TY - JOUR
T1 - Thin film a-Si based nano in micro complex structured anodes for high-performance lithium-ion secondary batteries
AU - Shin, Ju Hyeon
AU - Hyun, Seok
AU - Kim, Gyutae
AU - Lee, Heon
N1 - Publisher Copyright:
Copyright © 2016 American Scientific Publishers.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016/1
Y1 - 2016/1
N2 - The nano in micro complex structure is formed by wet etching, which is a simple, fast, and costeffective process. Thin-film a-Si-based anodes are fabricated by depositing a-Si on a nano in micro complex structured Ni foam current collector, which is performed by low-pressure chemical vapor deposition (LPCVD). Ni foams are then used as current collectors to increase the contact area between the active materials and current collector. This leads to an increase in the loading densities of the active materials. The nano in micro complex structured surface has large surface area with voids, which not only accommodate the volume changes during cycling, but also enhance adhesion between the active materials and current collector. As a result, after 190 cycles, a cell with etched Ni foam anode shows about 10% higher discharge capacity compare to a cell with Ni foil anode.
AB - The nano in micro complex structure is formed by wet etching, which is a simple, fast, and costeffective process. Thin-film a-Si-based anodes are fabricated by depositing a-Si on a nano in micro complex structured Ni foam current collector, which is performed by low-pressure chemical vapor deposition (LPCVD). Ni foams are then used as current collectors to increase the contact area between the active materials and current collector. This leads to an increase in the loading densities of the active materials. The nano in micro complex structured surface has large surface area with voids, which not only accommodate the volume changes during cycling, but also enhance adhesion between the active materials and current collector. As a result, after 190 cycles, a cell with etched Ni foam anode shows about 10% higher discharge capacity compare to a cell with Ni foil anode.
KW - Lithium-Ion Secondary Battery
KW - Nano in Micro Complex Structure
KW - Ni Foam
KW - Thin Film a-Si Anode
KW - Wet Etch Process
UR - http://www.scopus.com/inward/record.url?scp=84988841505&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84988841505&partnerID=8YFLogxK
U2 - 10.1166/nnl.2016.2121
DO - 10.1166/nnl.2016.2121
M3 - Article
AN - SCOPUS:84988841505
SN - 1941-4900
VL - 8
SP - 104
EP - 108
JO - Nanoscience and Nanotechnology Letters
JF - Nanoscience and Nanotechnology Letters
IS - 1
ER -