Cathode material for lithium ion battery and its making process

The present invention provides one metal ion doped Li-Mn composite oxide LiAxByMn2-x-yO4 and its preparation, where A is transition metal element and B is alkali earth metal or III A metal element. The joint action of the transition metal and alkali earth metal or III A metal element results in the...

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Bibliographic Details
Main Authors PEISONG LIU, ZUOLONG YU, BAILAN ZHANG
Format Patent
LanguageEnglish
Published 06.06.2001
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:The present invention provides one metal ion doped Li-Mn composite oxide LiAxByMn2-x-yO4 and its preparation, where A is transition metal element and B is alkali earth metal or III A metal element. The joint action of the transition metal and alkali earth metal or III A metal element results in the prolonged circular use life of the material. When used for constant-current charge and discharge atthe conditions of 3.3-4.35 V and 0.4 mA/sq cm, the material has the first discharge capacity greater than 115 mA.hr/g and the discharge capacity after 150 circulations over 100 mA.hr/g.
Bibliography:Application Number: CN1999117396