New insight into the interaction between propylene carbonate-based electrolytes and graphite anode material for lithium ion batteries
文献类型：期刊论文
| 作者 | H. L. Zhang ; C. H. Sun ; F. Li ; C. Liu ; J. Tan ; H. M. Cheng |
| 刊名 | Journal of Physical Chemistry C
 |
| 出版日期 | 2007 |
| 卷号 | 111期号:12页码:4740-4748 |
| 关键词 | surface-film formation electrochemical intercalation negative electrode natural graphite alkyl dicarbonates vinylene carbonate xps analysis high-power li cells |
| ISSN号 | 1932-7447 |
| 中文摘要 | Sufficient understanding of surface chemistry for electrode and electrolytes during an electrochemical process is a crucial issue to further improve the performance of lithium ion batteries (LIB). In this study, we systematically investigate the interaction between propylene carbonate (PC)-based electrolytes and graphite anode material, which has been under dispute for a long time in the electrochemical community, and a new physical model is proposed to explain the poor compatibility of PC with graphite. With the aid of scanning electron microscopy, focused ion beam workstation, Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and thermogravimetry-differential scanning calorimetry, the cumbersome but intriguing questions on the poor compatibility are addressed: (i) Does PC truly have the ability to co-intercalate into graphite materials? Our answer is yes. (ii) Where is the intercalation site? It is around the crystal boundary. (iii) Why does the co-intercalation occur for PC not ethylene carbonateanother kind of useful electrolyte in LIB, since both of them have a similar molecular structure? The methyl group in the PC molecule is the main wire-puller, which makes decomposition products of PC puffed and thus incompetent in inhibiting the subsequent co-intercalation. Finally, three feasible strategies to overcome the poor compatibility are summarized. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34024]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. L. Zhang,C. H. Sun,F. Li,et al. New insight into the interaction between propylene carbonate-based electrolytes and graphite anode material for lithium ion batteries[J]. Journal of Physical Chemistry C,2007,111(12):4740-4748. |
| APA | H. L. Zhang,C. H. Sun,F. Li,C. Liu,J. Tan,&H. M. Cheng.(2007).New insight into the interaction between propylene carbonate-based electrolytes and graphite anode material for lithium ion batteries.Journal of Physical Chemistry C,111(12),4740-4748. |
| MLA | H. L. Zhang,et al."New insight into the interaction between propylene carbonate-based electrolytes and graphite anode material for lithium ion batteries".Journal of Physical Chemistry C 111.12(2007):4740-4748. |
入库方式： OAI收割
来源：金属研究所
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