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918334

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High-performance silicon anode

100 nm silicon particles in crosslinked conducting polyanaline matrix

Synonym(e):

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

UNSPSC-Code:
12352103
NACRES:
NA.23

CHF 393.00

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Qualitätsniveau

100

Form

powder

Farbe

dark

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Anwendung

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.[1]
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 [1] increase the capacity of conventional lithium ion battery, and [2] improve the cycle-life performance of Si-based anodes.[2][3][4][5][6]

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

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Deformation and stress in electrode materials for Li-ion batteries.
Mukhopadhyay M, et al.
Progress in Materials Science, 63, 58-116 (2014)
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
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.
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
Hui Wu et al.
Nature communications, 4, 1943-1943 (2013-06-05)
Silicon has a high-specific capacity as an anode material for Li-ion batteries, and much research has been focused on overcoming the poor cycling stability issue associated with its large volume changes during charging and discharging processes, mostly through nanostructured material
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