Non-aqueous electrolyte secondary cell

Details Non-aqueous electrolyte secondary cell Non-aqueous electrolyte secondary cell

2006-11-21

2006-11-21

Crepeau, Jonathan (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

C429S145000, C429S254000

Reexamination Certificate

active

07138207

ABSTRACT:
A non-aqueous electrolyte secondary cell which achieves satisfactory low temperature characteristics and high safety against overcharging in combination. The cell includes a lithium-containing cathode, an anode capable of doping and undoping lithium, a non-aqueous electrolyte and a separator. The separator is made up by a plurality of layers of a porous material or materials presenting micro-sized pores. The layers of the porous material or materials is formed of micro-porous separator materials representing different combinations of the porosity, melting point or material/compositions.

REFERENCES:
patent: 4650730 (1987-03-01), Lundquist et al.
patent: 5565281 (1996-10-01), Yu et al.
patent: 6544682 (2003-04-01), Takami et al.
patent: 2002/0114993 (2002-08-01), Miyaki et al.

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