2019
DOI: 10.1002/aenm.201802695
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Identification of Phase Control of Carbon‐Confined Nb2O5 Nanoparticles toward High‐Performance Lithium Storage

Abstract: developing advanced electrochemical energy storage devices with high energy/ power density and long lifespan. [1] Among them, lithium-ion batteries (LIBs) and supercapacitors (SCs) are two most promising devices for chemical energy storage. [2] However, there has been an obvious research boundary between them owing to their different charge-storage mechanisms. Generally, LIBs provide high energy density but relatively low power density on basis of insertion-, conversion-, and alloying-type mechanisms, while S… Show more

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Cited by 175 publications
(103 citation statements)
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“…effect of GO, puncture effect of Ag NPs, and inhibitory effect of SD. This study provides new insights into the design and fabrication of surface-modified GO and carbon materials [39][40][41][42][43] and their 2D hybrid multifunctional materials for advanced applications including biomedical 44 especially antibacterial applications, broadening the design and application scope of carbon and 2D materials.…”
Section: Resultsmentioning
confidence: 98%
“…effect of GO, puncture effect of Ag NPs, and inhibitory effect of SD. This study provides new insights into the design and fabrication of surface-modified GO and carbon materials [39][40][41][42][43] and their 2D hybrid multifunctional materials for advanced applications including biomedical 44 especially antibacterial applications, broadening the design and application scope of carbon and 2D materials.…”
Section: Resultsmentioning
confidence: 98%
“…However, it is rarely investigated because of the poor rate performance and rapid capacity decay, which was thought to be ascribed to the existence of two‐phase transition process during (de)lithiation cycling. [ 11 ]…”
Section: Figurementioning
confidence: 99%
“…5e shows that 56% of the total capacity origins from the surface capacitive reactions. According to ex-XPS results of Nb element in electrode materials after fully discharged/charged cycles, the reaction of Nb 5+ to Nb 4+ appeared when the device was fully discharged, illustrating that the behavior of Na + insertion appeared during the discharging process [16,[42][43][44]. Moreover, as the voltage decreased, the number of intercalated sodium ions gradually increased.…”
Section: Resultsmentioning
confidence: 94%