Lithium battery structure incorporating lithium pouch cells
AssigneeElectrofuel Inc.
InventorsJames K. Jacobs, Sankar Dasgupta
Life of this patent
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Abstract
A lithium battery having a plurality of interconnected pouch cells encased in a first cover which is substantially impermeable to moisture ingress and electrolyte egress. The first cover is surrounded by a rigid outer cover which is sealed in a substantially moisture impervious manner. Positive, negative and monitoring leads extend in a sealed manner through the first cover and are connected to a charge monitoring and controlling circuit board. The circuit board may be located within or outside of the outer cover. Positive and negative terminals on and outside of the outer cover are respectively connected to positive and negative leads which extend through the outer cover in a substantially fluid sealed manner.
Claims19
A lithium battery comprising:
- a plurality of electrically interconnected, electrolyte containing, sealed pouch cells encased in a first cover which is substantially impermeable to moisture ingress and electrolyte egress;
- at least a positive lead and a negative lead extending, in a moisture and oxygen sealed manner from said pouch cells through said first cover;
- a substantially rigid outer cover surrounding said first cover in substantially moisture impervious manner, said outer cover being substantially non-reactive with said electrolyte;
- and,
- positive and negative terminals on an outside of said outer cover respectively connected to said positive and said negative leads by respective conductors which extend through said outer cover in a substantially fluid scaled manner.
A lithium battery comprising:
- a plurality of sealed pouch cells in a hermetically scaled first cover placed in a substantially rigid box having side walls and first and second opposite end walls;
- said first end wall is sealingly joined to said side walls at a first juncture;
- said first end wall and said first juncture ar2 encased in a rubberized coating which sealingly engages said first end wall and said side walls, at least across said first juncture;
- said second end wall is sealingly joined to said side walls at a second juncture;
- said plurality of sealed pouch cells are interconnected by interconnecting leads to at least one positive lead and one negative lead;
- said positive and negative leads extend through said first cover in a hermetically sealed manner and through said second juncture in at least a moisture sealed manner;
- said second end wall and second juncture are encased in a rubberized coating;
- and,
- said positive and negative leads are connected to respective positive and negative terminals which extend through said rubberized coating encasing said second end.
Dependencies are inferred from the claim text.