Low-cost open-space scaffold structure for high-capacity silicon anode

Aloni, Niv; Golodnitsky, Diana; Peled, E.

doi:10.1016/j.ssi.2018.02.011

Solid State Ionics

2018

DOI: 10.1016/j.ssi.2018.02.011

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Low-cost open-space scaffold structure for high-capacity silicon anode

Niv Aloni

Diana Golodnitsky

E. Peled

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Cited by 3 publications

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“…[15] Other approaches, for example, use a stabilizing matrix of conductive 3D carbon fibers to minimize the formation of a secondary solid electrolyte interphase (SEI) on the Si nanoparticles. [16] The present study is aimed at using monocrystalline wafergrade Si from semiconductor industry [17] as powerful anode material in an on-silicon-chip microbattery with fundamentally new target applications. Here, in the mm-sized battery electrically highly conductive single crystalline silicon acts as anode material that is characterized by a low specific area; appropriate formation and electrochemical activation steps were used to exploit its full storage potential.…”

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confidence: 99%

A Lithium‐Silicon Microbattery with Anode and Housing Directly Made from Semiconductor Grade Monocrystalline Si

Sternad

Hirtler

Sorger

et al. 2021

Adv Materials Technologies

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The development of systems that can economically convert and store electricity, preferably from solar energy, are urgently needed to address the numerous problems humankind is faced with in the centuries to come. [1] Lithium-ion batteries belong to the family of devices that take advantage of electrochemical reactions to store energy. [2][3][4][5][6] Because of its light weight and the fact that Li + ions are fast and small charge carriers, the development of lithium-ion batteries is a success story par excellence which was recognized by the Nobel prize in chemistry awarded to J. B. Goodenough, M. S. Whittingham, and A. Yoshino in 2019. In terms of energy density, the level of efficiency and cycleability, that is, the ability to be effectively charged and discharged, lithium-based batteries are superior not only to other battery chemistries but also to systems that rely on hydrogen conversion.So far, different types of lithium-based batteries, such as those using insertion hosts or conversion materials, have been presented. [7,8] Each year hundreds of studies appear that report on enhancements in materials performance by using either new or improved compounds or by taking benefit from clever morphologies. While much progress has been reported for the positive electrode, that is, the cathode side of a battery, [6] in most of the commercial batteries, graphite is still used as the main component of the anode material. [9] Modern anode composite materials tale advantage of a few weight percent of silicon to enhance the energy density of the battery. Of course, such approaches need a well-balanced cathode side to maximize the performance of the final full cell. The tempting lithium storage capability of 3579 mAh g −1 in the case of silicon is the reason behind why battery researchers dream of using Si as the electrochemically active anode material. [10] The use of pure Si, more or less independent of its morphology, is hindered by the fact that during lithiation the anode side experience an enormous volume expansion of up to 300%. [8] As a consequence, irreversible damages such as cracks and delamination drastically reduce the lifetime of such systems. Hence, bringing under control the cycling properties of Si is rather challenging as it suffers, in electrochemical terms, from low capacity retentions and poor Coulombic efficiencies. In particular, large per-cycle lithium losses are an issue when Si is Miniaturized and rechargeable energy storage systems, which easily power smart and (in vivo) sensors or the wirelessly networked transmitting devices of the so-called internet of things, are expected to open unprecedented ways for how information can be shared autonomously. On the macroscale, such battery-powered devices have already revolutionized our daily life by the use of mobile phones and portable computers. The eagerly-awaited advent of sufficiently powerful and long-living microbatteries will definitely make our lives more comfortable, especially in sectors such as medicine, security, autonomous driving or artif...

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mentioning

confidence: 99%

A Lithium‐Silicon Microbattery with Anode and Housing Directly Made from Semiconductor Grade Monocrystalline Si

Sternad

Hirtler

Sorger

et al. 2021

Adv Materials Technologies

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Mild strategy for generating rich void space for nano-Si/C composites to accommodate the large volume expansion during alloying/dealloying for lithium-ion batteries

Zhang

Wang

et al. 2021

Journal of Alloys and Compounds

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Vermiculite derived porous silicon nanosheet as a scalable and low cost anode material for lithium-ion batteries

Yue

Abulikemu

et al. 2019

Journal of Power Sources

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Low-cost open-space scaffold structure for high-capacity silicon anode

Cited by 3 publications

References 18 publications

A Lithium‐Silicon Microbattery with Anode and Housing Directly Made from Semiconductor Grade Monocrystalline Si

A Lithium‐Silicon Microbattery with Anode and Housing Directly Made from Semiconductor Grade Monocrystalline Si

Mild strategy for generating rich void space for nano-Si/C composites to accommodate the large volume expansion during alloying/dealloying for lithium-ion batteries

Vermiculite derived porous silicon nanosheet as a scalable and low cost anode material for lithium-ion batteries

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