Material for electrode of power storage device, power storage device, and electrical appliance
US9754728B2 · kind B2 · utility
2Cited by
5References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 20, 2013 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Feb 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To improve the reliability of a power storage device. A granular active material including carbon is used, and a net-like structure is formed on part of a surface of the granular active material. In the net-like structure, a carbon atom included in the granular active material is bonded to a silicon atom or a metal atom through an oxygen atom. Formation of the net-like structure suppresses reductive decomposition of an electrolyte solution, leading to a reduction in irreversible capacity. A power storage device using the above active material has high cycle performance and high reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.