Non-aqueous electrolyte secondary battery

Details Non-aqueous electrolyte secondary battery Non-aqueous electrolyte secondary battery

1997-11-26

2000-07-04

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

4292181, H01M 448

Patent

active

06083644&

ABSTRACT:
A 1.5 V non-aqueous electrolyte secondary battery having high energy density, excellent charge and discharge characteristics and long cycle life is provided. The non-aqueous electrolyte secondary battery uses, as the negative electrode active material, lithium-containing silicon oxide represented by the compositional formula Li.sub.x SiO.sub.y and defined such that the lithium content x and oxygen amount y are satisfied with 1.5.ltoreq.x.ltoreq.4.5 and 0<y<2, respectively, and also uses, as the positive electrode, lithium-containing titanium oxide represented by the general formula Li.sub.x Ti.sub.y O.sub.4 wherein 0.ltoreq.x.ltoreq.3 and 1.6.ltoreq.y.ltoreq.2.2 or lithium-containing iron sulfide represented by the general formula Li.sub.x FeS.sub.y wherein x.ltoreq.1.1 and 0.5.ltoreq.y.ltoreq.2.5, so that a secondary battery of about 1.5 V having high energy density, less inner resistance and excellent charge and discharge characteristics can be obtained. The non-aqueous electrolyte secondary battery has high charge and discharge efficiency, does not cause defect such as inner short-circuit due to formation of dendrite, and it is very stable with a long cycle life.

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Patent Abstracts of Japan, vol. 095, No. 010 Nov. 30, 1995.
Bonino et al., "Anatase as a Cathode Material in Lithium Organic Electrolyte Rechargeable Batteries", J. Power Sources, vol. 6, pp. 261-270. (No Month Available), 1981.

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