TY  - SER
AU  - Roiban,Lucian
AU  - Wada,Takeshi
AU  - Kato,Hidemi
AU  - Cadete Santos Aires,Francisco J.
AU  - Curelea,Sergiu
AU  - Epicier,Thierry
AU  - Maire,Eric
AU  - Koneti,Siddardha
TI  - Three dimensional analysis of nanoporous silicon particles for Li-ion batteries
KW  - электронные томографы
KW  - литий-ионные аккумуляторы
KW  - нанопористый кремний
KW  - трехмерный анализ
KW  - статьи в журналах
N1  - Библиогр.: 30 назв
N2  - Bulk nanoporous silicon prepared by top-down method form Li-ion batteries was investigated combining different conventional technique such as nitrogen physisorption and high resolution electron microscopy with electron tomography. It was found that the Si nanorods are forming porous aggregates with a half of the volume of the particle occupied by pores. The nanorods are preferentially oriented along the main axis of the aggregate. The porosity and the lack of compaction between the aggregates provide space for the Si expansion during the lithiation process.

 It was found that the Si nanorods mainly expose the {111} family plane as an external faces. The size distributions of the porous and solid phases in a granule were found to be similar. The pores represent 50% of the total volume of an aggregate. The shape orientation of the particles was quantified and it was found to exhibit a narrow distribution
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000577227
ER  -