Lithium ion secondary battery
US12046710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2019 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Aug 1, 2041 |
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 that can operate in a high-temperature environment of 85° C. The lithium ion secondary battery includes a positive electrode active material that can store and release lithium ions Li′, a positive electrode binder that binds the positive electrode active material, a negative electrode active material that can store and release lithium ions Li+, a negative electrode binder that binds the negative electrode active material, and an electrolytic solution containing an organic solvent and an imide-based lithium salt. The negative electrode active material is previously doped with lithium ions. The positive electrode binder has a Hansen solubility parameter-based relative energy difference (RED) value of more than 1 with respect to the electrolytic solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.