Power storage device pre-doping agent and production method for same
US12113172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2022 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Feb 7, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pre-doping agent for a power storage device includes a lithium iron oxide represented by Formula (1), wherein in X-ray diffractometry, a half width of a diffraction peak at a diffraction angle (2θ) of 23.6°±0.5° is 0.06° to 0.17°, and an intensity ratio (I44.6/I23.6) of a diffraction peak intensity (I44.6) at a diffraction angle (2θ) of 44.6°±0.5° to a diffraction peak intensity (I23.6) at a diffraction angle (2θ) of 23.6°±0.5° is less than 8%. The pre-doping agent for a power storage device with a large irreversible capacity can be suitably used as a power storage device, which can suppress reduction in a volume energy density of a power storage device, can reduce a production cost, can prevent decomposition of an electrolytic solution. LixFeOy (1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.