Synergism of Rare Earth Trihydrides and Graphite in Lithium Storage: Evidence of Hydrogen-Enhanced Lithiation
文献类型：期刊论文
| 作者 | Zheng, Xinyao1; Yang, Chengkai1; Chang, Xinghua1; Wang, Teng1; Ye, Meng2; Lu, Jing2; Zhou, Henghui1; Zheng, Jie1; Li, Xingguo1 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2018-01-18 |
| 卷号 | 30期号:3 |
| 关键词 | Anodes Graphite Hydride Lithium-ion Batteries Rare Earths |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201704353 |
| 英文摘要 | The lithium storage capacity of graphite can be significantly promoted by rare earth trihydrides (REH3, RE = Y, La, and Gd) through a synergetic mechanism. High reversible capacity of 720 mA h g(-1) after 250 cycles is achieved in YH3-graphite nanocomposite, far exceeding the total contribution from the individual components and the effect of ball milling. Comparative study on LaH3-graphite and GdH3-graphite composites suggests that the enhancement factor is 3.1-3.4 Li per active H in REH3, almost independent of the RE metal, which is evident of a hydrogen-enhanced lithium storage mechanism. Theoretical calculation suggests that the active H from REH3 can enhance the Li+ binding to the graphene layer by introducing negatively charged sites, leading to energetically favorable lithiation up to a composition Li5C16H instead of LiC6 for conventional graphite anode. |
| 语种 | 英语 |
| WOS记录号 | WOS:000429097600019 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46023]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhou, Henghui; Zheng, Jie; Li, Xingguo |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, BNLMS, Beijing 100871, Peoples R China 2.Peking Univ, Sch Phys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Xinyao,Yang, Chengkai,Chang, Xinghua,et al. Synergism of Rare Earth Trihydrides and Graphite in Lithium Storage: Evidence of Hydrogen-Enhanced Lithiation[J]. ADVANCED MATERIALS,2018,30(3). |
| APA | Zheng, Xinyao.,Yang, Chengkai.,Chang, Xinghua.,Wang, Teng.,Ye, Meng.,...&Li, Xingguo.(2018).Synergism of Rare Earth Trihydrides and Graphite in Lithium Storage: Evidence of Hydrogen-Enhanced Lithiation.ADVANCED MATERIALS,30(3). |
| MLA | Zheng, Xinyao,et al."Synergism of Rare Earth Trihydrides and Graphite in Lithium Storage: Evidence of Hydrogen-Enhanced Lithiation".ADVANCED MATERIALS 30.3(2018). |
入库方式： OAI收割
来源：化学研究所
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