Patent · US Expired

Secondary battery charger

US5640080A · kind A · utility

9Cited by
1References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 6, 1995
Grant dateJun 17, 1997
Priority date
Expiry dateJul 6, 2015

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A charging apparatus charges a secondary battery in alternating charging and rest periods. The charge amount supplied in the charging periods is restricted to an amount which reduces or eliminates deterioration of the secondary battery by overcharging.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.