Open AccessAn operando X-ray diffraction study of chloroaluminate anion-graphite intercalation in aluminum batteries
Author(s) -
ChunJern Pan,
Chunze Yuan,
Guanzhou Zhu,
Qian Zhang,
Chen−Jui Huang,
MengChang Lin,
Michael Angell,
Bing−Joe Hwang,
Payam Kaghazchi,
Hongjie Dai
Publication year - 2018
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.1803576115
Subject(s) - intercalation (chemistry) , graphite , battery (electricity) , electrolyte , electrochemistry , electrode , materials science , diffraction , synchrotron , aluminium , ion , analytical chemistry (journal) , inorganic chemistry , chemistry , metallurgy , organic chemistry , thermodynamics , optics , physics , nuclear physics , power (physics)
Significance Operando X-ray diffraction experiments are performed to investigate chloroaluminate anion intercalation into a graphite positive electrode during electrochemical charging and discharging of rechargeable aluminum batteries in situ. The results revealed surprisingly ordered anion intercalation staging behavior in graphite despite the large anion size and the remarkably stable graphite structure upon repeated intercalation and deintercalation by the large anions. The basic understanding will guide the design and development of new battery materials and new batteries.
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