Electrochemical characterization of Ti–Si and Ti–Si–Al alloy anodes for Li-ion batteries produced by mechanical ball milling

Lee, Kyoung-Muk; Lee, Yoosung; Kim, Yeon-Wook; Sun, Yang‐Kook; Lee, Sung-Man

doi:10.1016/j.jallcom.2008.04.102

Cited by 60 publications

(33 citation statements)

References 23 publications

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“…It has been reported that some of this doping could reduce the ignition temperature for SHS of titanium silicide 24,25) or improve the performance of the materials. 1,3,26) The dopants in the SHS method were usually in the form of extra pure materials, rending this process cost ineffective. In contrast, the dopants in the pyro metallurgical process can be low purity or inexpensive crude compounds, resulting in reduced expense.…”

Section: Practical Reactionsmentioning

confidence: 99%

“…2,7) Historically, Ti 5 Si 3 has been produced primarily by powder metallurgy methods. 8) Though extensive research was performed on mechanical alloying 3,810) and combustion synthesis (SHS), 7,1114) these methods use ultrapure elementary substances of Ti and Si, which are expensive. Another process using electrochemical reduction 1517) was developed in recent years, but it will take a considerably long period to be industrialized.…”

Section: Introductionmentioning

confidence: 99%

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Reduction of Titanium Oxide by Molten Silicon to Synthesize Titanium Silicide

Chen

Tan

et al. 2015

Mater. Trans.

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Titanium silicide was synthesized via the reaction of titanium oxide bearing slag and molten silicon. Results indicated that titanium oxide in slag was reduced by silicon with an intermetallic bulk being formed. This novel synthesis method is a three-layer refining process that is much simpler and could reduce the cost of titanium silicide production significantly. Moreover, this novel and low-cost synthesis method of Ti 5 Si 3 provides a new way to produce high purity titanium.

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Section: Practical Reactionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reduction of Titanium Oxide by Molten Silicon to Synthesize Titanium Silicide

Chen

Tan

et al. 2015

Mater. Trans.

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“…Various Si-based alloys have been studied as anode materials for Li-ion batteries, such as C-Si, 9,10 Cr-Si, 11 Fe-Si, 12,13 Ni-Si, 8,14 TiSi, 15,16 etc. The Cu-Si alloy system differs from other M-Si systems because it has no silicon-rich silicide phase.…”

mentioning

confidence: 99%

Electrochemistry of Cu_xSi_1−xAlloys in Li Cells

Liu

Ellis

et al. 2016

J. Electrochem. Soc.

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The structure and electrochemistry in lithium cells of sputtered thin films and ball milled alloys in the Cu-Si system (0 ≤ x ≤ 0.60 in CuxSi1−x) were investigated. Both thin films and ball milled Cu-Si alloys showed the co-existence of amorphous Si and a nanocrystalline Cu3Si phase. The lithiation potential of Cu-Si alloys was found to be significantly shifted to potentials below that of pure Si. In addition, the Cu3Si phase was found to be involved in the electrochemical reaction of the alloys with lithium, however not all of the Si could be reacted with Li to its full theoretical extent. This suggests that a ternary Cu-Li-Si phase may be formed at full lithiation of these alloys.

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“…The magnetron sputtering [21][22][23] of co-deposition can provide composite of two kinds of materials, such as Si-Al. Ballmilling [29][30][31] is also an important method for provide composite materials, such as Si-C, Si x Co 0.3 Cu 0.3 Cr 0.6 Al 0.2/ modified graphite sphere composties, etc., through blending and doping various elements in the Silicon materials. Si-Al thin film [22,23] 1500 ~ 50 cycles 2258~10,1500~350 (0.5C) Catalytic etching (HF-AgNO3, etc.…”

Section: Preparation Techniques For Various Nanostructure Silicon Anomentioning

confidence: 99%

“…Ti-Si and Ti-Si-Al alloy [29] Si/carbon coating [30] SixCo0.3Cu0.3Cr0.6Al0.2/modified graphite sphere [31] 500~40 cycles 620~100 cycles…”

Section: Preparation Techniques For Various Nanostructure Silicon Anomentioning

confidence: 99%

The Development of Silicon Nanocomposite Materials for Li-Ion Secondary Batteries

Wang¹,

Chen²,

Lü³

2011

TOMSJ

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Abstract:With the rapid progress and wide application of Li-ion batteries, commercial graphite anode can not satisfy the increasing demand for higher capacities. Like other anode materials with higher capacities, silicon materials as anodes remain serious problems for their large volume variations and poor cyclabilities during cycling. One of key problem is how to stabilize the performances of Si anode materials. Various influencing factors of volume variation of silicon anode materials have been reviewed, which consist of discharging voltage, amorphous or crystalline type, tube or pore microstructure, interlayer adhesion, buffering and protective layer materials and conductive agents. Another hot issue is on the preparation methods for silicon anode materials with high performance. It covers not only the technics of high purity silicon materials, including the predominant Siemens process of electronic-grade silicon, but also the techniques of silicon film anodes, which consists of butyl-capped silicon precursor, the template methods of nanostructure, magnetron sputtering, ball-milling. From the screening of existing silicon anode materials in the literatures, the preparation methods for promising Si anode materials and their prospects have been offered.

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Electrochemical characterization of Ti–Si and Ti–Si–Al alloy anodes for Li-ion batteries produced by mechanical ball milling

Cited by 60 publications

References 23 publications

Reduction of Titanium Oxide by Molten Silicon to Synthesize Titanium Silicide

Reduction of Titanium Oxide by Molten Silicon to Synthesize Titanium Silicide

Electrochemistry of Cu_xSi_1−xAlloys in Li Cells

The Development of Silicon Nanocomposite Materials for Li-Ion Secondary Batteries

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Electrochemical characterization of Ti–Si and Ti–Si–Al alloy anodes for Li-ion batteries produced by mechanical ball milling

Cited by 60 publications

References 23 publications

Reduction of Titanium Oxide by Molten Silicon to Synthesize Titanium Silicide

Reduction of Titanium Oxide by Molten Silicon to Synthesize Titanium Silicide

Electrochemistry of CuxSi1−xAlloys in Li Cells

The Development of Silicon Nanocomposite Materials for Li-Ion Secondary Batteries

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Product

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Electrochemistry of Cu_xSi_1−xAlloys in Li Cells