Lithium cell

Details Lithium cell Lithium cell

2011-07-19

2011-07-19

Ruddock, Ula C (Department: 1729)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S003000, C429S050000

Reexamination Certificate

active

07981550

ABSTRACT:
A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The cell can be in the configuration of a coin cell or the anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added. The electrolyte comprises a lithium salt dissolved in a nonaqueous solvent mixture which may include an organic cyclic carbonate such as ethylene carbonate and propylene carbon. The cell after assembly is subjected to a two step preconditioning (predischarge) protocol involving at least two distinct discharge steps having at lease one cycle of pulsed current drain in each step and at least one rest period (step rest) between said two steps, wherein said step rest period is carried out for a period of time at above ambient temperature. The preconditioning improves cell performance.

REFERENCES:
patent: 4804595 (1989-02-01), Bakos et al.
patent: 4952330 (1990-08-01), Leger
patent: 4959281 (1990-09-01), Nishi
patent: 5229227 (1993-07-01), Webber
patent: 5290414 (1994-03-01), Marple
patent: 5432030 (1995-07-01), Vourlis
patent: 5616429 (1997-04-01), Klementowski
patent: 5698176 (1997-12-01), Capparella
patent: 6218054 (2001-04-01), Webber
patent: 6849360 (2005-02-01), Marple
patent: 6866965 (2005-03-01), Lee
patent: 2003/0134204 (2003-07-01), Gan et al.
patent: 2005/0095508 (2005-05-01), Yamamoto
patent: 2005/0100786 (2005-05-01), Ryu et al.
patent: 2005/0244706 (2005-11-01), Wu
patent: 2005/0277023 (2005-12-01), Marple
patent: 2006/0046152 (2006-03-01), Webber
patent: 2006/0046153 (2006-03-01), Webber
patent: 2006/0046154 (2006-03-01), Webber
patent: 2006/0228620 (2006-10-01), Martinson

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