Array geometry dictates electrochemical performance of Ge nanowire lithium ion battery anodes

Farbod, Behdokht; Cui, Kai; Kupsta, Martin; Kalisvaart, W. Peter; Memarzadeh, Elmira; Kohandehghan, Alireza; Mitlin, David

doi:10.1039/c4ta03805c

Cited by 33 publications

(17 citation statements)

References 116 publications

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“…Moreover, we have reported the detailed structure of the wrinkled Si framework to elucidate its high performance 21 . The formation of similar structures to the wrinkled structure have been reported in the Si nanowires 24 and carbon nanotube covered by Si nanolayer 25 , and also in Ge 26 27 28 29 30 31 32 33 34 and SnO 2 35 , which involve large volume expansion/contraction upon lithiation/delithiation. In these examples, the presence of a continuous framework consisting of a nano-sized active material (Si, Ge, or SnO 2 ) is the key factor for the formation of the wrinkled structure, thereby exhibiting a high performance.…”

supporting

confidence: 67%

Beads-Milling of Waste Si Sawdust into High-Performance Nanoflakes for Lithium-Ion Batteries

Kasukabe

Nishihara

Kimura

et al. 2017

Sci Rep

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Nowadays, ca. 176,640 tons/year of silicon (Si) (>4N) is manufactured for Si wafers used for semiconductor industry. The production of the highly pure Si wafers inevitably includes very high-temperature steps at 1400–2000 °C, which is energy-consuming and environmentally unfriendly. Inefficiently, ca. 45–55% of such costly Si is lost simply as sawdust in the cutting process. In this work, we develop a cost-effective way to recycle Si sawdust as a high-performance anode material for lithium-ion batteries. By a beads-milling process, nanoflakes with extremely small thickness (15–17 nm) and large diameter (0.2–1 μm) are obtained. The nanoflake framework is transformed into a high-performance porous structure, named wrinkled structure, through a self-organization induced by lithiation/delithiation cycling. Under capacity restriction up to 1200 mAh g−1, the best sample can retain the constant capacity over 800 cycles with a reasonably high coulombic efficiency (98–99.8%).

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supporting

confidence: 67%

Beads-Milling of Waste Si Sawdust into High-Performance Nanoflakes for Lithium-Ion Batteries

Kasukabe

Nishihara

Kimura

et al. 2017

Sci Rep

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“…Meanwhile, TiO 2 nanowires were fabricated through a self-scrolling and template-free process by Li et al and reversible specific capacity of 153 mAh g À1 was remained after 300 cycles at 10 C [17]. Farbod et al successfully synthesized the Ge nanowire, which was highly favorable in terms of the reversible capacity, and high-rate capability [18]. All these results have demonstrated that construction of active materials with1D nanotubes and nanowires is a good way to improve the electrochemical properties of electrode materials.…”

Section: Introductionmentioning

confidence: 99%

Construction of Co3O4 nanotubes as high-performance anode material for lithium ion batteries

Chen

Xia

Yin

et al. 2015

Electrochimica Acta

120

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“…When C 1s spectra were fitted, many kinds of carbon functional groups were observed, such as C–O (286.0 eV), CO (287.4 eV), and CO(RCOOR′) (289.3 eV), providing spectroscopic evidence of electrolyte decomposition. In the F 1s spectra, peaks assigned to LiF (685.4 eV), Li x PO y F z (687.3 eV), and Li x PF y (688.5 eV) were commonly observed in cycled cathodes. Although quantitative analyses indicated that the amount of F element was almost the same for cycled h-LNCM and 0.3-TSO h-LNCM cathodes, relatively large amounts of LiF and Li x PF y (which were considered decomposed components increasing the internal resistance of the cell) − formed in the cycled h-LNCM cathode.…”

Section: Resultsmentioning

confidence: 99%

Interface-Stabilized Layered Lithium Ni-Rich Oxide Cathode via Surface Functionalization with Titanium Silicate

Lee

Jung

Lee

et al. 2021

ACS Appl. Mater. Interfaces

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Nickel-rich lithium metal oxide cathode materials have recently be en highlighted as next-generation cathodes for lithium-ion batteries. Nevertheless, their relatively high surface reactivity must be controlled, as fading of the cycling retention occurs rapidly in the cells. This paper proposes functionalized nickel-rich lithium metal oxide cathode materials by a multipurpose nanosized inorganic materialtitanium silicon oxidevia a simple thermal treatment process. We examined the topologies of the nano-titanium silicate-functionalized nickel-rich lithium metal oxide cathodes with scanning electron microscopy and quantitatively analyzed their improved mechanical properties using microindentation. The cell containing nickel-rich lithium metal oxide cathodes suffered from poor cycling behavior as the electrolytes persistently decomposed; however, this behavior was effectively inhibited in the cell by nano-titanium silicate-functionalized nickel-rich lithium metal oxide cathodes. Further ex situ analyses indicated that the particle hardness of the nano-titanium silicate-functionalized nickel-rich lithium metal oxide cathode materials was maintained, and decomposition of the electrolyte by the dissolution of transition metals was thoroughly inhibited even after 100 cycles. Based on these results, we concluded that the use of nano-titanium silicate as a coating material for nickel-rich lithium metal oxide cathode materials is an effective way to enhance the cycling performance of lithium-ion batteries.

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Array geometry dictates electrochemical performance of Ge nanowire lithium ion battery anodes

Abstract: Scientific literature shows a substantial study-to-study variation in the electrochemical lithiation performance of “1-D” nanomaterials such as Si and Ge nanowires or nanotubes.

Cited by 33 publications

References 116 publications

Beads-Milling of Waste Si Sawdust into High-Performance Nanoflakes for Lithium-Ion Batteries

Beads-Milling of Waste Si Sawdust into High-Performance Nanoflakes for Lithium-Ion Batteries

Construction of Co3O4 nanotubes as high-performance anode material for lithium ion batteries

Interface-Stabilized Layered Lithium Ni-Rich Oxide Cathode via Surface Functionalization with Titanium Silicate

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