US 6,743,546 B1 · Laminate sheath type battery

Abstract

Battery with a flexible laminate casing includes a means for fixing the electrode assembly (2) within the casing (1, 18). The fixing means may be a frame (19, 33, 38, 50, 54) attached to the periphery of the electrode assembly, or an insulating spacer (59, 69, 70, 77, 78) encased within the casing together with the electrode assembly such as to fill a space between one end of the electrode assembly and the casing. Alternatively, the fixing means may be constructed of a material with which the casing and the electrode assembly are joined together by applying heat and pressure, or may be an abutting surface (87h) provided to the casing (87) itself such as to make contact with one end face of the electrode assembly within the casing.

Claims50

Dependent claims

A battery comprising,

liquid electrolyte and an electrode assembly, both accommodated within a sealed casing made of a laminate sheet, the electrode assembly including a plurality of positive electrode plates and a plurality of negative electrode plates stacked upon one another with a plurality of intervening separators therebetween, the positive electrode plates having respective positive electrode terminals and a positive electrode lead joined to the positive electrode terminals, and the negative electrode plates having respective negative electrode terminals and a negative electrode lead joined to the negative electrode terminals, the positive electrode lead and the negative electrode lead being extended outside through an end of the casing;
and
a fixing means for fixing the electrode assembly in position within the casing.

A battery comprising:

a liquid electrolyte and an electrode assembly;
a casing formed of laminate sheet;
said liquid electrolyte and said electrode assembly accommodated within said casing;
said electrode assembly including a plurality of positive electrode plates and a plurality of negative electrode plates stacked upon one another with a plurality of intervening separators therebetween, the positive electrode plates having respective positive electrode terminals and a positive electrode lead joined to the positive electrode terminals, and the negative electrode plates having respective negative electrode terminals and a negative electrode lead joined to the negative electrode terminals, said positive electrode lead and said negative electrode lead extending through an end of the casing;
and
an electrode assembly fixing structure including:
a first substantially planar region;
said first substantially planar region having three edge regions extending transversely to said first substantially planar region;
a second substantially planar region;
said second substantially planar region having three edge regions extending transversely to said second substantially planar region;
and
said first substantially planar region being joined to said second substantially planar region.

9 more elements

Dependencies are inferred from the claim text.

Laminate sheath type battery

Life of this patent

Laminate sheath type battery

Life of this patent

Abstract

Claims50