Sökning: WFRF:(Zou Bo) > Stable Alkali Metal...
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000 | 03631naa a2200505 4500 | |
001 | oai:DiVA.org:su-116524 | |
003 | SwePub | |
008 | 150421s2015 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1165242 URI |
024 | 7 | a https://doi.org/10.1021/acs.nanolett.5b002842 DOI |
040 | a (SwePub)su | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Zhao, Yunlong4 aut |
245 | 1 0 | a Stable Alkali Metal Ion Intercalation Compounds as Optimized Metal Oxide Nanowire Cathodes for Lithium Batteries |
264 | c 2015-02-09 | |
264 | 1 | b American Chemical Society (ACS),c 2015 |
338 | a print2 rdacarrier | |
500 | a AuthorCount:13; | |
520 | a Intercalation of ions in electrode materials has been explored to improve the rate capability in lithium batteries and supercapacitors, due to the enhanced diffusion of Li+ or electrolyte cations. Here, we describe a synergistic effect between crystal structure and intercalated ion by experimental characterization and ab initio calculations, based on more than 20 nanomaterials: five typical cathode materials together with their alkali metal ion intercalation compounds A-M-O (A = Li, Na, K, Rb; M = V, Mo, Co, Mn, Fe-P). Our focus on nanowires is motivated by general enhancements afforded by nanoscale structures that better sustain lattice distortions associated with charge/discharge cycles. We show that preintercalation of alkali metal ions in V-O and Mo-O yields substantial improvement in the Li ion charge/discharge cycling and rate, compared to A-Co-O, A-Mn-O, and A-Fe-P-O. Diffraction and modeling studies reveal that preintercalation with K and Rb ions yields a more stable interlayer expansion, which prevents destructive collapse of layers and allow Li ions to diffuse more freely. This study demonstrates that appropriate alkali metal ion intercalation in admissible structure can overcome the limitation of cyclability as well as rate capability of cathode materials, besides, the preintercalation strategy provides an effective method to enlarge diffusion channel at the technical level, and more generally, it suggests that the optimized design of stable intercalation compounds could lead to substantial improvements for applications in energy storage. | |
650 | 7 | a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng |
653 | a Alkali metal on intercalation | |
653 | a metal oxide nanowire cathodes | |
653 | a rotation electron diffraction | |
653 | a ab initio calculations | |
653 | a synergistic stabilizing effect | |
700 | 1 | a Han, Chunhua4 aut |
700 | 1 | a Yang, Junwei4 aut |
700 | 1 | a Su, Jieu Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)jsu |
700 | 1 | a Xu, Xiaoming4 aut |
700 | 1 | a Li, Shuo4 aut |
700 | 1 | a Xu, Lin4 aut |
700 | 1 | a Fang, Ruopian4 aut |
700 | 1 | a Jiang, Hong4 aut |
700 | 1 | a Zou, Xiaodongu Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)xzou |
700 | 1 | a Song, Bo4 aut |
700 | 1 | a Mai, Liqiang4 aut |
700 | 1 | a Zhang, Qingjie4 aut |
710 | 2 | a Stockholms universitetb Institutionen för material- och miljökemi (MMK)4 org |
773 | 0 | t Nano letters (Print)d : American Chemical Society (ACS)g 15:3, s. 2180-2185q 15:3<2180-2185x 1530-6984x 1530-6992 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-116524 |
856 | 4 8 | u https://doi.org/10.1021/acs.nanolett.5b00284 |
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