METHOD FOR CHARGINGDISCHARGING POSITIVE ELECTRODE

专利名称：METHOD FOR CHARGING/DISCHARGING

POSITIVE ELECTRODE ACTIVE MATERIAL INA LITHIUM SECONDARY BATTERY,CHARGING/DISCHARGING SYSTEMPROVIDED WITH LITHIUM SECONDARYBATTERY AND VEHICLE, ELECTRONICDEVICE, BATTERY MODULE, BATTERY PACK

发明人：TAKEZAWA, Hideharu,IWAMOTO,

Kazuya,YAMAMOTO, Taisuke,UGAJI,Masaya,HIRAOKA, Tatsuki

申请号：EP10816895.6申请日：20100917公开号：EP2477270A1公开日：20120718

摘要：In a charge/discharge method for a positive-electrode active material in alithium secondary battery, the lithium secondary battery includes a positive electrodecontaining a positive-electrode active material capable of occluding and releasing lithiumions, a negative electrode containing a negative-electrode active material capable ofoccluding and releasing lithium ions, a separator located between the positive electrodeand the negative electrode, and an electrolyte having a lithium ion conductivity; and thepositive-electrode active material contains a nickel-type lithium-containing complexoxide. The positive electrode, which has been charged, is discharged until having a firstpotential VDp1 which is no less than 2.7 V and no more than 3.4 V on a lithium metal basis,

and then the discharge is finished. Owing to this, the charge/discharge cycle life can beimproved while the capacity of the lithium secondary battery is secured.

申请人：Panasonic Corporation

地址：1006, Oaza Kadoma Kadoma-shi Osaka 571-8501 JP

国籍：JP

代理机构：TBK

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