Patent · US Expired

Method for producing a rechargeable electrochemical element

US7129002B2 · kind B2 · utility

0Cited by

8References

10Claims

0Family size

Assignee

VARTA MICROBATTERY GMBH · DE

Inventors

Konrad Holl · Aalen, DE
Arno Perner · Olching, DE
Horst Wagner · Midland School, US
Rolf Hennrich · Ellwangen, DE
Dejan Ilic · Ellwangen (Jagst), DE

Key dates

Filing date	Apr 28, 2003
Grant date	Oct 31, 2006
Priority date	—
Expiry date	Feb 8, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4911
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for producing a rechargeable button cell having a negative electrode composed of a lithium/indium alloy, a positive lithium/intercalating electrode and an organic electrolyte, a lithium layer and an indium layer are introduced into a negative housing half-section. The positive electrode material is introduced into a positive housing half-section. The two housing half-sections are beaded to form the button cell once the organic electrolyte has been added and a separator has been placed in between, with a seal being inserted between the housing half-sections. A lithium-indium alloy is formed from the lithium layer and the indium layer by storage or a subsequent charging/discharge cycle.

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