Lithium-ion battery materials with improved properties
US9160001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2011 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Jan 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cobalt-containing phosphate material can comprise lithium (Li) (or, alternatively or additionally other alkali metal(s)), cobalt (Co), phosphate (PO4), and at least two additional metals other than Li and Co (e.g., as dopants and/or metal oxides), and can have a molar ratio of Co to a total amount of Co and the additional metals (e.g., as dopants and/or metal oxides) of at least 0.2, at least 0.3, at least 0.5, at least 0.7, or at least about 0.75. The cobalt-containing phosphate material can have a molar ratio of Co to a total amount of Co and the additional metals (e.g., as dopants and/or metal oxides) ranging from 0.2 to 0.98, from 0.3 to 0.98, from 0.3 to 0.94, from 0.5 to 0.98, from 0.5 to 0.94, or alternatively from 0.5 to 0.9, from 0.7 to 0.9, or from 0.75 to 0.85.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.