Built-in charge circuit for secondary battery and secondary battery with the built-in charge circuit
US8945735B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2010 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Jun 6, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A secondary battery which includes a built-in charge circuit. The secondary battery includes a bare cell having a positive electrode and a negative electrode; a protection circuit section electrically connected to the bare cell; a positive electrode charge/discharge terminal and a negative electrode charge/discharge terminal electrically connected to the protection circuit section; a charge circuit section for supplying a charging current to the protection circuit section; and a positive electrode charge terminal and a negative electrode charge terminal electrically connected to the charge circuit section, wherein the charge circuit section includes a first reverse-current prevention part, and a second reverse-current prevention part for preventing damage of the first reverse-current prevention part due to the reversed charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.