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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201905295
|2 doi
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|a pubmed24n1022.xml
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|a (DE-627)NLM306710293
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|a (NLM)32077160
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Yang, Yang
|e verfasserin
|4 aut
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|a Achieving Ultrahigh-Rate and High-Safety Li+ Storage Based on Interconnected Tunnel Structure in Micro-Size Niobium Tungsten Oxides
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Developing advanced high-rate electrode materials has been a crucial aspect for next-generation lithium ion batteries (LIBs). A conventional nanoarchitecturing strategy is suggested to improve the rate performance of materials but inevitably brings about compromise in volumetric energy density, cost, safety, and so on. Here, micro-size Nb14 W3 O44 is synthesized as a durable high-rate anode material based on a facile and scalable solution combustion method. Aberration-corrected scanning transmission electron microscopy reveals the existence of open and interconnected tunnels in the highly crystalline Nb14 W3 O44 , which ensures facile Li+ diffusion even within micro-size particles. In situ high-energy synchrotron XRD and XANES combined with Raman spectroscopy and computational simulations clearly reveal a single-phase solid-solution reaction with reversible cationic redox process occurring in the NWO framework due to the low-barrier Li+ intercalation. Therefore, the micro-size Nb14 W3 O44 exhibits durable and ultrahigh rate capability, i.e., ≈130 mAh g-1 at 10 C, after 4000 cycles. Most importantly, the micro-size Nb14 W3 O44 anode proves its highest practical applicability by the fabrication of a full cell incorporating with a high-safety LiFePO4 cathode. Such a battery shows a long calendar life of over 1000 cycles and an enhanced thermal stability, which is superior than the current commercial anodes such as Li4 Ti5 O12
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|a Journal Article
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|a anode materials
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|a high-rate electrode materials
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|a high-safety
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|a lithium-ion batteries
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| 650 |
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|a niobium tungsten oxides
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| 700 |
1 |
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|a Zhu, He
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiao, Jinfei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Geng, Hongbo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Yufei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Jinbao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Gen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xun-Li
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Cheng Chao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Qi
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 12 vom: 04. März, Seite e1905295
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:12
|g day:04
|g month:03
|g pages:e1905295
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|u http://dx.doi.org/10.1002/adma.201905295
|3 Volltext
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|d 32
|j 2020
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