NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery having voltage of 1.5 V class, and an improved over-discharging characteristic and cycle characteristic. SOLUTION: This nonaqueous electrolyte secondary battery is provided with a positive electrode mix 2 containing Li4/3Ti5...

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Bibliographic Details
Main Author SHIKODA MASAKI
Format Patent
LanguageEnglish
Published 11.04.2000
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery having voltage of 1.5 V class, and an improved over-discharging characteristic and cycle characteristic. SOLUTION: This nonaqueous electrolyte secondary battery is provided with a positive electrode mix 2 containing Li4/3Ti5/3O as the active material, a negative electrode mix 5 containing the carbon material previously doped with lithium, and the nonaqueous electrolyte. The positive electrode mix 2 contains a graphite carbon material as the conductive material and the fluorine resin as a binder. When the area of the positive electrode mix facing that of the negative electrode mix is expressed as S (mm2) and the thickness thereof is expressed as (t) (mm), S and (t) satisfy the relation [2(S/500)/1.3]<t<[2(S/500)×1.2].
Bibliography:Application Number: JP19980279082