Advanced Energy Materials

Cover image for Vol. 7 Issue 19

3_11/2013Lithium-Ion Batteries: Advanced Energy-Storage Architectures Composed of Spinel Lithium Metal Oxide Nanocrystal on Carbon Textiles (Adv. Energy Mater. 11/2013)

On page 1484, Guozhong Cao, Xiaogang Zhang, and co-workers describe a general strategy for in situ growth of lithium metal oxide nanocrystals on carbon textiles as flexible, self-supported electrodes for lithium-ion batteries. The unique lithium metal oxide/carbon textile electrodes have ultrahigh rate capability and a significantly enhanced cycling performance, which makes them highly attractive for high-power, flexible, lithiumion batteries.

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3_11i/2013Porous Materials: Multi-Scale Pore Generation from Controlled Phase Inversion: Application to Separators for Li-Ion Batteries (Adv. Energy Mater. 11/2013)

Porous separators obtained via phase inversion are promising candidates for alternatives to commercialized polyethylene (PE) separators because of their low production cost and high thermal stability. On page 1417, Min Kim and Jong Hyeok Park demonstrate a novel and simple approach to fabricate a new separator with multiscale pore structure for lithium-ion batteries. The multiscale pore structure obtained by controlled phase inversion plays a role in solving several drawbacks of commercialized PE separators for lithium-ion batteries.

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3_11b/2013Light Trapping: Light Trapping in Ultrathin Monocrystalline Silicon Solar Cells (Adv. Energy Mater. 11/2013)

On page 1401, Debashis Chanda, John A. Rogers, and co-workers report ultrathin (3 μm) singlecrystalline silicon solar cells with electromagnetically optimized light-trapping schemes that offer greatly enhanced absorption and corresponding improvements in efficiency of cell performance. Optically optimized cells of this type yield energy conversion efficiencies that are ≈190% higher compared to otherwise identical cells that do not exploit light trapping features, and an efficiency of 8.5% is recorded in this ultrathin film geometry

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