Al–Si Thin-Film Negative Electrodes for Li-Ion Batteries

Fleischauer, Michael D.; Obrovac, M. N.; Dahn, J. R.

doi:10.1149/1.2977971

Cited by 49 publications

(29 citation statements)

References 30 publications

(11 reference statements)

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“…76 80 or alloyed with other elements, such as Si. [81][82][83] Due to the large volume expansion associated with lithiation, it also suffers from mechanical degradation, such as cracking. To understand the difference between an Al and a Si anode, we computed the C ij and averaged B, G, E, and ν for crystalline LiAl and Li 9 Al 4 .…”

Section: )mentioning

confidence: 99%

Lithium Concentration Dependent Elastic Properties of Battery Electrode Materials from First Principles Calculations

Hector

James

et al. 2014

J. Electrochem. Soc.

249

146

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This paper aims to help fill a gap in the literature on Li-ion battery electrode materials due to the absence of measured elastic constants needed for diffusion induced stress models. By examining results from new first principles density functional theory (DFT) calculations of LiCoO 2 , LiMn 2 O 4 , (and their delithiated hosts, CoO 2 and MnO 2 ), Li x Al alloys, and data from the extant literature on LiFePO 4 (and FePO 4 ), LiTi 2 O 4 (and Li 2 Ti 2 O 4 ), Li x Si, Li x Sn and lihtium graphite-interaction-compounds, a compelling picture emerges on the dependency of the elastic properties on Li concentration. Specifically, three distinct categories of behavior are found: (a) the averaged Young's moduli change very minimally upon lithiation of the spinel and olivine structures; (b) lithiation induced stiffening is observed only when new and stronger bonds between the Li ions and the host materials are formed in layered compounds; and (c) for alloy-forming electrode materials, such as Si, β-Sn and Al, the averaged Young's moduli of lithiated compounds follow the linear rule of mixtures. The tendency of ductile or brittle behavior electrode materials is investigated with the Pugh criterion, and a ductile to brittle transition was found to occur during lithiation of Al and β-Sn, but not in Si. One of the critical challenges in advanced lithium-ion (Li-ion) batteries is preventing fracture and mechanical failure of electrodes during lithium insertion and de-insertion. Most Li-ion battery electrodes experience volume changes associated with Li concentration changes within the host particles during charging and discharging.1 Graphite, for example, is the most common negative electrode for Li-ion batteries. Its volume increases by as much as 10% when Li intercalates between the sheets of C atoms.2 Compared to graphite, Si can store ∼10 times more Li, but it undergoes a massive volume expansion of the order of 300%.3 The large volume expansion, phase transition, and the associated Li diffusion-induced stresses (DIS) within electrode materials can lead to their fracture and failure which results in battery capacity loss and power fade.Significant progress toward understanding how DIS can be minimized to increase mechanical durability of Li-ion batteries 4-13 has been made. For example, Verbrugge and Cheng 11 modeled the evolution of stress and strain energy within a spherically-shaped electrode particle under either galvanostatic or potentiostatic operation. They also investigated the effects of surface energy and surface elasticity on the stress evolution in spherical electrodes.10 Wolfenstine 14 demonstrated that using Young's modulus, fracture toughness, and volume change, a critical particle size needed to lower capacity fade could be estimated with an analytical model. Recent models have been more material specific. Woodford et al. 15 further derived a failure criterion for crack propagation in individual Li x Mn 2 O 4 electrode particles during galvanostatic charging based on fracture mechanics. Using a combination...

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Section: )mentioning

confidence: 99%

Lithium Concentration Dependent Elastic Properties of Battery Electrode Materials from First Principles Calculations

Hector

James

et al. 2014

J. Electrochem. Soc.

249

146

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“…In addition, ductile Al works as a buffer, placed between Si films to form a multilayer structure for improving the electronic conductivity. The total thickness of Al film reaches 10 nm [116][117][118][119][120]. The anode has been tested in LIBs.…”

Section: Al-si Alloymentioning

confidence: 99%

Aluminum-based materials for advanced battery systems

Qiu

Zhao

et al. 2017

Sci. China Mater.

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There has been increasing interest in developing micro/nanostructured aluminum-based materials for sustainable, dependable and high-efficiency electrochemical energy storage. This review chiefly discusses the aluminum-based electrode materials mainly including Al2O3, AlF3, AlPO4, Al(OH)3, as well as the composites (carbons, silicons, metals and transition metal oxides) for lithium-ion batteries, the development of aluminum-ion batteries, and nickel-metal hydride alkaline secondary batteries, which summarizes the methodologies, related charge-storage mechanisms, the relationship between nanostructures and electrochemical properties found in recent years, latest research achievements and their potential applications. In addition, we raise the relevant challenges in recently developed electrode materials and put forward new ideas for further development of micro/nanostructured aluminum-based materials in advanced battery systems.

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“…[32]. 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.…”

Section: Preparation Techniques For Various Nanostructure Silicon Anomentioning

confidence: 99%

“…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%

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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Al–Si Thin-Film Negative Electrodes for Li-Ion Batteries

Abstract: Thin-film normalAl1−xnormalSix(0 Show more

Cited by 49 publications

References 30 publications

Lithium Concentration Dependent Elastic Properties of Battery Electrode Materials from First Principles Calculations

Lithium Concentration Dependent Elastic Properties of Battery Electrode Materials from First Principles Calculations

Aluminum-based materials for advanced battery systems

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

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