Negative electrode active material for non-lithium secondary battery, method of preparing the same, negative electrode for non-lithium secondary battery including the same, and non-lithium secondary battery including the negative electrode
US9640799B2 · kind B2 · utility
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Key dates
| Filing date | Nov 11, 2014 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Jun 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative electrode active material for a non-lithium secondary battery, the negative electrode active material including a complex including a hard carbon having a specific surface area of about 50 square meters per gram or less and a ratio of a D-band peak intensity to a G-band peak intensity of 1 or less when analyzed by Raman spectroscopy; and a component including at least one selected from a Group 1 element, an oxide of a Group 1 element, a Group 2 element, an oxide of a Group 2 element, an element of Groups 13 to 16, an oxide of an element of Groups 13 to 16, and an oxide of an element of Groups 3 to 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.