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Getting More Life out of Lithium-ion Batteries
Date:7/24/2014

Livermore, California (PRWEB) July 24, 2014

Your cell phone may stay charged longer due to advances in modeling lithium-ion battery storage capacity.

New research indicates that lithium-ion batteries could benefit from a theoretical model created at Lawrence Livermore National Laboratory and Rice University that predicts how carbon components will perform as electrodes.

The growing demand for energy storage emphasizes the urgent need for higher-performance batteries. Several key characteristics of lithium-ion battery performance -- capacity, voltage and energy density -- are ultimately determined by the binding between lithium ions and the electrode material. Yet subtle changes in the structure, chemistry and shape of an electrode can significantly affect how strongly lithium ions bond to it, in a way researchers don't fully understand.

The new model predicts the strength of this binding based on intrinsic characteristics of carbon materials used as battery anodes.

The research appears in the July 11 edition of the journal Physical Review Letters. Lawrence Livermore scientist Brandon Wood and Rice theoretical physicist Boris Yakobson led the study.

The team's theory included calculation
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