Park, Jeong Min Cho, Jae-Hyun Ha, Jung Hoon Kim, Hae-Sik Kim, Sung-Wook Lee, Jaejun Chung, Kyung Yoon Cho, Byung-Won Choi, Heon-Jin 2024-01-20T01:04:20Z 2024-01-20T01:04:20Z 2021-09-04 2017-06-23 0957-4484 https://pubs.kist.re.kr/handle/201004/122615 Silicon (Si) has a large theoretical capacity of 4200 mAhg(-1) and has great potential as a high-performance anode material for Li ion batteries. (LIBs). Meanwhile, nanostructures can exploit the potential of Si and, accordingly, many zero-dimensional (0D) and one-dimensional (1D) Si nanostructures have been studied. Herein, we report on two-dimensional (2D) Si nanostructures, Si nanosheets (SiNSs), as anodes for LIBs. These 2D Si nanostructures, with a thickness as low 5 nm and widths of several micrometers, show reversible crystalline-amorphous phase transformations with the lithi-/delithiation by the dimensionality of morphology and large surface area. The reversible crystalline-amorphous phase transformation provides a structural stability of Li+ insertions and makes SiNSs promising candidates for reliable high-performance LIBs anode materials. English IOP PUBLISHING LTD LI-ION BATTERIES SILICON NANOSHEETS NANOWIRES ANODE PERFORMANCE INSERTION FRACTURE ELECTRODE Reversible crystalline-amorphous phase transformation in Si nanosheets with lithi-/delithiation Article 10.1088/1361-6528/aa6dad 1 NANOTECHNOLOGY, v.28, no.25 NANOTECHNOLOGY 28 25 scie scopus 000402515300001 2-s2.0-85020438742 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Science & Technology - Other Topics Materials Science Physics Article LI-ION BATTERIES SILICON NANOSHEETS NANOWIRES ANODE PERFORMANCE INSERTION FRACTURE ELECTRODE two-dimensional nanostructures silicon nanosheets recrystallization reversible phase transition lithium ion batteries