Significant if it pans out.
Arguably seeking to do what LiFePO4 does with a different material and
structure.
Paper abstract here

    http://pubs.acs.org/doi/abs/10.1021/nl403979s?journalCode=3Dnalefd

mAh/gram sounds good but no clues as to how that translates into all up
energy densities.
Performance at 1000 cycles good and claimed degradation rate excellent but
tbd

Ge sounds a less likely to be cost effective material than Fe to build a
cage from.


        Russell

http://www.rdmag.com/news/2014/02/researchers-make-breakthrough-battery-tec=
hnology?et_cid=3D3760981&et_rid=3D486007905&type=3Dheadline
>
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