Negative electrode material and battery using the same

Details Negative electrode material and battery using the same Negative electrode material and battery using the same

2006-08-29

2006-08-29

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S225000, C429S224000, C429S220000, C429S231400, C429S229000

Reexamination Certificate

active

07097938

ABSTRACT:
A negative electrode material and a battery which have an excellent cycle characteristic as well as a high capacity are provided. A positive electrode housed in an exterior can and a negative electrode housed in an exterior cup are laminated with a separator therebetween. An electrolytic solution of lithium salt dissolved in a solvent is poured into the inside of both the exterior can and the exterior cup. The negative electrode contains Mg2−xMIIxMI. MI expresses a first element such as Si, Sn, Ge, Pb, or the like. MII expresses a second element which is a metallic element, preferably Mn, Cu, Zn, or the like except both Mg and the first element. X is preferably in the range of 0.1≦x≦1.9. Substituting part of Mg by the second element MII can produce the distortion of the crystal structure, ease distortion accompanying the occluding/releasing lithium, and improve the charge and discharge efficiency and the cycle characteristic.

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Dascoulidou et al. (“Preparation, structure, and magnetic properties of the alkaline earth manganese compounds AMnX with A= Mg, Ca, Sr, Ba and X= Si, Ge, Sn”, Zeitschrift fuer Anorganische und Allgemeine Chemie (1998), 624 (1), 119-123, no month.
CAPLUS English Abstract for Dascoulidou et al. , Zeitschrift fuer Anorganische und Allgemeine Chemie (1998), 624 (1), 119-123, no month available.

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