Lithium ion battery with negative electrode in which state of charge at a potential to be 0.1 V with respect lithium potential is 60% or more, and positive electrode having a density positive electrode composite of 2.4 to 2.7 g/cm3
US10090521B2 · kind B2 · utility
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Key dates
| Filing date | Jun 9, 2015 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Jun 9, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium ion battery includes: a negative electrode in which a state of charge at a potential to be 0.1 V with respect to a lithium potential is 60% or more; and a positive electrode containing a lithium-containing composite metal oxide, and a capacity ratio of the positive electrode and the negative electrode (negative electrode capacity/positive electrode capacity) is 1 or more and less than 1.2. In the lithium ion battery described above, the lithium-containing composite metal oxide contains layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.