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Sökning: onr:"swepub:oai:DiVA.org:su-116524" > Stable Alkali Metal...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003631naa a2200505 4500
001oai:DiVA.org:su-116524
003SwePub
008150421s2015 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1165242 URI
0247 a https://doi.org/10.1021/acs.nanolett.5b002842 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Zhao, Yunlong4 aut
2451 0a Stable Alkali Metal Ion Intercalation Compounds as Optimized Metal Oxide Nanowire Cathodes for Lithium Batteries
264 c 2015-02-09
264 1b 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 7a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe
650 7a 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
7001 a Han, Chunhua4 aut
7001 a Yang, Junwei4 aut
7001 a Su, Jieu Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)jsu
7001 a Xu, Xiaoming4 aut
7001 a Li, Shuo4 aut
7001 a Xu, Lin4 aut
7001 a Fang, Ruopian4 aut
7001 a Jiang, Hong4 aut
7001 a Zou, Xiaodongu Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)xzou
7001 a Song, Bo4 aut
7001 a Mai, Liqiang4 aut
7001 a Zhang, Qingjie4 aut
7102 a Stockholms universitetb Institutionen för material- och miljökemi (MMK)4 org
7730 t Nano letters (Print)d : American Chemical Society (ACS)g 15:3, s. 2180-2185q 15:3<2180-2185x 1530-6984x 1530-6992
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-116524
8564 8u https://doi.org/10.1021/acs.nanolett.5b00284

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