Method of manufacturing active material
US8142750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2010 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Mar 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method of manufacturing an active material which can form an electrochemical device excellent in discharge capacity. The method of manufacturing an active material in accordance with the present invention comprises a hydrothermal synthesis step of heating a mixture including a lithium compound, a metal compound containing one species selected from the group consisting of Fe, Mn, Co, Ni, and V, a phosphorus compound, and water within a reactor while keeping an internal pressure of the reactor at 0.3 MPa or lower by ventilating the inside of the reactor to the outside, and closing the reactor at a time when the temperature of the mixture reaches 100 to 150° C.; and a firing step of firing the mixture after the hydrothermal synthesis step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.