High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries
US9716265B2 · kind B2 · utility
19Cited by
17References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2014 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | Aug 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The disclosed embodiments relate to the manufacture of a precursor co-precipitate material for a cathode active material composition. During manufacture of the precursor co-precipitate material, an aqueous solution containing at least one of a manganese sulfate and a cobalt sulfate is formed. Next, a NH4OH solution is added to the aqueous solution to form a particulate solution comprising irregular secondary particles of the precursor co-precipitate material. A constant pH in the range of 10-12 is also maintained in the particulate solution by adding a basic solution to the particulate solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.