Anode Materials for Rechargeable Li-Ion Batteries Page: 2 of 7
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1. Facilities and Personnel
This research is on materials for anodes and cathodes in electrochemical cells. The work is a mix
of electrochemical measurements and analysis of the materials by transmission electron microscopy
and x-ray diffractometry. At present, our experimental work involves only materials for Li storage, but
we have been writing papers from our previous work on hydrogen- storage materials.
We have improved our infrastructure for electrochemical measurements at Caltech. We have in
place a fabrication facility for making coin cells, and we have evaluated two different battery cyclers.
We expect to purchase a unit in the next month or so. Sample preparation for the electron microscopy
and x-ray diffractometry work is now routine. Although we are now making in-situ x-ray diffraction
measurements on thin-film solid state cells in collaboration with our JPL colleagues, we have not yet
performed in-situ measurements on operating coin cells. This is under development.
In personnel issues, two Ph.D. students completed their thesis successfully under this grant in
2000. Dr. Yun Ye, whose thesis was on hydrogen storage in novel carbon materials, is now working
for a software company, Sybex, Inc. Adrian Hightower defended successfully his Ph.D. thesis on the
electronic structure of Li- storage materials, and is now working for a startup company in Pasadena
(Nanostream, Inc.). Although her arrival was delayed until the late summer of 2000 owing to visa
problems,* Dr. Heike Gabrisch is now working as a postdoctoral fellow on the TEM parts of the
research. Mr. Jason Graetz passed his candidacy examination in May 2000, and is now working full
time on his thesis research under this grant. In August we were joined by Dr. Rachid Yazami
(arguably the inventor of intercalated graphite for Li batteries), is spending a ~year sabbatical at
Caltech away from his position at CNRS in Grenoble. His salary is paid primarily by CNRS, but
Rachid has been a big help to this DOE research. One of his graduate students from Grenoble will be
spending 4-5 months at Caltech starting in March 2001. There is a plan for Mark Obrovac, a Ph.D.
sudent with Jeff Dahn in Dalhousie Univ., to start as a postdoc in the late summer of 2001.
In a looser collaboration, Peter Rez, a theoretical physicist at Arizona State University, has been
performing electronic structure calculations to help us interpret some of the spectroscopy work.
Likewise the former students Charles Witham (now at JPL) and Adrian Hightower are involved in
writing up some of the results from, or evolving immediately out of, their Ph.D. thesis research.
The cap on HlB visas was missed, but Heike qualified for an "O" or "outstanding scientist" visa.
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Fultz, B. Anode Materials for Rechargeable Li-Ion Batteries, report, January 12, 2001; United States. (https://digital.library.unt.edu/ark:/67531/metadc717371/m1/2/: accessed April 19, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.