon-based hosts for the Li anode both improve the transport of Li-ions and reduce the electron transfer rate and have proven to be an effective way to suppress dendrite growth in lithium metal anodes. An in-depth understanding of these effects is needed to clarify the intrinsic electrochemical mechanism involved. We used the finite element method to simulate the two crucial processes controlling Li-ion behavior, electron transfer and Li-ion transport, and visualized the local deposition rate, the overpotential, and the Li-ion concentration in a three-dimensional (3D) Li//electrolyte//Li cell. Our analysis showed a competitive relationship between the rates of Li-ion transport and electron transfer. When the electron transfer rate is relatively slow, there are sufficient Li-ions available near the anode surface and the deposition behavior is controlled by electron transfer. However, when the number of Li-ions is low, Li-ion transport dominates the deposition process because it is unable to keep up with electron transfer, and this causes dendrite formation. Therefore, reducing the reactivity of the Li anode and accelerating Li-ion transport are the two key factors to produce uniform Li metal deposition on the anode, particularly under fast charging conditions and in practical use.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49700571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent advances in Mxene-based nanomaterials as hosts for high-performance lithium metal anodes and as additives for improving the properties of solid electrolytes mxene基纳米材料作为高性能锂金属阳极的载体和改善固体电解质性能的添加剂的最新进展

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60767-X

Jia-lu Yang , Yue Qian , Ke Wang, Hua-dong Yuan, Jian-wei Nai, Yu-jing Liu, Yao Wang, Jian-min Luo, Xin-yong Tao

{"title":"Recent advances in Mxene-based nanomaterials as hosts for high-performance lithium metal anodes and as additives for improving the properties of solid electrolytes","authors":"Jia-lu Yang , Yue Qian , Ke Wang, Hua-dong Yuan, Jian-wei Nai, Yu-jing Liu, Yao Wang, Jian-min Luo, Xin-yong Tao","doi":"10.1016/S1872-5805(23)60767-X","DOIUrl":"https://doi.org/10.1016/S1872-5805(23)60767-X","url":null,"abstract":"<div><p>To tackle the issues of rapid electrode degradation and severe safety issues caused by the uncontrollable growth of lithium dendrites in Li metal anodes (LMAs), two-dimensional transition metal carbides/nitrides (MXenes) with a high electrical conductivity, excellent mechanical properties, and abundant surface functional groups have been used as hosts to induce uniform Li nucleation and alleviate the volume changes, eventually inhibiting the formation of Li dendrites. Recent advances in the use of MXene-based nanomaterials in LMAs are summarized. The problems with using LMAs are first considered, and the ways of using MXene-based nanomaterials for suppressing Li dendrite growth and constructing stable LMAs are then summarized. These include the use of MXenes, MXene-metal hybrids, MXene-carbon hybrids, and MXene derivatives as hosts for the anodes and as additives to modify the electrolyte compositions to increase ionic conductivity and inhibit polymer crystallization. Finally, the challenges and prospects for using MXene-based nanomaterials in next-generation LMAs are briefly discussed.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49728240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of carbon materials in suppressing dendrite formation in lithium metal batteries 碳材料在抑制锂金属电池枝晶形成中的作用

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60762-0

Huang-lin Dou , Zhen-xin Zhao , Sun-bin Yang , Xiao-min Wang , Xiao-wei Yang

引用次数: 0

Fabrication of vulcanized cross-linked polystyrene grafted on carbon nanotubes for use as an advanced lithium host 接枝碳纳米管的硫化交联聚苯乙烯的制备

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2023-08-01 DOI: 10.1016/S1872-5805(23)60745-0

Xian-lan Ke , Yu-heng Lu , Jin-lun Wu , Ding-cai Wu

{"title":"Fabrication of vulcanized cross-linked polystyrene grafted on carbon nanotubes for use as an advanced lithium host","authors":"Xian-lan Ke , Yu-heng Lu , Jin-lun Wu , Ding-cai Wu","doi":"10.1016/S1872-5805(23)60745-0","DOIUrl":"https://doi.org/10.1016/S1872-5805(23)60745-0","url":null,"abstract":"<div><p>We report the fabrication of vulcanized cross-linked polystyrene grafted on carbon nanotubes (CNTs) for use as an advanced three-dimensional Li host. First, polystyrene was grafted from Br-modified CNTs to form brush-like structure by surface-initiated atom-transfer radical polymerization. Polystyrene grafted on carbon nanotubes was then cross-linked using a Friedel-Crafts reaction and finally vulcanized with sulfur. Vulcanized cross-linked polystyrene grafted on carbon nanotubes was used as a support for the Li metal, and its macro-, meso- and microporous structure increased Li ion transport, buffered the volume changes of the Li anode, and provided a high specific surface area to reduce local current density, which assisted rapid and uniform Li plating/stripping. At the same time, the homogenously distributed sulfur in the support reacted with Li to produce a Li<sub>2</sub>S-containing SEI layer, while the CNTs provided conductive pathways for the rapid transmission of electrons. As a result, a Li|Li symmetric cell using this anode material and a Cu current collector had a stable cycling performance of more than 500 h at a current density of 1 mA cm<sup>−2</sup>. When LiFePO<sub>4</sub> was used as the cathode, a full cell had a high discharge capacity of 101 mAh g<sup>−1</sup> with a capacity retention of 77% after 600 cycles at 1 C.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49756610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0