Positive electrode plates for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary batteries
US10483594B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Sep 29, 2015 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Apr 11, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive electrode plate (11) includes a current collector (30) and a mixture layer (31) disposed on the current collector (30). The mixture layer (31) has a thin portion (32) with a thickness of less than 200 μm disposed on an inner coil half of the current collector (30) and a thick portion (33) having a larger thickness than the thin portion (32), the thick portion (33) having a yield loop height H measured by a stiffness test of 6 mm<H<15 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.