Magnesium silicide as a negative electrode material for lithium-ion batteries

Roberts, G. A.; Cairns, Elton J.; Reimer, Jeffrey A.

doi:10.1016/s0378-7753(02)00207-0

Cited by 106 publications

(91 citation statements)

References 7 publications

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“…(ii) Silicon alloys. Silicon alloys such as Mg 2 Si [12], NiSi and FeSi [13] have better cycling performance than silicon because of their lower volume change. (iii) Amorphous silicon materials.…”

Section: Introductionmentioning

confidence: 99%

Binder effect on cycling performance of silicon/carbon composite anodes for lithium ion batteries

et al. 2006

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The cycling performance of a silicon/carbon composite anode has been significantly enhanced by using acrylic adhesive and modified acrylic adhesive as binder to fabricate the electrodes for lithium ion batteries. The capacity retentions of Si/C composite electrodes bound by acrylic adhesive and modified acrylic adhesive are 79% and 90% after 50 cycles, respectively. These two binders are electrochemically stable in the organic electrolyte in the working window. They also show larger adhesion strength between the coating and the Cu current collector as well as smaller solvent absorption in the electrolyte solvent than polyvinylidene fluoride (PVDF). Furthermore, sodium carboxyl methyl cellulose (CMC) plays an important role on improving the properties of acrylic adhesive, which increases the adhesive strength of acrylic adhesive and improves the activation of the electrodes.

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Section: Introductionmentioning

confidence: 99%

Binder effect on cycling performance of silicon/carbon composite anodes for lithium ion batteries

et al. 2006

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“…Li 12 Si 7 phases are known as Li-Si binary alloy phases. [1][2][3] The theoretical capacity of the most lithiated Li 4.4 Si phase is 4,200 mAh g ¹1 , which is approximately 11 times higher than that of graphite anode (372 mAh g ¹1 ).…”

Section: ¹1mentioning

confidence: 99%

“…Si alloys such as Si-Sn, 9 Si-Ca, 10 Si-Ag, 11 Si-Mg, 12 have been proposed for reducing the volume changes during charging and discharging. However the reversible capacity decreased significantly because of the presence of indifferent metals (e.g.…”

Section: ¹1mentioning

confidence: 99%

Silicon Nano-flake Powder as an Anode for The Next Generation Lithium-ion Batteries: Current Status and Challenges

et al. 2017

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Silicon is electrochemically alloyed and de-alloyed with Li at potentials close to Li + /Li and is widely recognized as the most promising candidate for the anode of LIBs with a high energy density (250-300 Wh kg −1 ) in the next generation. The most serious issue of Si anode is poor capacity retention owing to large volume changes during charging and discharging. We developed Si LeafPowder ® with a nano-flake structure to overcome the poor capacity retention. However Si anodes still have some problems such as large irreversible capacity, ceaseless electrolyte decomposition, swelling of the electrode, etc. for use in high-energy density LIBs in the next generation. In this article, these problems and the challenges to mitigate them are overviewed based on our resent data obtained by Si nano-flakes (Si LeafPowder ® ).

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“…The higher capacity of 'Li-Si-Cr' composite is attributed to insito generated CrSi phase which acts as an inactive conductive matrix along with active Li-Si phase. Mg 2 Si/acetylene black composite reported by (Roberts et al, 2002) delivers an initial discharge capacity ~ 830 mAh g -1 where the Li insertion into Mg 2 Si forms Li 2 MgSi which then tends to decompose into binary alloys, Li-Si and Li-Mg at low potential regions causing capacity degradation with cycling. have also reported on magnesium silicide anode.…”

Section: Silicon Composite Anode Materials -State Of the Artmentioning

confidence: 99%