Primary alkaline battery with integrated in-cell resistances
US9958504B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2015 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Mar 30, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention is directed toward a primary AA alkaline battery. The primary AA alkaline battery includes an anode; a cathode; an electrolyte; and a separator between the anode and the cathode. The anode includes an electrochemically active anode material. The cathode includes an electrochemically active cathode material. The electrolyte includes potassium hydroxide. The primary AA alkaline battery has an integrated in-cell ionic resistance (Ri) at 22° C. of less than about 39 mΩ. The electrochemically active cathode material includes electrolytic manganese dioxide. The electrolytic manganese dioxide has a specific cathode loading from about 2.9 g/cm3 to about 3.45 g/cm3. The separator has a porosity of greater than 75%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.