iMechanica - Comments for "Concurrent reaction and plasticity during initial lithiation of crystalline silicon in lithium-ion batteries"

Re. Question

Kejie Zhao — Tue, 29 Nov 2011 17:54:51 +0000

In reply to Question

Hi Dibakar,

Thanks for the questions. We considered the amorphous lithiated silicon shell and crystalline silicon core is seperated by a sharp phase boundary, without more experimental evidence, we didn't describe details of such boundary, for example, how lithium assiste the reconstruction of the structure, if a small amount of lithium is dissolved in the crystalline silicon lattice ahead of reaction front, etc. There are still quite a bit open questions to make the picture clearer. Please let me know if I answered your concerns.

-Kejie

Question

Dibakar Datta — Tue, 29 Nov 2011 05:01:30 +0000

In reply to Concurrent reaction and plasticity during initial lithiation of crystalline silicon in lithium-ion batteries

Kejie,

You have mentioned in the introduction section that the phase boundary between the crystalline silicon and the lithiated silicon has a thickness of ~1 nm as observed in experiment . However, in your model, you have not considered phase boundary. You have considered only LixSi zone . Any explanation ?

I am trying to do some work related to your work. Thanks .

Regards,
Dibakar Datta
Email : dibakar_datta@brown.edu
PhD Student ; Major : Solid Mechanics
Shenoy Research Group
Brown University
Providence 02912 , USA

Thank you

Kejie Zhao — Mon, 28 Nov 2011 00:27:00 +0000

In reply to Great Work

Thank you Dibakar, hope you can find it interesting. -Kejie

Great Work

Dibakar Datta — 太阳,2011年11月27日22:42:16 + 0000

In reply to Concurrent reaction and plasticity during initial lithiation of crystalline silicon in lithium-ion batteries

Congrats Kejie .. Great Work ...

Regards,
Dibakar Datta
Email : dibakar_datta@brown.edu
PhD Student ; Major : Solid Mechanics
Shenoy Research Group
Brown University
Providence 02912 , USA