Active material and positive electrode and lithium-ion second battery using same

摘要

An active material contains a triclinic LiVOPO4 crystal particle, while the crystal particle has a spherical form and an average particle size of 20 to 200 nm.

主权项

1. An active material containing a triclinic LiVOPO4 crystal particle, the crystal particle having:
a spherical form; a longer to shorter diameter ratio (longer diameter/shorter diameter) of 1 to 2; an average particle size of 20 to 92 nm; and a BET specific surface area of 2 to 50 m2/g.