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At present Li-ion batteries are the premier rechargeable energy storage technology and they offer a promising future as a power source for high energy density battery applications. Unfortunately, their high performance still falls short of energy density goals in many military ground battery and soldier portable applications. Although a number of factors within the battery cell contribute to this performance parameter, the most crucial one relates to how much energy can be stored in the positive and negative electrode materials of the lithium ion battery. Very little focus had been shown in the research of the electrochemistry of transition metal fluorides until Rutgers, The State University of New Jersey began its investigation. The reason for this apparent lack of interest in these compounds was that their intrinsic properties appeared to make them less desirable as possible electrode materials for lithium batteries.