Lithium transition metal phosphate secondary agglomerates and process for its manufacture
AssigneeJohnson Matthey Public Limited Company
InventorsRainald Forbert, Gerhard Nuspl, Nicolas Tran, Guoxian Liang
Life of this patent
Estimating the term…
Abstract
A Lithium-transition-metal-phosphate compound of formula Li0.9+xFe1-yMyPO4) in the form of secondary particles made of agglomerates of spherical primary particles wherein the primary particles have a size in the range of 0.02-2 pm and the secondary particles a mean size in the range of 10-40 pm and a BET surface of 16-40 m2/g, a process for its manufacture and the use thereof.
Claims10
A lithium-transition-metal-phosphate compound of formula Li0.9+xFe1-yMy(PO4) with x≤0.3 and 0≤y≤1 and M is a metal or semimetal or mixtures thereof in the form of secondary particles made of agglomerates of spherical primary particles,
- wherein the primary particles have a size in the range of 0.02-2 μm and
- the secondary particles have a mean size (d50) of 5-40 μm and a BET surface of 16-40 m2/g and
- wherein the lithium-transition-metal-phosphate compound has a tap density of 1250-1600 g/l.
A lithium-transition-metal-phosphate compound of formula Li0.9+xFe1-yMy(PO4) with x≤0.3 and 0≤y≤1 and M is a metal or semimetal or mixtures thereof in the form of secondary particles made of agglomerates of spherical primary particles,
- wherein the primary particles have a size in the range of 0.02-2 μm,
- wherein the secondary particles have a mean size (d50) of 5-40 μm and a BET surface of 16-40 m2/g,
- wherein the lithium-transition-metal-phosphate compound has a tap density of 1250-1600 g/l and,
- wherein the lithium-transition-metal phosphate compound has a bulk porosity of 65-80%.
Dependencies are inferred from the claim text.