Cylindrical secondary battery having piezoelectric element disposed therein
US11362377B2 · kind B2 · utility
0Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2018 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Aug 17, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cylindrical secondary battery includes a jelly-roll type electrode assembly having a structure in which a long sheet type positive electrode and a long sheet type negative electrode are wound with a separator interposed between the positive electrode and the negative electrode. The cylindrical secondary battery also includes a cylindrical battery case configured to receive the jelly-roll type electrode assembly, and a piezoelectric element configured to generate electrical energy due to the volumetric expansion of the jelly-roll type electrode assembly caused by charging and discharging the jelly-roll type electrode assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.