Li4 V7 O9 F7

semiconductor

· Li4 V7 O9 F7

Li₄V₇O₉F₇ is a mixed-valence vanadium oxide fluoride compound belonging to the lithium vanadium oxide family, which exhibits semiconductor behavior. This material is primarily explored in battery and electrochemical energy storage research, where vanadium oxyfluorides are investigated for their potential as cathode materials and ion-conducting phases due to their layered structural frameworks and redox-active vanadium chemistry. The fluorine substitution in the lattice is designed to enhance electrochemical performance and structural stability compared to purely oxide analogues, making it of interest to researchers developing next-generation lithium-ion and solid-state battery systems.

lithium-ion battery cathodeselectrochemical energy storage (R&D)solid-state battery materialsvanadium-based redox systemsion-conducting ceramicsadvanced battery research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.05200	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-2.638	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Li4 V7 O9 F7

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control