Better Battery Performance, Longer Life from New Lithium Ion Anode

"Development of a novel approach to producing hierarchical anode or cathode particles with controlled properties opens the door to many new directions for lithium-ion battery technology," said Gleb Yushin, an assistant professor in the School of Materials Science and Engineering at the Georgia Institute of Technology.

Researchers at Georgia Institute of technology have devised a new "bottom-up" self-assembly technique to overcome technical difficulties that had rendered more efficient silicon-based anodes impractical. The current crop of batteries only feature anodes made from graphite.

But the new technique uses “nanotechnology to fine-tune its materials properties,” allowing silicon-based anodes to be more stable inside the battery, and thereby paving the way for “a ten-fold capacity improvement over graphite.” Not only will the new technique improve the storage capacity of Li-ion batteries manifold, but such batteries will also last much longer.

A hunt for lithium-ion batteries is likely to reveal quite a few of them inside a standard home, with a host of gadgets tapping into them these days. In fact, Li-ion batteries are gaining ground in other key industries, including hybrid automobiles and alternative energy. Now, a new breakthrough promises Li-ion batteries with vastly improved performance.

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