Wiring zinc in three dimensions re-writes battery performance-dendrite-free cycling
By Parker, Joseph F.; Chervin, Christopher N.; Nelson, Eric S.; Rolison, Debra R. & Long, Jeffrey W.
Published in Energy Environ. Sci.
The Royal Society of Chemistry
2014
Abstract
Zinc-based batteries offer a safe, inexpensive alternative to fire-prone lithium-based batteries, but zinc-based batteries do not exhibit sufficient rechargeability-yet. Breaking through the centuries-old roadblock to zinc-based rechargeable batteries requires rethinking the electrode structure in order to control how zinc converts to zinc oxide during battery discharge and how the oxide is reversed back to metal upon recharging. We address the problems of inefficient zinc utilization and limited rechargeability by redesigning the zinc electrode as a porous, monolithic, three-dimensional (3D) aperiodic architecture. Utilization approaches 90% (728 mA h gZn-1) when the zinc sponge " is used as the anode in a primary (single-use) zinc-air cell. To probe rechargeability of the 3D Zn sponge
Microsoft is Ending Support for Windows 7
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