Synthesis of LiVPO4F with high electrochemical performance by sol-gel route

Long-life and high-rate LiVPO4F/C nanocrystals modified with graphene as cathode material for lithium-ion batteries

“…The graphene modified LiVPO 4 F/C nanocomposite was synthesized via a simple sol-gel method [7,21] using V 2 O 5 , NH 4 H 2 PO 4 , LiF, citric acid and graphene oxide as the starting materials. Citric acid was used here as a reducing agent and carbon source.…”

Structural and electrochemical studies of a new Tavorite composition: LiVPO4OH

“…The lithium extraction process from LiV III PO 4 F occurs following two successive biphasic reactions involving the V 4+ /V 3+ redox couple, the first one between LiVPO 4 F and Li 2/3 VPO 4 F at 4.24V vs. This compound is generally synthesized using a long two step ceramic synthesis route and most efforts are currently focused on the development of an eco-friendly, easy and scalable synthesis process maintaining optimized electrochemical properties [30][31][32][33][34] . LiV IV PO 4 O can crystallize according to several forms (α 1 , α 2 , β 35 ), the Tavorite-like polymorph being the most investigated.…”

Synthetic strategies for better battery performance through advances in materials and chemistry: Olivine LiMn1/3Co1/3Ni1/3PO4

“…This reflects in the presence of well defined reduction peak (C 1 ) for combustion reacted product implying nicely carbon wrapped and highly crystalline in nature enhances the lithium de-intercalation and re-insertion behavior. Whereas, the large agglomerated particles with low crystallinity obtained via sol-gel results in tiny amount of Li + re-insertion than Li + extraction during oxidation [26][27][28] with the presence of poorly defined redox peaks.…”