Solvothermal synthesis and ex situ XRD study of nano-Ni3Sn2 used as an anode material for lithium-ion batteries

Qin, Haiying; Zhao, Xinbing; Nian-ping, Jiang; Li, Zhou Peng

doi:10.1016/j.jpowsour.2007.05.097

Cited by 28 publications

(26 citation statements)

References 25 publications

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“…Examples of ex-situ analysis include: x-ray diffraction (XRD) [14,16,26,27], X-ray photoelectron spectroscopy (XPS) [28,29], and scanning electron microscopy (SEM) [13,[30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries

Merla

Yufit

et al. 2016

Journal of Power Sources

127

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 Accelerated ageing of lithium-ion cells under various storage/loading conditions.  Degradation analysis was performed using various in-situ diagnosis methods.  Differential thermal voltammetry (DTV) suitable for electric vehicle application.  State-of-health estimation through quantitative analyses of DTV peak evolution. AUTHOR E-MAIL ADDRESSYu Merla -yu.merla09@imperial.ac.uk Billy Wu -billy.wu@imperial.ac.uk Vladimir Yufit -v.yufit@imperial.ac.uk Nigel P. Brandon -n.brandon@imperial.ac.uk Ricardo F. Martinez-Botas -r.botas@imperial.ac.uk Gregory J. Offer -gregory.offer@imperial.ac.uk ABSTRACT Understanding and tracking battery degradation mechanisms and adapting its operation have become a necessity in order to enhance battery durability. A novel use of differential thermal voltammetry (DTV) is presented as an in-situ state-of-health (SOH) estimator for lithium-ion batteries.Accelerated ageing experiments were carried on 5Ah commercial lithium-ion polymer cells operated and stored at different temperature and loading conditions. The cells were analysed regularly with various existing in-situ diagnosis methods and the novel DTV technique to determine their SOH. The diagnosis results were used collectively to elaborate the degradation mechanisms inside the cells. The DTV spectra were decoupled into individual peaks, which each represent particular phases in the negative and positive electrode combined. The peak parameters were used to quantitatively analyse the battery SOH. 2A different cell of the same chemistry with unknown degradation history was then analysed to explore how the cell degraded. The DTV technique was able to diagnose the cell degradation without relying on supporting results from other methods nor previous cycling data. KEYWORDS:

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“…Examples of ex-situ analysis include: x-ray diffraction (XRD) [14,16,26,27], X-ray photoelectron spectroscopy (XPS) [28,29], and scanning electron microscopy (SEM) [13,[30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries

Merla

Yufit

et al. 2016

Journal of Power Sources

127

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“…It has been generally found that the cycling of Li cells bearing low-voltage active nanomaterials (below 1.5 V), results in a drastic capacity fade between the first and the second discharge, e.g. from 380 mAh/g to 136 mAh/g in Ni 3 Sn 2 (7), and from 950 mAh/g to 650 mAh/g in CoO (2). This large irreversible capacity has been attributed to the electrolyte decomposition on the nanoparticles´ surface.…”

Section: Introductionmentioning

confidence: 99%

Reactivity of Nano-LaPO₄ Composites in Lithium Cells

et al. 2011

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Electrodes consisting of composites of nanosized-LaPO 4 /CarbonSuper P yield irreversible capacities as large as 872 mAh/g carbon (down to 0.2 V), which would be equivalent to the reaction of 0.9 lithium ions with LaPO 4 . Increasing the crystallite size of LaPO 4 drastically decreases the specific capacity delivered by the cell, reaching a minimum value of 330 mAh/g carbon for micrometerLaPO 4 . A significant capacity is also detected for nanosized LaPO 4 /Carbon-KS6 and LaPO 4 /Ni electrodes.An in situ XRD investigation proves that the bulk of LaPO 4 does not react with lithium, evidencing that LaPO 4 is electrochemically inactive. The reactivity of the electrode is likely due to the electrolyte decomposition on the surface of both the electronic conductor additives (C or Ni) and the LaPO 4 nanoparticles.

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“…Several syntheses for Ni–Sn nanoparticles were reported. For example, nanocrystalline β‐Ni 3 Sn 2 was obtained by co‐reduction of SnCl 2 and NiCl 2 with NaBH 4 in ethanol . This method offered the crystallization of the high‐temperature phase in form of agglomerated granule‐like particles 30 nm and smaller in diameter.…”

Section: Resultsmentioning

confidence: 99%

“…For example, nanocrystalline -Ni 3 Sn 2 was obtained by co-reduction of SnCl 2 and NiCl 2 with NaBH 4 in ethanol. [41] This method offered the crystallization of the high-temperature phase in form of agglomerated granule-like particles 30 nm and smaller in diameter. The coreduction of SnCl 2 and NiCl 2 or Ni(OAc) 2 with NaBH 4 in tetraethylene glycol yielded nanocrystalline Ni 3 Sn 4 .…”

Section: Synthesis Of T-sn Phasesmentioning

confidence: 99%

Refinement of the Microwave‐Assisted Polyol Process for the Low‐Temperature Synthesis of Intermetallic Nanoparticles

et al. 2017

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The microwave-assisted polyol process was applied to synthesize phase-pure micro- or nanocrystalline intermetallic phases in the systems T-M (T = Co, Ni, Rh, Pd, Ir, Pt and M = Sn, Sb, Pb, Bi). Reaction temperatures range between 240 and 300 degrees C, and reaction times of a few minutes up to 1 h are sufficient. For optimization of the syntheses, the reaction temperature, reaction time, and metal precursors were changed. To obtain phase-pure samples the process was further modified by the addition of potassium hydroxide, oleylamine, or oleic acid. Single-phase powders of a variety of intermetallic compounds were synthesized. Although not stable at the temperature of synthesis, high-temperature phases are accessible as well. The microwave-assisted polyol process opens up the possibility to synthesize intermetallic compounds through a fast and easily applicable one-step route, without utilization of strong and often toxic reducing agents

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Solvothermal synthesis and ex situ XRD study of nano-Ni3Sn2 used as an anode material for lithium-ion batteries

Cited by 28 publications

References 25 publications

Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries

Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries

Reactivity of Nano-LaPO₄ Composites in Lithium Cells

Refinement of the Microwave‐Assisted Polyol Process for the Low‐Temperature Synthesis of Intermetallic Nanoparticles

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Solvothermal synthesis and ex situ XRD study of nano-Ni3Sn2 used as an anode material for lithium-ion batteries

Cited by 28 publications

References 25 publications

Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries

Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries

Reactivity of Nano-LaPO4 Composites in Lithium Cells

Refinement of the Microwave‐Assisted Polyol Process for the Low‐Temperature Synthesis of Intermetallic Nanoparticles

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Reactivity of Nano-LaPO₄ Composites in Lithium Cells