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918334

Sigma-Aldrich

High-performance silicon anode

100 nm silicon particles in crosslinked conducting polyanaline matrix

Synonyme(s) :

100nm Si, 100nm SiReversible Si, Anode grade, Doped polyaniline, Nano-Si/PANi composite, Si encapsulated in 3D crosslinked polyaniline, Silicon nano particle

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About This Item

Code UNSPSC :
12352103
Nomenclature NACRES :
NA.23

Niveau de qualité

100

Forme

powder

Couleur

dark

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Application

Silicon is a most promising next generation lithium ion battery electrode material but it suffers poor cyclability due to the volume expansion that results in loss of electrical contact and unstable SEI.
This Si composite product is made by encapsulating nano-Si particles in the 3D cross-linked conductive polymer framework. It not only allows fast electrical and ionic transport, but also provides free space to allow giant volume expansion. This Si composite provides a ready-to-use electrochemically active nano-Si anode that would increase the capacity of conventional lithium ion battery, and improve the cycle-life performance of Si-based anodes.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Deformation and stress in electrode materials for Li-ion batteries.
Mukhopadhyay M, et al.
Progress in Materials Science, 63, 58-116 (2014)
Borui Liu et al.
Nano letters, 13(7), 3414-3419 (2013-06-22)
Silicon is considered one of the most promising anode materials for high-performance Li-ion batteries due to its 4200 mAh/g theoretical specific capacity, relative abundance, low cost, and environmental benignity. However, silicon experiences a dramatic volume change (∼300%) during full charge/discharge
Ye Shi et al.
Nano letters, 17(3), 1906-1914 (2017-02-14)
Controlling architecture of electrode composites is of particular importance to optimize both electronic and ionic conduction within the entire electrode and improve the dispersion of active particles, thus achieving the best energy delivery from a battery. Electrodes based on conventional
Fei Zhao et al.
Advanced materials (Deerfield Beach, Fla.), 30(48), e1801796-e1801796 (2018-08-21)
Nanostructured materials are critically important in many areas of technology because of their unusual physical/chemical properties due to confined dimensions. Owing to their intrinsic hierarchical micro-/nanostructures, unique chemical/physical properties, and tailorable functionalities, hydrogels and their derivatives have emerged as an
Ye Shi et al.
Advanced materials (Deerfield Beach, Fla.), 29(22) (2017-03-23)
This study develops a tunable 3D nanostructured conductive gel framework as both binder and conductive framework for lithium ion batteries. A 3D nanostructured gel framework with continuous electron pathways can provide hierarchical pores for ion transport and form uniform coatings
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