Non-aqueous liquid electrolyte secondary cell

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

1997-09-22

1999-10-05

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429 53, 429332, H01M 448

Patent

active

059621672

ABSTRACT:
A non-aqueous liquid electrolyte secondary cell capable of preventing bursting or explosion thereof even when a current breaking device or a relief valve for pressure release fails in operation thereof due to any trouble or failure thereof. The cell includes a wound-up body formed by laminatedly spirally winding up a positive electrode and a negative electrode together while interposing a separator therebetween. The wound-up body thus formed is received in a cell can. The negative electrode is constructed by forming a negative active material layer containing amorphous carbon on each of both surfaces of a negative collector. The positive electrode is constructed by forming a positive active material layer containing LixCoO.sub.2 on each of both surfaces of a positive collector. The negative electrode is electrically connected to the cell can through a negative electrode lead. The positive electrode is electrically connected to the cell lid through a positive electrode lead joined to a connection plate of the cell lid by welding.

REFERENCES:
patent: 4465747 (1984-08-01), Evans
patent: 5427875 (1995-06-01), Yamamoto et al.
patent: 5443930 (1995-08-01), Shoji et al.
patent: 5567539 (1996-10-01), Takahashi et al.
patent: 5766791 (1998-06-01), Takahashi et al.

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