Tin-Coated Viral Nanoforests as Sodium-Ion Battery Anodes
- 13 March 2013
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Nano
- Vol. 7 (4), 3627-3634
- https://doi.org/10.1021/nn400601y
Abstract
Designed as a high-capacity alloy host for Na-ion chemistry, a forest of Sn nanorods with a unique core–shell structure was synthesized on viral scaffolds, which were genetically engineered to ensure a nearly vertical alignment upon self-assembly onto a metal substrate. The interdigital spaces thus formed between individual rods effectively accommodated the volume expansion and contraction of the alloy upon sodiation/desodiation, while additional carbon-coating engineered over these nanorods further suppressed Sn aggregation during extended electrochemical cycling. Due to the unique nanohierarchy of multiple functional layers, the resultant 3D nanoforest of C/Sn/Ni/TMV1cys, binder-free composite electrode already and evenly assembled on a stainless steel current collector, exhibited supreme capacity utilization and cycling stability toward Na-ion storage and release. An initial capacity of 722 mA·h (g Sn)−1 along with 405 mA·h (g Sn)−1 retained after 150 deep cycles demonstrates the longest-cycling nano-Sn anode material for Na-ion batteries reported in the literature to date and marks a significant performance improvement for neat Sn material as alloy host for Na-ion chemistry.Keywords
This publication has 54 references indexed in Scilit:
- A New Class of Lithium and Sodium Rechargeable Batteries Based on Selenium and Selenium–Sulfur as a Positive ElectrodeJournal of the American Chemical Society, 2012
- High capacity, reversible alloying reactions in SnSb/C nanocomposites for Na-ion battery applicationsChemical Communications, 2012
- Layered Na[Ni1/3Fe1/3Mn1/3]O2 cathodes for Na-ion battery applicationElectrochemistry Communications, 2012
- Three-Dimensional Ni/TiO2 Nanowire Network for High Areal Capacity Lithium Ion Microbattery ApplicationsNano Letters, 2011
- Carbon coated Na3V2(PO4)3 as novel electrode material for sodium ion batteriesElectrochemistry Communications, 2011
- Fluorinated Ethylene Carbonate as Electrolyte Additive for Rechargeable Na BatteriesACS Applied Materials & Interfaces, 2011
- Reversible Sodium Ion Insertion in Single Crystalline Manganese Oxide Nanowires with Long Cycle LifeAdvanced Materials, 2011
- Highly patterned cylindrical Ni–Sn alloys with 3-dimensionally ordered macroporous structure as anodes for lithium batteriesElectrochimica Acta, 2010
- Virus-Enabled Silicon Anode for Lithium-Ion BatteriesACS Nano, 2010
- Electrodeposition and lithium storage performance of three-dimensional porous reticular Sn–Ni alloy electrodesElectrochimica Acta, 2009