Si nanoparticle-decorated Si nanowire networks for Li-ion battery anodes.
We designed and fabricated binder-free, 3D porous silicon nanostructures for Li-ion battery anodes, where Si nanoparticles electrically contact current collectors via vertically grown silicon nanowires. When compared with a Si nanowire anode, the areal capacity was increased by a factor of 4 without having to use long, high temperature steps under vacuum that vapour-liquid-solid Si nanowire growth entails.
Hu
Liangbing
L
Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA.
Wu
Hui
H
Hong
Seung Sae
SS
Cui
Lifeng
L
McDonough
James R
JR
Bohy
Sy
S
Cui
Yi
Y
D011211:Electric Power Supplies; D004566:Electrodes; D007477:Ions / Q000737:chemistry; D008094:Lithium / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D016062:Porosity; D012825:Silicon / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature
D007477:Ions; D008094:Lithium; D012825:Silicon