Patent · US Expired

Sealed tubular lead-acid battery

US5541013A · kind A · utility

11Cited by
9References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 15, 1989
Grant dateJul 30, 1996
Priority date
Expiry dateDec 15, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P70/50
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A sealed tubular lead-acid battery is provided which offers high-rate discharging performance and long cycle life by loading granules of fine particles of silicon dioxide both in a gap between a separator and around each of a positive and negative plate, as well as around the assembled element comprising a separator and the plates. An electrolyte is retained on the positive plate, the negative plate, the separator, and the granules of fine silicon dioxide particles.

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