upward

VPO4

Vanadium phosphate (Wikipedia)

Cathode

C Liu, R Masse, X Nan, G Cao, A promising cathode for Li-ion batteries: Li3V2(PO4)3, Energy Storage Materials 4, 15 (2016)


P F Xiao, M O Lai, L Lu, Transport and electrochemical properties of high potential tavorite LiVPO4F, Solid State Ionics 242, 10 (2013)