Nonaqueous electrolyte secondary battery and method of manufacturing nonaqueous electrolyte secondary battery
US10236530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2016 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Nov 25, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a nonaqueous electrolyte secondary battery includes: manufacturing a positive electrode sheet by forming a positive electrode active material layer, which includes trilithium phosphate, on a positive electrode current collector foil; accommodating the positive electrode sheet, a negative electrode sheet, and an electrolytic solution in a battery case; and charging a battery after the accommodation. During the manufacturing of the positive electrode sheet, a positive electrode active material is a composite oxide including at least lithium and manganese. During the manufacturing of the positive electrode sheet, a conductive additive is obtained by attaching at least one of manganese or manganese oxide to a surface of a carbon material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.