教師資料查詢 | 類別: 期刊論文 | 教師: 董崇禮 CHUNG-LI DONG (瀏覽個人網頁)

標題:Insight into dynamic molecular interaction mechanism for Al-C battery by operando synchrotron x-ray techniques
學年107
學期2
出版(發表)日期2019/05/01
作品名稱Insight into dynamic molecular interaction mechanism for Al-C battery by operando synchrotron x-ray techniques
作品名稱(其他語言)
著者D. Y. Wang; S. K. Huang; H. J. Liao; Y. M. Chen; S. W. Wang; Y. T. Kao; J. Y. An; Y. C. Lee; C. H. Chuang; Y. C. Huang; Y. R. Lu; H. J. Lin; H. L. Chou; C. W. Chen; Y. H. Lai; C. L. Dong
單位
出版者
著錄名稱、卷期、頁數Carbon 146, p.528-534
摘要Recently, a novel rechargeable Al ion battery (AIB) with high performance has been developed. Owing to its low cost, high-rate capability, excellent cyclability, and non-flammability, AIB provides a safe alternative to many commercial batteries used in the energy storage system. To improve its performance, identifying molecular structure and arrangement of chloroaluminate anion (AlCl4−) intercalated in the graphite layer remains a great challenge. In this work, operando analysis of X-ray diffraction (XRD) measurement and X-ray absorption (XAS) spectroscopy were performed to investigate the intercalation of AlCl4− anion and related molecular arrangement in the graphite layers. The intercalated stage and intercalant gallery height of graphite cathode electrode during AIB battery operation were observed to be stage 3 and 9.22 Å, respectively. Furthermore, the spectral evolution from ex-situ XAS at the Al and Cl K-edge was associated with closely packed intercalation of AlCl4− molecules. With density functional theory (DFT) calculation, three simulated models of intercalated AlCl4− molecules in the graphite layer were revealed successfully, which explained possible molecular structures at different charging states. This analytical methodology paves the way for better understanding the structural transformation of molecular ions de-/intercalation in graphite layers.
關鍵字Al ion battery;X-ray absorption spectroscopy;In-situ X-ray diffraction;Simulated core-level spectrum;Anion intercalation
語言英文
ISSN1873-3891
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版
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