Lithium ion secondary battery
US9634316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Sep 24, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium ion secondary battery includes a positive electrode capable of occluding and discharging lithium ions, a negative electrode capable of occluding and discharging the lithium ions, and a nonaqueous electrolyte including a lithium salt, and being reversively charged/discharged. The positive electrode includes a metal plate, a metal film formed on a surface of the metal plate, and a positive electrode active material layer, the metal film includes one or more metals selected from the group consisting of ruthenium, osmium, palladium, and platinum having a orientation, the positive electrode active material layer is a compound expressed by the following expression:LiCoxNi1-xO2, (where 0≦x≦1)and is epitaxially grown and formed on a surface of the metal film, and the positive electrode active material is formed such that a c axis of a crystal structure of the positive electrode active material is perpendicular to the metal film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.