Si6H12/Polymer Inks for Electrospinning a-Si Nanowire Lithium Ion Battery Anodes

Journal Article · Wed Aug 04 04:00:00 EDT 2010 · Electrochemical and Solid-State Letters

DOI:https://doi.org/10.1149/1.3466994· OSTI ID:1039855

Schulz, Douglas L; Hoey, Justin; Smith, Jeremiah; Elangovan, Arumugasamy; Wu, Xiangfa; Akhatov, Iskander; Payne, Scott; Moore, Jayma; Boudjouk, Philip; Pederson, Larry; Xiao, Jie; Zhang, Jiguang

Amorphous silicon nanowires 'a-SiNWs' have been prepared by electrospinning a liquid silane-based precursor. Cyclohexasilane 'Si6H12' was admixed with poly-methyl methacrylate (PMMA) in toluene giving an ink that was electrospun into the Si6H12/PPMA wires with diameters of 50-2000 nm. Raman spectroscopy revealed that thermal treatment at 350 C transforms this deposit into a-SiNWs. These materials were coated with a thin carbon layer and then tested as half-cells where a reasonable plateau in electrochemical cycling was observed after an initial capacity fade. Additionally, porous a-SiNWs were realized when the thermally decomposable binder polypropylene carbonate/polycyclohexene carbonate was used as the polymer carrier.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1039855
• Report Number(s): PNNL-SA-74774
• Journal Information: Electrochemical and Solid-State Letters, Journal Name: Electrochemical and Solid-State Letters Journal Issue: 10 Vol. 13
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
AMORPHOUS STATE
ANODES
BINDERS
CAPACITY
CARBON
CARBONATES
ELECTROCHEMISTRY
INKS
LITHIUM IONS
METHACRYLATES
PMMA
POLYMERS
POLYPROPYLENE
PRECURSOR
RAMAN SPECTROSCOPY
SILICON
TOLUENE
silicon
Li-0ion battery
energy storage